UNITED STATES
SECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549

Form 20-F

|ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
|------------------------------------------------------------------------------------
|For the fiscal year ended: December 31, 2003                                        

Commission file number: 1-10220

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Repsol YPF, S.A.(Exact name of registrant as specified in its charter)

|Kingdom of Spain(Jurisdiction of incorporation or organization)                        
|---------------------------------------------------------------------------------------
|Paseo de la Castellana, 27828046 Madrid, Spain(Address of principal executive offices)

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Securities
registered or to be registered pursuant to Section 12(b) of the Act:

|Title of each class                                                                                                                  |  | Name of each exchange
on which registered
|------------------------------------------------------------------------------------------------------------------------------------ |  | -----------------------------------------
|Ordinary shares of Repsol YPF, S.A., par value €1.00 per share                                                                       |  | New York Stock Exchange*                 
|American Depositary Shares, each representing the right to receive one ordinary share of Repsol YPF, S.A., par value €1.00 per share |  | New York Stock Exchange                  
|Series A 7.45% non-cumulative guaranteed preference shares of Repsol International Capital Limited                                   |  | New York Stock Exchange                  

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The
number of certain outstanding shares of each class of stock of Repsol International Capital Limited benefiting from a guarantee of Repsol YPF, S.A. at December 31, 2003 was:

|Series A 7.45% non-cumulative guaranteed preference shares                   |  | 29,000,000
|---------------------------------------------------------------------------- |  | ----------
|Series B floating rate quarterly non-cumulative guaranteed preference shares |  | 1,000,000 
|Series C floating rate quarterly non-cumulative guaranteed preference shares |  | 2,000,000 

The
number of outstanding shares of each class of stock of Repsol YPF, S.A. as of December 31, 2003 was:

|Ordinary shares, par value €1.00 per share |  | 1,220,863,463
|------------------------------------------ |  | -------------

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Indicate
by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the
preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject to such filing requirements for the past 90 days.

Yes ý        No o

Indicate by check mark which financial statement item the registrant has elected to follow.

Item 17 o        Item 18 ý



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CROSS REFERENCE SHEET

The
following table provides cross reference between the contents of this annual report and the requirements of Form 20-F.

|Form 20-F Item |  | Repsol YPF 2003 Annual Report on Form 20-F                                             
|-------------- |  | ---------------------------------------------------------------------------------------
|PART I         |  | PART I                                                                                 
|Item 1.        |  | *                                                                                      
|Item 2.        |  | *                                                                                      
|Item 3.        |  | Item 1. Key Information about Repsol YPF                                               
|Item 4.        |  | Item 2. Information on Repsol YPF                                                      
|Item 5.        |  | Item 3. Operating and Financial Review and Prospects                                   
|Item 6.        |  | Item 4. Directors, Senior Management and Employees                                     
|Item 7.        |  | Item 5. Major Shareholders and Related Party Transactions                              
|Item 8.        |  | Item 6. Financial Information                                                          
|Item 9.        |  | Item 7. Offering and Listing                                                           
|Item 10.       |  | Item 8. Additional Information                                                         
|Item 11.       |  | Item 9. Quantitative and Qualitative Disclosure About Market Risk                      
|Item 12.       |  | *                                                                                      
|PART II        |  | PART II                                                                                
|Item 13.       |  | Item 10. Defaults, Dividend Arrearages and Delinquencies                               
|Item 14.       |  | Item 11. Material Modifications to the Rights of Securities Holders and Use of Proceeds
|Item 15.       |  | Item 12. Controls and Procedures                                                       
|Item 16.       |  | *                                                                                      
|Item 16A.      |  | Item 13A. Audit Committee Financial Expert                                             
|Item 16B.      |  | Item 13B. Code of Ethics                                                               
|Item 16C.      |  | Item 13C. Principal Accountant Fees and Services                                       
|Item 17.       |  | *                                                                                      
|PART III       |  | PART III                                                                               
|Item 18.       |  | Item 13. Financial Statements                                                          
|Item 19.       |  | Item 14. Exhibits                                                                      

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Table of Contents

|Oil and Gas Terms                   |                                                      | iii                                                                          
|----------------------------------- | ---------------------------------------------------- | -----------------------------------------------------------------------------
|Conversion Table                    |                                                      | iv                                                                           
|Presentation of Certain Information |                                                      | iv                                                                           
|Forward-looking Statements          |                                                      | v                                                                            
|References                          |                                                      | v                                                                            
|PART I                              |                                                      | 1                                                                            
|                                    | 1. Key Information about Repsol YPF                  |                                                                              
|                                    |                                                      | 1.1 Selected consolidated financial data                                     
|                                    |                                                      | 1.2 Exchange rates                                                           
|                                    |                                                      | 1.3 Risk Factors                                                             
|                                    | 2. Information on Repsol YPF                         |                                                                              
|                                    |                                                      | 2.1 Repsol YPF                                                               
|                                    |                                                      | 2.2 Operations                                                               
|                                    |                                                      | 2.3 Regulation of the Petroleum Industry                                     
|                                    |                                                      | 2.4 Description of Property                                                  
|                                    |                                                      | 2.5 Seasonality                                                              
|                                    |                                                      | 2.6 Risk Control Systems                                                     
|                                    | 3. Operating and Financial Review and Prospects      |                                                                              
|                                    |                                                      | 3.1 Summarized Income Statement                                              
|                                    |                                                      | 3.2 Factors Affecting Repsol YPF's Consolidated Results of Operations        
|                                    |                                                      | 3.3 U.S. GAAP Reconciliation                                                 
|                                    |                                                      | 3.4 Overview of Consolidated Results of Operations                           
|                                    |                                                      | 3.5 Results of Operations by Business Segment                                
|                                    |                                                      | 3.6 Extraordinary Income (Loss)                                              
|                                    |                                                      | 3.7 Analysis of Movements in Other Provisions                                
|                                    |                                                      | 3.8 Liquidity and Capital Resources                                          
|                                    |                                                      | 3.9 Research and Development                                                 
|                                    |                                                      | 3.10 Recent Developments                                                     
|                                    | 4. Directors, Senior Management and Employees        |                                                                              
|                                    |                                                      | 4.1 Directors and Officers of Repsol YPF                                     
|                                    |                                                      | 4.2 Compensation of Directors and Officers                                   
|                                    |                                                      | 4.3 Share Ownership of Directors and Officers                                
|                                    |                                                      | 4.4 Employees                                                                
|                                    | 5. Major Shareholders and Related Party Transactions |                                                                              
|                                    |                                                      | 5.1 Major Shareholders of Repsol YPF and Restrictions on Certain Transactions
|                                    |                                                      | 5.2 Related Party Transactions                                               
|                                    |                                                      | 5.3 Interest of Management in Certain Transactions                           
|                                    | 6. Financial Information                             |                                                                              
|                                    |                                                      | 6.1 Financial Information                                                    
|                                    |                                                      | 6.2 Legal Proceedings                                                        
|                                    |                                                      | 6.3 Dividends Policy                                                         
|                                    | 7. Offering and Listing                              |                                                                              
|                                    |                                                      | 7.1 Historical Trading Information                                           
|                                    |                                                      | 7.2 Nature of the Trading Market                                             
|                                    |                                                      | 7.3 Securities Market Regulation                                             
|                                    |                                                      | 7.4 Trading by Subsidiaries/Affiliates                                       
|                                    | 8. Additional Information                            |                                                                              
|                                    |                                                      | 8.1 Memorandum and Articles of Association                                   
|                                    |                                                      |                                                                              

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|         |                                                                                  | 8.2 Dividends                        |     | 162
|-------- | -------------------------------------------------------------------------------- | ------------------------------------ | --- | ---
|         |                                                                                  | 8.3 Taxation                         |     | 163
|         |                                                                                  | 8.4 Available Information            |     | 167
|         |                                                                                  | 8.5 Material Contracts               |     | 167
|         | 9. Quantitative and Qualitative Disclosure About Market Risk                     |                                      | 168
|         |                                                                                  | 9.1 Oil Price Exposure               |     | 168
|         |                                                                                  | 9.2 Foreign Currency Exposure        |     | 171
|         |                                                                                  | 9.3 Interest Rate Exposure           |     | 174
|         |                                                                                  | 9.4 Employee Share Purchase Programs |     | 179
|PART II  |                                                                                  | 180                                 
|         | 10. Defaults, Dividend Arrearages and Delinquencies                              |                                      | 180
|         | 11. Material Modifications to the Rights of Security Holders and Use of Proceeds |                                      | 180
|         | 12. Controls and Procedures                                                      |                                      | 180
|         | 13A. Audit Committee Financial Expert                                            |                                      | 180
|         | 13B. Code of Ethics                                                              |                                      | 180
|         | 13C. Principal Accountant Fees and Services                                      |                                      | 181
|PART III |                                                                                  | 183                                 
|         | 14. Financial Statements                                                         |                                      | 183
|         | 15. Exhibits                                                                     |                                      | 183
|         | 16. Signatures                                                                   |                                      | 185

ii

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Oil and Gas Terms

The following terms have the meanings shown below unless the context indicates otherwise:

|"acreage"                   |  | The total area, expressed in acres, over which Repsol YPF has interests in exploration or production. Net acreage is Repsol YPF's interest, expressed in acres, in the relevant exploration or production area.                                                                                                                                                                                                                                                                                                                                                                                                                         
|--------------------------- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|"calendar day"              |  | When used with respect to production or capacity, means total annual production or capacity (after taking into account scheduled plant shutdowns) divided by 365.                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
|"condensate"                |  | Light hydrocarbon substances produced with natural gas which condense into liquid at normal temperatures and pressures associated with surface production equipment.                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|"crude oil"                 |  | Crude oil with respect to Repsol YPF's production and reserves includes condensate and natural gas liquids.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
|"distillation"              |  | A process by which liquids are separated or refined by vaporization followed by condensation.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|"LNG"                       |  | Liquefied natural gas.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|"LPG"                       |  | Liquefied petroleum gas.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|"mmcf"                      |  | Million cubic feet.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|"proved reserves"           |  | Proved oil and gas reserves are the estimated volumes of crude oil, natural gas and others liquid hydrocarbons which geological and engineering data demonstrates with reasonable certainty that can be extracted from known reservoirs in future years
under existing economic and operating conditions, such as prices and costs as of the date of the estimates. Prices include consideration of changes in existing prices only by contractual arrangements, but not of escalations based upon future
conditions.                                                                                                                   
|"proved developed reserves" |  | Proved developed reserves are reserves that can be expected to be recovered through existing wells with existing equipment and operating methods and current economic conditions as of each balance sheet date. Additional oil and gas expected to be
obtained through the application of fluid injection or other improved recovery techniques for supplementing natural forces and mechanisms of primary recovery are included as "proved developed reserves" only after testing by a pilot project or after
the operation of an installed program has confirmed through production response that increased recovery will be achieved.
|                            |  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         

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|"proved undeveloped reserves" |  | Proved undeveloped reserves are reserves that are expected to be recovered from new wells on undrilled acreage, or from existing wells where a relatively major expenditure is required for recompletion, but does not include reserves attributable to
any acreage for which an application of fluid injection or other improved recovery techniques is contemplated, unless such techniques have been proved effective by actual tests in the area and in the same reservoir. Reserves on undrilled acreage are
limited to those drilling units offsetting productive units that are reasonably certain of production when drilled. Proved reserves for other undrilled units can be claimed only where it can be demonstrated with certainty that there is continuity of
production from the existing productive formation.
|----------------------------- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Conversion Table

1
tonne = 1,000 kilograms = 2,204 pounds
1 barrel = 42 U.S. gallons
1 tonne of oil = approximately 7.3 barrels (assuming a specific gravity of 34 degrees API (American Petroleum Institute))
1 barrel of oil equivalent = 5,615 cubic feet of gas = 1 barrel of oil, condensate or natural gas liquids
1 kilometer = 0.63 miles
1 million Btu = 252 termies
1 cubic meter of gas = 35.3 cubic feet of gas
1 cubic meter of gas = 10 termies

Presentation of Certain Information

Since January 1, 1999 Repsol YPF publishes its financial statements in euros. Repsol YPF prepares its financial statements in conformity with generally
accepted accounting principles in Spain, referred to as Spanish GAAP. Spanish GAAP differs in important respects from U.S. generally accepted accounting principles, referred to as U.S. GAAP. See
Note 27 to the audited Consolidated Financial Statements for the years ended December 31, 2003, 2002 and 2001 included elsewhere in this annual report for a description of the principal
differences between Spanish and U.S. GAAP as they relate to Repsol YPF and for a reconciliation of net income and total shareholders' equity for the periods and as of the dates indicated. See also
Section 3.3 "Operating and Financial Review and ProspectsU.S. GAAP Reconciliation."

Unless
otherwise indicated, the information contained in this annual report reflects:



iv

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Starting
in fiscal 2002, natural gas distribution volumes are expressed in billion cubic meters. This change seeks to standardize the information presented in this annual report and
other reports published by Repsol YPF. Repsol YPF has historically expressed gas volumes in millions of termies and billion cubic feet. For comparison and uniformity purposes, and unless otherwise
stated, 2001 natural gas distribution volumes have been restated in billion cubic meters throughout this annual report.

Unless
otherwise indicated, where this annual report provides translations into euros of amounts denominated in or resulting from transactions effected in currencies other than the euro,
the conversion has been effected at the relevant exchange rate on the effective date of the transaction for accounting purposes. All other translations into euros of amounts in currencies other than
the euro in this annual report have been calculated, unless otherwise indicated, at the relevant exchange rate on December 31, 2003.

Forward-looking Statements

This annual report, including any documents incorporated by reference, contains statements that Repsol YPF believes constitute forward-looking statements within
the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements may include statements regarding the intent, belief or current expectations of Repsol YPF and its
management, including statements with respect to trends affecting Repsol YPF's financial condition, financial ratios, results of operations, business, strategy, geographic concentration, production
volume and reserves, as well as Repsol YPF's plans with respect to capital expenditures, business strategy, geographic concentration, cost savings, investments and dividend payout policies. These
statements are not guarantees of future performance and are subject to material risks, uncertainties, changes and other factors which may be beyond Repsol YPF's control or may be difficult to predict.
Accordingly, Repsol YPF's future financial condition, financial ratios, results of operations, business, strategy, geographic concentration, production volumes, reserves, capital expenditures, cost
savings, investments and dividend payout policies could differ materially from those expressed or implied in any such forward-looking statements. Such factors include, but are not limited to, factors
described in Repsol YPF's filings with the Securities and Exchange Commission and, in particular, those described in Section 1.3 "Key Information about Repsol YPFRisk Factors" and
Section 3 "Operating and Financial Review and Prospects" in this annual report. Repsol YPF does not undertake to publicly update or revise these forward-looking statements even if experience or
future changes make it clear that the projected results or condition expressed or implied therein will not be realized.

Special Notice

Repsol YPF has received comments from the Staff of the SEC relating to our annual report on Form 20-F for the year ended December 31, 2002, and as
of the date of filing of this annual report, the SEC review process is still ongoing.

References

In this annual report, references to "Repsol YPF," "Repsol YPF Group," "Group," "we," "us" and "our" refer to Repsol YPF, S.A. and its consolidated subsidiaries,
unless otherwise specified.

In
this annual report, references to "Consolidated Financial Statements" are to Repsol YPF's audited consolidated balance sheets as of December 31, 2003 and 2002 and Repsol YPF's
audited consolidated statements of income for the years ended December 31, 2003, 2002 and 2001.

In
this annual report, references to "euro" or "E" are to the European Union euro, which is Spain's legal currency, references to "dollars" or "$" or "US$" are to United States dollars,
and references to "pesos" or "Ps." are to Argentine pesos. A "billion" is a thousand million and a "trillion" is a thousand billion.

v

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PART I

1. Key Information about Repsol YPF



The following table presents selected consolidated financial data of Repsol YPF. You should read this table in conjunction with Section 3 "Operating and
Financial Review and Prospects" and the Consolidated Financial Statements included elsewhere in this annual report.

The
consolidated income statement data for each of the years in the three-year period ended December 31, 2003 and the consolidated balance sheet data as of
December 31, 2003 and 2002 set forth below have been derived from, and are qualified in their entirety by reference to, the Consolidated Financial Statements and notes thereto included in this
annual report. The consolidated income statement data for each of the years in the two-year period ended December 31, 2000 and the consolidated balance sheet data as of
December 31, 2001, 2000 and 1999 set forth below have been derived from Repsol YPF's consolidated financial statements, which are not included in this annual report.

|                                   |                                          | Year Ended December 31,                           | 
|---------------------------------- | ---------------------------------------- | ------------------------------------------------- | 
|
|
|Consolidated income statement data |                                          |                                                   | 
|                                   | Amounts in accordance with Spanish GAAP: |                                                   | 
|                                   |                                          | Operating revenues                                | 
|                                   |                                          | Operating income(1)                               | 
|                                   |                                          | Income before income taxes and minority interest  | 
|                                   |                                          | Net income                                        | 
|                                   |                                          | Net income per ADS or share(2)(3)                 | 
|                                   |                                          | Weighted average shares outstanding (millions)(3) | 
|                                   | Amounts in accordance with U.S. GAAP(4): |                                                   | 
|                                   |                                          | Revenues                                          | 
|                                   |                                          | Net income                                        | 
|                                   |                                          | Net income per ADS or share(2)(3)                 | 
|Consolidated balance sheet data    |                                          |                                                   | 
|                                   | Amounts in accordance with Spanish GAAP: |                                                   | 
|                                   |                                          | Property, plant and equipment, net                | 
|                                   |                                          | Total current assets                              | 
|                                   |                                          | Total assets                                      | 
|                                   |                                          | Long-term debt                                    | 
|                                   |                                          | Short-term debt                                   | 
|                                   |                                          | Shareholders' equity                              | 
|                                   |                                          | Capital stock                                     | 
|                                   | Amounts in accordance with U.S. GAAP(4): |                                                   | 
|                                   |                                          | Total assets                                      | 
|                                   |                                          | Long-term debt                                    | 
|                                   |                                          | Shareholders' equity                              | 
|                                   |                                          |                                                   | 

1

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|Other consolidated data |                                          |                                     |  |        |   |        |   |        |   |        |  
|----------------------- | ---------------------------------------- | ----------------------------------- |  | ------ | - | ------ | - | ------ | - | ------ | -
|                        | Amounts in accordance with Spanish GAAP: |                                     |  |        |   |        |   |        |   |        |  
|                        |                                          | Cash flow from operating activities |  | €5,373 |   | €4,470 |   | €5,489 |   | €5,468 |  
|                        |                                          | Cash flow from investing activities |  | (3,633 | ) | (195   | ) | (3,580 | ) | (5,853 | )
|                        |                                          | Cash flow from financing activities |  | (1,688 | ) | (4,358 | ) | (1,992 | ) | 412    |  
|                        |                                          | Dividends per ADS or share(2)(3):   |  | 0.40   |   | 0.31   |   | 0.21   |   | 0.50   |  

In
reading Repsol YPF's financial information provided above, you should be aware of all of the following information:



The following tables set forth, for the periods and dates indicated, information concerning the noon buying rate in New York City as certified for customs
purposes by the Federal Reserve Bank of

2

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New
York buying rate for cable transfers in euros and the peseta equivalent thereof, as the case may be, per US$1.00.

|Year ended December 31,                             |  | Period End |  | Average |  | High   |  | Low   
|--------------------------------------------------- |  | ---------- |  | ------- |  | ------ |  | ------
|
|1999 (pesetas per US$1.00 through January 15, 1999) |  | 143.55     |  | 142.84  |  | 144.26 |  | 140.86
|1999 (January 16, 1999 through December 31, 1999)   |  | 0.99       |  | 0.94    |  | 0.99   |  | 0.86  
|2000                                                |  | 1.07       |  | 1.09    |  | 1.21   |  | 0.97  
|2001                                                |  | 1.12       |  | 1.12    |  | 1.20   |  | 1.05  
|2002                                                |  | 0.95       |  | 1.07    |  | 1.16   |  | 0.95  
|2003                                                |  | 0.79       |  | 0.88    |  | 0.97   |  | 0.79  

|Month                             |  | Period End |  | High |  | Low 
|--------------------------------- |  | ---------- |  | ---- |  | ----
|
|December 2003                     |  | 0.79       |  | 0.84 |  | 0.79
|January 2004                      |  | 0.80       |  | 0.81 |  | 0.78
|February 2004                     |  | 0.80       |  | 0.81 |  | 0.78
|March 2004                        |  | 0.81       |  | 0.83 |  | 0.80
|April 2004                        |  | 0.84       |  | 0.85 |  | 0.81
|May 2004                          |  | 0.82       |  | 0.85 |  | 0.82
|June 2004 (through June 28, 2004) |  | 0.82       |  | 0.83 |  | 0.81

The
"average" column in the first table above represents the average of the noon buying rates on the last day of each month during the relevant period.

On
January 1, 1999, the euro (€) was introduced as a new currency in the following 12 European Union member states: Austria, Belgium, Finland, France, Germany,
Greece, Ireland, Italy, Luxembourg, The Netherlands, Portugal and Spain. Repsol YPF refers to these countries as the participating member states. The respective currencies of the participating member
states, including the Spanish peseta, continued to be non-decimal subdivisions of the euro through March 1, 2002. The Spanish peseta has been irrevocably fixed against the euro at
an exchange rate of Ptas. 166.386 = €1.00. On January 1, 2002, the participating member states officially started to issue new euro-denominated bills and
coins for use in cash transactions. On March 1, 2002, the participating member states withdrew the bills and coins denominated in each of their currencies from circulation, and they are no
longer legal tender for any transactions. Although some states withdrew their currencies prior to March 1, 2002, the Spanish peseta continued to be legal tender in Spain until
February 28, 2002.

Since
January 15, 1999, the Federal Reserve Bank of New York no longer quotes a noon buying rate for the currencies of any of the participating member states, including Spain. The
Noon Buying Rate for the euro on June 28, 2004 was €0.82 = US$1.00.

For
a discussion of Repsol YPF's foreign currency exposure, see Section 9.2 "Quantitative and Qualitative Disclosure About Market RiskForeign Currency Exposure."

On
January 4, 1999, the Madrid Stock Exchange began quoting share prices, including those of Repsol YPF, in euros. Subsequently, dividends paid on shares of Repsol YPF were stated
in euros. Currency fluctuations will affect the dollar equivalent of the euro price of Repsol YPF's shares on the Spanish stock exchanges and, as a result, are likely to affect the market price of the
Repsol YPF American Depositary Shares ("ADSs") on the New York Stock Exchange. Currency fluctuations will also affect the dollar amounts received by holders of Repsol YPF ADSs on conversion by the
depositary of cash dividends paid in euros on the underlying ordinary shares.

3

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World
oil prices have fluctuated widely over the last 10 years and are subject to international supply and demand factors over which Repsol YPF has no control. Political
developments throughout the world (especially in the Middle East), the outcome of meetings of the Organization of the Petroleum Exporting Countries (OPEC), the evolution of stocks of oil and products,
the participation of speculators and hedge funds, as well as significant conflicts, like the war in Iraq, can particularly affect world oil supply and oil prices. In 2003, the average international
price for West Texas Intermediate ("WTI") crude oil price was US$31.06 per barrel, compared to an average of US$22.56 per barrel for the period 1994-2003, with high and low annual averages
of US$31.06 per barrel in 2003 and US$14.39 per barrel in 1998, respectively. Reductions in oil prices negatively affect Repsol YPF's profitability, the valuation of its assets and its plans for
capital investment including projected capital expenditures related to exploration and development activities. A significant reduction of capital investments may negatively affect Repsol YPF's ability
to replace oil reserves.



Natural
gas prices in the various regions in which Repsol YPF operates tend to vary from one another as a result of significantly different supply, demand and regulatory circumstances,
and such prices may be lower than prevailing prices in other regions of the world. In addition, excess supply conditions that exist in some regions cannot be utilized in other regions due to a lack of
infrastructure and difficulties in transporting natural gas. Because of the significance of the overall investment in infrastructures, natural gas prices in regions where we operate are expected to
remain lower than prevailing prices for natural gas produced in regions where there is strong natural gas demand and adequate transportation networks, such as in the United States.



As
at December 31, 2003, approximately 37.7% of Repsol YPF's assets are located in Argentina, corresponding for the most part to exploration and production activities. Also, in
2003, approximately 56.9% of Repsol YPF's operating income originated from activities in Argentina.

Throughout
2003, Argentina began to recover from the profound crisis that began at the end of 2001. The severe devaluation of the peso permitted the expansion of exporting activity and
the decrease of imports, in an international market context of favorable pricing of raw materials. The manufacturing and construction industries drove GDP growth of 8.7% in 2003. As a result of this
recovery, inflation stabilized, at only 3.7% year-on-year in December 2003. In the currency markets, the peso appreciated relative to the U.S. dollar, in the context of
the global downward trend of the U.S. dollar. In the political arena, the rise of President-elect Nestor Kirchner in May 2003 and the consolidation of his position throughout the year led to a
stabilized government which did not exist during the crisis. At the end of 2003, Kirchner's political party, the Justicialismo, maintained a majority in both houses of Congress, and held the majority
of the provincial governships.

With
the improvement in the political and economic condition of the country, the regulatory environment applicable to the energy sector, which was deeply affected by the emergency
measures adopted during the crisis, began to stabilize. However, since March 2004 and, as a consequence of a shortage in the domestic supply of natural gas and continued high international oil
prices, the government has adopted additional measures that modify the regulatory environment. On the one hand, the government has approved an increase in well head gas prices for industries and
electricity generators; on the other hand, it has imposed limits on the export of gas to Chile and has taken additional measures, including imposing limits on the supply of gas to industrial
consumers. The government has increased the export tax for crude oil and LPG from 20% to 25% and from 5% to 20%, respectively, and has reintroduced the export tax for gasoline at 5%. Additionally,
since May 28, 2004 exports of natural gas are subject to customs duties of 20%. These measures could have a

4

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negative
impact on our results of operation in Argentina. As of the date of this annual report, in the view of management, the transmission of relatively high international prices to domestic prices
may be further delayed.

Even
if the growth trends and macroeconomic stability noted in 2003 continue, the energy sector and Repsol YPF will continue to face significant risks of an economic and political
slowdown.

The
main economic risks we face because of our operations in Argentina are the following:





Oil
and gas exploration and production activities are subject to particular economic risks, some of which are beyond the control of Repsol YPF. These activities are subject to
production, equipment and transportation risks, natural hazards and other uncertainties including those relating to the physical characteristics of an oil or natural gas field. The operations of
Repsol YPF may be curtailed, delayed or canceled as a result of weather conditions, mechanical difficulties, shortages or delays in the delivery of equipment and compliance with governmental
requirements. If these risks materialize, Repsol YPF may suffer substantial losses and disruptions to its operations. Drilling may involve unprofitable efforts, not only with respect to dry wells, but
also with respect to wells that are productive but do not produce sufficient net revenues to return a profit after drilling, operating and other costs are taken into account. These activities are also
subject to the payment of royalties and taxation, which tend to be high compared with those payable in respect of other commercial activities.



Oil
companies, including Repsol YPF, must maintain a certain level of undeveloped oil and natural gas reserves to keep their results from exploration and production activities relatively
stable over time. Crude oil and natural gas production blocks are typically auctioned by governmental authorities. Repsol YPF faces intense competition in bidding for such production blocks,
especially those blocks with the most attractive crude oil and natural gas reserves. Such competition may result in Repsol YPF's failure to obtain desirable production blocks or result in Repsol YPF's
acquiring such blocks at a higher price.



The
oil industry is particularly subject to extensive regulation and intervention by governments throughout the world in such matters as the award of exploration and production
interests, the imposition of specific drilling and exploration obligations, restrictions on production, price controls, required divestments of assets and foreign currency controls over the
development and nationalization, expropriation or cancellation of contract rights. Such legislation and regulations cover virtually all aspects of Repsol YPF's activities in each of its three business
segments (upstream, downstream and

5

---



natural
gas and electricity), inside and outside Spain, and may change. In Spain, for example, the government regulates maximum price levels for LPG and natural gas.

In
addition, the terms and conditions of the agreements under which Repsol YPF's oil and gas interests are held generally reflect negotiations with governmental authorities and vary
significantly by country and even by field within a country. These agreements generally take the form of licenses or production sharing agreements. Under license agreements, the license holder
provides financing and bears the risk of the exploration and production activities in exchange for resulting production, if any. Part of the production may have to be sold to the state or the
state-owned oil company. License holders are generally required to pay royalties and income tax. Production sharing agreements generally require the contractor to finance exploration and production
activities in exchange for the recovery of its costs from part of production (cost oil), the remainder of production (profit oil) being shared with the state-owned oil company on an agreed upon basis.

Repsol
YPF has operations in many countries throughout the world, including Iran and Libya. U.S. legislation, such as the Iran and Libya Sanctions Act of 1996, as amended and extended by
the ILSA Extension Act of 2001 (the "Sanctions Act"), may impact Repsol YPF's operations in one or more of these countries. For example, the Sanctions Act requires the President of the United States
to impose two or more of certain enumerated sanctions under certain circumstances on companies which engage in trade with or investment activities in Iran and until April 2004, in Libya. These
sanctions include, among others:



United
Nations sanctions on Libya were lifted in the fall of 2003 and as of April 23, 2004, the Sanctions Act no longer applies to operations, including Repsol YPF's operations,
in Libya.

Repsol
YPF cannot predict changes in U.S. legislation or interpretations of, or the implementation policy of the U.S. government with respect to, U.S. legislation, including the
Sanctions Act.



Repsol
YPF is subject to extensive environmental laws and regulations in almost all the countries in which it operates, which regulate, among other matters affecting Repsol YPF's
operations, environmental quality standards for products, air emissions and climate change, water discharges, remediation of soil pollution and the generation, handling, storage, transportation,
treatment and disposal of waste materials. These laws and regulations have had and will continue to have a substantial impact on Repsol YPF's operations. Repsol YPF's operations are subject to certain
environmental risks that are inherent in the oil and gas industry and which may arise unexpectedly and result in material adverse effects on Repsol YPF's financial position and results of operations.



Substantial
portions of Repsol YPF's hydrocarbons reserves are located in countries outside the EU, certain of which may be politically or economically less stable than EU countries. At
December 31, 2003, 95.4% of Repsol YPF's net proved hydrocarbons reserves were located in Latin America and 4.3% in North Africa and the Middle East. Reserves in developing countries as well as
related production operations may be subject to risks, including increases in taxes and royalties, the establishment of limits on production and export volumes, the compulsory renegotiation of
contracts, the nationalization or denationalization of assets, changes in local government regimes and policies, changes in business customs and practices, payment delays, currency exchange
restrictions and losses and impairment of operations by actions of insurgent groups. See Section 2.2.1 "Information on Repsol YPFOperationsExploration and Production."
In addition, political changes may lead to changes in the business environment in which Repsol YPF operates. Economic downturns, political instability or civil disturbances may disrupt distribution
logistics or limit sales in the markets affected.

6

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Repsol
YPF faces exchange rate risk because the revenues and cash receipts it receives from sales of crude oil, natural gas and refined products are generally denominated in U.S. dollars
or influenced by the U.S. dollar exchange rate, while a significant portion of Repsol YPF's expenses are denominated in the local currency of the countries where it operates, principally the euro and
the Argentine peso. While an increase in the value of the U.S. dollar against these currencies tends to increase Repsol YPF's net income, such an increase would also increase the value of Repsol YPF's
debt as the majority of its debt is denominated in U.S. dollars (either directly or synthetically through currency forward contracts). By contrast, a decrease in the value of the U.S. dollar against
these currencies tends to decrease Repsol YPF's net income and reduce the value of its debt. In addition, Repsol YPF publishes its financial statements in euro by translating assets and liabilities
expressed in currencies other than euro at period-end exchange rates and revenues and expenses expressed in currencies other than the euro at average exchange rates for the period.
Fluctuations in the exchange rates used to translate these currencies into euro could have a material adverse effect on Repsol YPF's business, financial condition and results of operations.



The
petrochemicals industry is subject to wide fluctuations in supply and demand reflecting the cyclical nature of the chemicals market at regional and global levels. These fluctuations
affect prices and profitability for petrochemicals companies, including Repsol YPF. Repsol YPF's petrochemicals business is also subject to extensive governmental regulation and intervention in such
matters as safety and environmental controls.

2. Information on Repsol YPF



Repsol
YPF is a limited liability company (sociedad anónima) duly organized on November 12, 1986 and existing under
the laws of the Kingdom of Spain. The address of Repsol YPF is Paseo de la Castellana 278, 28046 Madrid, Spain and its telephone number is
011-34-91-348-8000.

Repsol
YPF is an integrated oil and gas company engaged in all aspects of the petroleum business, including exploration, development and production of crude oil and natural gas,
transportation of petroleum products, liquefied petroleum gas and natural gas, petroleum refining, production of a wide range of petrochemicals and marketing of petroleum products, petroleum
derivatives, petrochemicals, liquefied petroleum gas and natural gas.

Repsol
YPF began operations in October 1987 as part of a reorganization of the oil and gas businesses then owned by Instituto Nacional de Hidrocarburos, a Spanish government
agency which acted as a holding company of government-owned oil and gas businesses. In April 1997, the Spanish government sold in a global public offering its entire remaining participation in
Repsol YPF. During 1999, and as part of its international growth strategy, Repsol YPF acquired, through a series of acquisitions, YPF, a leading Argentine petroleum company and the former state oil
and gas monopolist in Argentina. Since 1999, Repsol YPF has acquired additional shares of YPF and, as of December 31, 2003, Repsol YPF owned 99.04% of YPF.

On
June 28, 2000, the general meeting of shareholders approved the change of the company's name from Repsol, S.A. to Repsol YPF, S.A.

Through
the acquisition of YPF, Repsol YPF sought to achieve a balance between upstream and downstream operations, position itself as a market leader in Latin America, achieve operating
and

7

---



capital
expenditure synergies and consolidate its business scale and financial strength. As part of its integration strategy, Repsol YPF has been disposing of specific assets which do not correspond
to its core businesses outlined above or to its core geographic areas, which include Spain, Latin America and North Africa.

For
a description of our principal capital expenditures and divestitures see Section 3.8.2. "Operating and Financial Review and ProspectsLiquidity and Capital
ResourcesCapital Investments and Divestitures."

Below
is a simplified organizational chart of Repsol YPF's significant subsidiaries as of December 31, 2003, including their country of incorporation, main activities and Repsol
YPF's ownership interest in those subsidiaries. For a complete list of Repsol YPF's subsidiaries, see Repsol YPF's Consolidated Financial Statements.

CHART



Repsol
YPF engages in all aspects of the petroleum business, including the exploration, development and production of crude oil and natural gas, the transportation of petroleum products,
liquefied petroleum gas (LPG) and natural gas, petroleum refining, petrochemical production and the marketing of petroleum products, petroleum derivatives, petrochemicals, LPG and natural gas. Repsol
YPF organizes its business along the following areas of activities:





8

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Repsol
YPF today has operations in 29 countries, the most significant of which are Spain and Argentina. Repsol YPF has a unified global corporate structure with headquarters in Madrid,
Spain and Buenos Aires, Argentina. Repsol YPF manages its business as a fully integrated organization at both the operational and organizational levels. Key functions such as strategic planning,
control, finance and human resources are centrally coordinated. In contrast, the operations of Repsol YPF are managed individually on a decentralized geographic basis and globally by division in order
to maximize efficiencies and operating synergies.

Repsol
YPF's culture and management model is based on three pillars:



Within
Repsol YPF's working culture, business plans, performance-based contracts and service agreements are adopted after careful discussion with, and consideration of new ideas from,
different corporate bodies, which are typically structured as committees that provide advisory functions in the context of the decision-making process.

In
July 2003, the Board of Directors approved a new organizational structure thereby completing the process begun in September 2002 with the approval of new corporate
governance criteria and the appointment of Ramón Blanco Balín as Chief Operating Officer (COO).

In
the new organizational structure, the Chief Operating Officer, the Corporate Directors (Institutional Affairs and the Assistant to the Chairman, the Chief Financial Officer (CFO),
Human Resources, External Relations, Legal Affairs, Planning and Control and Real State Activities) and the Country Manager for Argentina report directly to the CEO. The Corporate Audit Management,
which is under the Board of Directors' Audit and Control Committee, also reports to the CEO.

The
business lines report directly to the COO. The Executive Vice-Presidency for Exploration and Production has been maintained. The competencies of the
Vice-Presidency for Refining and Marketing are divided into five General Management areas: Refining and Marketing Europe, Refining and Marketing Latin America, Chemicals, LPG and
Trading-transport (RYTTSA). A new Liquid Natural Gas Management area was created.

The
Country Managers also report to the COO, except for Argentina's Country Manager who reports directly to the CEO. The Corporate Management for Shared Services also reports to the COO,
who is also responsible for the coordination activities with Gas Natural SDG.



The
Strategic Plan of Repsol YPF, presented to financial markets in November 2003, anticipates the maintenance and promotion of activities identified as priorities, activities in
respect of which clear

9

---



competitive
advantage exists or activities in which Repsol YPF expects to obtain higher than average yields. The activities on which the management of Repsol YPF will focus in the period
2003-2007 are:



Repsol
YPF's strategy for the period 2003-2007 aims to meet the priority targets of creating value through improving the return on capital employed. In order to fulfill these
profitability targets, Repsol YPF's Strategic Plan for the period is based on four essential pillars:



We
expect that execution of our strategic objectives will contribute to value-creation, which in terms of return on average capital employed (ROACE) will reach 9% and adjusted return on
average capital employed (adjusted ROACE) will reach 14% in fiscal year 2007 under base plan conditions (which conditions include assumptions as to (i) average Brent crude oil prices,
(ii) the euro-U.S. dollar exchange rate, (iii) the applicable effective tax rate, (iv) medium-cycle downstream margins, and (v) current Spanish GAAP).

In
order to achieve the previously announced goals, Repsol YPF's business areas will develop their strategies in accordance with the following guidelines:



10

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Below
are summaries of operating revenues of Repsol YPF by line of business and geographic area:

|                                      |                           | 2003   |        | 2002   |        | 2001   |        | 03 vs. 02 |        | 02 vs. 01 |       
|------------------------------------- | ------------------------- | ------ | ------ | ------ | ------ | ------ | ------ | --------- | ------ | --------- | ------
|
|Operating revenue by business segment |                           |        |        |        |        |        |        |           |        |           |       
|                                      | Exploration & Production  |        | 6,419  |        | 5,580  |        | 7,305  |           | 15.04  | %         | (23.61
|                                      | Refining & Marketing      |        | 32,480 |        | 31,289 |        | 32,491 |           | 3.81   |           | (3.70 
|                                      | Chemicals                 |        | 2,240  |        | 2,109  |        | 2,355  |           | 6.21   |           | (10.45
|                                      | Natural Gas & Electricity |        | 1,486  |        | 3,110  |        | 5,900  |           | (52.22 | )         | (47.29
|                                      | Adjustments & other       |        | (5,419 | )      | (5,598 | )      | (4,398 | )         | 3.20   |           | (27.29
|                                      |                           |        |        |        |        |        |        |           |        |           |       
|                                      |                           | 37,206 |        | 36,490 |        | 43,653 |        | 1.96      |        | (16.41    | )     
|                                      |                           |        |        |        |        |        |        |           |        |           |       

|                                        |                       | 2003   |        | 2002   |        | 2001   |        | 03 vs. 02 |       | 02 vs. 01 |       
|--------------------------------------- | --------------------- | ------ | ------ | ------ | ------ | ------ | ------ | --------- | ----- | --------- | ------
|
|Operating revenue by geographic segment |                       |        |        |        |        |        |        |           |       |           |       
|                                        | Spain                 |        | 24,346 |        | 24,541 |        | 28,313 |           | (0.79 | )%        | (13.32
|                                        | Argentina             |        | 5,940  |        | 5,415  |        | 8,621  |           | 9.69  |           | (37.19
|                                        | Rest of Latin America |        | 4,382  |        | 4,115  |        | 3,501  |           | 6.49  |           | 17.54 
|                                        | Rest of the world     |        | 2,538  |        | 2,419  |        | 3,218  |           | 4.92  |           | (24.83
|                                        |                       |        |        |        |        |        |        |           |       |           |       
|                                        |                       | 37,206 |        | 36,490 |        | 43,653 |        | 1.96      |       | (16.41    | )     
|                                        |                       |        |        |        |        |        |        |           |       |           |       

11

---



Below
is a summary of selected operating data of Repsol YPF:

2003

2002

2001Crude oil net proved reserves(1)Spain

4,974

4,242

6,962Argentina

1,274,343

1,399,601

1,487,696Rest of Latin America

419,638

420,165

378,478Rest of the world

182,776

194,688

421,852Gas net proved reserves(2)Spain





Argentina

8,226,655

9,431,883

10,122,647Rest of Latin America

11,355,159

8,395,829

7,475,622Rest of the world

359,845

378,067

994,294Hydrocarbon net production(3)Spain

1,481

2,647

2,244Argentina

277,423

261,293

262,430Rest of Latin America

105,510

71,522

47,792Rest of the world

28,934

29,644

57,878Refining capacity(4)Spain

740

740

740Argentina

334

334

334Rest of Latin America

160

160

102Crude oil processed(5)Spain

32.4

31.9

32.3Argentina

15.4

15.2

14.5Rest of Latin America

5.6

5.7

4.2Number of service stations(6)Spain

3,611

3,653

3,704Argentina

1,910

1,940

2,018Rest of Latin America

956

906

811Rest of the world

137

130

103Sales of petroleum products(7)(8)Spain

27,861

26,785

25,641Argentina

8,116

8,001

8,550Rest of the world

17,600

15,305

15,491Sales of petrochemical products(7)By region:Spain

1,161

1,257

1,148Argentina

662

539

632Rest of the world

2,184

1,730

1,595By product:Basic

1,058

723

712Derivative

2,949

2,803

2,663LPG sales(7)Spain

1,992

2,030

2,102Argentina

308

342

363Rest of Latin America

809

783

696Rest of the world

84

81

84Natural gas sales(9)Spain

18.87

18.52

16.92Argentina

2.49

2.22

2.26Rest of Latin America

4.67

4.45

3.48Rest of the world

4.32

1.68

1.10


---

12

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During
2003, global economic growth of approximately 3% has set in motion a change in global oil demand, which led to a breakthrough from the climate of stagnation which was present in
the three preceding years.

According
to data provided by Oil Market Intelligence, global refining of oil grew by 2.6 million barrels per day in 2003 relative to the number of barrels refined per day in
2002.

Two
factors play an important role in the ability of major vertically-integrated oil companies to create value: efficient resource management and the price of crude oil. Higher crude oil
prices lead to higher margins, improved results of operations and incentives for further investment, assuming that resource management remains constant.

The
price of crude oil had a positive effect on our results of operations as the price of crude oil grew significantly relative to 2002. The average prices for Brent dated crude oil and
West Texas Intermediate crude oil increased US$3.80 and US$4.90, rising to US$28.83 and US$31.06 per barrel, respectively, compared to 2002.

Consequently,
oil companies with a significant upstream portfolio generally improved their results of operations in 2003. Nevertheless, European oil companies, due to the depreciation of
the dollar throughout 2003 relative to the euro, have suffered in comparison when translating their results of operations into euro and comparing such results against the prior year.

The
global refining market enjoyed exceptionally high margins in the first quarter of 2003, after which, during the following three quarters, margins declined, but concluded in 2003 very
near to average margins experienced over the past 10 years. In any event, margins exceeded the low margins experienced in 2002. As with the case of upstream operations, the refining market in
Europe has been hurt by the significant appreciation of the euro relative to the U.S. dollar.

Average
international margins in the petrochemical industry were at medium-low cycle levels in 2003, slightly higher than those of 2002. In this sense, and in comparison with
2002, basic chemical margins have developed favorably in the first half of 2003. In addition, higher urea and methanol margins, driven by higher natural gas prices in the United States, stand out.

The
natural gas sector, which is generally considered to have the greatest growth opportunities globally, continued to grow in Asia and America. Consequently, the LNG market has
consolidated its global expansion.

Asia
has historically driven the development of LNG markets. In 2000, Japan, Korea and Taiwan represented more than 70% of global LNG consumption. Whilst this figure has decreased in
recent years because of new markets in the United States and the European Union, the trend could shift back towards Asia due to the fact that China and India are new LNG importers. These two countries
will soon see demand exceed their domestic production, and therefore regasification projects are being built in both countries. There are currently four projects in an advanced state of construction
in these two countries.

In
addition to these emerging markets, in North America, LNG demand in the United States is experiencing strong growth due to the increase in natural gas demand to supply new combined
cycle electricity generators and the decline in domestic production both in the United States and Canada. Existing terminals in the United States are currently under expansion, and there are more than
10 projects for new LNG regasification facilities in the United States and Mexico that have filed paperwork with the relevant authorities to obtain the necessary permits for construction.

13

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In
order to meet the growing demand of LNG three new trains began operations in 2003, one in Trinidad and Tobago and two in Malaysia. These trains have increased global liquefaction
capacity to approximately 140 million tonnes per year, an increase of approximately 8% in total capacity. New projects continue to be developed in countries including Australia, Russia, Norway,
Egypt and Trinidad and Tobago. These projects, together with others in Africa and the Middle East, will increase annual global liquefaction capacity by more than 50 million tonnes per year by
2007.



Repsol
YPF's net income for 2003 increased 3.5% to €2,020 million. Cash flow from operating activities was €5,373 million as compared to
€4,470 million in 2002. Net income per share increased from €1.60 in 2002 to €1.65 in 2003.

Operating
income in 2003 was €3,860 million as compared to €3,323 million in 2002. Operating income for 2002 included
€613 million from Gas Natural's 2002 operating income, reflecting 100% of Gas Natural's operating income until May 2002 and 24% thereafter, while operating income for
2003 included €206 million from Gas Natural's 2003 operating income.

The
revaluation of the euro had a 20% effect on the foregoing results year-on-year because Repsol YPF's results are sensitive to the euro/dollar exchange rate.
Instability in the Middle East, the weak dollar, restrictions in OPEC production, and a rise in demand pushed benchmark oil prices to a higher level than the year before. The average price of Brent
was $28.83/bbl in 2003 in comparison with $25.02/bbl in 2002, although, if quoted in euros, the Brent price fell 3.7% from €26.50/bbl in 2002 to €25.52 /bbl in 2003.
Refining margins widened considerably year-on-year to reach $3.19/bbl. Performance in the marketing area was excellent throughout the year. In Spain, sales of light products
posted a record high while in Argentina, there was significant improvement in margins in 2003 although this was partly curtailed by the stability agreement. The average margins for chemicals were at a
lower than mid-cycle level, if better than the year before, and there was improvement in basic petrochemicals margins during the first half of the year and urea and methanol margins
throughout the year. Gas & Power results continued to be strongly affected by the changes in consolidation scope and the remuneration regime in the Spanish gas sector, both established in 2002.

Repsol
YPF's net debt was €5,047 million at December 31, 2003, falling €2,425 million from €7,472 million at
December 31, 2002. See Section 3.8.1 "Operating and Financial Review and ProspectsLiquidity and Capital ResourcesFinancial Condition" for a reconciliation of
net debt to total debt and an explanation as to why Repsol YPF believes "net debt" is a useful figure for investors.

2.2 Operations



Exploration
and Production ("E&P") accounted for approximately 61%, 54% and 52% of Repsol YPF's operating income in 2003, 2002 and 2001, respectively.

E&P
includes the exploration and production of crude oil and natural gas in different parts of the world. Repsol YPF's oil and gas reserves are located in Latin America (Argentina,
Bolivia, Trinidad and Tobago, Venezuela, Brazil, Ecuador and Colombia), North Africa (Libya and Algeria), the Middle East, Indonesia, Spain and the United States.

Repsol
YPF conducts its E&P activities through YPF, Repsol Exploración, Repsol YPF Bolivia and Repsol YPF Brasil.

Repsol
YPF estimates that at December 31, 2003 it had proved net oil and gas reserves of approximately 5,433 million barrels of oil equivalent, a 3.27% increase in
comparison to 5,261 million barrels of oil equivalent at December 31, 2002. Reserves at December 31, 2002 represented a 6.15% decrease from 5,606 million barrels of oil
equivalent at December 31, 2001. The decrease in proved net

14

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oil
and gas reserves as of December 31, 2003 compared to such reserves as of December 31, 2001 was 3.09%. The reserves replacement ratio, excluding acquisitions and sales made during
each respective year, was 25.0% and 69.5% of the annual production in 2003 and 2002, respectively, or 141.7% and 5.5% of the annual production in 2003 and 2002, respectively, including new
acquisitions and sales. The increase in reserves in 2003 in respect to 2002 was mainly due to the acquisition, effective as of January 1, 2003, of an additional 20% interest in BP Repsol YPF
Caribbean Ventures LLC or BPRY, owner of 100% of BP Trinidad and Tobago LLC or BPTT, titleholder of BP's assets in Trinidad and Tobago, and the approval by the Trinidad and Tobago Government of the
construction of the fourth gas liquefaction train at the Atlantic LNG plant, while in 2002 reserves decreased due to the sale of assets in Indonesia. During 2003, Repsol YPF's average net production
was approximately 1,132 thousand barrels of oil equivalent per day compared to 1,000 thousand barrels of oil equivalent per day in 2002.

At
December 31, 2003, Repsol YPF had oil and gas exploration and production interests in 22 countries, through concessions and contractual agreements, either directly or through
its subsidiaries. Repsol YPF acted as operator in 18 of those countries. In March 2004, Repsol YPF, together with the Italian company ENI and Saudi Aramco, signed an agreement with the Ministry
of Oil and Mineral Resources of Saudi Arabia for gas exploration and production in Area "C" after the bid submitted by the consortium was selected as the winner of the auction. This consortium will
jointly operate the block. Because the concession was awarded after the year end, Saudi Arabia is not included among the 22 countries in which Repsol YPF had operations as of December 31, 2003.



Unless
otherwise indicated below, Repsol YPF estimated its proved oil and gas reserves as of December 31, 2003, 2002 and 2001 in accordance with guidelines established by the
Securities and Exchange Commission and accounting principles set by the Financial Accounting Standards Board. These standards require that reserve estimates be prepared under existing economic and
operating conditions with no provision for price and cost escalations except by contractual arrangements.

|                                                                                                       |                              | Total |           | Spain |       | North Africa
and Middle
East |         | Argentina |           | Rest of
Latin
America |         | Far East |         | Rest of the
World
|------------------------------------------------------------------------------------------------------ | ---------------------------- | ----- | --------- | ----- | ----- | ---------------------------- | ------- | --------- | --------- | --------------------- | ------- | -------- | ------- | -----------------
|
|Proved developed and undeveloped net crude oil reserves (including condensate and natural gas liquids) |                              |       |           |       |       |                              |         |           |           |                       |         |          |         |                  
|                                                                                                       | Reserves at Dec. 31, 2001    |       | 2,294,988 |       | 6,962 |                              | 203,964 |           | 1,487,696 |                       | 378,478 |          | 217,848 |                  
|                                                                                                       | Reserves at Dec. 31, 2002(1) |       | 2,018,696 |       | 4,242 |                              | 188,733 |           | 1,399,601 |                       | 420,165 |          | 5,918   |                  
|                                                                                                       | Reserves at Dec. 31, 2003(2) |       | 1,881,731 |       | 4,974 |                              | 177,371 |           | 1,274,343 |                       | 419,638 |          | 5,371   |                  

---

|                                                          |                              | Total |            | Spain |   | North Africa
and Middle
East |         | Argentina |            | Rest of
Latin
America |            | Far East |         | Rest of the
World
|--------------------------------------------------------- | ---------------------------- | ----- | ---------- | ----- | - | ---------------------------- | ------- | --------- | ---------- | --------------------- | ---------- | -------- | ------- | -----------------
|
|Proved developed and undeveloped net natural gas reserves |                              |       |            |       |   |                              |         |           |            |                       |            |          |         |                  
|                                                          | Reserves at Dec. 31, 2001    |       | 18,592,563 |       | 0 |                              | 452,060 |           | 10,122,647 |                       | 7,475,622  |          | 536,816 |                  
|                                                          | Reserves at Dec. 31, 2002(1) |       | 18,205,779 |       | 0 |                              | 323,095 |           | 9,431,883  |                       | 8,395,829  |          | 50,088  |                  
|                                                          | Reserves at Dec. 31, 2003(2) |       | 19,941,659 |       | 0 |                              | 310,584 |           | 8,226,655  |                       | 11,355,159 |          | 44,874  |                  

---

15

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|                                                    |                              | Total |           | Spain |       | North Africa
and Middle
East |         | Argentina |           | Rest of
Latin
America |           | Far East |         | Rest of the
World
|--------------------------------------------------- | ---------------------------- | ----- | --------- | ----- | ----- | ---------------------------- | ------- | --------- | --------- | --------------------- | --------- | -------- | ------- | -----------------
|
|Total proved developed and undeveloped net reserves |                              |       |           |       |       |                              |         |           |           |                       |           |          |         |                  
|                                                    | Reserves at Dec. 31, 2001(1) |       | 5,606,220 |       | 6,962 |                              | 284,474 |           | 3,290,483 |                       | 1,709,844 |          | 313,452 |                  
|                                                    | Reserves at Dec. 31, 2002(2) |       | 5,261,043 |       | 4,242 |                              | 246,275 |           | 3,079,366 |                       | 1,915,415 |          | 14,838  |                  
|                                                    | Reserves at Dec, 31, 2003(3) |       | 5,433,228 |       | 4,974 |                              | 232,684 |           | 2,739,464 |                       | 2,441,928 |          | 13,363  |                  

---

Net
oil and gas proved reserves at December 31, 2003 were 5,433 million barrels of oil equivalent (34.6% petroleum and liquids and 65.4% natural gas), a
3.27% increase compared to net oil and gas proved reserves of 5,261 million barrels of oil equivalent at December 31, 2002. This increase in net oil and gas proved reserves is a result
of:



The
majority of the new reserves were added in Trinidad and Tobago. Approximately 23% of such new reserves were classified as proved developed and approximately 77% were classified as
proved undeveloped. We believe that there are no significant uncertainties related to the development of such reserves given that major infrastructure is currently in place and development costs in
Trinidad and Tobago are relatively low. We expect such additions to produce over an approximately 22 year period, given the existing contracts related to trains 1, 2 and 3, which are currently
in operation, the expected commencement of train 4 at the beginning of 2006 and existing contracts to sell to domestic customers.

16

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The
following table shows Repsol YPF's net daily average production of crude oil and natural gas for 2003, 2002 and 2001.

|                                                                        |                              | 2003                           |     | 2002 |     | 2001
|----------------------------------------------------------------------- | ---------------------------- | ------------------------------ | --- | ---- | --- | ----
|
|Crude oil net production (including condensate and natural gas liquids) |                              |                                |     |      |     |     
|                                                                        | Spain                        |                                | 4   |      | 5   |     
|                                                                        | North Africa and Middle East |                                | 60  |      | 61  |     
|                                                                        | Argentina                    |                                | 432 |      | 438 |     
|                                                                        | Rest of Latin America        |                                | 98  |      | 80  |     
|                                                                        | Rest of the World            |                                |    |      |    |     
|                                                                        |                              |                                |     |      |     |     
|                                                                        |                              | Total crude oil net production |     | 594  |     | 584 
|                                                                        |                              |                                |     |      |     |     

|                           |                              | 2003                             |       | 2002  |       | 2001 
|-------------------------- | ---------------------------- | -------------------------------- | ----- | ----- | ----- | -----
|
|Natural gas net production |                              |                                  |       |       |       |      
|                           | Spain                        |                                  |      |       | 13    |      
|                           | North Africa and Middle East |                                  | 101   |       | 110   |      
|                           | Argentina                    |                                  | 1,842 |       | 1,561 |      
|                           | Rest of Latin America        |                                  | 1,074 |       | 648   |      
|                           | Rest of the World            |                                  | 4     |       | 4     |      
|                           |                              |                                  |       |       |       |      
|                           |                              | Total natural gas net production |       | 3,021 |       | 2,336
|                           |                              |                                  |       |       |       |      

|                                               |  | 2003  |  | 2002  |  | 2001 
|---------------------------------------------- |  | ----- |  | ----- |  | -----
|
|Total crude oil and natural gas net production |  | 1,132 |  | 1,000 |  | 1,015
|                                               |  |       |  |       |  |      

Repsol
YPF's net petroleum production in 2003 was 413.3 million barrels of oil equivalent, a 13.2% increase from 2002. This increase was mainly due to an increase in production in
Trinidad and Tobago,
reflecting the purchase of an additional 20% interest in BPRY and the start of operations of the third liquefaction train at the Atlantic LNG plant, as well as higher gas production in Argentina in
response to increased demand for gas as compared with prior years. Other factors that increased 2003 production, but to a lesser extent, are higher gas production in Bolivia, reflecting an increase in
sales to Brazil, and higher oil production in Libya and Ecuador, all of which more than offset lower production in Dubai caused by natural oil production decline in oilfields in Dubai. Average daily
net crude oil production in 2003 was 594 thousand barrels and average daily net natural gas production was 3,021 million cubic feet.

Crude
oil and natural gas production accounted for approximately 52.5% and 47.5%, respectively, of Repsol YPF's total production in barrels of oil equivalent during 2003. Repsol YPF's
current estimated oil and gas net proved reserves/production ratio is 13.1, based on total net proved reserves as of December 31, 2003 and annual net production for 2003.



Repsol
YPF's strategy is based on exploration and the efficient development of the fields it operates, focusing on regions with great potential and conditions favorable to improving
Repsol YPF's competitive position, primarily Latin America, the Caribbean and North Africa, with expansion to West Africa and the Middle East.

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The tables below show production costs incurred by Repsol YPF and other details of Repsol YPF's production operations in 2003, 2002 and 2001.

|                                                           |                        | 2003  |       | 2002  |     | 2001 
|---------------------------------------------------------- | ---------------------- | ----- | ----- | ----- | --- | -----
|
|Exploration, development and acquisitions (incurred costs) |                        |       |       |       |     |      
|                                                           | Exploration            |       | 266   |       | 193 |      
|                                                           | Development            |       | 892   |       | 961 |      
|                                                           | Acquisitions and other |       | 1,327 | (1)   | 1   |      
|                                                           |                        |       |       |       |     |      
|                                                           |                        | Total |       | 2,485 |     | 1,155
|                                                           |                        |       |       |       |     |      

---

|                                          |                                     | 2003     |         | 2002 |         | 2001
|----------------------------------------- | ----------------------------------- | -------- | ------- | ---- | ------- | ----
|Exploration, development and acquisitions |                                     |          |         |      |         |     
|                                          | Exploratory concession net area(1)  |          | 246,962 |      | 156,926 |     
|                                          | Exploratory drilling tests finished |          | 39      |      | 43      |     
|                                          |                                     | Positive |         | 9    |         | 14  
|                                          | Discoveries and extensions(2)       |          | 191     |      | 138     |     
|                                          | Acquisitions (sales), net(2)        |          | 482     |      | (234    | )   

---

At
December 31, 2003, Repsol YPF had mineral rights with respect to a total of 299 blocks with a net surface area of 289,244 km2 (115 of these blocks were located in
Argentina, with a net surface area of 89,138 km2), consisting of 144 production blocks with a net surface area of 42,282 km2 (85 of which were located in Argentina, with a
net surface area of 24,748 km2) and 155 exploratory blocks with a net surface area of 246,962 km2 (30 of which were located in Argentina, with a net surface area of 64,390
km2).

During
2003, Repsol YPF finished a total of 39 exploratory wells, nine of which were successful. In Argentina 27 exploratory wells were finished, five of which were successful, and in
the rest of the world 12 were finished, four of which were successful. Three exploratory wells were under evaluation at December 31, 2003.

At
the end of 2003, Repsol YPF had 16 exploratory wells in progress, nine of which were located in Argentina and seven in the rest of the world.

The
following are the most significant activities conducted by Repsol YPF in the countries in which Repsol YPF had exploration and production interests in 2003.



At December 31, 2003, Repsol YPF had mineral rights in four blocks. Two of these blocks are production blocks with a net surface area of 581
km2, and the other two are exploratory blocks with a net surface area of 6,772 km2. | During 2003, Repsol YPF obtained 369 km2 of 3D seismic
data, thereby completing the 3D seismic program of 742 km2 in the exploratory block 401d (Berkine basin), operated by Repsol YPF with a 55% interest. Repsol YPF also obtained 943
km2 of 3D seismic data and 743 km

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of
2D seismic data in Block 351c - 352c (Reggane basin), also operated by Repsol YPF with a 45% participation.

On
January 1, 2003, Repsol YPF acquired from Orange Nassau 12.75% of the Repsol YPF-operated block Issouane, increasing its total participation to 59.50%. This
production block includes the Tifernine, TIM and BEQ oilfields. As part of this transaction, Repsol
YPF also acquired Orange Nassau's 21.26% interest in the Casablanca oilfield, as well as its 11.91% interest in the Boquerón oilfield, both of them located in Spain.

In
December 2003, Repsol YPF was awarded a new exploratory concession designated as M'Sari-Akabli in the Fourth Exploratory Round held by Algeria. The area, which encompasses four
blocks (332a, 341a3, 339a1 and 337a1), has some discoveries made by Sonatrach and multiple dry gas prospects. These blocks lie adjacent to block 351c - 352c at Reggane basin, where Repsol YPF
has a 45% interest. The total net surface area is 11,688 km2 over which Repsol YPF is the operator with a 45% participation. The other foreign partners are RWE (30%) and Edison (25%).
The formal granting of the concession was awaiting final publication by the Algerian authorities as of December 31, 2003, and therefore has not been included in Repsol YPF's acreage as of such
date.

No
exploratory wells were drilled in 2003.

Net
petroleum production in Algeria in 2003 was 10.1 million barrels of oil equivalent (an average of 27,535 barrels of oil equivalent per day), mainly from the TFT block
(operated by Repsol YPF in conjunction with Sonatrach and Total Fina Elf) and, to a lesser extent, from the Issaouane block, operated by Repsol YPF. Net oil production was 3.5 million barrels,
including condensates and liquids, and 37.0 billion cubic feet of natural gas. Net proved oil and gas reserves in Algeria at December 31, 2003 were 82.7 million barrels of oil
equivalent.



At December 31, 2003, Repsol YPF had mineral rights in 115 blocks, including 30 exploratory blocks with a net surface area of 64,390 km2, and
85 production blocks located in the Neuquén, San Jorge, Austral, Cuyana and Northwest basin, with a net surface area of 24,748 km2.

Net
petroleum production in Argentina in 2003 was 277.4 million barrels of oil equivalent (an average of 760,063 barrels of oil equivalent per day). Net crude oil production was
157.7 million barrels, including condensates and liquids, and 672.4 billion cubic feet of natural gas. Net petroleum production in Argentina broken down by area was, on average:
Neuquén, 500,406 barrels of oil equivalent per day; San Jorge and Austral, 161,451 barrels of oil equivalent per day; Cuyana, 38,066 barrels of oil equivalent per day and Northwest,
60,140 barrels of oil equivalent per day. Net proved oil and gas reserves in Argentina at December 31, 2003 were 2,739 million barrels of oil equivalent.

Compared
to 2002, net petroleum production increased by 10.4% in Neuquén and by 2.7% in the Northwest basin, and decreased by 8.9% in Cuyana and by 0.4% in San Jorge and
Austral.

During
2003, a total of 27 exploratory wells were finished, five of which were successful. During 2003, Repsol YPF made two discoveries in the Neuquén basin with the
exploratory wells Loma Alta xp-9, in block Valle del Río Grande, and with Cerro Bandera xp-164, in block Cerro Bandera. The other three discoveries were made
with the exploratory wells Estancia Saraí Oeste x-2 (block Los Perales-Las Mesetas) and Estancia La Mariposa Este x-1 (block CGSJ-8),
both in the San Jorge Gulf basin, and with the well Zampal Oeste x-3 (block Zampal Oeste in the Cuyana basin).

In
August 2003, Repsol YPF reached record production levels of 47 million cubic meters of gas per day in the Loma La Lata gasfield in Neuquén. Four large gas
pipelines originate at Loma La Lata (Neuba I and II, Centro Oeste and Gasoducto del Pacífico) which meet internal demand and provides

19

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for
the exportation of gas to Chile. Additional investments in infrastructure in this area have permitted the development of petrochemical projects like the Methanol Plant and Mega.

During
September 2003, in both the Neuquén and the Cuyana basins, Repsol YPF achieved record activity levels with 64 drilling, completion and other specific task
equipment in operation. Sixty-eight percent of this equipment is in the Neuquén basin.

In
July 2003, Repsol YPF obtained an exploration permit for block Bandurria. This block was awarded through public bidding and has a total surface area of 931 km2
located in the center of the Neuquén province. Repsol YPF is the operator with a 37.5% participation. The other partners are Wintershall Energía S.A. (37.5%) and Pan
American Energy, LLC (25%). Exploration activity started with the acquisition, during 2003, of 1,237 km2 of 3D seismic data. The first exploratory well is expected to be drilled in 2005.

In
2003, the Secretariat of Energy of Argentina granted use of the CAM-1 exploratory block in the Austral basin to the consortium Repsol YPF (50%) and Sipetrol (50%). This
block has a total surface area of 11,919 km2.

In
February 2003, Repsol YPF officially inaugurated the Compressing Station of the Primary Separation Unit Number 9 as well as the environmental facilities located at well NQ
LLL-145 in the Loma La Lata oilfield, in the Neuquén basin. This new compressing station was incorporated into eleven other stations that commenced operations during 2001
and 2002 at this area, reaching an installed capacity of about 66,000 horse power, making Loma La Lata the field with the largest installed capacity in Argentina. The compressing unit increases the
pressure of the natural gas extracted from the wells to the level required for its transportation to the main gas pipelines and final consumption centers.

In
March 2003, the LPG plant at El Portón-Buta Ranquil, in the Neuquén basin began operations. The project aims to remove gas liquids,
LPG and gasoline from the associated gas from the El Portón and Chihuido de La Salina gas fields through an LPG plant, with subsequent reinjection of dry gas back into the fields to
reduce pressure drops, thereby maintaining liquid recovery rates. Over the life of the project, LPG, crude oil, condensates and gasoline from high gas-oil ratio wells represent reserves of
40 million barrels. This plant currently processes approximately 3.6 million cubic meters of gas per day, representing 103% of the plant's nominal gas processing capacity, and produces
4,800 barrels of LPG per day, and 1,100 barrels of gasoline per day.

At
the Rincón de los Sauces field, work is being undertaken to mitigate the oil field's decline, observed halfway through 1999. Projects undertaken during 2003 include:
the workover of water-injection wells, the installation of new electrical submergible pumps and the increase in capacity of some of the existing pumps, the drilling of in-fill wells, the
installation of a new direct connection with the national electrical network (to provide electricity to the fields to ensure that Repsol YPF is not last to access the network and avoids any problems
due to blackouts and the actualization of simulation models). During the last months of 2003, production at the CHSN (Chihuido de la Sierra Negra) field, the main production area, indicated that the
decline is slowing.

The
main actions Repsol YPF undertakes to reduce natural depletion in the Gulf of San Jorge Basin are aimed at improving the recovery factor by drilling in fill and extension wells.
Among these actions are the following: Drill 600 (one of the most important projects, with the perforation of approximately 200 wells per year until 2003 and which, due to the good productions results
that were achieved since the second quarter of 2001, will continue at a similar pace), Los Perales-Las Mesetas, La Margarita, Trébol and a new project named Drill 150 in
block Manantiales Behr. Repsol YPF continued to extend secondary recovery methods to new sectors, as well as through the incorporation of new reserves from low risk exploration and new extensions.
Production levels are directly related to the number of active wells. Repsol YPF currently has 11 drilling rigs in the area.

20

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At December 31, 2003, Repsol YPF had mineral rights in one exploratory block in Kazakhstan (Baiganinsk), operated by Repsol YPF, with a net surface area of
3,025 km2 and one exploratory block in Azerbaijan (Kurdashi) with a net surface of 28km2.

By
the end of 2003, after drilling two unsuccessful exploratory wells in 2002 and upon completion of its exploratory commitments, Repsol YPF and its other partners decided not to move
forward with the
second exploratory stage in the block Baiganinsk in Kazakhstan. The relinquishment of the block will take place during the first months of 2004. The government of Azerbaijan authorized the
relinquishment of block Kurdashi in September 2003.



At December 31, 2003, Repsol YPF had mineral rights in 35 blocks, consisting of 10 exploratory blocks with a net surface area of 10,192 km2,
and 25 production blocks with a net surface area of 1,974 km2.

Net
petroleum production in Bolivia was 26.7 million barrels of oil equivalent (an average of 73,197 barrels of oil equivalent per day), mainly from fields operated by Andina and
the Mamore block. Net crude oil production was 7.8 million barrels, including condensates and liquids, and 106.2 billion cubic feet of natural gas. Net proved oil and gas reserves in
Bolivia at December 31, 2003 were 1,262 million barrels of oil equivalent. Net proved reserves allocated to Andina are 1,213 million barrels of oil equivalent.

During
2003, Repsol YPF finished three exploratory wells, one of them, the Surubí Noroeste x-1 in block Mamoré, was finished during the third
quarter and produced positive results.

Repsol
YPF acquired BHP Billiton's 50% interest in block Mamoré, effective as of October 1, 2003. With this acquisition, which was approved by the Bolivian
authorities in February 2004, Repsol YPF acquired 100% ownership of this block. Given the date the Bolivian authorities approved the transaction, the reserves corresponding to this acquisition
will be included in the movements of reserves in the first quarter of 2004.

During
2003, Repsol YPF undertook the necessary investments to start early production at the Margarita oil field (block Caipipendi), expected to begin during the second quarter of 2004.
The consortium consists of Repsol YPF (37.5%), as operator, BG (37.5%) and Pan American Energy (25%).

The
horizontal side track MGR-X1STH was drilled in 2003 to test productivity of the horizontal wells and evaluate the optimal number of wells for the Margarita field
development project. Work on this well commenced in early January 2003, and was successfully completed in May 2003.

Together
with BG Group and BP, Repsol YPF has undertaken preliminary studies to establish the technical and commercial alternatives, as well as the environmental and social impact, of
the project for
the production and sale of gas to be supplied from the Margarita field. The preliminary project execution phase, which includes economic, commercial, environmental requirements and pipeline route
optimization aspects, has been finalized.

In
April 2003, the Transierra gas pipeline, on which construction began in 2002, commenced operations between Yacuiba and Río Grande. The pipeline is intended
primarily to connect the gas produced on the San Alberto and San Antonio fields, where important discoveries have been made, with the Brazilian market. Andina (controlled by Repsol YPF), Petrobras and
TotalFinaElf hold 50%, 35% and 15% interests, respectively, in these fields, which are operated by Petrobras. The new gas pipeline has been constructed by Transierra S.A., a company owned by the
partners in the San Alberto and San Antonio fields, and whose main asset is the gas pipeline (GASYRG). The pipeline began

21

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transporting
natural gas from block San Antonio (Sábalo Field) on April 18, 2003, transporting 2.5 million cubic meters per day. Current capacity, at the beginning of
2004, is 17 million cubic meters per day. During the fourth quarter of 2003, the pipeline transported approximately 9.1 million cubic meters per day, which resulted in an average of
7.2 million cubic meters per day in 2003.

While
the Bolivian Congress is discussing potential amendments to the laws applicable to the hydrocarbons, the Bolivian government has called a referendum for July 18, 2004 that
will consist of five questions for Bolivian voters in relation to hydrocarbon activity in the country. Although the proposals for amendments to the applicable legislation involve certain key aspects
of the regulatory environment applicable to the sector, it is not possible to determine what the final results of this referendum will be and therefore we are currently unable to assess the potential
impact of the referendum or any potential amendments to our operations in Bolivia.



At December 31, 2003, Repsol YPF had mineral rights in seven blocks located offshore, including six exploratory blocks with a net surface area of 3,094
km2, and one production block with a net surface area of 22 km2. Net proved reserves in Brazil at December 31, 2003 were approximately 53 million barrels of
oil equivalent.

In
2003, Repsol YPF abandoned, upon completion of its exploratory commitments, the BES-3 block in the Espirito Santo basin. During 2003, two exploratory wells were finished
with negative results.

Repsol
YPF has a 10% stake in the Albacora Leste Field which is currently in development. The development project is on schedule with respect to production and injection drilling wells
and the construction of production facilities and FPSO. During 2003, eight developmental horizontal wells were drilled, and five producer wells and one injector well were completed. The drilling
program is expected to be completed by 2005.

Production
at Albacora Leste is expected to commence at the beginning of 2005. Total production is currently estimated at 120,000 barrels of oil equivalent per day by the end of 2005,
and currently estimated production for 2007 and 2008 is 180,000 barrels of oil equivalent per day (100%). Net proved reserves at December 31, 2003 were 53.5 million barrels of oil
equivalent.

During
2003, 6,596 kilometers of 2D seismic data were acquired, as well as 1,621 km2 of 3D seismic data.



At December 31, 2003, Repsol YPF had mineral rights in five blocks, consisting of four exploratory blocks with a net surface area of 1,923
km2, and one production block (Cravo Norte) with a net surface area of 17 km2.

Net
petroleum production in Colombia in 2003 was 1.7 million barrels of crude oil (an average of 4,756 barrels of crude oil per day), at block Cravo Norte. Net proved reserves in
Colombia at December 31, 2003 were 6.1 million barrels of crude oil. No exploratory wells were finished in 2003.

At
the end of 2003, preliminary work was conducted to undertake an extensive production test in the Capachos-1 field (100% Repsol YPF), to begin in 2004, in order to evaluate
the discovery made in 2002. The 2D seismic acquisition program covering 100 km (40 km in 2003 and 60 km in 2002) has been completed and analysis of the program's results is in progress.

In
2003, 150 km of 2D seismic data were acquired in the San Miguel block, 100% owned by Repsol YPF.

22

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During
the fourth quarter of 2003, Repsol YPF acquired 50% of the Catleya exploratory block in Colombia with a total surface area of 909 km2. Ecopetrol holds the other 50%
participating interest and operates the field.



At December 31, 2003, Repsol YPF had mineral rights in six exploratory blocks, with a net surface area of 10,702 km2. During 2003, the
analysis of the existing seismic data was completed and several prospects were identified. The first well on the Yamagua prospect will be drilled in 2004 in a water depth of 1.650 meters over an
estimated period of two months.

No
exploratory wells were drilled in 2003.



At December 31, 2003, Repsol YPF had mineral rights in one production block with a net surface area of 454 km2. Net crude oil production was
11.2 million barrels (an average of 30,778 barrels of crude oil per day). Net proved reserves in Dubai at December 31, 2003 were 55.2 million barrels of crude oil. No exploratory
wells were drilled in 2003.

A
miscible gas injection pilot project is in progress in the Fateh oil field using horizontal wells. Alternate injection cycles of water and gas commenced in 2000 and were completed in
2003. At the beginning of 2003, the first oil response was measured in the two pilot-producing wells and the positive response continued throughout 2003. Repsol YPF continues to evaluate the economic
feasibility of a scale-up of the pilot project.



At December 31, 2003, Repsol YPF had mineral rights in three production blocks, with a net surface area of 1,225 km2. Net petroleum
production in Ecuador was 3.7 million barrels of crude oil (an average
of 10,002 barrels of crude oil per day), most of it from block 16. Net proved reserves in Ecuador at December 31, 2003, were 46.3 million barrels of crude oil. No exploratory wells were
drilled in 2003.

Repsol
YPF has entered into a fifteen-year "ship or pay" agreement under which it may transport 100,000 barrels of crude oil per day through the heavy crude oil pipeline
(OCP) from September 2003 to September 2018 (15 years), which include the estimated crude oil production from blocks 16 and 14.

Expansion
of production facilities in block 16 was completed promptly in 2003 to meet the OCP schedule. Reservoir performance is under re-evaluation. A new program to bring
the production to 75,000 bpd has been developed and the proposal to the government to extend the contract to 2021 is under discussion. Repsol YPF is currently negotiating the expiration dates of
mineral rights it holds in production blocks in Ecuador to align them with the expiration dates under transport agreements. This will allow Repsol YPF to adjust its crude oil production to the
contracted crude oil transportation capacity (see Section 3.6 "Extraordinary Income (Loss)Provision for other contingencies").



During the fourth quarter of 2003, Repsol YPF acquired from Vanco a 25% participating interest in the offshore K exploratory block in Rio Muni in the Guinea Gulf,
with a total surface area of 4,475 km2. This block lies adjacent to Block G of Amerada Hess where commercial discoveries have been made during the last two years.

23

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At December 31, 2003, Repsol YPF had mineral rights in one exploratory block located offshore, with a net surface area of 8,843 km2. No
exploratory wells were drilled in 2003.



At December 31, 2003, Repsol YPF had mineral rights in one production block with a net surface area of 245 km2.

Total
net petroleum production in 2003 in Indonesia was 0.2 million barrels of oil equivalent (an average of 396 barrels of oil equivalent per day). Net natural gas production was
0.8 billion cubic feet. Net proved reserves at December 31, 2003 were 13.4 million barrels of oil equivalent. During 2003, no exploratory wells were drilled.

Effective
as of January 1, 2002, Repsol YPF sold to CNOOC Ltd. its interest in the South East Sumatra, Offshore North West Java (ONWJ), Poleng, Offshore West Madura and
Blora blocks, in Indonesia, for €671 million, representing capital gains of approximately €49.4 million. The transaction encompasses interests with a net
production of approximately 70,300 barrels per day, of which 79.2% is liquids and crude oil and 20.8% is gas, and net proved reserves of 300.0 million barrels of oil equivalent as of the end of
2001. Repsol YPF was the operator of the South East Sumatra Block.



At December 31, 2003, Repsol YPF had mineral rights in one exploratory block with a net surface of 792 km2 located in the foreland folded
area of the Zagros range in Iran.



At December 31, 2003, Repsol YPF had mineral rights in 17 blocks, consisting of 15 exploratory blocks with a net surface area of 65,517 km2,
and two production blocks with a net surface area of 1,413 km2.

Net
crude oil production in Libya in 2003, which was affected by the quotas assigned to it by OPEC, was 7.4 million barrels (an average of 20,244 barrels of crude oil per day),
principally from block NC-115 (El-Sharara field). Net proved reserves in Libya at December 31, 2003 were 94.8 million barrels of crude oil.

In
2003, two positive exploratory wells were finished. These two discoveries took place during the third quarter of 2003 in Block NC-115 with the exploratory wells O1 and N2
in the Murzuq basin. O1-NC115, which found a column of hydrocarbons larger than originally expected, increases the chances of similar structures being found in the totality of Block
NC-115.

In
2003, 2,361 km of 2D seismic data and 857 km2 of 3D seismic were recorded.

In
May 2003, Repsol YPF signed a contract with the Libyan National Oil Company (NOC) for the exploration and, if successful, commencement of production of six blocks in Libya.
Repsol YPF will act as the operator with a 60% stake and OMV will hold the remaining 40%. With the award of the concession for these exploration blocks, Repsol YPF has consolidated its position in the
Murzuq Basin and has started exploration activities in the Sirte Basin. The concession includes the M-1 block, currently designated as NC-200, in the Murzuq Basin, blocks O9
and O10 in the Sirte Offshore Basin, block S36 in the Sirte Basin, and blocks K1 and K3 in the Kufra Basin. The total surface area of these blocks is 78,474 km2. The contract
contemplates the drilling of 12 exploration wells and the acquisition of 6,500 km of seismic data over the next six years, and involves an estimated initial investment of approximately
US$90 million. The NC-200 block covers a total surface area of 7,900 km2 and is estimated by the industry to have the highest potential of all the blocks tendered.
This block lies

24

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adjacent
to another block operated by Repsol YPF, the NC-115 block, on which the giant El-Sharara field is located and which has a total production of 200,000 barrels per day.

In
August 2003, Repsol YPF obtained NOC approval to commence the development of field D in block NC-186 in the Murzuq basin, which is operated by Repsol YPF. The field
has net proved reserves estimated as of December 31, 2003 of 6.7 million barrels and is expected to be in production in the third quarter of 2004. The development plan authorizes a
production plateau of 35,000 barrels per day.

In
October 2003, Repsol YPF started production in field A in block NC-186, three months ahead of the schedule provided for in the NOC approved development plan in
August 2002. Field A has net proved reserves estimated as of December 31, 2003 of 6.5 million barrels, and is expected to reach a production plateau of 40,000 barrels per day.
Production from fields A and D will be connected with the facilities at El-Sharara, through an oil pipeline 31 kilometers long, and will be transported from there by an oil pipeline to the
Zawia port in the Mediterranean Sea.

In
December 2003, Repsol YPF, Woodside Energy Ltd. (Australia) and Hellenic Petroleum, S.A. (Greece) entered into a new exploration and production agreement with NOC. The
agreement covers six exploratory blocks, five of them in the terrestrial basin of Sirte (S16, S42, S11, S64 and S50) and one in the Murzuq basin (M15) with a total surface area of 20,129
km2. The agreement also covers a viability study for the development of Atchan Field, with a total additional surface of 1,539 km2 in the Murzuq basin, to be undertaken
during the next three years. Repsol YPF has a participating interest of 35% in the agreement, while Woodside, which acts as operator, has a 45% interest, and Hellenic Petroleum owns the remaining 20%.

The
three companies have agreed to work together to market the potential gas discoveries in the area covered by the agreement, which has a term of duration of 30 years, and an
initial six-year exploration phase that includes a commitment to undertake works such as geological studies, acquisition of seismic data and thirteen exploratory wells over a
six-year period.



During the second half of 2003, Repsol YPF was awarded 100% of three off-shore exploratory blocks: Tanger-Larache 1, 2 and 3. The three blocks have a
total surface area of 5,500 km2. These blocks are located in the off-shore area of the Rharb basin and are promising with respect to the potential gas discoveries.



In October 2003, Repsol YPF was awarded a Services Contract for the development and production of block Reynosa-Monterrey in the Burgos basin (northeast of
Mexico). The agreement was awarded in the first international bidding process established by the Mexican national oil company PEMEX, to participate in the development and production of gas fields in
Mexico.

Block
Reynosa-Monterrey is located in the northeast of Mexico, on the border with the United States, south of Río Grande. It has a total surface area of 3,538
km2, and consists of sixteen gas fields already in production.

Repsol
YPF seeks to substantially increase production through development instruments and currently expects to invest US$170 million in this block during the next three years.

Repsol
YPF expects to acquire and process 700 km2 of 3D seismic data, starting in the first quarter of 2004, and to drill eight new development wells. Repsol YPF estimates
that this investment will be reflected in an increase in gas production by 2005. According to the projected schedule, Repsol YPF expects to increase five-fold the current production of
400 thousand cubic meters per day up to approximately 2 million cubic meters per day by 2007.

25

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Pursuant
to this agreement, Repsol YPF has become the first international company able to participate in development and production activities in Mexico.



At December 31, 2003, Repsol YPF had mineral rights in five exploratory blocks with a net surface area of 38,703 km2. No exploratory wells
were drilled in 2003.

In
mid-2003, Repsol YPF was awarded the concession for Block 57, located in the central jungle of Peru in the Ucayali-Madre de Dios basin, adjacent to Block 88, on which the
Camisea
field, which produces gas and condensates, is located. Repsol YPF's current participation in Block 57, with a total surface area of 6,111 km2, is 76.15%.

In
2003, Repsol YPF was awarded a 76.15% interest in Block 90. Burlington owns the remaining 23.85%. Block 90 is located in the Ucayali-Madre de Dios basin, with a total surface area of
8,807 km2. This new block includes the more promising areas of former blocks 34 and 35 (in 2003, Repsol YPF abandoned both blocks after fulfilling its exploratory commitments). The
commitment for the exploratory period in Block 90 is the acquisition of 170 km of 2D seismic data.

Repsol
YPF was also awarded Block TEA 80 (Repsol YPF 76.15%, Burlington 23.85%), in the Ucayali basin. This block has a total surface area of 21,131 km2 and is currently
being evaluated for the purpose of entering into an exploration agreement in 2004.



In March 2004, Repsol YPF, together with the Italian company ENI and Saudi Aramco, signed an agreement with the Ministry of Oil and Mineral Resources of
Saudi Arabia for gas exploration and production in Area "C", after the bid submitted by the consortium was selected as the winner of the auction.

This
consortium will jointly operate the block in line with the following participations: ENI, with 50%, Repsol YPF, with 30% and Saudi Aramco, with 20%. The consortium will develop a
broad exploration program in a 50,000 km2 area that has been practically unexplored.

If
commercially-viable gas discoveries are made, the gas produced will be destined for Saudi Arabia's internal market for use at petrochemical plants and power generation and
desalination plants.

Repsol
YPF regards the award of this concession as an important step in its strategy of increasing its participation in exploration and production projects in the Middle East and
particularly in Saudi Arabia.



In the Marine Exploratory Round, held during the third quarter of 2003, Repsol YPF was awarded 100% of two off-shore exploratory blocks: Block
SL-6 with a total surface area of 4,635 km2 and Block SL-7 with a total surface area of 5,864 km2.



At December 31, 2003, Repsol YPF had mineral rights in 37 blocks, consisting of 25 exploratory blocks, with a net surface area of 13,148 km2,
and 12 production blocks, with a net surface area of 1,041 km2.

Net
petroleum production in Spain in 2003 was 1.5 million barrels of crude oil (an average of 4,057 barrels of crude oil per day) from Repsol YPF facilities in Casablanca
(Mediterranean Sea) and Gaviota (Cantabrian Sea). Net proved reserves in Spain at December 31, 2003 were 5.0 million barrels of crude oil.

26

---



In
2003, Repsol YPF completed two unsuccessful exploratory wells.

Effective
as of January 1, 2003, Repsol YPF acquired from Orange Nassau, as part of the same agreement under which it acquired 12.75% of block Issaouane in Algeria, 21.26% of the
Casablanca field and 11.91% of the Boquerón field. Repsol YPF's participating interest in these fields increased to 68.67% in Casablanca and 61.95% in Boquerón.

In
the Canary Islands, east of the Fuerteventura Island, after the granting in January 2002 of the administrative approvals required for the exploration of blocks Canarias 1
through 9, the acquisition campaign of 3,249 km2 of 3D seismic data was completed in 2003. The data obtained is currently being processed and there are plans to commence drilling the
first two deep-water wells (1,000 - 1,500 m) by the second half of 2004. Repsol YPF's participation in the project is 50%, and it is the operator in the
nine blocks. The Australian company Woodside (30%) and the German company RWE DEA (20%) are also involved in this project. Woodside announced significant oil and gas discoveries off the coast of
Mauritania, geologically similar to the area explored off the Canary Islands.

Two
new research permits were awarded (Marismas Marino North and South) in August 2003 for an area next to the offshore Poseidón field (Repsol YPF) and the Marismas
onshore fields (Petroleum Oil & Gas, formerly LOCS). Repsol YPF has a 40% stake.

During
the first quarter of 2003, Repsol YPF was awarded 100% of five exploratory blocks in the Cantabrian Sea (Ballena 1 through 5). The five blocks have a total surface area of 4,789
km2. Also during the first quarter of 2003, Repsol YPF added blocks Murcia A, Murcia B and Sierra Sagra to its acreage. These blocks combined have a total surface area of 1,687
km2.

Repsol
YPF is in negotiations with the Spanish Ministry of Economy regarding the expansion of the present capacity of the underground storage of natural gas of Gaviota (offshore
Cantabrian Sea). It is hoped that the project will double its existing storage capacity. The first engineering projects will be launched in 2004. It is expected that the expanded facility will be
fully operational by 2006-2007.



At December 31, 2003, Repsol YPF had mineral rights in one production block located offshore, and 30% of the gas and liquids reserves of BP Trinidad and
Tobago LLC ("BPTT"), with a combined net surface area of 1,124 km2.

Net
petroleum production in Trinidad and Tobago was 39.2 million barrels of oil equivalent (an average of 107,389 barrels of oil equivalent per day), all from fields operated by
BP. Net crude oil production was 7.7 million barrels of liquids, and 176.6 billion cubic feet of natural gas. Net proved reserves in Trinidad and Tobago at December 31, 2003 were
840.6 million barrels of oil equivalent.

During
2003, no exploratory wells were drilled.

Repsol
YPF exercised, effective as of January 1, 2003, the option to purchase an additional 20% interest in BPRY (BP Repsol YPF Caribbean Ventures LLC), owner of 100% of BPTT (BP
Trinidad y Tobago LLC), titleholder of BP's assets in Trinidad and Tobago. The purchase increased Repsol YPF's participation in these assets to 30% and also resulted in a three-fold
increase in Repsol YPF's production and reserves in this country, placing its proved net reserves, at the beginning of 2003, at 709 million barrels of oil equivalent.

At
the end of April 2003, the third liquefaction train at the Atlantic LNG plant started operations two months ahead of schedule, with the first delivery in May 2003. The
train has a production capacity of 4.3 billion cubic meters of gas per year, equal to 18% of the annual gas consumption in Spain. This level of production is similar to that of train 2, which
started operations in August 2002, and where Repsol YPF has, as in the case of train 3, a 25% interest. With the start-up of train 3, Atlantic LNG's total LNG production capacity
has been increased to 13 billion cubic meters per year.

27

---



In
June 2003, the Trinidad and Tobago Government approved the construction of a fourth liquefaction train at the Atlantic LNG plant. Train 4 has been designed for an annual
production of 7 billion cubic meters, making it one of the largest facilities of its kind in the world. This project includes the construction of a second harbor and a fourth LNG storage tank.
Total investments are expected to reach US$1,200 million and operations are expected to commence during the first half of 2006. This fourth train will increase Atlantic LNG's production
capacity up to approximately 20 billion cubic meters per year and is expected to sustain Trinidad and Tobago's position as the first supplier of liquefied natural gas to the markets of the
Atlantic basin. Approval of construction of train 4 has increased Repsol YPF's net proved reserves by 185 million barrels of oil equivalent.

In
November 2003, Repsol YPF and Shell signed a contract to supply LNG from Trinidad and Tobago to Cove Point. See Section 2.2.4.1 "Natural
GasTransport of LNGUSA" below.



At December 31, 2003, Repsol YPF had mineral rights in 41 exploratory blocks, with a net surface area of 751 km2.

Net
petroleum production in the United States in 2003 was 0.1 million barrels of oil equivalent. Net proved oil and gas reserves at December 31, 2003 were
0.8 million barrels of oil equivalent.

Repsol
YPF finished one successful exploratory well in 2003 (Neptune 5).

Repsol
YPF acquired in mid-2003 from BHP Billiton a 15% participating interest in the Neptune project in the Atwater Valley sector in the Gulf of Mexico. Neptune consists of
five
exploration blocks with an average depth of 1,900 meters, and is located in the Mississippi Fan Foldbelt, 210 km off the coast of Louisiana, bordering the northeast of the Mad Dog and Atlantis fields.
The Neptune consortium consists of Repsol YPF (15%), BHP Billiton (35%) as operator, Marathon Oil Company (30%) and Woodside Petroleum Ltd. (20%). In August 2003, the consortium
discovered an important hydrocarbon column with the well Neptune 5, located in deep waters in the central region of the Gulf of Mexico. This well, located in the Atwater Valley 574 block, reached a
depth of 5,830 meters, and resulted in a discovery of a Net Oil Pay higher than originally expected of more than 150 meters. The crude quality is of similar characteristics to those of the surrounding
fields of Mad Dog and Atlantis, both currently in the development phase.

In
2004, there are plans to drill two new wells in the structure and thereafter, to conduct appraisal drillings, and subsequently, to design a development plant.

In
March 2003, Repsol YPF was awarded the concession during the exploration round 185 of nine off-shore exploratory blocks in the area of Green Canyon. In
August 2003, during the exploratory round 187, Repsol YPF was awarded another 10 off-shore exploratory blocks in the area of Alaminos Canyon. All blocks are located in the Gulf of
Mexico.



At December 31, 2003, Repsol YPF had mineral rights in seven blocks, consisting of one exploratory block, with a net surface area of 1,970
km2, and six production blocks, with a net surface area of 5,902 km2.

Net
petroleum production in Venezuela in 2003 was 34.2 million barrels of oil equivalent (an average of 93,724 barrels of oil equivalent per day), mainly from Quiriquire, Mene
Grande and Quiamare-La Ceiba, all of which are operated by Repsol YPF. Net crude oil production was 14.8 million barrels, including condensates and liquids, and 109.1 billion
cubic feet of natural gas. Net proved reserves of natural gas and liquids in Venezuela at December 31, 2003 were 233.5 million barrels of oil equivalent.

No
exploratory wells were drilled in 2003.

28

---



Repsol
YPF continues to negotiate with Petróleos de Venezuela, S.A. ("PDVSA"), the Venezuelan state-owned company, regarding the possibility of increasing the volume of
gas deliveries from Quiriquire to 9.0 million cubic meters per day. In 2001, Repsol YPF and PDVSA signed a gas sale agreement relating to the Quiriquire block. Repsol YPF began gas production
from the Quiriquire block in September 2001. The project was completed in the first quarter of 2002. Average net gas production in Quiriquire in 2003 was 8.4 million cubic meters per
day, with net oil and gas production of 69,880 barrels of oil equivalent per day.

Effective
as of January 1, 2003, Repsol YPF acquired Tecpetrol's 25% participation interest in block Quiamare La Ceiba. Repsol YPF's participation in this block, where it also
acts as the operator, has increased to 75%, while Exxon Mobil holds the remaining 25%. With this acquisition, Repsol YPF increased production in Venezuela by 3,900 barrels per day and proved reserves
by 8.2 million barrels of oil equivalent.

Repsol
YPF's production in Venezuela was relatively unaffected during the first months of the 2003 by the general strike that took place at the end of 2002 and the first quarter of 2003.
By the middle of February, production had returned to pre-strike levels.

In
2003, a new crude oil pipeline between La Ceiba and Santa Rosa began operations. The crude oil pipeline significantly improved the safety and efficiency when compared to the previous
one.

In
April 2004, gas production began in Blocks Yucal Placer North and South, in the State of Guárico situated in the central-east zone of Venezuela.
Repsol YPF has a 15% interest in the consortium (Total, Inepetrol and Otepi have 69.5%, 10.3% and 5.2% interests, respectively) that owns the project.

Total
daily production of the blocks is 1.7 million m3 (an average of 10,700 barrels of oil equivalent per day).



Refining
and Marketing operations contributed 31.0% of the total operating income of Repsol YPF in 2003, 25.7% in 2002 and 28.6% in 2001.

Repsol
YPF's Refining and Marketing business unit comprises the refining and transportation, as well as the marketing, both at the retail and wholesale level, of petroleum products and
the distribution and retail sale of liquefied petroleum gas or LPG, including butane and propane. Repsol YPF conducts refining activities in three countries as operator and is the leading refiner in
the Spanish and Argentine markets. Repsol YPF operates five refineries in Spain with a total installed capacity of 740,000 barrels
per day, and four refineries in Latin America (Argentina and Peru) with a total installed capacity of 421,500 barrels per day. Repsol YPF conducts distribution and marketing activities in 11 countries
and is the leader in the Spanish and Argentine markets. Repsol YPF's network of points of sale was made up of 3,611 service stations and gas pumps in Spain and 3,003 service stations and gas pumps
outside Spain, mainly in Latin America, at December 31, 2003.

On
December 17, 2001, Repsol YPF and Petrobras swapped certain Repsol YPF assets in Argentina for Petrobras assets in Brazil. The assets swapped by each company were valued at
approximately $559 million (€625 million). See Note 23 of the Consolidated Financial Statements. Pursuant to the agreement, Petrobras acquired Eg3, the fourth
largest refining and marketing company in Argentina, with a network of approximately 700 service stations, and a refinery in Bahía Blanca, with a capacity for 30,500 barrels per day,
while Repsol YPF received a 30% interest in the REFAP refinery, in southern Brazil, with a refining capacity of 180,000 barrels per day, a network of 240 service stations selling 480 million
liters per year in central, southeast and southern Brazil, and a 10% stake in Albacora Leste, with total reserves of approximately 1,300 million barrels of oil equivalent.

29

---





Repsol
YPF's refineries produce a wide range of petroleum products, including automotive and industrial fuels, lubricants, basic petrochemicals, asphalt and coke. Repsol YPF conducts its
refining business in Spain through Repsol Petróleo and Petronor, in which it has 99.97% and 85.98% ownership interests, respectively. Repsol Petróleo and Petronor are, in
the aggregate, the largest domestic refining operation in Spain, with 59% of estimated domestic refining capacity in terms of effective installed capacity in primary distillation as of
December 31, 2003.

Repsol
YPF initiated operations in Latin America in 1996 with the acquisition, through the consortium Refinadores del Perú (Refipesa), of a 25.7% interest in the La
Pampilla refinery (Relapasa). In December 2003 the consortium was dissolved and Repsol YPF now has a direct participation of 50.29% in the refinery. Repsol YPF is the technical operator of the
Pampilla refinery.

Repsol
YPF owns and operates three refineries in Argentina: La Plata, Luján de Cuyo and Plaza Huincul, with a total installed capacity of 319,500 barrels per day, which
accounts for 51% of Argentina's estimated refining capacity in terms of effective installed capacity in primary distillation as of December 31, 2003. Additionally, Repsol YPF has interests in
one refinery in Argentina and in two refineries in Brazil.



The
following table sets forth the capacities of Repsol YPF's wholly- and partially- owned refineries at December 31, 2003.

|Refining capacity and configuration(2) |               | Primary Distillation         |                  | Conversion
Index(1) |       | Lubricants
|-------------------------------------- | ------------- | ---------------------------- | ---------------- | ------------------- | ----- | ----------
|
|Spain                                  |               |                              |                  |                     |       |           
|                                       | Cartagena     |                              | 100              |                     |      |           
|                                       | La Coruña     |                              | 120              |                     | 59    | %         
|                                       | Puertollano   |                              | 140              |                     | 57    |           
|                                       | Tarragona     |                              | 160              |                     | 44    |           
|                                       | Bilbao        |                              | 220              |                     | 31    |           
|                                       |               |                              |                  |                     |       |           
|                                       |               | Total Repsol YPF (Spain)     |                  | 740                 |       | 39        
|                                       |               |                              |                  |                     |       |           
|Argentina                              |               |                              |                  |                     |       |           
|                                       | La Plata      |                              | 189              |                     | 68    |           
|                                       | Luján de Cuyo |                              | 106              |                     | 112   |           
|                                       | Plaza Huincul |                              | 25               |                     |      |           
|                                       | Refinor(3)    |                              | 14               |                     |      |           
|                                       |               |                              |                  |                     |       |           
|                                       |               | Total Repsol YPF (Argentina) |                  | 334                 |       | 74        
|                                       |               |                              |                  |                     |       |           
|Peru                                   |               |                              |                  |                     |       |           
|                                       | La Pampilla   |                              | 102              |                     | 13    |           
|Brazil                                 |               |                              |                  |                     |       |           
|                                       | REFAP(4)      |                              | 54               |                     | 12    |           
|                                       | Manguinhos(5) |                              | 4                |                     | 14    |           
|                                       |               |                              |                  |                     |       |           
|                                       |               | Total Repsol YPF (Brazil)    |                  | 58                  |       | 12        
|                                       |               |                              |                  |                     |       |           
|                                       |               |                              | Total Repsol YPF |                     | 1,234 |           
|                                       |               |                              |                  |                     |       |           

---

30

---



During
2003, Repsol YPF's refineries processed 53.4 million tonnes of crude oil, of which 28% was from Repsol YPF's own production and the remaining crude was purchased either
through contracts or in the "spot" markets. In connection with a long-standing relationship with Pemex, Repsol YPF purchases from Pemex an amount of barrels per day which is fixed
annually. In 2002 and 2003, that amount was fixed at approximately 103,000 and 96,000 barrels per day, respectively. The 2004 amount has not yet been fixed, but it is estimated at 104,000 barrels per
day. A total of 8.9 million tonnes of crude oil and 3.2 million tonnes of intermediate and finished products were bought and resold in 2003. All of these operations are denominated in
U.S. dollars.

The
following table sets forth the origin of crude oil processed during 2003, 2002 and 2001:

2003

2002

2001Middle East

13
%
13
%
14
%North Africa

16

13

14West Africa

8

8

10Latin America

46

52

50Europe

17

14

12100
%
100
%
100
%


The
following table sets forth Repsol YPF's refining production figures for its principal products for the periods indicated:

2003(1)

2002(1)

2001Feedstock processed(2)Crude oil

53.4

52.8

51.0Other feedstock

5.2

5.1

5.7Total

58.6

57.9

56.7Refining production(3)Intermediate distillates

24,890

24,336

23,654Gasolines

11,913

11,657

11,285Fuel oil

8,337

8,288

7,994LPG

1,728

1,687

1,704Asphalts(4)

1,596

1,504

1,405Lubricants

456

450

406Other (except petrochemical)

2,921

3,397

3,476Total

51,841

51,319

49,924


---

31

---



Spain.Repsol YPF's refineries in Spain operated at an average capacity of 87.6% in 2003, as compared to 86.3% in 2002 and as
compared to an estimated 94.6% for all Spanish refineries in 2003. In 2003, Repsol YPF's five Spanish refineries refined 32.4 million tonnes of crude oil, representing 57% of all crude oil
refined in Spain. The geographic distribution of Repsol YPF's refineries and their proximity to the principal Spanish centers of consumption provide significant competitive advantages. Two refineries
(at Cartagena and Tarragona) are located on the Mediterranean coast, one (at La Coruña) is located on the northwest coast, the fourth (at Puertollano) is located inland alongside the
major pipeline network and the fifth (at Bilbao) is located on the northern coast. The five refineries owned by Repsol YPF in Spain are undertaking a capital investment program for the purpose of
adapting their production schemes to the strict European Union product quality requirements which will take effect on January 1, 2005. Pursuant to this program, a hydrocracking unit in
Tarragona started operations in mid-2002. Other important projects currently being undertaken are a mild hydrocracking unit in Puertollano, the start up procedures relating to which began
in June 2004, a FCC feed pretreatment unit in La Coruña and an isomerization unit in the Tarragona refinery. See Section 2.3.1.2.1 "Regulation of the
Petroleum IndustrySpainOil and Petroleum Derivatives-Liquid Hydrocarbons."

At
December 31, 2003, Repsol YPF had storage facilities with 30 million barrels of crude capacity and 45 million barrels of refined product capacity.

The
Spanish government requires that entities involved in the production or distribution of petroleum products in Spain maintain minimum levels of reserves of those products. Under
legislation enacted in 1994,Corporación de Reservas Estratégicas(CORES), a Spanish government corporation, was created
by the Spanish government to establish, manage and maintain levels of strategic reserves of crude oil and
petroleum products. In 2003, 127,000 tonnes of products were sold to CORES. Repsol YPF complies in all material respects with current regulations relating to CORES.

Argentina.Since June 23, 1999, Repsol YPF, through YPF, has owned and operated the refineries of La Plata,
Luján de Cuyo and Plaza Huincul. In 2003, YPF's refineries in Argentina operated at an average capacity of 93.1%, as compared to 89.8% in 2002.

La
Plata refinery has the largest refining capacity in Argentina, with an installed capacity of 189,000 barrels per day. It is located 60 kilometers from Buenos Aires and is equipped
with three crude units, two vacuum units, two FCC units and two coker units.

Luján
de Cuyo refinery has an installed capacity of 105,500 barrels per day. It is located in the Province of Mendoza and supplies central Argentina. This refinery is
equipped with two primary distillation units, a vacuum unit, a FCC unit, a hydrocracking unit and two coker units.

Plaza
Huincul refinery is located in the Province of Neuquén and has a capacity of 25,000 barrels per day.

YPF
also has a 50% participation in the Refinor refinery, in the Province of Salta.

In
2003, total crude oil processed in Argentina amounted to 15.4 million tonnes.

Peru.La Pampilla, located 25 kilometers north of Lima, has a total refining capacity of approximately 102,000 barrels per
day, which Repsol YPF estimates accounts for more than 50% of Peru's refining capacity at December 31, 2003. In 2003, La Pampilla operated at an average capacity of 73.9%, compared to 76.0% in
2002. La Pampilla benefits from its proximity to Lima, which Repsol YPF estimates represents more than 50% of Peru's demand for oil, as well as from the distance of alternative sources of supply (the
Gulf of Mexico). During 2003, the La Pampilla refinery processed 3.9 million tonnes of crude oil.

32

---



Repsol YPF is undertaking several projects aimed at increasing the conversion capacity of La Pampilla refinery. In 2002, the revamping of the existing vacuum and FCC units was completed.
Other projects currently being undertaken are the construction of a new vacuum unit and a visbreaker. These projects will result in diminished output of fuel oil and a corresponding increase in light
refined products of higher added-value.

Brazil.Repsol YPF has a 30.71% interest in the refinery at Manguinhos, near Río de Janeiro, and a 30%
interest in the REFAP refinery, in southern Brazil. The interest in the REFAP refinery was acquired by Repsol YPF pursuant to a swap agreement with Petrobras in 2001. See Note 23 to the
Consolidated Financial Statements.



The
following table sets forth the sales of petroleum products, broken down by product and markets. (This table does not include LPG sales to Repsol YPF's related distribution companies.
See Section 2.2.2.4 "Refining and MarketingLPG.")

2003(1)

2002

2001

03 vs. 02

02 vs. 01(thousand tonnes)SpainGasolines

4,378

4,345

4,380

0.8
%
(0.8
)%Diesel oil/Kerosene

16,495

15,469

14,929

6.6

3.6Fuel oil

4,354

4,763

4,019

(8.6
)
18.5Other

2,634

2,208

2,313

19.3

(4.5
)27,861

26,785

25,641

4.0

4.5ArgentinaGasolines

1,219

1,292

1,436

(5.6
)%
(10.0
)%Diesel oil/Kerosene

5,222

5,061

5,386

3.2

(6.0
)Fuel oil

212

67

72

216.4

(6.9
)Other

1,463

1,581

1,656

(7.4
)
(4.5
)8,116

8,001

8,550

1.4

(6.4
)OtherGasolines

4,335

4,170

4,150

4.0
%
0.5
%Diesel oil/Kerosene

6,322

5,384

4,712

17.4

14.3Fuel oil

3,783

3,569

4,656

6.0

(23.4
)Other

3,160

2,182

1,973

44.8

10.617,600

15,305

15,491

15.0

(1.2
)TotalGasolines

9,932

9,807

9,966

1.3
%
(1.6
)%Diesel oil/Kerosene

28,039

25,914

25,027

8.2

3.5Fuel oil

8,349

8,399

8,747

(0.6
)
(4.0
)Other

7,257

5,971

5,942

21.5

0.553,577

50,091

49,682

7.0

0.8


---

In
2003, approximately 15.7% of sales in Spain were of gasoline and 59.2% were of intermediate distillates (diesel oil/kerosene). In Argentina, 15.0% of sales were of gasoline and 64.3%
of intermediate distillates. In 2003, other sales were made principally to the following markets: Europe (Portugal, France and Italy), Latin America and the United States.

33

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Pursuant
to the provisions of Royal Decree Law 6/2000, Repsol YPF was required to reduce its individual stake in CLH to a maximum of 25% and, combined with the stakes of the other
entities with refining capabilities in Spain, to a maximum of 45%. Repsol YPF satisfied this requirement in March 2003. See Section 2.3.1.2.1 "Regulation of the Petroleum
IndustrySpain-Oil and Petroleum Derivatives-Liquid Hydrocarbons." In order to comply with such provisions, Repsol YPF, Cepsa and BP, the other entities with refining
capabilities in Spain, sold 25% of CLH to Enbridge Inc. in March 2002; 5% to DISA Financiación S.A. in June 2002; 5% to China Aviation Oil in July 2002; and
5% to Petrogal Española, S.A. in November 2002. These sales represented aggregate capital gains for Repsol YPF of approximately €293 million. The sale
agreement executed in November 2001 for the sale of the 25% interest to Enbridge resulted in the deconsolidation of CLH's financial statements as of the fourth quarter of 2001.

In
March 2003, Repsol YPF, Cepsa and BP sold 10% of CLH to Oman Oil Company, reducing Repsol YPF's participation in CLH to 25% (5.33% indirectly held through its affiliate
Petronor) and, combined with the stakes of the other entities with refining capabilities in Spain, to 45%.

CLH
is the principal transporter of petroleum products in Spain. At December 31, 2003, CLH's transportation network consisted of 3,427 kilometers of refined product pipelines,
five tankers and 77 trucks. CLH also owns 40 storage sites (all of them connected to the multiple pipeline network with the exception of Gijón, Motril, and the three storage sites
located in the Balearic Islands), and 33 distribution facilities in airports, which in the aggregate represents a capacity of approximately 6.4 million cubic meters. CLH also owns four barges.

The
Puertollano refinery is connected in respect of the supply of crude oil to Cartagena and its docking facilities, through a 358 kilometer crude oil pipeline. This crude oil pipeline
started operations in 2000 and replaced the Málaga-Puertollano crude oil pipeline.

Repsol
YPF owns two crude oil pipelines in Argentina. One connects Puesto Hernández to the refinery of Luján de Cuyo (528 kilometers) and the other connects
Puerto Rosales to the refinery of La Plata (585 kilometers) and extends to Shell's refinery in Dock Sud at the Buenos Aires port (52 kilometers). Repsol YPF also owns a plant for the storage and
distribution of crude oil in Formosa with an operating capacity of 19,000 cubic meters. Repsol YPF owns 37% of Oldelval, operator of 888 kilometers of pipelines, its main pipeline being a double 513
kilometer pipeline that connects the Neuquén basin and Puerto Rosales. At December 31, 2003, Repsol YPF had an 18% interest in the 428 kilometer Transandean pipeline, which
transports crude oil from Argentina to Concepción in Chile. Repsol YPF also owns 33.15% of Termap, operator of two storage and port facilities: Caleta Córdova (province
of Chubut), which has a capacity of 264,000 cubic meters, and Caleta Olivia (province of Santa Cruz), which has a capacity of 246,000 cubic meters. Finally, Repsol YPF has a 30% interest in Oiltanking
Ebytem, operator of the maritime terminal of Puerto Rosales, which has a capacity of 480,000 cubic meters, and of the new crude oil pipeline that connects the Repsol YPF Puerto RosalesLa
Plata crude oil pipeline from Brandsen to the ESSO refinery in Campana (168 km) in the Province of Buenos Aires.

In
Argentina, Repsol YPF also operates a network of multiple pipelines for the transportation of refined products with a total length of 1,801 kilometers. Repsol YPF also owns 16 plants
for the storage and distribution of refined products with an approximate operating capacity of 983,620 cubic meters. Three of these plants are annexed to the refineries of Luján de
Cuyo, La Plata and Plaza Huincul. Ten of these plants have maritime or fluvial connections. Repsol YPF also owns more than 54 airport facilities with a capacity of 24,000 cubic meters, as well as 27
trucks.

In
Chile, Repsol YPF leases two tanks of 10,000 cubic meters each and one tank of 4,500 cubic meters for storage of gasoline and gas oil. These tanks are located at the facilities of
Oxiquin, close to

34

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the
ENAP refinery. The plant is connected through a pipeline to a maritime loading/unloading facility where vessels dock to unload gasoline and gas oil. Repsol YPF also owns a plant for storage and
distribution of refining products at Lautaro with a capacity of 900 cubic meters. Additionally, Repsol YPF leases storage capacity from ENAP, one of 4,000 cubic meters at Maipu and one of 1,500 cubic
meters at Linares.

At
December 31, 2003, Repsol YPF leased time charter tankers for the transport of crude oil with a total capacity of 202,644.2 dead weight tonnes. In addition, Repsol YPF leased
tankers with a total capacity of 98,703 and 10,075 cubic meters, respectively, for transporting other products and LPG. In Argentina, Repsol YPF leased time charter tankers for shipping other products
and crude oil with a total capacity of 67,500 and 57,000 cubic meters, respectively. In Peru, Relapasa leased time charter vessels for purposes of transportation of products with a total capacity of
90,000 cubic meters.



Repsol
YPF's points of sale (service stations and gas pumps) as of December 31, 2003 were as follows:

Marketing operations

Controlled
by Repsol
YPF(1)

Flagged(2)

TotalSpain

2,865

746

3,611Argentina(3)

173

1,737

1,910Peru

85

46

131Ecuador

58

66

124Chile

121

65

186Brazil

48

467

515Portugal

88

26

114Italy



23

23Total

3,438

3,176

6,614


---

The
number of service stations at December 31, 2003 had decreased to 6,614 service stations from 6,629 service stations at December 31, 2002, mainly as a result of the
termination of agreements with flagged service stations and the closure of less profitable points of sale. Additionally, the number of sales points of Repsol YPF in Spain, and of YPF in Argentina was
slightly reduced as a result of restrictions imposed to increase competition and reduce Repsol YPF's market share in both countries.

Spain.Repsol YPF's marketing strategy in Spain is to increase the number of points of sale with "strong links", meaning
those points of sale affiliated under long-term commercial contracts or other types of contractual relationships that secure a more permanent linkage, or that are operated by Repsol YPF.
Repsol YPF's strategy also includes increasing its margins through sales of products other than gas, increasing the loyalty of its customers and retaining the Campsa, Petronor and Repsol brand names,
thereby differentiating its products in Spain by positioning each brand individually.

35

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Repsol
YPF sells gasoline to the public in Spain under the Campsa, Petronor and Repsol brand names with the following distribution at December 31, 2003:

Points of sale by brand

Points of saleCampsa

1,641Repsol

1,541Petronor

401No brand

28Total

3,611
(1)


---

In
Spain, at December 31, 2003, Repsol YPF had "strong links" with 2,865 of its points of sale (of which 936 were operated by Repsol YPF), representing 79.3% of its points of
sale, which reflects the high degree of connection within Repsol YPF's point of sales network. The remaining 20.7% of Repsol YPF's points of sale were flagged. Repsol YPF operates 25.9% of its total
points of sale in Spain.

Repsol
YPF supplies oil products not only through its own sales network, but also through other operators. Repsol YPF believes that its network of refineries in Spain positions it to be
a competitive supplier of oil products to other operators.

The
Spanish market for petroleum products is a mature market. In order to maintain its market share and profitability, Repsol YPF offers higher value-added products and services, the
most important of which are the following: Autoclub, Gasoleo de Automoción "e+", the Repsol Supercor Service Stations (which Repsol YPF operates jointly with El Corte
Inglés, Spain's largest department store), the Repsol YPF VISA card and Solred Card.

In
2003, Autoclub was created. This is an automobile club in which Repsol YPF has a 60% interest and Aon Gil y Carvajal owns the remaining 40%. Persons affiliated with the club can enjoy
products and services such as mechanical repair services, personal and sanitary assistance, legal counseling and legal defense, technical advisory services, insurance as well as the purchase and sale
of vehicles. In March 2004, Repsol YPF, Mutua Madrileña Automovilista and Aon Gil y Carbajal signed an agreement pursuant to which Mutua Madrileña became a member
of Autoclub Repsol with a participation of 29.5%. The participation of the remaining members rose to to 50.1% (Repsol YPF) and 20.4% (Aon Gil y Carbajal). This agreement will result in an increased
client base for Autoclub of up to 1.2 million clients.

In
2003, Repsol YPF launched "e+" diesel, a high-performance, advanced-technology and environmentally-friendly diesel.

The
Repsol Supercor Service Stations feature the sale of a wide variety of consumer goods in addition to gasoline. At December 31, 2003 Repsol YPF owned 26 of the 28 stations
operated by Gespevesa, which are located principally in Madrid, Barcelona and Málaga.

The
Repsol YPF VISA card, launched in November 1998, is the first of its type to be issued by an oil company in Spain and provides special advantages to its holders, including
cash-back for purchases of fuel, services and other products at Repsol, Campsa and Petronor service stations belonging to the Solred Network. The card also provides discounts on services
and purchases made at other commercial establishments. BBVA and La Caixa provided support for the launching of Repsol YPF VISA. In 1991, the Solred Card was launched, providing special advantages for
members of a number of clubs and corporate clients.

36

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Discounts
granted by Repsol YPF to holders of Repsol YPF VISA and Solred cards for purchases of fuel and other products or services in the Group's service stations are deducted from the
operating revenues reported by the Group.

Repsol
YPF believes that, as of December 31, 2003, its competitors in Spain with local refining capacity (Cepsa Elf and B.P. Oil España) had links with
approximately 26.8% of the points of sale of the Spanish market. Repsol YPF estimates that, as of December 31, 2003, approximately 2,772 service stations are owned or are flagged by companies
that do not own refineries in Spain, compared to 2,573 at December 31, 2002 and 2,446 at December 31, 2001.

Royal
Decree Law 6/2000 established a requirement to inform the Ministry of Economy of the current sale prices at the service station's network and a prohibition on opening new points of
sale for a period of five years for wholesale distributors with a market share greater than 30% (three years in the case of wholesale distributors with a market share between 15% and 30%). Repsol
YPF's service stations currently represent 41.4% of the total number of service stations in Spain. Repsol YPF will, therefore, focus on improving the quality of service stations within its network in
Spain and on increasing the proportion of stations in its network in Spain that it operates directly. Repsol YPF expects that its market share of service stations in Spain will gradually decline until
2005 and that its sales of gasoline in Spain will not increase materially prior to June 2005. The measures set forth in Royal Decree Law 6/2000 also facilitate the installation of new service
stations in large commercial establishments. See Section 2.3.1 "Regulation of the Petroleum IndustrySpain."

Other Countries.The acquisition of YPF represented the continuation of Repsol YPF's plans to extend its distribution and
retail activities of petroleum products outside of Spain. In accordance with these plans, Repsol YPF also sells its petroleum products through service stations located in member states of the European
Union and Latin America.

Argentina.Repsol YPF's presence in Argentina consists of 1,910 service stations, of which 1,877 are YPF-branded,
and the remainder are service stations co-owned by Repsol
YPF and Refinor (through YPF's 50% participation in Refinor). OPESSA (a 100% subsidiary of Repsol YPF) operates 148 service stations.

Repsol
YPF estimates that as of December 31, 2003 YPF's points of sale accounted for 29% of the Argentine market. In Argentina, Shell, Petrobras, and Esso are Repsol YPF's main
competitors, with approximately 15%, 12% and 9%, respectively, of the points of sale in Argentina.

Peru.Through Repsol Comercial SAC, Repsol YPF's network as of December 31, 2003 consisted of 131 points of sale, 85
of which were directly owned and 59 of which were directly operated.

Ecuador.Through Repsol YPF Comercial del Ecuador, Repsol YPF's network as of December 31, 2003 consisted of 124
points of sale, 58 of which were directly owned and 14 of which were directly operated.

Chile.Repsol YPF Chile, as of December 31, 2003, operated a network of 186 points of sale, 121 of which were
"strongly-linked" (43 directly owned and 78 leased) and 65 of which were affiliated. OPESE (100% owned by Repsol YPF Chile) directly operated 27 points of sale, 11 of which were directly owned and 16
of which were leased.

Brazil.Repsol YPF Brasil's network consisted as of December 31, 2003 of 515 points of sale (including those swapped
with Petrobras), 48 of which were directly owned and directly operated.

In
2001, pursuant to the swap agreement with Petrobras, Repsol YPF received a network of 240 service stations with estimated annual sales of 480 million liters of gasoline and
products in central, southeast and southern Brazil, making Repsol YPF a vertically-integrated oil company in the country. See Section 2.2.2 "Refining and Marketing."

37

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Europe.As of December 31, 2003, Repsol YPF had 114 points of sale in Portugal (88 owned, 26 flagged), 40 of which
were directly operated through GESPOST, a wholly-owned subsidiary of Repsol Portugal. Additionally, Repsol YPF had 23 flagged points of sale in Italy as of December 31, 2003.

Repsol
YPF's total refining and marketing investment spend for 2003 was €663 million. Repsol YPF also invested significant amounts to increase the number of
strongly-linked service stations in its network and to construct new service stations. Repsol YPF intends to continue investing to improve connections within the service stations network and to
increase the number of stations it directly operates.

Other Petroleum Markets.Repsol YPF also sells petroleum products to the industrial, marine and aviation markets. Products
sold in these markets include diesel fuel, kerosene, fuel oil, lubricants, asphalt, petroleum coke and other derivative products.

In
2002, the lubricants, derivatives and asphalts activities started operating as one worldwide business unit. Effective as of January 2, 2002, the three entities responsible for
these activities, Repsol Distribución, Repsol Derivados and Repsol Productos Asfálticos, were merged into a new entity named Repsol YPF Lubricantes y Especialidades, S.A.
This new operational structure, which incorporates the European and Latin American businesses, facilitates the management of these operations by contributing to a more streamlined corporate structure.

Repsol
YPF, through Repsol Petróleo, holds a 50% interest in Asfaltos Españoles, S.A. (ASESA), a company that produces asphalt. Repsol YPF also has a 100%
interest in each of Repsol YPF Lubricantes y Especialidades, S.A. (formerly Repsol Productos Asfálticos) and 100% of Asfalnor (through Petronor), both of which distribute and market
asphalt products.



Sales
of LPG during the last three years by region and type of product are as follows:

2003

2002

2001(thousand tonnes)Sales volume of LPG(1)Spain

1,992

2,030

2,102Argentina

308

342

363Rest of Latin America

809

783

696Rest of the World

84

81

84Total

3,193

3,236

3,245Sales volume of LPG(1)Bottled

2,124

2,273

2,298Bulk, pipeline and others(2)

1,069

963

947Total

3,193

3,236

3,245


---

Repsol
YPF is reorganizing its international LPG activities through the transfer of all of its share holding interests in LPG activities to Repsol Butano, which will oversee these
activities. The purpose of this reorganization is to centralize the management of LPG's activities, maximize existing synergies and optimize the transfer of technology among the different units. At
the end of 2003, Repsol YPF merged Repsol Portugal Gas Petroleo Liquefeito into Repsol Butano. Repsol Portugal Gas Petroleo Liquefeito, which was spun-off from Repsol Portugal, distributes
LPG in Portugal.

38

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Spain.Repsol YPF's LPG distribution activities are conducted by Repsol Butano, which has been distributing LPG to Spanish
households and industrial users for over 40 years and is currently the largest wholesaler and retailer of LPG in Spain. Repsol Butano supplies bottled LPG to more than 10 million
customers in Spain, accounting for virtually all of the domestic market. While the vast majority of its sales of bottled LPG are to the household market, it also sells LPG in bulk form (by truck and
pipeline) to industrial, commercial and household customers for use as a fuel.

LPG
bottling takes place at Repsol Butano's 19 plants located throughout Spain. After LPG is bottled at a plant, it is delivered to Repsol Butano's network of approximately 699 bottled
gas distribution agents. The distribution agents deliver LPG to retail customers at home. Repsol Butano has approximately 32 million bottles for the storage and delivery of LPG in circulation.

Bottled
LPG is used almost exclusively as a household fuel for cooking, water heaters and, in some cases, heating. The growth of the Spanish economy, with significant increases in
residential housing and family income, combined with limited availability of natural gas in some parts of Spain, has allowed Repsol Butano to become the largest bottled LPG distributor in Europe in
terms of revenues and volume. Bottled LPG accounted for 65% of Repsol Butano's total sales by volume in 2003.

Approximately
29.2% of Repsol Butano's sales in 2003 consisted of bulk LPG. Bulk LPG is used as fuel in the agricultural, industrial and household markets and for transportation. Repsol
Butano sells most bulk LPG directly to end users. Bulk LPG is used as an industrial fuel for industrial ovens and heating for the farming industry. Bulk LPG is used in the household market,
particularly in multiple unit dwellings, for the same uses as bottled LPG. Most bulk LPG is delivered by tanker trucks. Repsol Butano has begun, however, to distribute LPG via pipelines connected to
industrial and household users and believes that such distribution may be an important intermediate step between the bottled LPG market and the natural gas market of the future.

Repsol
Butano sold 1.99 million tonnes of LPG in 2003, compared to 2.0 million tonnes in 2002 and 2.1 million tonnes in 2001. In 2003, approximately 54% of Repsol
Butano's supply of raw material was obtained from Spanish refineries 36% from refineries affiliated to Repsol YPF and the remaining 18% from Cepsa and BP, with the remainder purchased from sources
located in the North Sea and Algeria.

Repsol
YPF expects that, as a direct result of the introduction of natural gas in key urban markets in Spain as an alternative to LPG, a portion of the LPG customer base growth over time
will be diverted to natural gas, although Repsol YPF believes that the total volume of LPG sales will undergo a slight decrease due to lower sales of LPG, notwithstanding a sustained level of bulk
sales.

In
October 2000, the Spanish government established a system to determine maximum retail prices for bottled LPG exceeding eight kilograms by reference to a maximum price, set
every April and October by the Spanish government on the basis of international prices of LPG during the previous 12 months, and a maximum markup that may be charged over such reference price,
which is reviewed annually by the Spanish government. This system has been unfavorable to Repsol YPF in 2003 because such maximum price has been calculated based on an estimated average price of raw
materials of €268 per tonne, as compared to an actual average price of €280 per tonne. Prices of raw materials in the international markets were, in the first quarter
of 2003, substantially higher than the prices used in the calculation of the maximum price, and since April 2003, below such reference prices. In April 2002, the Spanish government
increased the markup that may be charged over the reference price by 12.9% to €0.317624 per kilogram. During 2003, the revisions to the maximum retail price of bottled LPG in April and
October caused no increases in marketing costs, which remain at €0.317624 per kilogram. See Section 2.3.1.2 "Regulation of the Petroleum
IndustrySpainOil and Petroleum DerivativesLiquid Petroleum Gas." In 2003, the average selling price for bottled LPG in Spain, which includes home delivery, was
approximately 54% lower than the average selling price elsewhere in Europe, which does not include home delivery.

39

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In
March 2004, Repsol Butano acquired 51% of Vía Red for €1.3 million. The principal objective of this business is home delivery of the most
widely-used products in Spain. Currently the business has 155 distributors in 33 provinces, and is developing a business plan to increase its level of activity in the provinces in which it
is already present and extend its activities to new provinces, in both cases through the distribution network of Repsol Butano.

Argentina.YPF is the largest producer of LPG in Argentina, with total production of 924,800 tonnes in 2003, which
represented 29.5% of total LPG production in Argentina.

Repsol
YPF holds a 85% interest in Repsol YPF Gas S.A. through Repsol Butano, S.A. and Pluspetrol holds the remaining 15%. Repsol YPF Gas distributed 284,530 tonnes of LPG to the retail
market in Argentina in 2003 and has a market share of approximately 34.5%. Additionally, more than 23,112 tonnes of LPG were distributed to pipeline networks through YPF in 2003.

Bolivia.In September 2001, Repsol YPF formed a joint venture with SAMO, the first private company in the LPG market,
called Repsol YPF Gas de Bolivia. Repsol YPF has a 51% stake in, and control of Repsol YPF Gas de Bolivia. In January 2002, Repsol YPF Gas de Bolivia was transferred from Repsol YPF Bolivia,
S.A. to Repsol Butano, S.A. The sales of Repsol YPF Gas de Bolivia in 2003 were approximately 121,655 tonnes of LPG, which would be equivalent to a market share of 39.5%.

In
December 2002, Repsol YPF reorganized all LPG separation activities at the Paloma plant (block Mamoré) and transferred them to Repsol YPF GLP de Bolivia (a
wholly-owned subsidiary of Repsol Butano), strengthening the integrated management of the GLP chain. Repsol YPF GLP de Bolivia produced 43,142 metric tonnes of GLP in 2003 and participated in the
marketing of 149,737 metric tonnes of LPG to wholesalers, including deliveries to Repsol YPF Gas de Bolivia.

Chile.In November 2000, Repsol YPF acquired 45% of the capital stock of Lipigas Group, leader in the Chilean market,
for $170 million, with an option, valid from 2003 until 2005, to acquire an additional 10%. If Repsol YPF exercises its option to acquire a further 10% interest, the sellers will have a
three-year put option to sell the remaining 45%. In 2003 and 2004, the sale price was adjusted downward by US$5.3 million per year as a result of the Lipigas Group not achieving the
objectives set in 2000. As of the date of this annual report, Repsol YPF has not exercised this option. The shareholders agreement signed with the other partners in the acquisition provides for shared
operating control of the company. On March 21, 2002, Repsol YPF's 45% interest was transferred to Repsol Butano, S.A. Lipigas had annual sales of 358,467 tonnes in 2003, which amounts to a
39.2% market share.

Peru.In 2003, Repsol Butano, through Repsol YPF Comercial del Perú, sold 280,020 metric tonnes of LPG,
representing a retail market share of 27.9%.

Ecuador.In 2003, Duragas, a 100% owned subsidiary of Repsol Butano, had sales of 286,686 tonnes of LPG in 2003 and is a
leading participant in Ecuador's LPG distribution market with a 37.8% market share.

Other Markets.Repsol YPF has extended its distribution of LPG to Portugal and France through the same marketing strategies,
including home service, that are used by Repsol Butano in Spain. Repsol YPF is also active in Morocco through its 100% interest in National Gaz of Morocco, a company engaged in the distribution of
LPG. Total annual sales in these countries were 84,055 tonnes of LPG in 2003.

40

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In
2003, the Chemicals division generated operating income of €155 million, compared to operating income of €97 million in 2002.

Repsol
YPF leads the Spanish market in basic and derivative petrochemical products, polymers, intermediate products and rubber. Repsol YPF's most significant production facilities are
located in Spain (the Puertollano and Tarragona complexes) and Argentina (the La Plata and Bahía Blanca complexes). The Chemicals division is responsible for management, feedstock,
distribution and marketing, principally in Europe and the Mercosur region. Most of these units are in the same industrial complexes as Repsol YPF's refineries, allowing for a high degree of
integration between both businesses.

The
following table shows the production capacity for the main products of basic and derivative petrochemicals at December 31, 2003.

Europe

Latin America(thousand tonnes)Production capacityBasic petrochemicalsEthylene

910

Propylene

625

175Butadiene

152

Benzene

275

BTX (Benzene, Toluene, Mixed Xylenes)



244Derivative petrochemicalsPolyolefinsPolyethylene(1)

580

Polypropylene

440

85Intermediate ProductsPropylene oxide, Polyols, Glycols and Styrene Monomer

995

Acrylonitrile/MMA

166

Rubber

54

45Others(2)

78

Industrial ProductsOrtho/Paraxylene



63Ammonia/Urea



933Methanol



411Others(3)



285


---

41

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The
table below presents Repsol YPF's sales volume in 2003, 2002 and 2001 of petrochemical products:

2003

2002

2001(thousand tonnes)Petrochemical sales by type of productBasic petrochemicals

1,058

723

712Derivative petrochemicals

2,949

2,803

2,663Total

4,007

3,526

3,375Petrochemical sales by regionSpain

1,161

1,257

1,148Argentina

662

539

632Other

2,184

1,730

1,595Total

4,007

3,526

3,375


Repsol
YPF produces, distributes and directly markets petrochemical products. At the same time, with respect to part of its portfolio of petrochemical products, Repsol YPF also acts
through the following affiliated companies:





Repsol
YPF's basic petrochemical production is focused on obtaining olefins and aromatics, with an annual capacity of 910 thousand tonnes of ethylene in olefins and
519 thousand tonnes of aromatics.

Repsol
YPF's basic petrochemical production operations are closely integrated with Repsol YPF's refining activities, as olefin and aromatics production units are physically located
within Repsol YPF's

42

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refineries.
The advantages which result from this structure include flexible supply of feedstocks to the olefin cracker, efficient use of byproducts (such as hydrogen and pyrolysis gasoline) and
synergies in power supply. Repsol YPF's basic and derivative petrochemicals operations are also well integrated.

Repsol
YPF's sales of basic petrochemicals products increased from 723 thousand tonnes in 2002 to 1,058 thousand tonnes in 2003, of which 24 thousand tonnes were
sold in Spain, 207 thousand tonnes were sold in Argentina and 827 thousand tonnes were sold in other markets. By type of process, petrochemical sales in 2003 can be broken down as
follows: 476 thousand tonnes of basic petrochemical products obtained by olefin cracker and fluid catalytic cracking refining units and 582 thousand tonnes obtained by aromatics
extraction and a methanol unit.



Repsol
YPF classifies its derivative petrochemicals products in three categories: polyolefins, intermediate products and industrial products.

Polyolefins
include a wide variety of plastics which are produced principally in Spain at the Tarragona and Puertollano complexes. In Argentina, Repsol YPF has a 50% stake in the
production of Petroken at the La Plata complex.

Intermediate
products include a wide variety of petrochemical products, such as styrene, propylene oxide, glycols, polyols, acrylonitrile, rubber, pigments and organic dyes.

Industrial
products include a varied group of feedstocks for chemical, industrial, manufacturing and agricultural activities. Industrial products are used in the production of, among
other things, solvents, lubricant oils and detergents. Several examples of industrial products which Repsol YPF produces are oxo-alcohols, xylenes, linear alkylbenzene, urea and methanol.
Industrial products are produced in Argentina at the La Plata, Bahía Blanca and Plaza Huincul facilities.

Derivative
products allow for high integration, not only with basic petrochemicals, but also with upstream activities, as evidenced, for instance, by the integration of the ammonia/urea
and methanol plants which use natural gas as raw material.

Repsol
YPF markets its derivative petrochemical products through a commercial network divided into five regions, the Atlantic, Mediterranean, Northern Europe, Southern Europe and South
America regions. Repsol YPF also markets derivative petrochemical products in other regions through sales offices and agents.

Derivative
petrochemical products sales in 2003 were 2,949 thousand tonnes, of which 1,138 thousand tonnes were sold in Spain, 455 thousand tonnes in Argentina and
1,356 thousand tonnes in other markets.

Repsol
YPF's strategy for petrochemicals is to pursue growth in core strategic areas with the objective of creating a balanced portfolio comprised of projects capable of adding
significant value, further reducing operating costs and maintaining operating excellence.

The
key element of this strategy is to develop those products where Repsol YPF has a significant competitive advantage due to:



In
addition to these four factors, Repsol YPF will also consider developing petrochemical businesses that are directly linked to its own oil and gas activities.

43

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In
2000, Repsol YPF commenced operations of the propylene oxide/styrene and derivative complex in Tarragona, Spain, using state-of-the-art technology
owned by Repsol YPF, available to only two other companies in the world. This project is consistent with Repsol YPF's petrochemicals strategy.

In
2001, the Bahía Blanca plant, which produces ammonia and urea, started operations in Argentina as a 50/50 joint venture between Repsol YPF and Agrium, a
worldwide leader in fertilizers. This plant and the methanol unit in Plaza Huincul's refinery, which use natural gas as a raw material and enable the monetization of reserves, are examples of
integration between the petrochemical and upstream units. Repsol YPF obtains other synergies from the latter plant's location at Plaza Huincul's refinery such as in power supply and general
expenditures.

Repsol
YPF has taken advantage of the scheduled maintenance turnaround of the Tarragona cracker to increase its capacity for ethylene and propylene and reduce its operating costs.

Investments
in 2003 have been designed to improve our existing units, achieve minor capacity increases, improve product quality and improve safety and environmental standards. Repsol YPF
has also focused
on the initial development of projects required to support our growth strategy as set out in our strategic plan.



Gas
and Electricity activities contributed 5.5% to Repsol's YPF's operating income in 2003, 19.0% in 2002 and 21.6% in 2001.

Repsol
YPF is involved, directly or through its affiliates, in the natural gas and electricity sectors. In the natural gas sector, Repsol YPF is engaged in the supply, storage,
transportation and distribution of natural gas in Spain, the liquefaction of natural gas in Trinidad and Tobago, the sale and transportation of LNG in Spain and the United States, as well as the
distribution of natural gas in Argentina, Brazil, Colombia and Mexico. Repsol YPF is also involved in the supply and retail sale of natural gas liquids in Argentina. In the electricity sector, Repsol
YPF is engaged in power generation in Spain and Argentina.

In
April 2002, Repsol YPF unveiled plans to restructure its gas and electricity business. From an operational point of view, the downstream business of Gas and Electricity
(including electricity generation and natural gas distribution) would be integrated under Gas Natural, the upstream business of Gas and Electricity would remain under Repsol YPF and the midstream
business would be carried out by a joint venture between Gas Natural and Repsol YPF. From an organizational point of view, the vice-presidency of Gas and Electricity was eliminated and its
functions were assumed by the Chief Operating Officer (formerly known as Corporate Vice-president).

In
May 2002, Repsol YPF sold 23% of Gas Natural. Since the date of that sale, Repsol YPF has consolidated its remaining interest in Gas Natural by the proportional integration
method. See Section 2.2.4.1 "Natural GasSpain".

In
2003, Repsol YPF continued to restructure the gas and electricity business. Repsol YPF completed an asset restructuring under which Repsol YPF became the owner of 30% of BPTT, the
100% owner of the Trinidad and Tobago gas reserves, and Gas Natural will carry out the electricity business.

Repsol
YPF and Gas Natural are cooperating to coordinate the "midstream" business through the creation of separate legal entities for those activities that require a separate corporate
entity (e.g., integrated projects) or through specific collaboration agreements where mutual assistance and cooperation in carrying out midstream activities can give rise to synergies and other
benefits for both parties. Repsol YPF and Gas Natural believe that this is the approach that provides the greatest operating flexibility and transparency to markets.

44

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The
table below shows Repsol YPF's natural gas sales volumes by region in the last three years.

2003

2002

2001(billions of cubic meters)Natural gas sales by region(1)Spain

18.87

18.52

16.92Argentina

2.49

2.22

2.26Rest of Latin America

4.67

4.45

3.48Rest of the World

4.32

1.68

1.10Total

30.35

26.87

23.76


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Repsol YPF sells approximately 45% of its natural gas production to distribution companies, 41% to industrial clients and electric generators and exports the
remaining 14%, principally to Brazil and Chile. The largest part of Repsol YPF's proved natural gas reserves is located in the Neuquén basin, close to the Buenos Aires market.

Repsol
YPF also participates in the distribution of natural gas in Buenos Aires through Metrogas (a subsidiary of YPF) and Gas Natural BAN (a subsidiary of Gas Natural), two of the
largest natural gas distributors in Argentina. Since January 1, 2002, Metrogas is accounted for under the equity method.

Natural gas market in Argentina.In 2003, Repsol YPF's natural gas sales were 58.7 million cubic meters per day, a 15%
increase from 51.1 million cubic meters per day in 2002. Natural gas sales in 2003 and 2002 include export sales volumes to Brazil and Chile, which amounted to 7.7 and 7.8 million cubic
meters per day in 2003 and 2002, respectively.

Between
1980 (13,466 million cubic meters) and 2003 (46,430 million cubic meters), natural gas production in Argentina grew significantly, increasing 244% at an annual
average rate of 5.3%. This growth is partially due to the increase in customers in Argentina connected to the distribution systems from 2.5 million to 6.0 million, as well as a higher
rate of consumption per client and exports of gas, and the installation of gas fired power generators (combined cycles).

Approximately
72% of YPF's proved natural gas net reserves in Argentina are located in the Neuquén basin, which is strategically located near the principal market of
Buenos Aires and is supported by sufficient pipeline capacity during most of the year. Accordingly, Repsol YPF believes that natural gas from this region has a competitive advantage compared to
natural gas from other regions. In the past, the capacity of the natural gas pipelines in Argentina has proved to be inadequate at times to meet peak-day winter demand, and there is no
significant storage capacity in Argentina.

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During
the last 10 years, local pipeline companies added approximately 2,000 million cubic feet per day of new capacity. These additions have improved the ability to satisfy
peak-day winter demand, directly benefiting Repsol YPF.

Repsol
YPF is actively involved in projects intended to develop Repsol YPF's presence in the natural gas markets in Argentina and the rest of Latin America including the following:



Natural gas distribution in Argentina.Gas Natural has a 72% participation in the Invergas consortium, which holds, together
with Gas Natural SDGArgentina, 70% of Gas Natural BAN. Gas Natural BAN, which distributes natural gas in northern Buenos Aires, is one of the main natural gas distributors in Argentina.
In 2003, Gas Natural BAN sold approximately 2.49 billion cubic meters of natural gas to 1.2 million customers in Buenos Aires, compared to 2.22 billion cubic meters to
1.2 million customers in 2002 and 2.26 billion cubic meters to 1.2 million customers in 2001.

YPF
holds a 45.3% stake in GASA (which Repsol YPF accounts for under the equity method), which in turn holds a 70% stake in Metrogas, a natural gas distributor in southern Buenos Aires
as well as one of the main distributors in Argentina. During 2003, Metrogas distributed approximately 6.45 billion cubic meters of natural gas to 1.9 million customers. In 2002, Metrogas
distributed approximately 5.49 billion cubic meters of natural gas to 1.9 million customers.



In Brazil, Gas Natural distributes natural gas in the metropolitan area and throughout the state of Rio de Janeiro. On April 26, 2000, Gas Natural was
awarded a gas distribution concession in São Paulo state, which has an area of 53,000 square kilometers and a population of 2.5 million people. The concession area covers 93
municipalities, four of which have more than 100,000 inhabitants. It also has more than 6,000 industries with a potential consumption of approximately 807,000 cubic meters of natural gas per day. This
new concession enhances Gas Natural's presence in Brazil, where Gas Natural started operations in July 1997 as operator for Companhia Distribuidora de Gas do Rio de Janeiro CEG and CEG RIO
(formerly Riogás). In 2003, it sold approximately 2.55 billion cubic meters of natural gas to 0.6 million customers.

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In
July 2001, Gas Natural and Iberdrola signed an agreement involving Iberdrola's interests in CEG (Brazil), CEG Rio (Brazil) and Gas Natural ESP (Colombia), and Gas Natural's
participation in Gas Natural Mexico. Pursuant to this agreement, Gas Natural acquired in March 2002 an additional 9.9% interest in CEG, 13.1% in CEG Rio and 14.6% in Gas Natural ESP, and sold a
13.25% interest in Gas Natural México.

The
agreement signed with Iberdrola increased Gas Natural's interests in CEG to 28.8% from 18.9% and in CEG Rio to 38.3% from 25.1%.

In
November 2003, Gas Natural entered into a stock purchase agreement with Enron to acquire Enron's 25.4% interest in Compañía Distribuidora de Gas
do Río de Janeiro or CEG as well as its 33.8% interest in CEG RIO. Upon completion of this transaction, which is subject to the approval of Brazilian and other authorities, Gas
Natural's interest in CEG will increase to 54.2% and to 72.0% in CEG RIO.



Through Gas Natural ESP, Gas Natural distributes natural gas in the capital of Colombia, Santa Fé de Bogotá, as well as, after the
acquisition of Gasoriente, in the eastern region of Colombia. Additionally, in 1998 a consortium in which Gas Natural participates obtained a concession to distribute natural gas in the
Cundi-Boyacensean area, located northeast of Bogotá. In 2003, Gas Natural sold in Colombia approximately 0.72 billion cubic meters of natural gas to 1.4 million customers.

The
agreement signed with Iberdrola increased Gas Natural's interest in Gas Natural ESP to 59.1% from 44.3%. See Section 2.2.4.1 "Natural GasBrazil"
above.



In March 1998, Gas Natural México was awarded a concession to distribute natural gas in Monterrey, one of the largest consumers of natural
gas in Latin America with a total population of more than six million inhabitants. In addition to natural gas distribution in Monterrey, Gas Natural México currently distributes natural
gas in the cities of Toluca, Nuevo Laredo and Saltillo. In 1998, Gas Natural México obtained the concession for distribution of natural gas in the state of Guanajuato, which has a
population of more than two million people. In December 1999, Gas Natural México was awarded the concession for the distribution of natural gas in the El Bajío
Norte region which includes the states of Aguascalientes, Zacatecas and San Luis de Potosí, with a combined population of about two million people. With the acquisition of Metrogas in
2000, Gas Natural México now distributes gas in Mexico City. In 2003, Gas Natural México sold approximately 1.39 billion cubic meters of natural gas to
1.0 million customers, compared to 1.24 billion cubic meters of natural gas to 0.8 million customers in 2002.

The
agreement signed with Iberdrola reduced Gas Natural's interest in Gas Natural México to 86.75% from 100%. See Section 2.2.4.1 "Natural
GasBrazil" above.

In
February 2004, the Mexican authorities awarded Repsol YPF a site for the construction of a regasification plant in the port of Lázaro Cárdenas,
located on the Pacific Coast of Mexico. The initial capacity of this plant will be approximately 4 billion cubic meters per year, with a potential of expanding the capacity to 10 billion
per year. The estimated investment in this plant amounts to US$350 million and Repsol YPF expects this plant to become operational in 2008.



In May 2002, Repsol YPF sold 23% of Gas Natural SDG, S.A. for approximately €2,008 million, representing capital gains of
approximately €1,097 million. After the sale, Repsol YPF had a 24.04%

47

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interest
in Gas Natural. Gas Natural is Spain's largest natural gas distributor in terms of revenues and volume.

Gas
Natural's main activity is the distribution of natural gas to the residential and commercial sector as well as the industrial and electricity sectors. It supplies natural gas to
Madrid and Barcelona and, through its holdings in 10 regional distributors, to nearly all of Spain. Repsol YPF estimates that Gas Natural has an approximate 65% market share of the Spanish market.

On
May 16, 2002, in connection with the sale of 23% of Gas Natural, Repsol YPF and La Caixa d'Estalvis i Pensions de Barcelona amended their January 11, 2000 shareholders'
agreement with respect to Gas Natural through the execution of a Novation Agreement, further amended through the execution of two Addenda to the Novation Agreement, dated December 16, 2002 and
June 20, 2003. The most significant aspects of these agreements with La Caixa are the following:



These
new agreements will remain effective for as long as both parties hold a minimum participation in Gas Natural of 15%. In March 2004, Repsol YPF increased its holding in Gas
Natural to 30.847%.

As
a result of the original shareholder's agreement, Repsol YPF consolidated the results of Gas Natural with its own since January 1, 2000. As of the end of May 2002, Gas
Natural is accounted for under the proportional integration method. Repsol YPF believes that the agreements with Gas Natural will result in increased flexibility for Repsol YPF to integrate its
operations with those of Gas Natural, and thus represents an important step in Repsol YPF's strategy of integrating the gas-electricity chain and strengthening its financial situation.

Enagas
owns most of the gas transportation and storage infrastructure in Spain. In June 2002, pursuant to the limitations on ownership of Enagas imposed by Royal Decree Law
6/2000, limiting the

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participation
of any one group to 35%, Gas Natural sold 59.1% of Enagas in a secondary public offering for approximately €917 million (thereby reducing its interest in Enagas to
40.9%) and granted the underwriters of the institutional tranche of the offering the right to buy the additional 5.9% that made up the 65% interest that must be sold (a "green shoe" option). Repsol
YPF's share in the sale proceeds amounted to approximately €221 million, representing capital gains of approximately €97 million. Gas Natural's interest
in Enagas as of April 5, 2004 was 34.99%. Pursuant to Law 62/2003, no person may own, directly or indirectly, more than 5% of Enagas' capital stock. The law imposes a period of up to three
years to dispose of such shares. See Section 2.3.1.3 "Regulation of the Petroleum IndustrySpainNatural Gas System".

Enagas'
infrastructure system in Spain consists principally of three coastal terminals for the receipt, storage and regasification of liquid natural gas, a network of
high-pressure pipelines for bulk transmission of gas and low-pressure mains for local gas distribution, and two underground gas storage facilities. The
LACAL/Laq-Calahorra and Maghreb-Europe's pipelines link gas fields in Norway and Algeria with the transmission network of Enagas.

In
2003, Gas Natural sold approximately 18.87 billion cubic meters of natural gas to 4.5 million customers in Spain, compared to 18.52 billion cubic meters to
4.2 million customers in 2002, and 16.92 billion cubic meters to 3.9 million customers in 2001.

Gas
Natural purchases its gas supplies mainly through take-or-pay purchase contracts for LNG with producers in Algeria, Libya, Trinidad and Tobago, Nigeria and
the Middle East, and also through purchases of natural gas from Algerian, Norwegian and Spanish fields.

Gas
Natural is a party to a 25-year contract to purchase natural gas from Sonatrach, the Algerian state oil and gas company, at prices related to market prices in amounts
ranging from 3.2 billion cubic meters in 1996 to 6.0 billion cubic meters per annum from 2000 through 2020, principally on a take-or-pay basis. Gas Natural has
also entered into a long-term contract with a Norwegian company for the supply of piped gas from the North Sea fields of Troll via Belgium and France through the Lacq-Calahorra
pipeline. This contract expires in 2030.

Gas
Natural has also entered into long-term contracts to acquire LNG from Nigeria, Trinidad and Tobago and the Middle East.

Gas
Natural owns, through a 100% interest in SAGANE, a 72.6% interest in Europe-Maghreb Pipeline Ltd. (EMPL), which owns the exclusive right to operate the section of the
Maghreb-Europe gas pipeline in Morocco and as well as the section under the Straits of Gibraltar connecting the Algerian gas wells in Hassi R'Mel with the Spanish and European transmission systems.
Transgas, a Portuguese gas distributor which uses part of the capacity of the Maghreb-Europe Pipeline, holds the remaining 27.4% of EMPL.

Pursuant
to Royal Decree Law 6/2000, 25% of the natural gas supplied by Sonatrach was allocated for a period of three years (2001-2003) to natural gas commercializers for
resale to consumers in the liberalized market. The remaining 75% was allocated to Enagas for its supply to distributors that resell this natural gas to consumers at regulated tariffs. After this
three-year period, the contract has been assigned on a preferential basis to Enagas, which supplies this natural gas first to consumers at regulated tariffs and any remainder is then sold
in the open market. See Section 2.3.1.3 "Regulation of the Petroleum IndustrySpainNatural Gas System."

In
connection with the Sonatrach natural gas purchase contract, EMPL committed to construct, finance and operate the Maghreb-Europe Pipeline, which extends 540 kilometers in Morocco and
45 kilometers under the Straits of Gibraltar to connect with the Spanish natural gas pipeline system. The 48-inch pipeline with an initial capacity of nine billion cubic meters per year
was completed in 1996. The capacity of this pipeline is currently being increased to approximately 12 billion cubic meters per year. This pipeline constitutes a significant element in Repsol
YPF's natural gas supply strategy, since it

49

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secures
a significant supply of gas at reduced transportation costs. At the European level, the pipeline represents an element of strategic importance, since it will help to strengthen the
diversification of energy supplies for the entire continent. The Maghreb-Europe Pipeline has allowed for a substantial increase in deliveries from Algeria. However, the increase in importance of
Algeria as a supplier country is expected to be reduced over time as a result of Repsol YPF's international supply diversification policy.



Repsol YPF holds a 20% interest in Atlantic LNG, a joint venture with, among others, BP and BG plc. Atlantic LNG is based in Trinidad and Tobago and operates a
liquefied natural gas plant at Point Fortin, Trinidad. This plant commenced production activities in April 1999. Natural gas for the plant is supplied from offshore fields discovered by BP in
Trinidad and Tobago. The plant has annual production capacity of approximately three million tonnes of natural gas. Gas Natural has entered into a contract with Atlantic LNG to purchase, over a term
of 20 years renewable for an additional five
years, at a purchase price to be determined by a formula based on market prices, 40% of Atlantic LNG's liquefied natural gas production, which Gas Natural will sell in Spain.

In
the first quarter of 2000, Atlantic LNG received approval from the Trinidad and Tobago government to expand operations, including installation of two additional gas liquefaction
trains in which Repsol YPF holds a 25% stake. One of these trains started operations in 2002 and the other was completed in April 2003. These two new facilities have a combined installed
production capacity of approximately 9 billion cubic meters per year, of which Repsol YPF has agreed to sell approximately 2.7 billion cubic meters per year pursuant to
long-term gas contracts. These two facilities have increased Atlantic LNG's total annual LNG output to approximately 13 billion cubic meters per year. The cost of building the two
new trains was US$1.1 billion.

A
fourth train, with an estimated installed production capacity of 6.5 billion cubic meters per year, is currently being designed. Repsol YPF expects to complete the construction
of this fourth train by the beginning of 2006 at an estimated cost of US$1.2 billion.

Repsol
YPF believes that one of the crucial advantages of the project in Trinidad and Tobago is its geographic location, which permits the supply under advantageous economic conditions
of markets such as the United States, the Caribbean and Europe, the latter through swap contracts with suppliers. Repsol YPF believes this will enable it to take advantages of price opportunities in
the American market and to reduce transport costs, while satisfying the needs of the Spanish market from other sources.



Repsol YPF leases three time charter tankers with a total capacity of 416,500 cubic meters for shipping LNG, two of which have been delivered and are in service
and the third, which is under construction, is scheduled for completion and to be delivered and placed into service in 2004. In addition, Gas Natural leases two-time charter tankers for
shipping LNG with a total capacity of 276,000 cubic meters, both of which have been delivered and are in service.



In September 2003, Repsol YPF delivered to the Norwegian company Statoil its first shipment of liquefied natural gas from Atlantic LNG's third train in
Trinidad and Tobago, destined for the Cove Point regasification plant on the East Coast of the United States. This first shipment consisted of 135,000 cubic meters of LNG and is part of the
2.7 billion cubic meters of gas per year that Repsol YPF holds in trains two and three of Atlantic LNG, in which it has a 25% interest.

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In
the fourth quarter of 2003, Repsol YPF and Shell Western LNG Ltd. signed a contract to supply LNG (providing up to 2 billion cubic meters of LNG until 2005) from
Trinidad and Tobago to the Cove Point regasification plant on the East Coast of the United States.

LNG
from Trinidad and Tobago currently is the only source in the Atlantic Basin capable of meeting the quality specifications of all LNG regasification plants on the East Coast of the
United States, including Cove Point.

In
2003, Repsol YPF sold approximately 2.0 billion cubic meters of LNG in the U.S. and Caribbean markets.



In October 2003, Gas Natural purchased Enron's assets in EcoEléctrica. These assets, valued at US$179 million, include 47.5% of
EcoEléctrica and 50% of the voting rights in this company, exclusive natural gas supply rights to the plant as well as a fuels operating and management agreement. This plant has a 540MW
combined-cycle generation plant and a regasification plant with a regasification capacity of 160,000 cubic meters per hour.

Repsol
YPF believes that this acquisition represents an important step towards the development of trading operations in the Atlantic basin, providing Gas Natural with an important
competitive advantage to carry out the supply of natural gas in Puerto Rico jointly with Repsol YPF, with which it already has an agreement.



In January 2004, Gas Natural purchased Grupo Brancato, the first private operator of gas on the island of Sicily. This transaction marks the entrance of
Gas Natural in the gas distribution market in Italy.

Grupo
Brancato consists of three distributors, one marketing company and two service companies, with a presence in 73 Sicilian municipalities and 3 municipalities in the Abruzzo region.
These companies have 93,000 customers.



Argentina.Repsol YPF developed Mega, a project to increase its ability to separate liquid petroleum products from natural
gas, and expects to develop transport and distribution networks for these products. Mega allows Repsol YPF, through the fractioning of gas liquid, to increase production at the Loma La Lata gas field
by approximately 5.0 million cubic meters per day.

YPF
owns 38% of Mega, while Petrobras and Dow Chemical have a 34% and 28% stake, respectively.

Mega
includes:



51

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Mega
required an investment of approximately US$715 million and commenced operations at the beginning of 2001. Mega's maximum annual production capacity is 1.35 million
tonnes of gasoline, LPG and ethane. Repsol YPF is Mega's main supplier of natural gas. The fractioning plant production is used in the petrochemical operations of PBB Polisur, a 28% affiliate of
Repsol YPF, and is also exported by tanker to Brazil.



Spain.In January 1998, pursuant to the terms of an Industrial Agreement signed in 1997, Repsol YPF and Iberdrola, a
Spanish electricity company, committed to form PIESA for the development of three co-generation facilities in Tarragona, La Coruña and Gajano (Santander), with a total
capacity of 175 MW. In 2000, another co-generation facility, with 90 MW of capacity, started operations at the petrochemical facilities in Tarragona. The total capacity of these projects,
added to the 330 MW already in existence at the refineries and petrochemical centers of Repsol YPF in Spain, brought total capacity to 595 MW. Construction of the Tarragona plant was completed during
2000, while the La Coruña plant and the Gajano plant were completed in 2001.

In
2003, Repsol YPF acquired Iberdrola's 50% stake in PIESA, and now holds 100% of PIESA.

In
April 1998, Repsol YPF jointly with Amoco Power Resources Holding II Ltd. (Amoco Power), Iberdrola and Ente Vasco de Energía (EVE) established two new
companies, Bahía de Bizkaia Gas, S.L. (BBG) and Bahía de Bizkaia Electricidad, S.L. (BBE), in each of which Repsol YPF has a 25% stake, to build a regasification facility
and 800 MW combined cycle plant (CCGT) in the port of Bilbao. During 1998, the two companies concluded their feasibility studies and began the engineering design for the two facilities. In 2000, the
procurement, engineering and construction contracts were awarded and construction began. At the end of 2002, BBE had completed the construction of the combined
cycle plant, which is currently in operation. At the end of 2003, BBG had completed the construction of the regasification facility which now is in operation.

In
October 1998, Gas Natural and Endesa, S.A., a Spanish electricity company, reached a commercial agreement whereby Gas Natural will supply the natural gas required by Endesa for
the development of its program for the construction of combined cycle power stations. In December 1999, both companies signed the contracts for the construction of four combined cycles, each
with a capacity of 400 MW. Two of these facilities are located in San Roque (Cádiz) and the other two are located in Sant Adriá del Besós (Barcelona). The
San Roque and Sant Adriá del Besós facilities started operations in March 2002 and August 2002, respectively, and each of Gas Natural and Endesa own one of
the combined cycle power stations at the two locations.

In
1999, Repsol YPF and BP reached two agreements under their June 1998 strategic alliance. The first agreement provides for the sale of up to 5 billion cubic meters of LNG
from Trinidad and Tobago to Spain. The second agreement establishes the basis for the development of new power generation projects in Spain using natural gas. In April 2003, Repsol YPF and BP
entered into an agreement for the sale of a 1,200 MW combined cycle power plant to Gas Natural. Repsol YPF and Gas Natural simultaneously entered into an agreement for the supply of 1.6 billion
cubic meters of gas per year over a period of 20 years. Construction of this plant began in 2003 and commercial operations are expected to start by the beginning of 2006, with an estimated
total investment of €600 million.

Argentina-Generation.Repsol YPF participates in four power stations with an aggregate installed capacity of 1,685 MW:



52

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In
2003, these plants generated altogether approximately 7,624 GWh.

Repsol
YPF also operates power plants, supplied with natural gas produced by Repsol YPF, which produce power for use by Repsol YPF in other business units:





Repsol
YPF's operations are subject to environmental protection laws and regulations of the European Union, Spain and its autonomous communities, Argentina and other countries in which
Repsol YPF's operations are located. These laws and regulations, which tend to become more stringent over time, address the general impact of industrial operations on the environment, including
emissions into the air and water, the disposal or remediation of soil or water contaminated with hazardous or toxic waste, fuel specifications to address air emissions and the effect of the
environment on health and safety. We have made and will continue to make expenditures to comply with these laws and regulations. Compliance with more stringent laws or regulations, as well as more
vigorous enforcement policies of regulatory agencies, could in the future require additional expenditures by Repsol YPF for the installation and operation of systems and equipment for remedial
measures and could affect Repsol YPF's operations generally. In addition, violations of these laws and regulations may result in the imposition of administrative or criminal fines or penalties or may
lead to personal injury claims or other tort liabilities.

Environmental
factors are an important consideration in planning, designing and operating all Repsol YPF facilities. To advance such interests, in 1996 Repsol YPF created an
Environmental Management System (EMS) to ensure that Repsol YPF complies with all pertinent environmental principles. An Environmental Committee, formed by top management representatives from the
operating areas, the Corporate Director for Shared Services and other Corporate Directors, formulates Repsol YPF's environmental policy and coordinates its implementation among the operating areas.
Under the EMS,
the operating units must obtain an ISO 14001 Certification for their environmental management systems. At December 31, 2003, 8 refineries, 12 chemical plants, 19 Exploration and Production
operations, 18 logistic terminals, , 15 lubricants, asphalts and specialties factories and its corresponding distribution system, 20 marine supply facilities, 104 service stations, 8 LPG factories and
one underground gas storage facility covering almost all major industrial sites of Repsol YPF, were ISO 14001 certified.

Each
of Repsol YPF's operating units conduct significant programs to ensure that their operations are carried out in an environmentally acceptable manner. In 2003, 2002 and 2001, Repsol
YPF spent €79.2 million, €74.8 million and €113 million, respectively, on environmental programs that included improving effluent
treatment equipment, increasing the capacity and efficiency of sulphur recovery units at Repsol YPF's refineries, energy saving and efficiency, reducing air emissions of pollutants from processing
units, increasing the injection of produced water in upstream operations and reducing the release of volatile organic compounds during the storage and delivery of gasoline for motor vehicles from
terminal to service stations. Because many environmental costs are inextricably intertwined with general operating costs at our facilities, some of our environmental and cost estimates are developed

53

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using
the American Petroleum Institute guidelines, adapted to the characteristics and technical criteria of Repsol YPF.

Some
of the most relevant issues that could affect Repsol YPF's operations in the future relate to climate change, environmental quality of products and the Integrated Pollution
Prevention and Control IPPC European Directive 96/61/EC. Regarding climate change issues, Repsol YPF's operations worldwide emitted 21.5 million tonnes of CO2 equivalent in 2003. Spain is the
only country in which Repsol YPF has significant operations which has a greenhouse gas emissions cap set by the Kyoto Protocol. In Spain, Repsol YPF's refineries and cogeneration units with an
installed capacity of greater than 20 MW are also affected by the European CO2 Emission Trading Directive (2003/803/CE). Although there are still many regulatory uncertainties, Repsol YPF is
developing a plan to address the requirements of the Protocol and the Directive. The principal elements of this plan are the following:



The
economic impact of the Emission Trading Directive 2003/803/CE on Repsol YPF cannot be estimated until the Spanish National Allocation Plan is approved and the allocation to
individual installations and plants of the Repsol YPF Group is established. In addition, the Spanish National Allocation Plan will need to be approved by the European Commission, which is scheduled to
occur in 2004.

In
2003, Repsol YPF continued to make investments in order to comply with the new specifications for gasoline and gas oil that resulted from Directive 2003/17/CE (which came into force
in Spain on December 15, 2003 pursuant to Royal Decree 1700/2003) and Resolution SE 222/01 in Argentina, which is expected to come into force in 2006. Repsol YPF invested
€160.7 million in 2003, improving and constructing new units in its refineries in order to comply with European Union fuel specifications. We are unable to estimate at this time
the costs of improving and constructing new units at our refineries in Argentina, since the Argentinian specifications have not been finalized, but those costs could be material to our operations.

As
for the 96/61/CE IPPC Directive, transposed into Spanish law by law 16/2002, Repsol YPF also intends to take any actions in the industrial sites covered or affected by the Directive.
While we cannot at this time estimate the total costs Repsol YPF will incur to comply with the IPPC Directive, the actions required to be taken are extensive and additional expenditures may be
required.

United States.Laws and regulations relating to health and environmental quality in the United States affect nearly all of
YPF Holdings operations in the United States. These laws and regulations set various standards regulating certain aspects of health and environmental quality, provide for penalties and other
liabilities for the violation of such standards and impose, in certain circumstances, remedial obligations.

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YPF
Holdings believes that its policies and procedures in the area of pollution control, product safety and occupational health are adequate to prevent unreasonable risk of environmental
and other damage, and of resulting financial liability, in connection with its business. Some risk of environmental and other damage is, however, inherent in particular operations and, as discussed
below, Maxus Energy Corporation ("Maxus") and Tierra Solutions, Inc. ("Tierra"), two subsidiaries of YPF Holdings, have certain potential liabilities associated with operations of Maxus' former
chemical subsidiary, Diamond Shamrock Chemicals Company ("Chemicals"). YPF Holdings cannot predict what environmental legislation or regulations will be enacted in the future or how existing or future
laws or regulations will be administered or enforced. Compliance with more stringent laws or regulations, as well as more vigorous enforcement policies of the regulatory agencies, could in the future
require material expenditures by YPF Holdings for the installation and operation of systems and equipment for remedial measures and other items. Also, certain laws allow governmental authorities to
recover natural resource damages from responsible parties and ordering the implementation of interim remedies to abate an imminent and substantial endangerment to the environment. Potential
expenditures for any such actions cannot be reasonably estimated.

In
connection with the sale of Chemicals, to a subsidiary of Occidental Petroleum Corporation ("Occidental") in 1986, Maxus agreed to indemnify Chemicals and Occidental from and against
certain liabilities relating to the business or activities of Chemicals prior to the September 4, 1986 closing date (the "Closing Date"), including certain environmental liabilities relating to
certain chemical plants and waste disposal sites used by Chemicals prior to the Closing Date.

In
addition, under the agreement pursuant to which Maxus sold Chemicals to Occidental, Maxus is obligated to indemnify Chemicals and Occidental for 50% of certain environmental costs
incurred on projects involving remedial activities relating to chemical plant sites or other property used in the conduct of the business of Chemicals as of the Closing Date and for any period of time
following the Closing Date which relate to, result from or arise out of conditions, events or circumstances discovered by Chemicals and as to which Chemicals provided written notice prior to
September 4, 1996, irrespective of when Chemicals incurs and gives notice of such costs, with Maxus' aggregate exposure for this cost sharing being limited to US$75 million. Henkel
Corporation was assigned certain of Chemicals' and Occidental's rights and obligations under such indemnity. The total expended by the Company under this cost sharing arrangement was approximately
US$64.2 million as of December 31, 2003. The remaining portion of this cost sharing arrangement has been reserved.

Tierra
has agreed to assume essentially all of Maxus' aforesaid indemnity obligations to Occidental in respect of Chemicals.

At
December 31, 2003, reserves for the environmental contingencies related to the liabilities assumed in connection with the sale of Chemicals totaled approximately
US$66.3 million. YPF Holdings believes it has adequately reserved for all environmental contingencies, which are probable and can be reasonably estimated; however, changes in circumstances
could result in changes, including additions, to such reserves in the future.

See
"6.2 Legal Proceedings" for a discussion relating to certain legal proceedings and regulatory developments in respect of certain plant sites of Repsol YPF and its affiliates and
third party sites.



In
line with industry practice, Repsol YPF insures its assets and activities worldwide. Among the risks insured are damage to property, consequential interruptions in its business as
well as civil liability to third parties arising out of Repsol YPF's operations. Repsol YPF's insurance policies also include indemnification limits and deductibles. Repsol YPF considers its level of
insurance coverage to be, in general, appropriate for the risks inherent in its business.

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Repsol YPF is subject to regulations relating to the petroleum industry in Spain, Argentina and each country in which it operates.



Spain
currently has legislation to liberalize the oil industry, the most recent manifestation of which is Hydrocarbons Sector Law 34/1998, of October 7, which has been
supplemented by other provisions and implemented through numerous royal decrees and ministerial orders.

The
Law seeks to provide integrated regulations for the vertically integrated oil industry, which includes research and exploitation of deposits, refining, transport, storage and
distribution of crude oil or derivative products thereof, through the acquisition, production, transport, distribution and sale of gas fuels through pipelines.

Law
34/1998 establishes the criteria for allocating powers among the Government and the Central and the Regional Administrations, starting with considering the hydrocarbons market as
unique and global, and turning the latter into participants in the most general aspects of planning and ordering the sector.

The
National Energy Commission is the public agency attached to the Ministry of the Economy that is in charge of ensuring effective competition in the electric market and in both the
liquid and gaseous hydrocarbons markets, as well as the objectivity and transparency of its functioning to the benefit of all market participants, including consumers.

It
acts as a consultative body of the Administration and participates in the energy planning process and in the preparation of general rules that affect the energy markets. It also acts
as an arbitration panel in conflicts that arise among participants in the hydrocarbon sector, in particular, conflicts regarding contracts that grant third parties access to the transportation and
distribution networks.



Hydrocarbon
deposits and underground storages existing on Spanish territory and in the territorial marine subsoil and ocean bottoms which are under Spanish sovereignty are considered
public properties.

All
foreign and domestic persons may conduct exploration, research and exploitation activities in the hydrocarbon sector so long as any such person obtains the required authorizations,
permits and/or concessions, which will be granted only to those persons possessing the requisite technical and financial resources to perform such activities. Law 34/1998 and the rules and regulations
promulgated thereunder require the process of granting authorizations, permits and concessions to be objective, transparent and nondiscriminatory.

The
underground storage facility regime and which entities can and/or will perform the role of the "operators" are regulated by Law 34/1998.



Crude oil refining activities and the transportation, storage, distribution and sale of petroleum derivatives (including liquid petroleum gas) are liberalized,
although the construction and use of the facilities at which such activities are carried out are subject to prior governmental authorization.

Petroleum
derivative prices are liberalized, with the exception of liquid petroleum gas, which is subject, in most cases, to price caps.

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The
construction and operation of refining facilities, as well as the construction and operation of petroleum product transportation and storage facilities that provide services to
wholesale operators, are subject to prior governmental authorization.

Wholesale
operators that are not owned by refining companies or companies majority-owned by refining companies are subject to prior governmental authorization. The authorizations are
granted only to those operators possessing the requisite legal, technical and financial resources to perform such activities as well as guaranteeing certain minimum safety stocks.

Retail
operator activities are liberalized, although the construction and use of the facilities at which such operations are conducted are subject to prior governmental authorization.

Exclusive
supply agreements entered into by wholesale operators and owners of vehicle supply facilities may be agreed on a firm sales or commission basis.

Third
parties may freely access transportation and storage facilities, such as CLH's facilities, on conditions agreed on an objective, transparent and nondiscriminatory basis. The
Spanish government has the discretion to establish access tolls for mainland territories and for those areas of the Spanish territory where alternative transport or storage facilities do not exist or
are insufficient. As of the date of this annual report, the Spanish government has not exercised this discretion.

CLH Property.Pursuant to Royal Decree Law 6/2000, no person may hold, directly or indirectly, ownership of more than
25 percent of the capital stock of Compañía Logística de Hidrocarburos CLH S.A. Royal Decree Law 6/2000 further provides that the aggregate direct
or indirect ownership interest in CLH of entities with refining capacity in Spain may not exceed 45 per cent of CLH's capital (See Section 2.2.2.2. "Transport of Crude Oil and Distribution of
Petroleum Products"). The political and voting rights of stock held in excess of 25 percent interest are suspended. In 2002 and 2003 Repsol YPF and other entities with refining capacity in
Spain sold part of their interest in CLH, and Repsol YPF's ownership interest in CLH no longer exceeds the 25 percent limit. The impact on the Groups' 2002 operating income resulting from the
reduction of Repsol YPF's ownership in CLH, disclosed in Item 3.5.2 "Results of Operations by Business SegmentRefining and Marketing", amounted to €173 million.

Technical Specifications of Biofuels.Royal Decree 1700/2003, effective as of December 25, 2003, established the
specifications for gasoline, gas-oil, fuel-oil and liquid petroleum gas, and the use of biocarbons, through the implementation of two EC Directives into Spanish law.

The
aforementioned Royal Decree establishes the new technical specifications for petroleum derivatives and, in particular, the maximum sulfur content from January 1, 2005 and
January 1, 2009 in gasoline and automotive diesel (Class A), and from January 1, 2008 for agricultural and maritime diesel (Class B) and heating fuel oil (Class C).
In addition, the technical specifications for biocarbons that result from the addition of ethanol into gasoline and biofuels into automotive diesel were also established.

Service Stations.Royal Decree-Law 6/2000 established that wholesale operators of petroleum products in Spain,
whose distribution network consists of more than 30% of the service stations in Spain, may not increase the number of its or their service stations until June 25, 2005.

In
accordance with Royal Decree 6/2000 of June 23, 2000, Repsol YPF cannot increase, for a period of five years, the number of retail sales points that it held in Spain at the
time of the Decree, that is 3,741. In response to this limitation on the total number of sales points, Repsol YPF has implemented a strategy by which those service stations which are less profitable
and with lower sales volumes are progressively replaced with more profitable ones. In fact, as can be seen from the table

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below,
the decrease in the number of service stations has not had an adverse effect on volumes sold by the Group:

2003

2002

2001No. of service stations (Spain)

3,704

3,653

3,611Sales (in thousands of cubic meters)

11,953

11,978

12,389


Repsol
YPF did not have to record any impairment as a result of this change.

In
addition, this Royal Decree provided that large commercial establishments, such as shopping complexes, constructed after June 25, 2000 which are classified as "large commercial
centers" under Spanish law, must include at least one facility for supply of petroleum products for vehicles. These facilities may not preferentially enter into exclusive supply contracts with a
single wholesale operator of petroleum products, such as Repsol YPF.



Wholesale operators of LPG must apply for a permit to operate, which will be granted only to those persons who (i) possess the requisite legal, technical
and financial resources to perform such operations, (ii) guarantee certain minimum safety stocks and (iii) provide technical assistance services available to end users and retail
distributors.

Retail
distributors of bulk LPG must also apply for a permit to operate, which will be granted only to those persons (i) that possess the requisite legal, technical and financial
resources to perform such operations and (ii) whose facilities meet the relevant safety conditions. Such permits are unnecessary for persons wishing to supply bulk liquid gas to vehicles or
fixed distribution facilities.

Retail
distributors of bottled LPG are liberalized, although the facilities at which such operations are conducted must meet certain minimum safety conditions.

Law
34/1998 prohibits exclusive supply agreements between operators and distributors, except such as are agreed between distributors and agents that form part of their distribution
network, although to qualify for this exemption these networks must guarantee home delivery of bottled liquid gas.

To
the extent that the competitive conditions of the bottled and pipelined LPG distribution market are deemed inadequate, the Spanish government may establish maximum prices for sales to
the public through a formula determined by regulation. It is not expected that deregulation of LPG prices will occur so long as Repsol Butano continues to have a significant market share. Since 1998
the prices of bulk LPG and LPG sold in bottles smaller than 8 kilograms have been liberalized.

Bottled
LPG prices in containers with a capacity of 8 kilograms or more have been subject to a system of price controls since November 1993. In October 2000, the method for
determining bottled LPG maximum prices was changed. However, this change did not have any effect on the Group's operations, assets or future cash flows, and no impairment resulted from such change.

Currently,
the maximum pretax retail price for LPG bottled in containers with a capacity of 8 kilograms or more is determined in April and October each year using the formula contained
in Order ECO/640/2002, of March 22, which determination takes into account average international prices over the 12 prior months plus mark-up costs. The aforementioned Order
established the maximum mark-up costs at 0.317624 euros/kilogram, authorizing the Ministry of the Economy to update that amount annually in light of foreseeable changes in the sector's
costs and productivity.

Likewise,
the supply of LPG through pipelines to end users and the supply of bulk LPG to LPG distribution companies through pipelines is subject to maximum prices established by the
Spanish government pursuant to a Ministerial Order of November 5, 1993. The maximum prices are set each month based upon a formula that takes into account the cost of raw materials and freight
in

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international
markets in the month prior to the respective month of application, to which a mark-up cost is added. The amount of current mark-up costs was established by a
Ministerial Order of November 16, 1998 at 0.2854 euros/kilogram, and has not changed since then.



Law 34/1998 established the right of all consumers to a supply of petroleum derivatives in the national territory, under legally established conditions.

Wholesale
operators and companies that distribute fuel and petroleum-based fuel not purchased from regulated operators must maintain minimum safety stocks at a level appropriate for up
to 120 days of its annual sales volume, or 30 days for wholesale LPG distributors, as well as for merchants or consumers who do not purchase from authorized distributors.

Strategic
stock requirements were also established. Under legislation enacted in 1994,Corporación de Reservas
Estratégicas(CORES), a Spanish government corporation, was created by the Spanish government to establish, manage and maintain levels of strategic reserves of
crude oil and petroleum products.



Regulation of Activities and Agents Acting in the System.Law 34/1998 regulates the definitions of carrier, distributor and
commercializer, all of
whose activities are performed under the system of free competition.

Carriers
are legal persons who own LNG regasification facilities, transport or storage facilities.

Distributors
are legal persons who own distribution facilities, whose function is to supply natural gas through pipelines, as well as to build, maintain and operate the distribution
facilities designed to deliver natural gas to the points of consumption.

Commercializers
are companies that, with their access to third party facilities, purchase natural gas to sell it to consumers or to other commercializers.

The
system's Technical Manager is the carrier that owns most of the basic natural gas network facilities, and is responsible for the technical management of the basic network and the
secondary carrier network, guaranteeing the continuity and safety of the supply and appropriate coordination among access points, storage facilities, transportation and distribution. Enagas, S.A.
performs the role of Technical Manager of the system. Royal Decree-Law 6/2000 provided that no person or group of persons may own, directly or indirectly, more than 35% of the capital
stock of Enagas. In June 2002, Gas Natural sold 59.1% of Enagas in a secondary public offering. The impact on the Group's operating income was a reduction of
€23 million. See Section 3.5.4 "Results of Operations by Business SegmentGas and Electricity". Pursuant to Law 62/2003, no
one may own, directly or indirectly, more than 5% of the capital stock of Enagas, S.A. The voting rights and rights to set policy of stock held in excess of the 5% cap will be suspended.

Regasification,
storage, transportation and distribution activities are regulated activities, whose economic and operational regime must be in accordance with Law 34/1998. Companies that
perform these activities may not perform commercialization activities.

Commercialization
activities are liberalized (and therefore the economic regime is determined by participants). Companies dedicated to natural gas commercialization may not have
additional corporate objectives in the gas sector, and they may not perform regasification, storage, transport or distribution activities.

Natural
gas may be purchased by: a) carriers, for sale to other carriers or distributors; b) qualified consumers; and c) commercializers, for sale to qualified
consumers or to other commercializers.

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Persons
authorized to buy natural gas have a right to access regasification, storage, transportation and distribution facilities under nondiscriminatory, transparent and objective
conditions, subject to payment of a toll that is fixed by applicable regulation.

Since
January 1, 2003, all consumers, regardless of their level of consumption, are qualified consumers, and they may choose between buying natural gas from distributors in the
regulated market or from commercializers in the liberalized market.

The
construction, operation, modification and closing of basic network and carrier network facilities, as well as gas distribution facilities, require prior government authorizations,
similar to the authorizations required for commercialization activities.

When
Law 34/1998 took effect all concessions for activities included as part of the public service of fuel gas supply through pipelines were cancelled, and they were replaced with
government authorizations.

As
a result of this the reversion of facilities that the prior 1987 law stipulated was expressly cancelled.

With
respect to any natural gas distribution area under a concession, which under Law 34/1998 became an authorization, no new authorizations may be granted to build distribution
facilities for a period equivalent to the effective term of the original concession, although such period may not extend beyond January 1, 2005.

As
of January 1, 2003, no company or group of companies acting in the natural gas sector can collectively provide natural gas for consumption in Spain in an amount in excess of
70% of domestic consumption. The Spanish government is authorized to modify that percentage as a function of changes in the sector and the sector's business structure.

Price Regulation.Law 34/1998 distinguishes between regulated activities, whose economic and operational systems must be in
accordance with the Law, and commercialization activities, whose economic regime is determined by participants.

Under
the scope of Royal Decree 949/2001, which implemented criteria and principles related to compensation for regulated activities, the Ministry of the Economy has issued different
ministerial orders that establish the compensation for the various regulated activities, as well as tariffs, tolls and royalties payable in respect of the regulated activities of transportation and
distribution. The tariffs, tolls and royalties are the same throughout Spain and are considered to be ceilings.

The
maximum sales price for natural gas in the regulated market is based fundamentally on:



The
tolls and royalties for use of the regasification, storage, transportation and distribution facilities are fundamentally determined by:



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Currently,
the maximum sale price for natural gas in the regulated market, tolls and royalties related to third party access of natural gas facilities and compensation for regulated
activities are contained in three Ministerial Orders effective as of January 20, 2004.

Application of Gas from the Algeria Contract.In virtue of Royal Decree-Law 6/2000, 25% of the natural gas
corresponding to 2001, 2002 and 2003 coming from Algeria supplied through the Maghreb-Europe gas pipeline in virtue of the contract signed with Sonatrach, the Algerian state oil company, was assigned
to commercializer companies for sale in the liberalized market. The remaining 75% was assigned to Enagas, S.A., for sale to distributors for subsequent sale in the regulated market.

Starting
on January 1, 2004, the natural gas supplied pursuant to the contract with Sonatrach is applied preferentially to the regulated market.

Supply Guaranty.All consumers living in a geographic area that corresponds to the scope of any particular authorization have
the right to receive gas fuels supplied through pipelines under the conditions established in Law 34/1998.

In
order to ensure supply, Law 34/1998 established the obligation of maintaining minimum safety stocks for specified carriers, distributors and qualified consumers who make use of the
right of access to natural gas facilities and are not supplied by an authorized merchant.

Likewise,
Law 34/1998 required specified carriers to diversify their supplies when more than 60% comes from the same country.



European
Union Regulation 2790/1999 governing vertical restraints on competition came into force on January 1, 2000 and will be applicable until May 31, 2010.
Regulation 2790/1999 increases restrictions imposed on exclusivity agreements between, among others, petroleum product suppliers and petroleum product distributors operating in European Union
markets.

Prior
to the effectiveness of Regulation 2790/1999, under European Union law, exclusive supply agreements between suppliers and independently owned service stations which operated
as resellers in the market benefited from a block exemption from Section 81.1 of the European Community Constitutive Treaty which forbids anticompetitive agreements. This exemption was
applicable as long as the exclusivity arrangements did not contain certain "hard core" restrictions, such as resale price maintenance obligations, and did not exceed the time period of
10 years, except if the reseller operated from premises leased by the supplier. In this case, an exclusivity agreement could extend for up to the period of the underlying lease.

Repsol
YPF's exclusive supply agreements with independent retailers did not formally fall within the block-exemption regulation because the majority of these independent retailers work
with Repsol YPF on an agency basis on behalf of Repsol YPF. Therefore, they are not deemed to be resellers. To consider these contracts exempt from the prohibition of Section 81.1, Repsol YPF
relied on "ad hoc" "comfort letters" issued by the Competition Directorate General of the European Commission after that institution made an individual examination of the existing contracts and the
relevant market. Repsol YPF also relied on the application by analogy of the existing block exemption to Repsol YPF's contracts.

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Regulation 2790/1999
deprives suppliers, such as Repsol YPF, of the protection of the block exemption in the following cases:



Regulation 2790/1999
allowed exclusivity arrangements in place at May 31, 2000 to continue to be exempt from the new requirements until December 31, 2001. The
interpretative guidelines issued by the European Commission in October 2000 confirmed the validity of those contracts that by December 31, 2000 had a remaining term of no more than five
years.

In
order to obtain the maximum legal certainty under Regulation 2790/1999 with regard to its exclusivity arrangements, Repsol YPF initiated informal contacts with the Competition
Directorate General of the European Commission. Additionally, to better comply with the new EU Regulation, the duration of Repsol YPF's new contracts is limited to five years. With respect to the old
contracts that by December 31, 2000 will exceed the five-year time limit, Repsol YPF has informed its distributors of its decision to terminate these contracts before the end of
such period (whenever these old contracts reach five years in duration) and to ask for a proportional reimbursement of the investments made by the supplier.

Finally,
in order to obtain the maximum assurance under European Community Law, on December 20, 2001 all distribution contracts between Repsol YPF and the service stations were
presented to the EU Commission to be cleared, either by a declaration of compatibility with the Treaty of Rome or by their individual exemption according to Section 81.3 of that Treaty. The
Commission has not made any decision yet although we believe that our compliance with all requests made by the European Commission during its examination of these contacts will assist us in obtaining
clearance from the Commission.

On
September 1, 1999, the Service for the Defense of Competition (Servicio de Defensa de la Competencia) began a preliminary
inquiry into whether it should be permissible for suppliers to treat agents and resellers differently with respect to retail pricing agreements. Under Spanish law, suppliers may set retail prices to
be charged to consumers by agents, but may not determine the retail prices which resellers charge to consumers. Should the Service for the Defense of Competition consider that differential pricing
arrangements for resellers and agents are impermissible, the prohibition on determining retail pricing may be extended to Repsol YPF's agreements with its distributors if the Tribunal for the Defense
of Competition upholds that view.

During
the same process, on September 1, 1999, the Service for the Defense of Competition also began a preliminary inquiry into whether an exclusivity agreement between a
petroleum-products supplier and a distributor should be legally permissible for a period longer than five years where the distributor operates facilities leased by the supplier to the distributor and
the distributor has granted the supplier usufruct or surface rights on the premises. Repsol YPF believes that there are sound economic reasons, including those based on the investments made by
suppliers in distribution facilities, in favor of
permitting extended exclusivity arrangements between suppliers and distributors operating on premises leased to a distributor by a supplier.

The
Service for the Defense of Competition made an unfavorable assessment of the above mentioned issues, bringing an administrative proceeding before the Tribunal for the Defense of
Competition("Tribunal de Defensa de la Competencia"), which ruled against Repsol YPF on the first

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issue,
i.e. the agent/reseller controversy, but acquitted Repsol YPF of the other charge, i.e. the use of surface and usufruct rights as a means to avoid the time limit of five years. The Tribunal did
not consider those contracts unlawful under competition rules. Due to the infringement arising from the first issue, a fine of €3 million was imposed. Repsol YPF has appealed to
the administrative court whose ruling is still pending.

The
Tribunal for the Defense of Competition ruled against Repsol Butano S.A., Repsol YPF's subsidiary that sells bottled LPG, imposing a €1.5 million fine, as it
considered illegal some restrictions imposed by Repsol Butano on its distributors, such as after-contract non-competition clauses and prohibitions on the use of spare parts provided by
other companies. Although this ruling has been appealed, Repsol Butano decided to modify its contracts to reflect the Tribunal for the Defense of Competition's decision. The Service for the Defense of
Competition has issued a report supporting the granting of an individual authorization to this modified contract. Throughout this process, Repsol YPF continued to substitute its new contracts for the
old ones, which process was completed in 2003. Recently, the Tribunal for the Defense of Competition has denied the authorization to new contracts, because of its exclusivity. That resolution accepts
petitions before the Courts of Justice, and Repsol Butano, S.A. has announced that it is going to petition these Courts for a suspension of the resolution, maintaining in the meantime, the existing
relations with the agents, until such time that it obtains the corresponding judicial pronouncement.

The
European Commission has launched an extensive investigation into several markets related to tire manufacturing services. Towards the end of 2002, General Química S.A.,
Repsol YPF's subsidiary that produces rubber chemicals and rubber additives, was investigated, like many other companies in Europe and the United States, in the context of an anticartel probe. Around
the same time, Repsol YPF Lubricantes y Especialidades S.A., Repsol YPF's subsidiary that produces, among other products, asphalt manufacturing, was also investigated by the European Union in another
anticartel probe, together with other companies. On March 25, 2003, the European Commission visited several European producers under an investigation in the markets of hydrogen peroxide,
plastic softening agents, solvents and methacrylates. Repsol YPF was not among the companies that were investigated but has collaborated by providing the Commission, in December 2003, with
answers to its questions related to the acrylates market.

The
EU Commission has not yet confirmed whether either Repsol YPF or any of its affiliates will be subject to proceedings as a result of these investigations.



The
Argentine oil and gas industry is regulated by Law No. 17,319, referred to as the Hydrocarbons Law, which was adopted in 1967. The executive branch of the Argentine government
applies this law through the national Secretary of Energy. The regulatory framework of the Hydrocarbons Law was established on the assumption that the reservoirs of hydrocarbons would be national
properties and Yacimientos Petroliferos Fiscales Sociedad del Estado, YPF's predecessor, would lead the oil and gas industry and operate under a different framework than private companies. In 1992,
Law No. 24.145, referred to as the Privatization Law, privatized YPF and was designed to implement the transfer of ownership of reservoirs to the provinces, subject to the existing rights of
holders of exploration permits and production concessions. However, the transfer of property to the provinces has not been implemented, since an amendment to the Hydrocarbons Law has not been enacted.
In August 2003, executive Decree No. 546/03 transferred to the provinces the right to grant hydrocarbons exploitation and transportation concessions in certain locations designated as
"transfer areas" as well as in other areas designated by the competent provincial authorities.

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In
October 1994, the national constitution was amended. Article 124 establishes that natural resources existing within a province's territory are property of such province.
Article 75 of the national constitution allows Congress to enact laws to develop mineral resources existing within the national territory. The governments of the provinces where the mineral and
hydrocarbon reservoirs are located will be responsible for carrying out these laws. Legislators have submitted to Congress new drafts of the Hydrocarbons Law. These drafts establish the provinces'
ownership of the hydrocarbon reservoirs in accordance with Article 124. The enactment of the reforms is still pending and may take place during 2004.

On
January 6, 2002, the Argentine Congress enacted Law No. 25,561, the Public Emergency and Foreign Exchange System Reform Law, which represented a profound change of the
economic model effective as of that date, and rescinded the Convertibility Law No. 23,928, which had been in effect since 1991, and had pegged the peso to the dollar on a
one-to-one basis. In addition, Law No. 25,561 granted the executive branch of the Argentine government authority to enact all necessary regulations in order to overcome
the economic crisis in which the country was then immersed.

After
the enactment of the Public Emergency and Foreign Exchange System Reform Law, several other laws and regulations have been enacted. The following are the most significant measures
enacted to date in Argentina:



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The
Hydrocarbons Law establishes the basic legal framework for the regulation of oil and gas exploration and production in Argentina. The Hydrocarbons Law empowers the executive branch
to establish a national policy for development of Argentina's hydrocarbon reserves, with the principal purpose of satisfying domestic demand.

The
Hydrocarbons Law permits surface reconnaissance of territory not covered by exploration permits or production concessions, upon authorization of the Secretary of Energy and with
permission of the private property owner. Information gained as a result of surface reconnaissance must be provided to the Secretary of Energy. The Secretary of Energy may not disclose this
information for two years without permission of the party who conducted the reconnaissance, except in connection with the grant of exploration permits or production concessions.

Under
the Hydrocarbons Law, the national executive may grant exploration permits after submission of competitive bids. Permits granted to third parties in connection with the
deregulation and demonopolization process were granted in accordance with procedures specified in the Oil Deregulation Decrees, and permits covering areas in which YPF was operating at the date of the
Privatization Law were granted to YPF by such law. In 1991, the national executive established a program under the Hydrocarbons Law (known as the Argentina Plan) pursuant to which exploration permits
may be auctioned. The holder of an exploration permit has the exclusive right to perform the operations necessary or appropriate for the exploration of oil and gas within the area specified by the
permit. Each exploration permit may cover only unproved areas not to exceed 10,000 square kilometers (15,000 square kilometers offshore), and may have a term of up to 14 years (17 years
for offshore exploration). The 14-year term is divided into three basic terms and one extension term. At the expiration of each of the first two basic terms, the acreage covered by the
permit is reduced, at a minimum, to 50% of the remaining acreage covered by the permit. At the expiration of the three basic terms, the permit holder is required to revert all of the remaining acreage
to the Argentine government, unless the holder requests an extension term, in which case such grant is limited to 50% of the remaining acreage.

If
the holder of an exploration permit discovers commercially exploitable quantities of oil or gas, the holder may obtain an exclusive concession for the production and development of
this oil and gas. A production concession gives the holder the exclusive right to produce oil and gas from the area covered by the concession for a term of 25 years (plus, in certain cases, a
part of the unexpired portion of the underlying exploration permit). The term may be extended for an additional 10 years by application to the executive branch. A production concession also
confers on the holder the right to conduct all activities necessary or appropriate for the production of oil and gas, provided that such activities do not interfere with the activities of other
holders of exploration permits and production concessions. A production concession entitles the holder to obtain a transportation concession for the oil and gas produced. See Section 2.3.2.5
"Transportation".

Exploration
permits and production concessions require holders to carry out all necessary work to find or extract hydrocarbons, using appropriate techniques, and to make specified
investments. In addition, holders are required to:



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Holders
of production concessions, including YPF, also are required to pay royalties to the province where production occurs in the amount of 12% of the well-head price
(equal to the FOB price less transportation costs and certain other reductions) of crude oil produced and 12% of the value of the used volume of natural gas produced, based on the sales price, less
transportation, storage and treatment costs. Any oil and gas produced by the holder of an exploration permit prior to the grant of a production concession is subject to the payment of a 15% royalty.

Exploration
permits and production or transportation concessions will terminate upon any of the following events:



When
a production concession expires or terminates, all oil and gas wells, operating and maintenance equipment and facilities automatically revert to the Argentine government, without
payment to the holder of the concession.

The
Privatization Law granted YPF 24 exploration permits covering approximately 132,735 square kilometers and 50 production concessions covering approximately 32,560 square kilometers.
The Hydrocarbons Law limits the number and total area of exploration permits or production concessions that may be held by any one entity. YPF was exempted from such limit with regard to the
exploration permits and production concessions awarded to it by Law 24,145. The National Directorate of Economy of Hydrocarbons (Dirección Nacional de
Economía de los Hidrocarburos), applying a restrictive interpretation of Section 25 and 34 of Law 17,319, has objected to the award of new exploration
permits and production concessions in which YPF has a 100% interest. If such limit is applied in the future, it may affect YPF's ability to acquire 100% of new exploration permits and/or exploitation
concessions. As a consequence of the transfer of ownership of certain hydrocarbons areas to the provinces in accordance with Decree No. 1055/89 and Law 24,145, YPF participates in competitive
bidding rounds organized since 2000 by the provincial government of Neuquén for the award of contracts for the exploration of hydrocarbons.



Argentine
law restricts the ability of non-Argentine companies to own real estate, oil concessions or mineral rights located within, or with respect to areas defined as,
security zones (principally border areas). Prior approval of the Argentine government may be required:



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In
June 1992, Law No. 24,076, referred to as the Natural Gas Law, was passed providing for the privatization of Gas del Estado and the deregulation of the price of natural
gas. To effect the privatization of Gas del Estado, the five main trunk lines of the gas transmission system were divided into two systems principally on a geographical basis (the northern and the
southern trunk pipeline systems). This is designed to give both systems access to gas sources and to the main centers of demand in and around Buenos Aires. These systems were transferred into two new
transportation companies. The Gas del Estado distribution system was divided into eight regional distribution companies, including two distribution companies serving the greater Buenos Aires area.
Shares of each of the transportation and distribution companies were sold to consortiums of private bidders. Likewise, in 1997, a distribution license for the Provinces of Chaco, Formosa, Entre
Ríos, Corrientes and Misiones was granted to private bidders.

The
regulatory structure for the natural gas industry creates an open-access system, under which gas producers such as YPF will have open access to future available capacity
on transmission and distribution systems on a non-discriminatory basis.

New
cross-border gas pipelines have been built to interconnect Argentina, Chile, Brazil and Uruguay and producers such as YPF are currently exporting natural gas to the Chilean and
Brazilian markets. Exports of natural gas require prior approval by the Secretary of Energy. In 2001, Resolution No. 131/01 was passed by the Secretary of Energy to expedite the issuance of
authorizations for natural gas exports. Decree No. 689/02 established an exception to the public emergency laws and regulations, providing that the prices of long-term natural gas
sale agreements executed before the enactment of the Decree and denominated in US dollars, will not be converted into pesos (Ps.1 = US$1) when the natural gas is exported to third countries.

In
January 2004, executive decree No. 181/04 authorized the Secretary of Energy to negotiate with producers a pricing mechanism for natural gas supplied to industries and
electric generation companies. Domestic market prices at the retail market level were excluded from these negotiations. On April 2, 2004, the Secretary of Energy and gas producers subscribed an
agreement which was ratified by Resolution No. 208/04 issued by the Ministry of Federal Planning, Public Investment and Services. The aim of the agreement is the implementation of a scheme for
the normalization of the natural gas price. The main aspects of the agreement are: i) initially price adjustments are applied exclusively to gas supplied by producers to industrial users, new
direct consumers and electricity generators (to the extent that electricity is destined for the domestic market); ii) prices are adjusted as from May 10, 2004; and iii) the
Secretary of Energy shall implement in the future a progressive scheme for the normalization of the price of natural gas destined to the residential users.



The
Hydrocarbons Law permits the national executive to award 35-year concessions for the transportation of oil, gas and petroleum products following submission of competitive
bids. Holders of production concessions are entitled to receive a transportation concession for their production. The

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term
of a transportation concession may be extended for an additional 10-year term upon application to the executive branch. The holder of a transportation concession has the right to:



The
holder of a transportation concession is obligated to transport hydrocarbons for third parties on a non discriminatory basis for a fee. This obligation, however, applies to producers
of oil or gas only to the extent that the concession holder has surplus capacity available, and is expressly subordinated to the transportation requirements of the holder of the concession.
Transportation tariffs are subject to approval by the Secretary of Energy. Upon expiration of a transportation concession, the pipelines and related facilities automatically revert to the Argentine
government without payment to the holder. Gas pipelines and distribution systems sold in connection with the privatization of Gas del Estado are subject to a different regime under the Natural Gas
Law, under which concessions for transportation and distribution of natural gas also may be granted. The Privatization Law granted YPF a 35-year transportation concession with respect to
the pipelines operated by YPF at that time.



Crude
oil refining activities conducted by oil producers or others are subject to Argentine government registration requirements and safety and environmental regulations, as well as to
provincial environmental legislation and municipal health and safety inspections. Registration in the registry of oil companies maintained by the Secretary of Energy also is required to operate a
refinery in Argentina.
The refineries operated by Repsol YPF are so registered. Registration is granted on the basis of general financial and technical standards.



Under
the Hydrocarbons Law and the Oil Deregulation Decrees, holders of production concessions have the right to produce and own oil and gas and are allowed to dispose of such production
in the market without restriction. In 2002, Decree No. 867/02 declared a temporary emergency for the provision of hydrocarbons within Argentina for the period May through September 2002,
and authorized the Secretary of Energy to establish the volume of crude oil and LPG to be sold in the domestic market until September 30, 2002. Moreover, Resolutions 140/02 and 166/02 (both
derogated) established for the period June through September 2002 a percentage ceiling on crude oil exports.

In
March 2004, the Secretary of Energy issued resolution No. 265/04 adopting measures intended to ensure the adequate supply of natural gas to the domestic market and its
consequences on the electricity wholesale prices. Among the measures adopted were:



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In
March 2004, the Sub-Secretary of Fuels, pursuant to the authority given to it under resolution No. 265/04, issued regulation No. 27/04 establishing a
rationalization plan of gas exports and transportation capacity. Among other things, regulation No. 27/04 established a limit on natural gas exports authorizations, which, absent an express
authorization by the Sub-Secretary of Fuels, may not be granted for volumes exceeding exports registered during 2003. Based on the provisions of regulation 27/04, the Sub-Secretary of
Fuels has instructed YPF to temporarily suspend certain exports of natural gas and to re-direct such natural gas volumes to the internal market. YPF has invoked the occurrence of a Force Majeure event
under the corresponding natural gas purchase and sales agreements and some of the counter parts thereby have rejected such invocation.

In
June 2004, the Secretary of Energy issued resolution No. 659/04 removing the limit on natural gas exports authorizations (based on comparison of volumes to export in 2004 with
volumes exported in 2003) established by regulation 27/04. In addition, resolution 659/04 established a new program for the adequate supply of natural gas to the internal market.

At
present YPF, as well as private companies producing oil and gas under service contracts with YPF, following conversion of such contracts to concessions, may sell their production in
domestic or export markets, and refiners may obtain crude oil from suppliers within or outside Argentina.

The
Hydrocarbons Law authorizes the national executive to regulate the Argentine oil and gas markets and prohibits the export of crude oil during any period in which the national
executive finds domestic production to be insufficient to satisfy domestic demand. If the national executive restricts the export of oil and petroleum products or the free disposition of natural gas,
the Oil Deregulation Decrees provide that producers, refiners and exporters shall receive a price:



Resolution
No. 85/2003 of the Secretary of Energy ratified the agreement subscribed between crude oil producers including YPF, and refiners for the stability of the price of crude
oil, gasoline and gas oil. This agreement provides that during the first quarter of 2003, the crude oil forwarded to the refineries by producers shall be invoiced and paid based on a WTI crude oil
reference price of US$28.50 per barrel. The difference between this reference price and the actual WTI crude oil price, will be assigned
to an "adjustment of price account" and the producer will receive the difference between the reference price and the actual WTI price from the moment that the actual WTI price falls below the
reference price. The amounts assigned to the adjustment of price account will yield an annual interest rate equal to the higher of (i) LIBOR plus 2% or (ii) 8% per year. Crude oil sale
agreements effective or entered into between January and March 2003 were to incorporate an additional clause reflecting this mechanism. This clause will be reviewed on a monthly basis and may
be terminated by any party if (i) the peso exchange rate depreciates below Ps.3.65=US$1 (Banco de la Nación Argentina seller quotation), (ii) WTI crude oil prices exceed
US$35 per barrel for 10 consecutive quotation days, (iii) WTI crude oil prices fall below US$22 per barrel for 10 consecutive quotation days or (iv) taxes and/or export duties applicable
to oil producers are increased.

On
February 25, 2003 oil producers and refiners entered into a supplementary agreement to the agreement for the stability of the price of crude oil, gasoline and gas oil. The
parties to this supplementary agreement agreed to extend the agreement for the stability of the crude oil, gasoline and gas oil until March 31, 2003 and to fix a maximum WTI reference price of
US$36 per barrel in any agreement for the delivery of crude oil to the local market entered into between oil producers and refiners until March 31, 2003.

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Throughout
2003 and again in January 2004 oil producers and refiners extended the price stability agreement in respect of crude oil, gasoline and diesel. Moreover, the parties
agreed that the amounts assigned to the adjustment of price account will yield an annual interest rate equal to the higher of: (i) LIBOR plus 2% or (ii) 7% per year.

On
May 2004 a new agreement was adopted. This agreement establishes the application of a price calculation method for the determination of the price of the crude oil to be forwarded to
the refineries by producers as from May 2004. In order to determine the price, the agreement provides the application of two coefficients to the actual WTI price, depending on the quotation of the WTI
crude oil price, as follows: (i) 0.86% when the WTI crude oil price falls below US$36 per barrel, and (ii) 0.80% when the WTI crude oil price is or exceeds US$36 per barrel.

On
April 2002, the national government and the main oil companies, including YPF, reached an agreement to regulate a subsidy provided by the Argentine government to the public bus
transportation companies. This agreement, named "Convenio de Estabilidad de Suministro de Gas Oil" was approved by decree No. 652/02 and assured the transportation companies their necessary
supply of gas oil at a fixed price of Ps. 0.75 per liter from April 22, 2002 to July 31, 2002. Additionally, it established that the oil companies shall compensate for the difference
between the fixed price and the market price using the credit generated by such difference through compensation against the payments that the oil companies have to pay in relation to their oil exports
(custom duties). This agreement was extended
through August 31, 2002. Through a new price-stabilization agreements the subsidy was extended through March 31, 2004. Moreover, the subsidized gas oil price was increased up to Ps. 0.82
per liter.



Holders
of exploration permits and production concessions are subject to federal, provincial and municipal taxes and regular customs duties on imports. The Hydrocarbons Law grants such
holders a legal guarantee against new taxes and certain tax increases at the provincial and municipal levels. Holders of exploration permits and production concessions must pay an annual surface tax
based on the area held. In addition, "net profit" (as defined in the Hydrocarbons Law) of holders of permits or concessions accruing from activity as such holders is subject to a special 55% income
tax. This tax has never been applied. Each permit or concession granted to an entity other than YPF has provided that the holder thereof is subject instead to the general Argentine tax regime, and a
decree of the national executive provides that YPF also is subject instead to the general Argentine tax regime.

Following
the introduction of market prices for downstream petroleum products in connection with the deregulation of the petroleum industry, Law No. 23,966 established a
volume-based tax on transfers of certain types of fuel, replacing the prior fuel tax regime which was based on the regulated price. Law No. 24,745 modified, effective as of August 2003,
the mechanism for calculating the tax, replacing the old fixed value per liter according to the type of fuel for a percentage to apply to the sales price, maintaining as the minimum tax the old fixed
value.

In
compliance with the provisions of the Public Emergency and Foreign Exchange System Reform Law, the Argentine government imposed (via the Executive Decrees Nos. 310/2002 and 809/2002,
as amended by resolutions 335/04, 336/04 and 337/04 issued by the Ministry of Economy and Production on May 11, 2004) customs duties on the export of crude oil at a rate of 25%, butane, methane
and LPG at a rate of 20% and gasoline and diesel at a rate of 5%. Moreover, on May 26, 2004 through the issuance of Decree No. 645/04 an export duty on the export of natural gas and LNG
was established at a rate of 20%.

Certain
contracts under which YPF exports gas provide that any tax (which definition YPF believes is inclusive of the above mentioned export duties) that is created after the execution
of such

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agreements
shall be borne by the buyer thereof. Consequently, it is reasonable to estimate that the applicable export duty will be not entirely borne by YPF.



On
June 16, 1999, the Argentine Ministry of Economy and Public Works delivered a letter to Repsol YPF setting forth a series of obligations that Repsol YPF would be required to
assume in the event that Repsol YPF acquires a majority of the share capital of YPF. Repsol YPF has, in a letter dated June 17, 1999, accepted the Ministry's requirements, which are described
below:



Repsol
YPF believes that it is in compliance with all the obligations required in the letter delivered on June 16, 1999, by the Argentine Ministry of the Economy and Public Works
and the Argentine government has not raised any objections to the performance of those obligations.

On
March 14, 2000, the Secretariat for the Defense of Competition and the Consumer of the Ministry of Economy (Secretaría de Defensa de la
Competencia y del Consumidor del Ministerio de Economía) issued a press release stipulating the following series of guidelines establishing the manner in which
Repsol YPF must meet its obligation under the June 16, 1999 letter of the Argentine Ministry of Economy and Public Works requiring that Repsol YPF dispose of refining assets and service
stations in Argentina in connection with its acquisition of control of YPF:



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Repsol
YPF met all of the above requirements upon execution of the asset swap agreement entered into with Petrobras in December 2001.

Repsol
YPF believes that the acquisition of YPF will not be subject to further antitrust scrutiny in Argentina under existing law. However, the Ministry has not stated that there will be
no further antitrust scrutiny and no assurances can be given that Repsol YPF will not be required to accept additional undertakings or other measures intended to address any perceived
anti-competitive effects of the YPF acquisition.



Executive
Decree No. 1589/89, relating to the Deregulation of the Upstream Oil Industry, allows YPF and other companies engaged in oil and gas production activities in Argentina
to freely sell and dispose of the hydrocarbons they produce. Additionally, under Decree No.1589/89, YPF and other oil producers are entitled to keep out of Argentina up to 70% of foreign currency
proceeds they receive from crude oil and gas sales, being required to repatriate the remaining 30% through the exchange markets of Argentina.

In
July 2002, Argentina's Attorney General issued an opinion (Dictamen 235) which would have effectively required YPF to liquidate
100% of its export receivables in Argentina, instead of the 30% provided in Decree No. 1589/89. The Attorney General's opinion was based on the assumption that Decree No. 1589/89 had
been superseded by other decrees (Decree No. 530/91 and 1606/01) issued by the government. Subsequent to this opinion, however, the government issued Decree No. 1912/02
ordering the Central Bank to apply the 70/30% regime set out in Decree No. 1589/89. Nevertheless, on December 5, 2002, representatives of the Central Bank, responding formally to an
inquiry from the Argentine Bankers Association, stated that the Central Bank would apply the Attorney General's opinion. On December 9, 2002, YPF filed a declaratory judgment action
(Acción Declarativa de Certeza) before a federal court requesting the judge to clarify the uncertainty generated by the opinion and
statements of the Attorney General and the Central Bank, and requesting confirmation of YPF's right to freely dispose of up to 70% of its export receivables. On December 9, 2002, the federal
judge issued an injunction ordering the Argentine government, the Central Bank and the Ministry of the Economy to refrain from interfering with YPF's access to and use of 70% of the foreign exchange
proceeds from its exports. This decision was appealed by the Central Bank and the Ministry of Economy.

On
December 27, 2002, the government issued Decree No. 2703/02, effective as of January 1, 2003, setting forth a minimum repatriation limit of 30% with respect to
proceeds from the export of hydrocarbons and by-products, with the remaining portion freely disposable. However, when referring to the minimum repatriation limit of 30%, the decree only
mentions the foreign exchange proceeds from freely disposable exports of crude oil and its by-products. Although the recitals and the first part of Section 1 of Decree
No. 2703/02 mention natural gas and LPG as covered by this regime, there are no express references to natural gas or LPG in the rest of Section 1. However, taking into account the rights
granted by Decree No. 1589/89, YPF applies this regime to the export of crude oil, LPG and natural gas. It is worth noting that the recitals of Decree No. 2703/02 restate the
interpretation maintained by the Attorney General in the sense that Decree No. 1589/89 has been repealed by Decree

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Nos.
530/91 and 1606/01. This interpretation prompted the filing of the above-mentioned declaratory judgment action. Moreover, since Decree No. 2703/02 is effective as from January 1,
2003, and, in light of the Attorney General's opinion, it is unclear whether hydrocarbon exporters would be required to repatriate the total amount of their 2002 export proceeds or whether the
existing hydrocarbons regulatory framework will prevail, YPF has expanded the object of the declaratory judgment action before the federal court to request that the judge expressly state that Decree
No. 530/91 did not derogate Decree No. 1589/89 and, thus, that the right of free disposal of export receivables was effective between issuance of Decree No. 1606/01 and Decree
2703/02. On December 1, 2003 the National Administrative Court of Appeals decided that the issuance of Decree No. 2703/02, which allows companies in the oil and gas sector to keep abroad
up to 70% of the export proceeds, rendered the injunction unnecessary. On December 15, 2003, YPF filed a motion for clarification asking the court to clarify whether the exemption was available
to oil and gas companies during the period between the issuance of Decree No. 1606/01 and the issuance of Decree 2703/02. On February 6, 2004, the Court of Appeals dismissed YPF's motion
for clarification, indicating that the regulations included in Decree 2703/02 were sufficiently clear, and confirmed the lifting of the injunction that prohibited the Central Bank and the Ministry of
Economy from interfering with YPF's access to foreign exchange proceeds, as described above. On February 19, 2004, YPF filed an extraordinary appeal before the Supreme Court challenging the
December 1, 2003 decision of the Court of Appeals and requesting the restatement of the injunction against the Central Bank and the Ministry of Economy. See Section 6.2 "Financial
InformationLegal ProceedingsArgentina."



Most of Repsol YPF's property, consisting of service stations, refineries, manufacturing facilities inventory, storage facilities and transportation facilities,
is located in Spain and Argentina. Repsol YPF also has interests in crude oil and natural gas reserves. Most of these reserves are located outside of Spain, with most being located in Argentina,
Bolivia and Trinidad and Tobago.

There
are several classes of property which Repsol YPF does not own in fee. Repsol YPF's petroleum exploration and production rights are in general based on sovereign grants of a
concession. Upon the expiration of the concession, the exploration and production assets of Repsol YPF associated with a particular property subject to the relevant concession revert to the sovereign.
In addition, at December 31, 2003, Repsol YPF leased 2,184 service stations to third parties, 1,929 of which were located in Spain and 43 in Argentina, and 3,176 service stations are owned by
third parties and operated under a supply contract with Repsol YPF for the distribution of Repsol YPF products, of which 746 were located in Spain and 1,737 in Argentina.

Law
34/1998 revoked the concessions held by Enagas and Gas Natural to operate Spain's primary transport and distribution networks of natural gas pipelines and conveyed to Enagas and Gas
Natural outright ownership of the networks. Under Law 34/1998, as amended by Royal Decree Law 6/2000, the government may not authorize new entrants into any distribution network area served by Gas
Natural for the shorter of the remaining life of the former concession for that area or the time period remaining until January 1, 2005. There are, however, no limitations on entrants in areas
served by the transport network.



Among Repsol YPF's activities, its natural gas business has the most significant degree of seasonality in relation to climatological conditions, with increased
activity in winter and decreased activity in summer in the Northern Hemisphere. Repsol YPF's activities in Latin America, however,

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partially
offset this effect as winters in the Southern Hemisphere coincide with summers in the Northern Hemisphere, thus reducing the seasonality effect on Repsol YPF's natural gas business.

On
the other hand, now that Repsol YPF accounts for its interest in Gas Natural following the proportional consolidation method (whereas prior to the end of May 2002 Gas Natural's
results were consolidated using the global integration method), the contribution of the natural gas business to Repsol YPF's results of operations has declined significantly. In addition, the changes
to the compensation system approved by the Spanish government in February 2002 have stabilized notably the amount of revenues from distribution activities throughout the year.



Repsol YPF does business in many countries, under a number of regulatory frameworks and in all branches of the oil and gas business. As a result, Repsol YPF
incurs:



The
company considers that its salient risks are those that could jeopardize the achievement of the goals of its strategic plan and particularly that of maintaining its financial
flexibility and solvency in the long term. Repsol YPF is prudent in the management of its assets and businesses. Nevertheless, many of the risks mentioned above are inherent to its business and beyond
the control of the company, so that they cannot be entirely eliminated.

Repsol
YPF has an organization, procedures and systems allowing it to identify, measure, assess, set priorities and control the risks to which the group is exposed and to decide to what
extent such risks will be assumed, managed, mitigated or avoided. Risk analysis is an integral part of decision-making in the group, both at centralized management level and in the management of the
various business units, with special attention being given to the concurrence of different risks or to the possible effects of diversification in the aggregate.

Repsol
YPF has an organization directed at good corporate governance based on:



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The
composition, powers and functions of these Committees are described Section 4.1 "Directors, Senior Management and Employees".



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In
addition, there are several functional and business committees entrusted with the oversight of risk management activities within their field of responsibility. The risk control
functions of units with market risk management responsibilities have been properly segregated and have the required independence to guarantee effective control.

At
the corporate level, the most important control systems and devices of Repsol YPF are the following:



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3. Operating and Financial Review and Prospects

You should read the information in this section together with the Consolidated Financial Statements and the related notes included in this annual report. Repsol
YPF prepares its Consolidated Financial Statements in accordance with Spanish GAAP, which differ in certain significant respects from U.S. GAAP. See Note 27 to the Consolidated Financial
Statements.



Year Ended December 31,2003(1)

2002(1)

2001(millions of euros)Operating revenues

37,206

36,490

43,653Operating expenses

(33,346
)
(33,167
)
(38,733
)Operating income

3,860

3,323

4,920Extraordinary income (loss)

(154
)
648

(777
)Amortization of goodwill

(174
)
(300
)
(323
)Interest income (expense), net

(400
)
(786
)
(1,352
)Equity in earnings of unconsolidated affiliates

146

(35
)
35Income before income tax and minority interest

3,278

2,850

2,503Income tax

(1,048
)
(564
)
(988
)Minority interest

(210
)
(334
)
(490
)Net income

2,020

1,952

1,025


---



Crude Oil Prices.Changes in crude oil international benchmark prices significantly affect Repsol YPF's earnings. In 2003,
exploration and production activities represented approximately 61% of Repsol YPF's operating income, compared to 54% in 2002. Per barrel Brent crude oil benchmark prices averaged US$28.83 in 2003,
US$25.02 in 2002 and US$24.44 in 2001. Political developments throughout the world (especially in the Middle East), the outcome of meetings of the Organization of the Petroleum Exporting Countries
(OPEC) as well as significant conflicts, like the war in Iraq, can particularly affect world oil supply and oil prices. Higher crude oil prices have a positive effect on Repsol YPF's results of
operations as our upstream exploration and production businesses benefit from the resulting increases in prices realized from production. Lower crude oil prices have a negative effect on the results
of exploration and production by reducing the economic recoverability of discovered reserves and the prices realized from production. See Section 9 "Quantitative and Qualitative Disclosure
About Market Risk."

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The
effect of changes in the price of crude oil and other raw materials on chemicals, refining, marketing and gas margins depends on the speed with which petroleum products and LPG
prices charged by Repsol YPF are revised to reflect such changes.

Prices for LPG in Spain.Prices for LPG in Spain are subject to maximum selling price formulas which are established by the
Spanish government. In October 2000, the Spanish Ministry of Economy enacted a new maximum price formula for bottled LPG exceeding 8 kgs which takes into account, among other factors,
international prices of LPG during the year prior to each adjustment, which takes place every April and October. See Section 2.3.1.2 "Information on Repsol YPFRegulation of the
Petroleum IndustrySpainLPG."

Natural Gas in Spain.The natural gas market in Spain has been progressively liberalized. Natural gas prices in the regulated
market are subject to a system of price ceilings, which determines maximum prices of natural gas mainly on the basis of the cost of raw materials and transmission and distribution costs. See
Section 2.3.1.3 "Information on Repsol YPFRegulation of the Petroleum IndustrySpainNatural Gas."

The
Spanish market for gas activities is becoming increasingly competitive. Since October 1999, the Spanish government has granted operating licenses for natural gas marketing to
more than 30 new competitors of Repsol YPF. Law 34/1998 also established third-party access rights for "qualified consumers", sellers and transporters to use Enagas' and Gas Natural's facilities for
the receipt, storage and transportation of natural gas on a nondiscriminatory and transparent basis, subject to tariffs that receive regulatory approval. Royal Decree Laws 6/1999 and 6/2000 have
accelerated the entry of new competitors in the Spanish natural gas distribution and supply markets, by reducing the minimum consumption standard that consumers must meet to become "qualified
consumers" and, thus, be able to freely choose their natural gas supplier. These consumption standards have been gradually
eliminated and, since January 1, 2003, all consumers may freely choose a supplier. During 2003, sales in this liberalized market were approximately 16.5 billion cubic meters,
representing approximately 70% of total natural gas sales in Spain. See Section 2.3.1.3 "Information on Repsol YPFRegulation of the Petroleum
IndustrySpainNatural Gas."



Repsol
YPF's results of operations in 2002 and 2001 were adversely affected by the Argentine crisis, in particular by losses resulting from the devaluation of the peso and the decline in
the value of its assets in Argentina as a consequence of the Argentine government's measures to address the crisis affecting the oil industry. See Section 2.3.2. "Information on Repsol
YPFRegulation of the Petroleum IndustryArgentina."

In
preparing its 2001 financial statements and thereafter, Repsol YPF determined the functional currency to be applied to each of the different businesses operating in Argentina
considering all relevant factors and particularly the analysis of the cash flows generated by such businesses.

The
determination of the functional currency to be applied to a business for accounting purposes is a decision which impacts, among other things, the reported results of operations, the
exchange income or losses recorded and the translation differences arising from the conversion of its financial statements from the functional currency to the Group's reporting currency.

The
effect of having the US$ as the functional currency for YPF, S.A. for accounting purposes means that those transactions occurring in the local currency (Peso) will generate exchange
differences which will be recorded in the income statement, while the majority of its transactions (occurring in US$) will not generate exchange differences in the income statement. In the
consolidation process,

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translation
differences will arise as a result of the conversion of YPF, S.A.'s financial statements prepared using the US$ functional currency to the Group's reporting currency (euro)."

Consequently,
Repsol YPF's net income for 2002 and 2001 was negatively affected by €188 million and €957 million, respectively. The main
items, before taxes, in this decline in 2002 net income were exchange rate losses of €134 million and losses from Argentine consolidated subsidiaries amounting to
€126 million. The main items, before taxes, in the decline of 2001 net income were impairment charges for the
write-down of fixed assets of €653 million, provisions for bad and doubtful debts of €251 million and exchange rate losses of
€189 million. Exchange rate losses reflect the impact of exchange rate differences on dollar-denominated financings of peso-denominated assets in Argentina.

In
2003, due to the stability of the Argentine peso, Repsol YPF's results of operations were not adversely affected due to currency fluctuations in Argentina.



Repsol
YPF prepares its consolidated financial statements from its accounting records and those of the companies composing the Repsol YPF Group, which are presented in accordance with
current legislation, the Spanish Corporations Law, Spanish GAAP and consolidation regulations and, accordingly, give a true and fair view of the Repsol YPF Group's shareholders' equity, financial
position and results of operations.

The
primary financial statements of Repsol YPF are those presented under Spanish GAAP. Such standards differ in certain material aspects from U.S. GAAP. Differences between Spanish GAAP
and U.S. GAAP and their effect on consolidated net income for each of the years 2003, 2002 and 2001 and on consolidated shareholders' equity as of December 31, 2003 and 2002, are presented in
Note 27 to the Consolidated Financial Statements.

The
preparation of the financial statements in conformity with Spanish GAAP as well as the additional note on differences between Spanish GAAP and U.S. GAAP and other required
disclosures, require management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosures of contingent assets and liabilities at the date of the
financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.



Under
Regulation 1606/2002/EC of the European Parliament and Council of July 19, 2002, on the application of International Financial Reporting Standards, EU listed groups
such as Repsol YPF are
required, effective for the years beginning on or after January 1, 2005, to prepare their consolidated financial statements in accordance with International Financial Reporting Standards
(IFRS).

The
International Financial Reporting Standards are issued by the International Accounting Standards Board (IASB), an independent agency based in London which, since April 1,
2002, has been carrying out the duties that were formerly fulfilled by its predecessor, the International Accounting Standards Committee (IASC).

In
2002 the IASB undertook a project to improve and update the standards already issued and in force. In December 2003, the IASB approved the general improvement project which
affected a total of 14 standards, including standards on the recording, valuation and presentation of financial instruments. These improvements are pending approval by the European Commission. Also,
in the first quarter of 2004 the IASB approved new standards including most notably, because of their importance for the Repsol YPF Group, those relating to the treatment of business combinations,
impairment of assets and the recording and valuation of intangible assets.

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The application of International Financial Reporting Standards will lead to the emergence of differences in the treatment of certain transactions with respect to generally accepted
accounting principles and standards in Spain, first, because of the non-acceptance of certain methods currently used and, second, because of the introduction of certain accounting
treatments not currently permitted under Spanish accounting regulations. Additionally, IFRS provide for alternative treatments which permit the use of policies and methods not currently permitted
under the current Spanish General Chart of Accounts.

In
light of the foregoing, in 2003 the Repsol YPF Group carried out a project in order to analyze these differences and alternative treatments, to assess the effects and implications
thereof and to establish the accounting policies and methods to give a true and fair view of the Group's net worth and financial position and of the results of its operations in conformity with the
new standards. This project is expected to enable the Group to meet the effective dates established by the European Commission. Although at the date of this annual report there are international
financial reporting standards issued by the IASB which are still in draft version or pending approval by the European Commission, we have identified to date the following significant items which will
foreseeably affect the financial statements to be prepared by the Repsol YPF Group in accordance with IFRS:



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The
accounting principles and areas that require the most significant judgments and estimates to be used in the preparation of the Consolidated Financial Statements are: (i) oil
and natural gas reserves; (ii) goodwill arising in business combinations; and (iii) provisions for contingencies and environmental liabilities. The following summary provides further
information about the critical accounting policies and the judgments that are made in the application of those policies.



Repsol YPF prepares its assumptions and estimates regarding oil and gas reserves taking into consideration the rules and regulations established for the oil and
gas industry by the U.S. Securities and Exchange Commission and the accounting principles laid down by the U.S. Financial Accounting Standards Board. In accordance with these rules, proved oil and gas
reserves are the estimated volumes of crude oil, natural gas and other liquids and hydrocarbons which geological and engineering data demonstrate with reasonable certainty that can be extracted from
known fields in future years under existing economic and operating conditions, such as prices and costs as of the date of the estimates. Prices include consideration of changes in existing prices only
by contractual arrangements, but not of escalations based upon future conditions. In order to estimate its proved reserves, Repsol YPF prepares internal studies and uses, to a certain extent, reports
of independent engineers.

Proved
developed reserves are reserves that can be expected to be recovered through existing wells with existing equipment and operating methods and current economic conditions as of
each balance sheet date. Additional oil and gas expected to be obtained through the application of fluid injection or other improved recovery techniques for supplementing natural forces and mechanisms
of primary recovery are included as "proved developed reserves" only after testing by a pilot project or after the operation of an installed program has confirmed through production response that
increased recovery will be achieved.

Proved
undeveloped reserves are reserves that are expected to be recovered from new wells on undrilled acreage, or from existing wells where a relatively major expenditure is required
for recompletion, but does not include reserves attributable to any acreage for which an application of fluid injection or other improved recovery techniques is contemplated, unless such techniques
have been proved effective by actual tests in the area and in the same reservoir. Reserves on undrilled acreage are limited to those drilling units offsetting productive units that are reasonably
certain of production when drilled. Proved reserves for other undrilled units can be claimed only where it can be demonstrated with certainty that there is continuity of production from the existing
productive formation.

Unproved
reserves are those with less than reasonable certainty of recoverability and are classified as either probable or possible.

Repsol
YPF follows the successful efforts method of accounting for its oil and gas activities, whereby exploration costs, excluding drilling costs, are charged to income as they are
incurred. Drilling costs are capitalized until it is known whether the prospective well is commercially exploitable, in which case they are reclassified to "Investments in areas with oil reserves".
Otherwise they are expensed when the wells are determined to be unproductive. The amounts recorded under the caption "Investments in areas with oil reserves" are depreciated as follows:



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Therefore,
Repsol YPF's management must make reasonable and supportable assumptions and estimates with respect to (i) the market value of reserves, (ii) oil fields'
production profiles, (iii) future investments and their amortization, taxes and costs of extraction and (iv) appropriate risk factors for unproved reserves and other factors. Such
assumptions and estimates have a significant impact on calculations in accordance with the unit of production method and evaluating the impairment of fixed assets (oil and gas investments). As such,
any change in the variables used to prepare such assumptions and estimates may have, as a consequence, a significant effect on both the depreciation of, and the impairment tests relating to,
investments in areas with oil and gas reserves.

Depreciation.Volumes produced and asset costs are known, while proved reserves have a high probability of recoverability and
are based on estimates that are subject to some variability. The impact of changes in estimated proved reserves are treated prospectively by amortizing the remaining book value of the assets over the
future expected production. In 2003, 2002 and 2001 Repsol YPF recorded depreciation of fixed assets associated with hydrocarbon reserves amounting to €1,218 million,
€1,322 million and €1,456 million, respectively. If proved reserves estimates are revised downward, net income could be negatively affected by higher
depreciation expense.

Repsol
YPF uses this accounting policy instead of the full cost method because it provides for a more accurate recognition of the success or failure of the exploration and production
activities on a field by field basis. If the full cost method were used all costs would be capitalized and depreciated and an impairment test could be performed on an entire country basis.

Impairment.Oil and gas producing properties are reviewed for impairment whenever events or changes in circumstances indicate
that the carrying amounts may not be recoverable. Impairment is determined by comparing the carrying value with the undiscounted future cash flow expected for each oil and gas producing property. The
impairment is calculated as the difference between the market value or, if appropriate, the discounted estimated future cash flows from its proved reserves and unproved reserves, adjusted for risks
related to such reserves, in each field owned at the year end with the net book value of the assets relating thereto. Expected future cash flows from the sale or production of reserves are calculated
considering crude oil prices based on a combination of market forward quotes and standard long term projections. The discounted values of cash flows are determined using a reasonable and supportable
discount rate based on standard WACC-CAPM (weighted average cost of capitalcapital asset pricing model) assumptions including, if appropriate, a risk premium related to this
type of asset. The estimated cash flows are based on future levels of production, the future commodity prices, lifting and development costs, estimates of future expenditures necessary with respect to
undeveloped oil and gas reserves, field decline rates, market demand and supply, economic regulatory climates and other factors.

Charges
for impairment are recognized in Repsol YPF's results from time to time as a result of, among other factors, adverse changes in the recoverable reserves from oil and natural gas
fields, and changes in economic regulatory conditions in certain countries. In 2002 and 2001, Repsol YPF recorded provisions for impairments of fixed assets amounting to
€410 million and €655 million, respectively. In 2003, Repsol YPF reversed €275 million of provisions previously charged for
fixed-asset writedowns due

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to
the economic recovery in the value of the assets associated with hydrocarbon reserves that had been the subject of the provision. If proved reserves estimates were revised downward, net income
could be negatively affected by higher impairment charge on the property's book value.

Dismantling of oil and gas fields.Repsol YPF makes provisions for the future dismantling of oil and natural gas facilities
at the end of their economic life. The estimated costs of dismantling and removing these facilities are accrued during the economic life of the field based on the estimated dismantling cost and the
ratio of annual production to proved reserves. These removal costs are based on management's best estimate of the time that the event will occur and the associated costs with the removal of the asset.
Asset removal technologies and costs, as well as political, environmental, safety and public expectations, are constantly changing. Consequently, the timing and future cost of dismantling are subject
to significant modification. The timing and the amount of future expenditures of dismantling are reviewed annually. As such, any change in variables used to prepare such assumptions and estimates can
have, as a consequence, a significant effect on provisions and charges related to the dismantling of oil and gas fields.



This caption relates to the positive difference between the amount paid to acquire subsidiaries and equity investees and their underlying book values at the
acquisition date, adjusted, when appropriate, by the specific fair value of the acquired assets and liabilities. Goodwill is amortized over the period in which the investment is expected to be
recovered, up to a maximum of 20 years.

Repsol
YPF annually analyzes goodwill for potential impairment based on estimates of the fair value of the subsidiary/investee. If the fair value is lower than book value including
goodwill, Repsol YPF records an impairment charge. Fair value estimates may take into consideration certain hypotheses such as discount rates, future cash flows, etc. Accordingly, any change in the
variables used to prepare such assumptions and estimates may have a significant impact on the fair value estimated and thus in the goodwill impairment recorded in respect of each analyzed
subsidiary/investee.



Litigation and other contingencies.Claims for damages have been made against Repsol YPF and certain of its consolidated
subsidiaries in pending lawsuits and tax disputes. The general guidance provided by Spanish GAAP requires that liabilities for contingencies should be recorded when it is probable that the liability
or obligation may give rise to an indemnity or payment. Significant judgment by management is required to comply with this guidance taking into consideration all the relevant facts and circumstances.
See Note 14 to the Consolidated Financial Statements. The final costs arising from the settlement of the claims and litigation may vary from estimates based on differing interpretations of
laws, opinions and final assessments on the amount of damages. As such, changes in the facts or
circumstances related to these types of contingencies, as well as the future outcome of these disputes, can have, as a consequence, a significant effect on the amount of provisions for contingencies
recorded.

Environmental costs.Repsol YPF makes judgments and estimates in recording costs and establishing provisions for
environmental clean-up and remediation costs which are based on current information regarding costs and expected plans for remediation. For environmental provisions costs can differ from
estimates because of changes in laws and regulations, discovery and analysis of site conditions and changes in clean-up technology.

As
such, any change in the facts or circumstances related to these types of provisions, as well as changes in laws and regulations, can have, as a consequence, a significant effect on
our provisions for these costs. The provision for environmental liabilities is reviewed annually. As of December 31, 2003 and 2002 the provisions for environmental liabilities amounted to
€84 million and €111 million, respectively. See Note 22 to the Consolidated Financial Statements.

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In
addition to the critical accounting policies relating to the primary financial statements prepared under Spanish GAAP, set forth below is an additional critical accounting policy
relating to the reconciliation to U.S. GAAP, since in applying U.S. GAAP Repsol YPF is required to make different assumptions that involve uncertain matters.



Under U.S. GAAP, Repsol YPF records all derivatives, including certain derivatives embedded in contracts, whether designated in hedging relationships or not, at
fair value in accordance with SFAS No. 133. On the initial application of this accounting standard, January 1, 2001, the difference between a derivative's previous carrying amount and
its fair value was reported as a transition adjustment in net income or other comprehensive income ("OCI"), as appropriate, as the cumulative effect of a change in accounting principle. The accounting
for changes in fair value of a derivative instrument depends on its intended use and the resulting designation.

If
the derivative is designated as a fair value hedge, the changes in the fair value of the derivative and of the hedged item attributable to the hedged risk are recognized in earnings.
If the derivative is designated as a cash flow hedge, the effective portions of changes in the fair value of the derivative are recorded in OCI and are recognized in the income statement when the
hedged item affects earnings. Ineffective portions of changes in the fair value of cash flow hedges are recognized in earnings. The gain or loss on a hedging derivative instrument that is designated
as, and is effective as, an economic hedge of the net investment in a foreign operation is reported in the same manner as a translation adjustment to the extent it is effective as a hedge. The
ineffective portion of net investment hedges is reported in earnings.

Recording
derivatives at fair value is applied within the context of an overall valuation framework. When available, quoted market prices are used to record a contract's fair value.
However, market values for some contracts may not be readily determinable because the duration of a contract exceeds the liquid activity in a particular market or due to other particular
circumstances. If no active trading market exists for a contract, holders of these contracts must calculate fair value using internally developed valuation techniques or models. Key components used in
these valuation techniques include price curves, volatility, correlation, interest rates and tenor. Of these components, volatility and correlation are the most subjective. Internally developed
valuation techniques include the use of interpolation, extrapolation and fundamental analysis in the calculation of a contract's fair value.

While
Repsol YPF uses common industry practices to develop its valuation techniques, changes in Repsol YPF's pricing methodologies or underlying assumptions could result in significantly
different fair values and income/OCI recognition.



Spanish GAAP differ in certain respects from U.S. GAAP. For a more detailed discussion of the most significant differences between Spanish GAAP and U.S. GAAP as
they relate to Repsol YPF please refer to Note 27 to the Consolidated Financial Statements, which includes a reconciliation of net income and shareholders' equity from Spanish GAAP to U.S. GAAP
and certain additional disclosures which are required under U.S. GAAP.

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In
the case of the Repsol YPF Group, the main differences between U.S. GAAP and Spanish GAAP affecting our net income in 2003, 2002 and 2001 and shareholders' equity at
December 31, 2003 and 2002 relate to:



Net
income under Spanish GAAP in 2003, 2002 and 2001 was €2,020 million, €1,952 million and €1,025 million,
respectively, whereas net income under U.S. GAAP for 2003, 2002 and 2001 was €1,921 million, €1,286 million and €980 million,
respectively. Shareholders' equity under Spanish GAAP at December 31, 2003 and 2002 was €13,632 million and €13,586 million, respectively, whereas
shareholders' equity under U.S. GAAP at December 31, 2003 and 2002 was €13,180 million and €12,947 million, respectively.

The
most significant item reducing our net income and shareholders' equity in 2002 under U.S. GAAP relates to impairments of goodwill. Effective January 1, 2002, Repsol YPF
adopted SFAS No. 142, Goodwill and Other Intangible Assets (SFAS 142). Under SFAS 142, goodwill is no longer amortized over its estimated useful life, but is instead tested for
impairment on an annual basis and whenever indicators of impairment arise. The goodwill impairment test, which is based on fair value, is performed on a reporting unit level.

Repsol
YPF performed the transitional goodwill impairment test required by SFAS No. 142 as of January 1, 2002 and the annual goodwill impairment test as of
December 31, 2003 and 2002. Fair value of the reporting units for which goodwill has been assigned was determined based on income and market approaches. As a result of these analyses, Repsol
YPF recorded an impairment loss of €1,215 million as of January 1, 2002 in respect of the U.S. GAAP carrying value of the goodwill assigned to the Refining, LPG,
Chemicals and Natural Gas and Electricity reporting units, which was

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recorded
as the cumulative effect of a change in accounting principle. The analysis of the annual goodwill impairment test did not result in any impairment loss on goodwill as of December 31,
2003 and 2002. The above impairment loss reduced our net income for 2002 under U.S. GAAP by the same amount and resulted in a reduction in shareholders' equity at December 31, 2003 and 2002
under U.S. GAAP of €910 million and €1,093 million, respectively. Applying SFAS No. 142 also resulted in the elimination under U.S. GAAP of all
goodwill amortization recorded in 2003 and 2002 under Spanish GAAP for consolidated entities and entities carried by the equity method. See Note 27.4.5 to the Consolidated Financial Statements.

In
2003, other significant items reducing our U.S. GAAP net income included the elimination of an impairment reversal recorded under Spanish GAAP on upstream properties, since
restoration of previously recognized impairment losses is prohibited under U.S. GAAP; and the recognition of derivative financial instruments at fair value, in particular embedded derivatives in other
contracts.



Almost
all extraordinary revenues and expenses recorded by Repsol YPF under Spanish GAAP would be recorded as operating revenues or expenses under U.S. GAAP. This classification
difference has no impact on net income.

Gains
on sales of property, plant and equipment that are included in "Other operating revenues" under Spanish GAAP would not be classified as part of "Total operating revenues" under
U.S. GAAP, although such gains would still be included in operating income.

Repsol
YPF includes in both expenses and revenues the excise taxes on the products marketed by it. Under U.S. GAAP, excise taxes would not be included within revenues.

In
2003, 2002 and 2001 certain affiliates of Repsol YPF have been consolidated using the proportional integration method. Under U.S. GAAP these entities would be accounted for under the
equity method. This difference has no effect on net income or shareholders' equity but impacts different items of the balance sheet and the income statement.

Under
U.S. GAAP, all goodwill related to investments accounted for under the equity method is included in the carrying amount of the investment. Under Spanish GAAP, equity method
goodwill is classified as part of the separate goodwill balance on the balance sheet.

Under
U.S. GAAP, a deferred tax liability has been recorded in accordance with the requirements of SFAS 109 for the difference between the assigned value and the tax base of the
oil and gas properties acquired in certain purchase business combinations. Recognition of this deferred tax liability increases the financial reporting basis of such oil and gas properties by the same
amount.

Under
Spanish GAAP, some of the variable interest entities that Repsol YPF participates in are not consolidated. Under U.S. GAAP these entities have been fully consolidated. This
difference has no material effect on net income or shareholders' equity but impacts different items of the balance sheet and the income statement.

Under
Spanish GAAP, Repsol YPF has recorded leased fixed assets as intangible assets. In addition, interest on capital leases are included together with the related debt, with the
unamortized portion being included as a deferred charge. Under U.S. GAAP, leased fixed assets are shown on the balance sheet as tangible assets. In addition, under U.S. GAAP the capitalized asset and
obligation should be recorded at the net present value of the minimum lease payments at the outset of the lease. Interest should be charged each period, but the total amount of interest to be paid
should not be recorded on the balance sheet. This difference has no effect on net income or shareholders' equity but impacts different items of the balance sheet.

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Net income for 2003 was €2,020 million, a 3.5% increase compared to 2002. Net income per share rose to €1.65 in 2003 from
€1.60 in 2002.

The
revaluation of the euro had a 20% effect of the foregoing results year-on-year because Repsol YPF's results are sensitive to the euro/dollar exchange rate.
Instability in the Middle East, the weak dollar, restrictions in OPEC production, and a rise in demand pushed benchmark oil prices to a higher level than the year before. The average price of Brent
was $28.83/bbl in 2003 in comparison with $25.02./bbl in 2002, although, if quoted in euros, the Brent price fell 3.7% from €26.50/bbl in 2002 to €25.52/bbl in 2003.
Refining margins widened considerably year-on-year to reach $3.19/bbl. Performance in the marketing area was excellent throughout the year. In Spain, sale of light products
posted a record high while in Argentina, there was significant improvement in margins in 2003 although this was partly curtailed by the stability agreement. The average margins for chemicals were at a
lower than mid-cycle level, if better than the year before, and basic petrochemicals margins improved during the first half of the year and urea and methanol margins improved throughout
the year. Gas and Electricity results continued to be strongly affected by the change in consolidation scope and the remuneration regime in the Spanish gas sector, both set in place during 2002.

Net
income for 2002 was €1,952 million, a 90.4% increase compared to 2001. Net income per share increased from €0.84 in 2001 to
€1.60 in 2002.

Results
for 2002 were affected, apart from the crisis in Argentina, by the steady increase in reference crude oil prices, influenced by the restrictions on OPEC supplies, fears of war
and by the prolonged crisis in Venezuela. In Spain, refining margins continued to narrow and marketing margins reflected
historical levels. Argentina refining and marketing margins experienced a significant improvement during 2002, after passing on to retail sale prices the increases in crude oil prices and due to the
effect of the peso devaluation. Chemicals average international margins reached similar levels to 2001, with growing international margins from January to September and declining margins in the fourth
quarter of the year as a result of weakened demand caused by the economic uncertainty. Gas and Electricity operations were impacted by important changes in the scope of the consolidation method and
the economic crisis in Argentina. The sale of 23% of Gas Natural and 29.67% of CLH had a significant positive impact on 2002 net income.



Operating revenues in 2003 were €37,206 million, a 2.0% increase from €36,490 million for 2002. This increase
principally reflects higher reference crude oil prices, higher demand and increased sales of petroleum products and the recovery in commercial margins in Argentina.

Operating
revenues in 2002 were €36,490 million, a 16.4% decrease from €43,653 million for 2001. This decrease principally reflects the
pesification of gas contracts in Argentina and one of the lowest refining margins in the last decade, as well as the change in the accounting treatment of Gas Natural. This decrease was partially
offset by higher sales volumes of natural gas, especially in Spain. Operating revenues continued to be affected by the economic crisis in Argentina, which generally affected all of our business lines.



Operating income in 2003 was €3,860 million as compared to €3,323 million in 2002. This increase principally
reflects higher crude oil realization prices and significant growth in hydrocarbon production. Operating income was also positively affected in 2003 by improved Refining and Marketing margins, higher
sales and improved international chemical margins.

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Operating
income in 2002 was €3,323 million as compared to €4,920 million in 2001. Operating income was negatively affected in 2002 by
declining
refining margins, the effect of the Argentine crisis and the deconsolidation of Gas Natural. Oil and gas realization prices decreased reflecting the higher proportion of heavy crudes in our production
as a consequence of the sale of assets in Indonesia and the higher proportion of gas in our production. Operating income was also negatively affected by the deconsolidation of CLH and the sale of
assets in Indonesia. The decrease in 2002 operating income was partially offset by the reclassification of €150 million of taxes paid in Dubai and Algeria from operating
expenses to income tax expense.



In 2003, net extraordinary losses amounted to €154 million compared to net extraordinary income of €648 million in
2002. Extraordinary income for 2003 includes the reversal of provisions of €275 million previously recorded for impairments of certain fixed assets associated with hydrocarbon
reserves and capital gains realized from the sale of a 6.78% stake in CLH to Oman Oil (€71 million). Main expenses in this item include losses mainly relating to a provision
related to the valuation of a take or pay commitment to transport certain quantities of crude oil through an oil pipeline in Ecuador (€162 million), the non recurring effects of
certain amortizations derived from the partial reversal of the provision for depreciation of certain exploration operations assets during 2003 (€72 million), labor force
restructuring expenses (€32 million), plant stoppages and environmental provisions (€41 million), a provision for litigation contingencies
(€35 million), a provision related to the key employee loyalty allowance (€28 million), the extraordinary provision related to the modification of certain
actuarial variables used to calculate the provision required for pension obligations in respect of employees of Maxus Energy Corporation, an affiliate of YPF (€27 million),
provisions for affiliates (€22 million), and other minor tax contingencies.

In
2002, net extraordinary income increased to €648 million compared to net extraordinary losses of €777 million in 2001. Extraordinary
income for 2002 includes capital gains realized from the sale of 23% of Gas Natural (€1,097 million) and 29.67% of CLH (€293 million), and Repsol YPF's
proportional share in capital gains from the sale by Gas Natural of 59.1% of Enagas (€97 million) and 13.25% of Gas Natural México
(€105 million). Main expenses in this item include provisions relating to exploration and production assets mainly in Mene Grande (Venezuela) and Aguarague (Argentina)
(€410 million), provisions to cover labor force adjustments (€54 million), environmental and litigation provisions (€44 million)
and provisions for pensions and similar contingencies relating to a U.S. affiliate (€41 million).



Goodwill amortization in 2003 decreased by 42% to €174 million from €300 million in 2002, mainly reflecting
accelerated amortization of goodwill generated upon the acquisition of several stakes in Gas Natural SDG affiliates in Colombia and Brazil (€79 million) in line with the
amortization schedule followed by Gas Natural SDG, offset in part by lower amortization in euros of part of Repsol YPF's goodwill denominated in US dollars due to the appreciation of the euro against
the dollar.

Goodwill
amortization in 2002 decreased by 7.1% to €300 million from €323 million in 2001, mainly reflecting the lower amortization in euros
of part of YPF's goodwill denominated in pesos. The decrease was partially offset by the accelerated amortization during 2002 of goodwill generated by Gas Natural's interests in the Colombian and
Brazilian affiliates purchased in 2002 (€79 million), following the Gas Natural amortization method.



Net interest expense in 2003 decreased 49.1% to €400 million from €786 million in 2002. This decrease reflects the
reduction of average debt year on year.

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Net
interest expense in 2002 decreased 41.9% to €786 million from €1,352 million in 2001. This decrease reflects the reduction of the
average interest rate paid in the last year and the significant reduction of Repsol YPF's debt. Average debt in 2002 decreased to €11,901 million from
€19,056 million in 2001. Net interest expense includes losses of €134 million related to the impact of exchange rate differences on dollar-denominated
financings of peso-denominated assets in Argentina, partially offset by €86 million of foreign currency gains relating to commercial transactions.



Equity earnings in unconsolidated affiliates for 2003 was €146 million, compared to losses of €35 million in 2002.
The table below provides detailed information about equity earnings and losses of unconsolidated companies in 2003, 2002 and 2001.

|                                  |       | 2003 |       | 2002  |       | 2001  |     
|--------------------------------- | ----- | ---- | ----- | ----- | ----- | ----- | ----
|
|Affiliate Company                 |       |      |       |       |       |       |     
|Oldelval, S.A.                    |       | (1.9 | )     | 15.1  |       | 10.4  |     
|Termap, S.A.                      |       | 2.4  |       | 3.4   |       | 8.9   |     
|REFAP(1)                          |       |     |       |      |       |      |     
|CLH(2)                            |       | 20.9 |       | 18.4  |       |      |     
|PBBPolisur                        |       | 25.2 |       | (37.5 | )     | (24.1 | )   
|Petroken(2)                       |       | 9.8  |       | 10.5  |       |      |     
|Inversora Dock Sud, S.A.          |       | 15.4 |       | (64.8 | )     | (31.1 | )   
|Gas Argentino, S.A. (GASA)(2)     |       |     |       | (18.9 | )     |      |     
|Atlantic LNG                      |       | 39.0 |       | 19.6  |       | 19.7  |     
|Enagas(2)                         |       | 14.6 |       | 5.5   |       |      |     
|Gas de Aragón                     |       | 0.8  |       | 3.0   |       | 5.0   |     
|Gas de Euskadi                    |       | 0.2  |       | 3.5   |       | 4.7   |     
|Oleoducto Transandino (Chile)     |       | 1.9  |       | 3.0   |       | 2.1   |     
|Oleoducto Transandino (Argentina) |       | 0.7  |       | 1.1   |       | 3.7   |     
|Other                             |       | 17.2 |       | 3.0   |       | 11.0  |     
|                                  |       |      |       |       |       |       |     
|                                  | Total |      | 146.2 |       | (35.1 | )     | 35.5
|                                  |       |      |       |       |       |       |     

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Repsol YPF's effective tax rate in 2003 was 32%. Corporate income tax incurred by Repsol YPF in 2003 amounted to €1,048 million.

The
effective tax rate is higher than the 19.8% effective tax rate in 2002 and lower than the effective tax in 2001 of 39.5%. This rate reflects the absence of exceptional items like
those experienced in 2001, mainly the effects of the crisis in Argentina, and in 2002, mainly disposals subject to a lower tax rate on the applicable capital gains due to the reinvestment of the
proceeds of such disposals.

Since
2002, corporate income taxes paid in Dubai and Algeria (€141 million in 2003 and €150 million in 2002) are recorded as a tax expense.
In years prior to and including 2001, corporate income taxes paid in Dubai and Algeria were treated as operating expenses of our Exploration and Production activities. Without this reclassification,
the effective tax rate would have been 29% in 2003.

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We
have provided you with our effective tax rate prior to the reclassification of tax expenses in order to provide a comprehensive analysis of our tax position in relation to our underlying operating
performance.



Income attributable to minority shareholders in 2003 amounted to €210 million compared to €334 million in 2002. The
variation in 2003 mainly reflects the exclusion of minority interests in Gas Natural in 2003 after the change in the consolidation method at the end of May 2002.

Income
attributable to minority shareholders in 2002 amounted to €334 million compared to €490 million in 2001. The variation in 2002 mainly
reflects the exclusion of minority interests in Gas Natural and CLH in 2002 after the change in the consolidation method at the end of May 2002 and December 2001, respectively, and the
incorporation in 2002 of dividends from preference shares issued in May and December 2001. See Note 1.d to the Consolidated Financial Statements.

The
table below provides detailed information about minority interests in 2003, 2002 and 2001.

|                                      |       | 2003  |       | 2002  |       | 2001  |      
|------------------------------------- | ----- | ----- | ----- | ----- | ----- | ----- | -----
|
|Affiliate Company                     |       |       |       |       |       |       |      
|Repsol International Capital (RIC)(1) |       | 156.8 |       | 175.7 |       | 89.8  |      
|YPF                                   |       | 14.0  |       | 14.2  |       | 8.0   |      
|Refinería La Pampilla, S.A.           |       | 1.0   |       | 7.1   |       | 15.9  |      
|Refipesa                              |       | (0.9  | )     | 1.6   |       | 4.0   |      
|CLH(2)                                |       |      |       |      |       | 63.3  |      
|Gas Argentino, S.A. (GASA)(2)         |       |      |       |      |       | (10.2 | )    
|Gas Natural(3)                        |       |      |       | 142.1 |       | 285.7 |      
|Petronor                              |       | 9.3   |       | 12.1  |       | 13.0  |      
|Invergas/Gas Natural BAN              |       | 4.5   |       | (40.0 | )     | (14.1 | )    
|Andina                                |       | 11.4  |       | 2.1   |       | 24.9  |      
|Repsol Comercial                      |       | 4.5   |       | 4.9   |       | 2.6   |      
|EMPL(4)                               |       | 4.6   |       | 11.4  |       |      |      
|Other                                 |       | 4.7   |       | 2.4   |       | 6.9   |      
|                                      |       |       |       |       |       |       |      
|                                      | Total |       | 209.9 |       | 333.6 |       | 489.8
|                                      |       |       |       |       |       |       |      

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The tables below set forth Repsol YPF's operating revenues and operating income by business segment for 2003, 2002 and 2001, as well as the percentage changes in
revenues for the periods shown.

|                  |                                                                       | 2003 |        | 2002 |        | 2001 |        | 2003 vs. 2002 |       | 2002 vs. 2001 |      
|----------------- | --------------------------------------------------------------------- | ---- | ------ | ---- | ------ | ---- | ------ | ------------- | ----- | ------------- | -----
|
|Operating revenue |                                                                       |      |        |      |        |      |        |               |       |               |      
|                  | Exploration and Production                                            |      | 6,419  |      | 5,580  |      | 7,305  |               | 15.0  | %             | (23.6
|                  | Refining and Marketing(1)(2)                                          |      | 32,480 |      | 31,289 |      | 32,491 |               | 3.8   |               | (3.7 
|                  | Chemicals                                                             |      | 2,240  |      | 2,109  |      | 2,355  |               | 6.2   |               | (10.5
|                  | Gas and Electricity(3)                                                |      | 1,486  |      | 3,110  |      | 5,900  |               | (52.2 | )             | (47.3
|                  | Other operating revenues and adjustments in the consolidation process |      | (5,419 | )    | (5,598 | )    | (4,398 | )             |      |               |     
|                  |                                                                       |      |        |      |        |      |        |               |       |               |      
|                  | Total operating revenues                                              |      | 37,206 |      | 36,490 |      | 43,653 |               | 2.0   |               | (16.4
|                  |                                                                       |      |        |      |        |      |        |               |       |               |      

|                 |                            | 2003 |       | 2002 |       | 2001 |       | 2003 vs. 2002 |       | 2002 vs. 2001 |      
|---------------- | -------------------------- | ---- | ----- | ---- | ----- | ---- | ----- | ------------- | ----- | ------------- | -----
|
|Operating income |                            |      |       |      |       |      |       |               |       |               |      
|                 | Exploration and Production |      | 2,352 |      | 1,785 |      | 2,557 |               | 31.8  | %             | (30.2
|                 | Refining and Marketing(2)  |      | 1,196 |      | 854   |      | 1,406 |               | 40.0  |               | (39.3
|                 | Chemicals                  |      | 155   |      | 97    |      | (55   | )             | 59.8  |               |     
|                 | Gas and Electricity(3)     |      | 212   |      | 633   |      | 1,062 |               | (66.5 | )             | (40.4
|                 | Corporate and others(4)    |      | (55   | )    | (46   | )    | (50   | )             |      |               |     
|                 |                            |      |       |      |       |      |       |               |       |               |      
|                 | Total                      |      | 3,860 |      | 3,323 |      | 4,920 |               | 16.2  |               | (32.5
|                 |                            |      |       |      |       |      |       |               |       |               |      

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|                  |                       | 2003  |       | 2002  |       | 2001  |       | 2003 vs. 2002 |       | 2002 vs. 2001 |      
|----------------- | --------------------- | ----- | ----- | ----- | ----- | ----- | ----- | ------------- | ----- | ------------- | -----
|
|Operating revenue |                       |       |       |       |       |       |       |               |       |               |      
|                  | Spain                 |       | 523   |       | 123   |       | 136   |               | 325.2 | %             | (9.6 
|                  | Argentina             |       | 3,981 |       | 3,814 |       | 4,785 |               | 4.4   |               | (20.3
|                  | Rest of Latin America |       | 1,260 |       | 934   |       | 801   |               | 34.9  |               | 16.6 
|                  | Rest of the World     |       | 655   |       | 709   |       | 1,583 |               | (7.6  | )             | (55.2
|                  |                       |       |       |       |       |       |       |               |       |               |      
|                  |                       | 6,419 |       | 5,580 |       | 7,305 |       | 15.0          |       | (23.6         | )    
|                  |                       |       |       |       |       |       |       |               |       |               |      

Operating
revenue for 2003 was €6,419 million, a 15.0% increase compared to €5,580 million in 2002. This increase was mainly due to the
significant increase in production volumes of 13.2%, mainly in Trinidad and Tobago and Argentina and to a lesser extent in Bolivia. Higher international oil prices

91

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and
the improvement of average gas realization prices were both contributing factors to the increase in operating revenue in 2003. During 2003, Repsol YPF obtained an average gas realization price of
US$37.88 per thousand cubic meters, compared to US$27.93 per thousand cubic meters in 2002. The increase in average gas realization prices mainly reflects higher gas realization prices in Argentina,
and the higher specific weight of sales from Trinidad and Tobago in total sales coupled with significantly higher international gas prices as compared to 2002 (Henry Hub). The average gas sale price
in Argentina was 23% higher compared to 2002, reflecting the progressive dollarization of a portion of internal sales arrangements with certain industrial exporting clients in Argentina as well as the
positive impact of the appreciation of the peso against the U.S. dollar. The average sale price of Repsol YPF's crude oil basket was US$25.7 per barrel, compared to US$20.9 per barrel in 2002. The
increase in operating revenues in Spain in 2003 was due to the change in criteria such that as of January 1, the results of operations of the sale of gas and the sale and transportation of LNG
are included in the results of operations of the Exploration and Production business area, while in 2002 they were included in the results of operations of the Gas and Electricity business area, as
well as a significant increase in the activity of such business area due to the commencement of operations of a third train at the Atlantic plant.

Operating
revenue for 2002 was €5,580 million, a 23.6% decrease compared to €7,305 in 2001. This decrease was mainly due to a decrease in the
realization price of Repsol YPF's crude oil basket from US$21.9 per barrel in 2001 to US$20.9 per barrel in 2002, and to a decrease in the average gas realization price from US$51.40 per thousand
cubic meters in 2001 to US$27.93 per thousand cubic meters in 2002. The decrease in the crude oil basket realization price reflects lower sale prices in Argentina, due to a 10% price discount below
international prices agreed between producers and the Argentinean refineries, and the higher relative weight of heavy crude oils in the basket after the sale of the assets in Indonesia. The decrease
in gas selling prices resulted mainly from the partial pass through of the effects of the peso devaluation to gas selling prices in Argentina. This reduction in selling prices was only partially
offset by a 18.6% increase in gas sales volumes in 2002.

|                 |                       | 2003  |       | 2002  |       | 2001  |       | 2003 vs. 2002 |       | 2002 vs. 2001 |      
|---------------- | --------------------- | ----- | ----- | ----- | ----- | ----- | ----- | ------------- | ----- | ------------- | -----
|
|Operating income |                       |       |       |       |       |       |       |               |       |               |      
|                 | Spain                 |       | (10   | )     | (18   | )     | (4    | )             |      | %             |     
|                 | Argentina             |       | 1,615 |       | 1,315 |       | 1,844 |               | 22.8  |               | (28.7
|                 | Rest of Latin America |       | 474   |       | 141   |       | 127   |               | 236.2 |               | 11.0 
|                 | Rest of the World     |       | 273   |       | 347   |       | 590   |               | (21.3 | )             | (41.2
|                 |                       |       |       |       |       |       |       |               |       |               |      
|                 |                       | 2,352 |       | 1,785 |       | 2,557 |       | 31.8          |       | (30.2         | )    
|                 |                       |       |       |       |       |       |       |               |       |               |      

Exploration
and Production operating income in 2003 increased 31.8% to €2,352 million from €1,785 million in 2002. This increase principally
reflects the increase in production, the higher average gas realization price and the increase in the average Repsol YPF crude oil basket realization price as described above.

Exploration
and Production operating income in 2003 was also positively impacted by the incorporation since the beginning of fiscal 2003 of the operating income from the sale of gas and
the sale and transportation of LNG, as well as the incorporation into Exploration and Production of the operating income of some of Repsol YPF's affiliates in Argentina, mainly Mega and Pluspetrol
Energy, which amounted to €142.3 million in 2003. In 2002 the results of operations of these activities were included in the results of operations of the Gas and Electricity
business area. The positive results contributed by these activities are mainly due to the increase in the volumes of LNG sold, reflecting the start of operations ahead of schedule of the third train
of liquefaction in Trinidad and Tobago and higher reference prices for natural gas (Henry Hub) in the United States.

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These
positive factors more than compensated for the negative effect of the appreciation of the euro against the U.S. dollar and the 16% increase in lifting costs per barrel equivalent
of produced petroleum to $1.72 per barrel of oil equivalent in 2003 as compared to $1.48 per barrel of oil equivalent in 2002 reflecting the accumulated inflation in Argentina and the appreciation of
the peso against the U.S. dollar. Lifting costs per barrel equivalent of produced petroleum in 2003 were nevertheless 33% lower than in 2001. Operating income was negatively affected by a change in
accounting criteria. As of January 1, 2003 Repsol YPF changed the internal accounting criteria for inter-company transactions between the Exploration and Production and the Refining and
Marketing business units in Argentina, resulting in inventories now being valued at production cost, which resulted in a negative adjustment of €80 million on Exploration and
Production operating income. During 2003 Repsol YPF paid a 20% export tax on crude oil in Argentina which was introduced in 2002, which amounted to $136 million.

Exploration
and Production operating income in 2003 does not reflect any capital gains from the sale of assets, while in 2002 Repsol YPF recognized capital gains of approximately
€50 million from asset sales in Indonesia and Spain (La Lora).

Exploration &
Production operating income in 2002 decreased 30.2% to €1,785 million from €2,557 million in 2001. This decrease
principally reflects the decrease in crude oil and gas realization prices in 2002 described under "Operating revenue" above, the imposition from the second quarter of 2002 of a new 20% tax on oil
exports in Argentina, the sale in January 2002 of assets in Indonesia (which contributed €211 million to 2001 operating income) and the inclusion in 2001 operating income
of capital gains of €201 million from asset sales in Egypt in 2001. This was partially offset by the pesification of part of the operating costs in Argentina, which resulted in
lower investment costs and operating costs in euros, capital gains of €50 million from the asset sales in Indonesia and Spain (La Lora) in 2002 and the reclassification in 2002
of income taxes paid in Dubai and Algeria. As from the first quarter of 2002, income taxes paid in Dubai and Algeria, which amounted to €150 million in 2002, are reflected under
income tax, as compared to €189.5 million of taxes paid in Dubai and Algeria in 2001, which were charged to Exploration & Production operating expense.



|                  |                       | 2003   |        | 2002   |        | 2001   |        | 2003 vs. 2002 |     | 2002 vs. 2001 |     
|----------------- | --------------------- | ------ | ------ | ------ | ------ | ------ | ------ | ------------- | --- | ------------- | ----
|
|Operating revenue |                       |        |        |        |        |        |        |               |     |               |     
|                  | Spain                 |        | 21,430 |        | 20,798 |        | 22,495 |               | 3.0 | %             | (7.5
|                  | Argentina             |        | 6,254  |        | 6,003  |        | 6,101  |               | 4.2 |               | (1.6
|                  | Rest of Latin America |        | 2,974  |        | 2,824  |        | 2,300  |               | 5.3 |               | 22.8
|                  | Rest of the World     |        | 1,822  |        | 1,664  |        | 1,595  |               | 9.5 |               | 4.3 
|                  |                       |        |        |        |        |        |        |               |     |               |     
|                  |                       | 32,480 |        | 31,289 |        | 32,491 |        | 3.8           |     | (3.7          | )   
|                  |                       |        |        |        |        |        |        |               |     |               |     

Refining
and Marketing operating revenue for 2003 was €32,480 million, a 3.8% increase compared to €31,289 million in 2002. This increase
was mainly due to higher sales of petroleum products: in Spain, sales of petroleum products increased 3%, in Argentina they increased 4% and in the other countries in which Repsol YPF operates, they
increased 6.9%. In addition, the recovery in commercial margins in Argentina was notable, though limited due in part to the price stability pacts in place throughout the year.

LPG
sales decreased by 1.3% mainly as a result of a reduction of 1.9% in sales in Spain, reflecting the increase in use of alternative energies, like natural gas and electricity, as well
as the growth of other competitors in the LPG market. Sales in Latin America declined slightly (0.8%) reflecting the lower demand in Argentina caused by the economic crisis offset in part by a strong
growth in Perú.

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Refining
and Marketing operating revenue for 2002 was €31,289 million, a 3.7% decrease compared to €32,491 million in 2001. This decrease
was mainly due to lower international product prices as overall sales volumes remained practically flat. In Spain sales volumes of refined products including exports, remained virtually constant,
whereas in Argentina sales volumes of refined products, including exports decreased by 2.6% due to the economic situation. Sales volumes of LPG in 2002 remained practically constant due to the
combination of a 3% drop in sales in Europe partially offset by a 6.3% increase in sales from Latin America. Lower LPG sales volumes in Europe mainly reflect a 4% decline in sales in Spain due to
competition from other energy sources (mainly power and natural gas), a loss of market share of approximately 2.6% to other bottled LPG operators and mild weather throughout the year. In Latin
America, the increase in LPG sales reflects the 12-month consolidation of our operations in Bolivia, organic business growth and higher volume sales in Peru. Partially offsetting this
increase was a 5.6% decrease in sales in Argentina, compared to overall market contraction estimated at 8%.

|                 |                       | 2003  |     | 2002 |     | 2001  |       | 2003 vs. 2002 |       | 2002 vs. 2001 |      
|---------------- | --------------------- | ----- | --- | ---- | --- | ----- | ----- | ------------- | ----- | ------------- | -----
|
|Operating income |                       |       |     |      |     |       |       |               |       |               |      
|                 | Spain                 |       | 677 |      | 659 |       | 1,167 |               | (2.7  | )%            | (43.6
|                 | Argentina             |       | 466 |      | 134 |       | 115   |               | 247.8 |               | 16.5 
|                 | Rest of Latin America |       | 41  |      | 51  |       | 101   |               | (19.6 | )             | (49.5
|                 | Rest of the World     |       | 12  |      | 10  |       | 23    |               | 20.0  |               | (56.5
|                 |                       |       |     |      |     |       |       |               |       |               |      
|                 |                       | 1,196 |     | 854  |     | 1,406 |       | 40.0          |       | (39.3         | )    
|                 |                       |       |     |      |     |       |       |               |       |               |      

Refining
and Marketing operating income in 2003 increased 40% to €1,196 million from €854 million in 2002, principally reflecting the
improvement in refining margins throughout 2003, as well as the improvements in the results of operations in Argentina in spite of the negative effects resulting from the appreciation of the euro
against the dollar.

Repsol
YPF's refining margins in 2003 increased by $1.64 per barrel to $3.19 per barrel, reflecting a recovery of international margins from the lows experienced in 2002 to
mid-cycle levels. In early 2003, margins increased due to cold weather in Europe and the United States, as well as a tight global inventory position. In the first quarter of 2003, margins
in Europe reached an all-time high.

The
operating margins of the Spanish marketing unit in 2003 were in line with margins in 2002. Operating margins of the Argentine marketing unit improved significantly in 2003 as a
consequence of the appreciation of the peso against the dollar and despite the price stability pacts in place throughout the year.

Bottled
LPG operating margins in Spain were affected negatively by the higher international prices for raw materials in the first quarter of 2003 because the current formula for maximum
prices for bottled LPG did not permit Repsol YPF to pass on the higher costs to the consumer and, therefore, margins declined in the first half of 2003. Margins recuperated in the second half of 2003
such that overall in 2003 bottled LPG margins in Spain were slightly higher (2%) year on year compared with 2002. Despite the loss of certain economies of scale due to the reduction in sales,
marketing costs, through which the Spanish Government recognizes the operating costs and compensates the different links in the production and supply chain, did not increase in 2003. In Latin America,
retail margins have increased in Argentina due to the fact that international prices and exchange rates movements were taken into consideration in the agreement on price stability, as well as in Chile
and Ecuador. Peru is the only country in Latin America in which Repsol YPF has been unable to transfer the increased costs of raw materials into a higher final sale price. Wholesale margins increased
in both Argentina and Bolivia due to high international prices.

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Refining
and Marketing operating income in 2002 decreased 39.3% to €854 million from €1,406 million in 2001, principally reflecting lower
refining margins and the effect of the deconsolidation of CLH, which was responsible for a decline of €173 million.

Repsol
YPF's refining margins in 2002 decreased by $1.59 per barrel to $1.55 per barrel, reflecting the deterioration of international margins to the lowest levels in recent years as a
result of high international prices of crude and low international demand. See Section 2.1.5 "Information on Repsol YPFRepsol YPFBusiness Environment." This decrease
in margins was partially offset by cost reductions brought about by Repsol YPF's cost-saving policy, helped by the devaluation of the peso. Margins showed some improvement in the fourth
quarter.

The
operating margins of the Spanish marketing unit remained basically stable. Operating margins of the Argentine marketing unit decreased in 2002 as compared to 2001, although during
the second half of the year the operating margins of the Argentine marketing unit grew due to successive price increases.

Bottled
LPG operating margins in Spain were helped by the lower cost of feedstock during the first nine months of 2002, although this trend reversed during the last quarter, and the time
lag in the revision of the maximum price formula to take into account such lower feedstock prices. In April 2002, the Spanish government revised the commercial margin factor in the pricing
formula, increasing the markup set in October 2000 by 12.9%, in recognition of the sustained cost increases in the LPG distribution business. Retail LPG operating margins in Latin America
weakened over the year, mostly affected by the situation in Argentina and higher international feedstock prices during the last quarter of the year. However, cost reduction in real terms, implemented
after the introduction of anti-crisis measures and the devaluation of the peso, almost fully compensated for lower margins.



|                  |           | 2003  |       | 2002  |       | 2001  |       | 2003 vs. 2002 |      | 2002 vs. 2001 |      
|----------------- | --------- | ----- | ----- | ----- | ----- | ----- | ----- | ------------- | ---- | ------------- | -----
|
|Operating revenue |           |       |       |       |       |       |       |               |      |               |      
|                  | Spain     |       | 1,774 |       | 1,714 |       | 1,837 |               | 3.5  | %             | (6.7 
|                  | Argentina |       | 466   |       | 395   |       | 518   |               | 18.0 |               | (23.8
|                  |           |       |       |       |       |       |       |               |      |               |      
|                  |           | 2,240 |       | 2,109 |       | 2,355 |       | 6.2           |      | (10.5         | )    
|                  |           |       |       |       |       |       |       |               |      |               |      

Chemicals
operating revenues for 2003 increased 6.2% to €2,240 million from €2,109 million in 2002. This increase reflects on one hand the
effect of a 13.6% increase in sales volumes and, on the other hand, higher sales prices for specific products in our chemical portfolio, despite the fact that weighted average sales prices decreased
due to the increase in sales volumes of lower-priced products. By geographical areas, operating revenues grew more in Argentina than in Spain due to the 224,000 tonne increase in sales volumes of
methanol, which represented nearly four times the volumes sold in 2002.

Chemicals
operating revenues for 2002 decreased 10.5% to €2,109 million from €2,355 million in 2001. This decrease reflects a reduction in
revenues from operations in Spain and Argentina, mainly as a result of lower international prices of certain products, principally ethylene, propylene and polyolefins in European markets, lower
revenues from Argentina due to the deconsolidation of Petroken and lower average prices of our sales mix in Argentina. Partially offsetting this decrease was a 4.5% increase in sales volumes. Lower
average prices of our sales mix in Argentina was mainly due to a reduction in higher-price products in our sales portfolio, reflecting the deconsolidation of Petroken, the discontinuation of sales of
oxo-alcohol, which from November 2001 has been produced for a third party

95

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under
a tolling manufacturing agreement, and increased sales volumes of lower-price products from the ammonia/urea and methanol units.

|                 |  | 2003 |  | 2002 |  | 2001 |   | 2003 vs. 2002 |   | 2002 vs. 2001
|---------------- |  | ---- |  | ---- |  | ---- | - | ------------- | - | -------------
|
|Operating income |  |      |  |      |  |      |   |               |   |              
|Spain            |  | 43   |  | 41   |  | (41  | ) | 4.9           | % |             
|Argentina        |  | 112  |  | 56   |  | (14  | ) | 100.0         |   |             
|                 |  |      |  |      |  |      |   |               |   |              
|                 |  | 155  |  | 97   |  | (55  | ) | 59.8          |   |             
|                 |  |      |  |      |  |      |   |               |   |              

Chemicals
operating income for 2003 increased 59.8% to €155 million from €97 million in 2002, mainly due to higher margins in basic
petrochemicals and certain derivative products in Latin America (urea and methanol), as well as higher sales volumes. 2003 represented a record year for sales volumes, reaching 4 million
tonnes, an increase of 13.6% compared to 2002, and of particular note was the 224,000 tonne increase in sales of methanol (which represented an increase of 378.4%).

Average
international margins in 2003 can be characterized as medium-low cycle, slightly higher than margins in the prior year. Compared to 2002, the higher margins for urea
and methanol stand out due to the higher growth rate of prices of natural gas in the United States than in Argentina. Natural gas is the raw material for these products and important increases have
effects on pricing. In addition, in the first half of 2003, basic chemical margins improved due to the improvement in reference international prices.

Chemicals
operating income rose to €97 million in 2002 following a loss of €55 million in 2001, mainly due to higher operating efficiency at
new units started up in recent years, improvements in the margins for certain derivative products, a more favorable sales mix toward higher-margin products and successful cost-saving
efforts. In addition, our products from Argentina have enjoyed greater competitiveness as a result of the devaluation of the Argentine peso, which has lowered our fixed and variable costs.

Although
margins showed two distinct trends over the course of 2002, average international margins remained at low-cycle industry levels. The period from January to September
was characterized by an improvement in international margins as clients were normalizing inventory levels, and the fourth quarter was marked by smaller margins as a result of weakened demand caused by
economic uncertainty.



|                  |                       | 2003  |       | 2002  |       | 2001  |       | 2003 vs. 2002 |       | 2002 vs. 2001 |      
|----------------- | --------------------- | ----- | ----- | ----- | ----- | ----- | ----- | ------------- | ----- | ------------- | -----
|
|Operating revenue |                       |       |       |       |       |       |       |               |       |               |      
|                  | Spain                 |       | 1,252 |       | 2,627 |       | 4,634 |               | (52.3 | )%            | (43.3
|                  | Argentina             |       | 44    |       | 76    |       | 789   |               | (42.1 | )             | (90.4
|                  | Rest of Latin America |       | 163   |       | 394   |       | 436   |               | (58.6 | )             | (9.6 
|                  | Rest of the World     |       | 27    |       | 13    |       | 41    |               | 107.7 |               | (68.3
|                  |                       |       |       |       |       |       |       |               |       |               |      
|                  |                       | 1,486 |       | 3,110 |       | 5,900 |       | (52.2         | )     | (47.3         | )    
|                  |                       |       |       |       |       |       |       |               |       |               |      

Gas
and Electricity operating revenues in 2003 decreased by 52.2% to €1,486 million from €3,110 million in 2002. This decrease was mainly
due to the change in consolidation of Gas Natural from full consolidation until May 2002 to proportional integration thereafter and the change in the consolidation method of Enagas within Gas
Natural's accounts from full consolidation until July 2002 to the equity method thereafter; the change in the compensation system for regulated activities in Spain in February 2002,
which resulted in stable revenues from these activities throughout the year compared to the relatively higher revenues in the first two months of 2002 prior to the regulatory change (See

96

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Section 2.5
"Seasonality"); the reclassification of revenues from certain affiliated companies in Latin America and the appreciation of the euro relative to the U.S. dollar. This decrease was
partially offset by a 12.9% increase in sales volumes as a consequence of sales volume growth across all regions, in particular in the United States. The slight increase in sales volumes in Spain
reflects the positive results of the Spanish gas trading business and higher sales to thermal power generators. The marginal increase in sales volumes in Latin America was mainly due to the increase
in the number of clients and the economic recovery that took place throughout the region.

The
total liberalization of the Spanish gas market in 2003 provided by Royal Decree Law 6/2000 has allowed all consumers to freely choose between the regulated market or the unregulated
market, where they can choose their gas supplier. In 2003, the unregulated market represented approximately 70% of the total Spanish gas market, as compared to 55% in 2002. See Section 2.3.1.3
"Information on Repsol YPFRegulation of the Petroleum IndustrySpainNatural Gas System." Gas Natural's market share of the unregulated market, which it holds
through Gas Natural Comercializadora, S.A., decreased to approximately 58% in 2003 from 63% in 2002. In 2003, sales of Gas Natural in the unregulated Spanish market represented 51% of Gas Natural's
gas sales in Spain, as compared to 39% in 2002. The transfer of clients from the regulated market, where Gas Natural's revenues consist of gas sales at regulated tariffs, to the unregulated market,
where Gas Natural's revenues consist of sales at unregulated prices plus tolls for the use of its gas network, did not have a material impact on Repsol YPF's 2003 operating revenues or operating
income from gas and electricity operations and is not expected to have a material impact in 2004 because the loss of market share has been more than compensated by the increase in the size of the
market itself, which has permitted and, Repsol YPF believes, will continue to permit Repsol to grow its sales volumes. Repsol YPF believes that current tolls, which are fixed by law, will allow Repsol
YPF to recover its investment and further develop its gas infrastructure.

In
the unregulated electricity market, Gas Natural Comercializadora maintained a market share of almost 5% in 2003.

Gas
and Electricity operating revenues in 2002 decreased by 47.3% to €3,110 million from €5,900 million in 2001. This decrease was mainly
due to the change in consolidation of Gas Natural from full consolidation until May 2002 to proportional consolidation thereafter and the change in the consolidation method of Enagas within Gas
Natural's accounts from full consolidation until July 2002 to the equity method thereafter. The decrease was also due to the reduction in gas selling prices in Argentina as a result of the peso
devaluation. This was partially offset
by a 13% increase in sales volumes to 26.87 billion cubic meters in 2002, mainly in Latin America (except Argentina) and in Spain. The increase in Spanish sales volumes reflects the positive
results of the Spanish gas trading business and higher sales to thermal power generators.

The
further liberalization of the Spanish gas market in 2002 provided by Royal Decree Law 6/2000 allowed some industrial clients to switch from the regulated market to the unregulated
market (where they can choose their gas supplier), which in 2002 represented 55% of the total Spanish gas market, as compared to 38% in 2001. As of January 1, 2003, all consumers may freely
choose their natural gas supplier, as opposed to only industrial consumers. See Section 2.3.1.3 "Information on Repsol YPFRegulation of the Petroleum
IndustrySpainNatural Gas System." Gas Natural's market share of the unregulated market, which it holds through Gas Natural Comercializadora, S.A., decreased to 63% from 80%
in 2001. In 2002, sales of Gas Natural in the unregulated Spanish market represented 39% of Gas Natural's gas sales in Spain, as compared to 33% in 2001. The transfer of clients from the regulated
market to the unregulated market did not have a material impact on Repsol YPF's 2002 revenues or net income from gas and electricity operations.

97

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In the unregulated electricity market, Gas Natural Comercializadora obtained a market share of approximately 4% in 2002 as compared to a market share of 3% in 2001.

|                 |                       | 2003 |     | 2002 |     | 2001  |     | 2003 vs. 2002 |       | 2002 vs. 2001 |      
|---------------- | --------------------- | ---- | --- | ---- | --- | ----- | --- | ------------- | ----- | ------------- | -----
|
|Operating income |                       |      |     |      |     |       |     |               |       |               |      
|                 | Spain                 |      | 161 |      | 506 |       | 791 |               | (68.2 | )%            | (36.0
|                 | Argentina             |      | 9   |      | 34  |       | 159 |               | (73.5 | )             | (78.6
|                 | Rest of Latin America |      | 16  |      | 27  |       | 33  |               | (40.7 | )             | (18.2
|                 | Rest of the World     |      | 26  |      | 66  |       | 79  |               | (60.6 | )             | (16.5
|                 |                       |      |     |      |     |       |     |               |       |               |      
|                 |                       | 212  |     | 633  |     | 1,062 |     | (66.5         | )     | (40.4         | )    
|                 |                       |      |     |      |     |       |     |               |       |               |      

Gas
and Electricity operating income in 2003 decreased by 66.5% to €212 million from €633 million in 2002. This decrease was mainly due to
the full consolidation of Gas Natural until May 2002 and Enagas until July 2002, the change in the compensation system for these activities in Spain in February 2002, which
resulted in stable revenues from these activities throughout the year compared to the relatively higher revenues in the first two months of 2002 prior to the regulatory change, the reclassification of
revenues from certain affiliated companies in Latin America and the appreciation of the euro relative to the U.S. dollar.

Gas
and Electricity operating income in 2002 decreased by 40.4% to €633 million from €1,062 million in 2001. This decrease was mainly due to
the change in the consolidation of Gas Natural, from the global consolidation in 2001 to the proportional integration of the remaining 24.04% interest in Gas Natural after the sale of a 23% interest
in May 2002, the deconsolidation of Enagas in July 2002 (€23 million) and the impact of the peso devaluation on Argentine gas sales margins, which in
January 2002 were fixed by the Argentine government in pesos pursuant to the Emergency Law. As gas sales margins were fixed pursuant to emergency measures adopted by the Argentine government,
it is expected that at some point in the future the restrictions will be lifted.



The following table provides a breakdown of extraordinary income and loss items for 2003, 2002 and 2001. These items are required to be classified as
extraordinary items under Spanish GAAP but would not be so classified under U.S. GAAP.

|                            |                                                                  | Year Ended December 31,         |     
|--------------------------- | ---------------------------------------------------------------- | ------------------------------- | ----
|
|
|Extraordinary income (Loss) |                                                                  |                                 |     
|                            | Labor force restructuring                                        |                                 | (32 
|                            | Provision for write-down of fixed assets                         |                                 | 271 
|                            | Provision for losses of immaterial subsidiaries not consolidated |                                 | (22 
|                            | Provision for tax contingencies                                  |                                 | (48 
|                            | Provision for other contingencies                                |                                 | (339
|                            | Reversal of provisions                                           |                                 | 36  
|                            | Subsidies and other earnings credited to income                  |                                 | 5   
|                            | Gain on disposal of stakes in companies and fixed assets         |                                 | 83  
|                            | Other extraordinary items, net                                   |                                 | (108
|                            |                                                                  |                                 |     
|                            |                                                                  | Net Extraordinary Income/(Loss) |     
|                            |                                                                  |                                 |     

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The following table provides a breakdown of the expenses incurred in connection with labor force restructuring.

|                                                            |                                  | Year Ended December 31,
|----------------------------------------------------------- | -------------------------------- | -----------------------
|
|
|Extraordinary expenses                                      |                                  |                        
|                                                            | Repsol Petróleo, S.A.            |                        
|                                                            | Repsol Butano, S.A.              |                        
|                                                            | Repsol Química, S.A.             |                        
|                                                            | Repsol Comercial, S.A.           |                        
|                                                            | Repsol Exploración, S.A.         |                        
|                                                            | CLH                              |                        
|                                                            | YPF, S.A.                        |                        
|                                                            | Repsol YPF, S.A.                 |                        
|                                                            | Other companies                  |                        
|                                                            |                                  |                        
|                                                            |                                  | 31.8                   
|                                                            |                                  |                        
|Amount credited to labor force restructuring allowance      |                                  | 1.5                    
|Cash payments during year                                   |                                  |                        
|                                                            | Provided for in the current year |                        
|                                                            | Provided for in prior periods    |                        
|                                                            |                                  |                        
|                                                            |                                  | 31.3                   
|                                                            |                                  |                        
|Year-end balance in allowance for labor force restructuring |                                  | 11.9                   

Since
2000, Repsol YPF has been a party to a labor restructuring agreement with all labor unions representing employees in Spain, which was approved by the Ministry of Labor and which
covered all middle management personnel with 55 or more years of age from 2000 to 2002. Approximately 250 employees participated in such agreement and retired from Repsol YPF during the period 2000
- 2002. The extraordinary expense incurred in 2003 related to early retirements entered into on individual bases and not as part of any labor restructuring agreement or related
arrangement.



In 2003, Repsol YPF recorded the reversal of provisions of €275 million previously recorded for impairments of certain fixed assets due to
the economic recovery in the value of the assets associated with hydrocarbon reserves against which provisions had been previously taken. In 2002 and 2001, Repsol YPF recorded provisions for
write-down of fixed assets, principally related to the impairment of fixed assets associated with hydrocarbon reserves, as a result of comparing the market value of or future cash flows to
be derived from proved and unproved oil and gas reserves with the net book values of the assets associated therewith. In 2002, Repsol YPF recorded impairment charges totaling
€410 million, of which €206 million related to Mene Grande, an oil field in Venezuela, as a result of the decrease in proved reserves and an increase in
the royalties paid on oil and gas produced in Venezuela, and €192 million related to Aguarague, an oil field in Argentina, also due to a decrease in proved reserves. In 2001,
Repsol YPF recorded impairment charges totaling €655 million, principally related to oil fields in Argentina due to the pesification of domestic gas selling prices, the oil
export tax of 20% and the related reduction of 10% on domestic oil selling prices. See item C.3 in Note 2 to the Consolidated Financial Statements. See Section 3.2.3
"Factors Affecting Repsol YPF's Consolidated Results of OperationsCritical Accounting Policies" above.

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Repsol YPF's tax affairs are complex and subject in some cases to uncertainties regarding the interpretation or application of the tax law. Accordingly, from time
to time the group makes provisions for its best estimate of the probable outcome from the finalization of its tax liabilities. Reductions in the allowance for tax contingencies are separately reported
in the Consolidated Financial Statements (Note 14). See "Reversal of provisions" below for the reductions arising in each of the three years ended December 31, 2003.



This caption includes amounts reflecting Repsol YPF's best estimate of likely losses and covers a range of different matters across the Group. The most
significant items in 2003 were the provision related to the valuation of a take or pay commitment (see Section 2.2.1.3." Exploration, Development, Acquisitions and
ProductionEcuador") to transport certain quantities of crude oil through an oil pipeline in Ecuador (€162 million), the extraordinary provision related to the
modification of certain actuarial variables used to calculate the provision required for pension obligations in respect of employees of Maxus Energy Corporation, an affiliate of YPF
(€27 million), the provision related to litigation (€35 million), the plant stoppage provision (€30 million) and the provision
related to the key employee loyalty allowance (€28 million).

The
most significant provisions for other contingencies in 2002 were an allowance for environmental contingencies (€22 million); an increase in the allowance for
pension plans of Maxus Energy Corporation, a subsidiary of YPF (€41 million); an increase in the allowance for litigation contingencies (€32 million); an
allowance to cover the effect of the devaluation of the Argentine peso on certain companies transferred to Repsol YPF by YPF in 2001 during the 12-month period following such transfers
(€27 million); and an allowance for extraordinary repairs (€25 million).

The
most significant item in 2001 was a €123 million allowance for contingencies derived from the crisis in Argentina.



In 2003, 2002 and 2001, the main item under this heading mainly corresponded to the application of tax provisions as a result of legal decisions in favor of
Repsol YPF, which amounted to €15 million, €15 million and €12 million in 2003, 2002 and 2001, respectively.

Under
Spanish GAAP increases and decreases in provisions are reported separately whereas under U.S. GAAP it is common practice for only the net adjustment to be reported.



Under Spanish GAAP subsidies received from the Spanish Government are allocated to income over the useful lives of the project to which they relate and reported
as an extraordinary item.



The most significant gains during 2003 resulted from the sale of 6.78% of CLH to Oman Oil Company (€71 million). This transaction completed
the disposal process established in Royal Decree 6/2000, which prohibited any one shareholder from holding more than a 25% interest in CLH and also prohibited Repsol YPF, Cepsa and BP from
collectively holding more than a 45% interest.

The
most significant gains during 2002 resulted from the sale of 23% of Gas Natural (€1,097 million), an aggregate interest in CLH of 29.67%
(€293 million), an indirectly held interest of 59.1% in Enagas through Gas Natural (€97 million) and the sale of 13.25% of Gas Natural
México by Gas Natural (€105 million). The most significant gains during 2001 resulted from the sale of

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Electricidad
Argentina S.A. (€124.1 million), the sale of the 3.07% participation of CLH in Petronor (€37.9 million) and real estate sales by Repsol
Petróleo (€76.5 million) and Gas Natural (€32.0 million).



This caption generally includes a large number of individually immaterial items. In 2003, the main items corresponded to the non-recurring effect of
certain amortizations (€72 million) derived from the partial reversal of the provision for depreciation of certain exploration and production assets during 2003.

In
2002, the main item corresponded to €90 million of losses related to operations that occurred prior to 2002 and were confirmed after 2001. In 2001, the main
item corresponded to €46 million of provisions resulting from the Argentine crisis.



Note 14 of the Consolidated Financial Statements discloses the movements in Other Provisions. A substantial proportion of these movements reflect
Extraordinary Income (Loss) items described above.

In
2003, the total amount allocated under this caption was €384 million, of which €290 million has been charged to extraordinary income,
€12 million to interest income and €82 million to operating income. The most important charges to operating income correspond to allowances for litigation
and environmental contingencies (€41 million) and plant stoppages provisions (€18 million). The amounts credited to results correspond to litigation and
environmental contingencies and plant stoppages provisions (€75 million).

In
2002, the total amount allocated under this caption was €300 million, of which €149 million has been charged to extraordinary income,
€94 million to interest income and €57 million to operating income. The most important charges to operating income correspond to allowances for litigation
and environmental contingencies (€32 million). The main item reported under interest income was a €87 million allowance for the exercise of the swaption
sold related to the 1997 preference shares issue, which was charged against interest income. See Notes 12 and 23 to the Consolidated Financial Statements. The amounts credited to results correspond to
provisions for doubtful accounts and environmental contingencies (€79 million).

In
2001, the total amount allocated under this caption was €378 million, of which €159 million has been charged to extraordinary income and
€219 million to operating income. The most important charge to operating income corresponds to the situation in Argentina (€181 million). The amounts
credited to results correspond to environmental contingencies (€15 million), plant stoppages provisions (€8 million) and various other amounts.



Repsol
YPF has a substantial portfolio of liquid financial investments (shown in its balance sheet as temporary cash investments) and other long-term financial investments
included as non-current assets. These items, which are readily convertible into cash, and cash are deducted from total debt to arrive at a "net debt" amount.

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The
total debt and net debt at December 31, 2003, 2002 and 2001 were as follows:

|                    |                                 | December 31, |       
|------------------- | ------------------------------- | ------------ | ------
|
|
|Financial condition |                                 |              |       
|                    | Long-term debt                  |              | 6,454 
|                    | Short-term debt                 |              | 4,369 
|                    |                                 |              |       
|                    |                                 | Total debt   |       
|                    |                                 |              |       
|Less:               |                                 |              |       
|                    | Cash                            |              | (247  
|                    | Temporary cash investments      |              | (5,031
|                    | Long-term financial investments |              | (498  
|                    |                                 |              |       
|                    |                                 | Net debt     |       
|                    |                                 |              |       

Repsol
YPF's capitalization and adjusted capitalization at December 31, 2003 and 2002 and 2001 are as follows:

|    |  |                                                         |  | December 31, |  
|--- |  | ------------------------------------------------------- |  | ------------ | -
|
|
|    |  | Short-term debt                                         |  | 4,369        |  
|    |  | Long-term debt                                          |  | 6,454        |  
|    |  |                                                         |  |              |  
|I   |  | Total Debt                                              |  | 10,823       |  
|    |  |                                                         |  |              |  
|    |  | Minority interests                                      |  | 4,054        |  
|    |  | Equity                                                  |  | 13,632       |  
|II  |  | Capitalization                                          |  | 28,509       |  
|III |  | Less                                                    |  |              |  
|    |  | Cash and temporary cash investments                     |  | (5,278       | )
|    |  | Long-term financial investments                         |  | (498         | )
|IV  |  | Plus                                                    |  |              |  
|    |  | Subsidies and deferred revenues                         |  | 336          |  
|    |  | State financing of investments in exploration           |  | 3            |  
|V   |  | Adjusted Capitalization                                 |  | 23,072       |  
|    |  |                                                         |  |              |  
|    |  | Total Debt to Capitalization Ratio (I / II)             |  | 38.0         | %
|    |  | Net Debt to Adjusted Capitalization Ratio (I - III / V) |  | 21.9         | %

During
2002 and 2003, Repsol YPF's net debt-to-adjusted capitalization ratio continued its decline to 29.2% at December 31, 2002, with total outstanding
net debt of €7,472 million at that date, and to 21.9% at December 31, 2003, with total
outstanding net debt of €5,047 million at that date. From 1999 until December 31, 2003 Repsol YPF has made total divestments of €6,809 million,
significantly exceeding the initial plan of selective divestments of €4,500 million.

Repsol
YPF's management believes that "net debt" and "adjusted capitalization" constitute material information to investors because they form an integral part of the Group's internal
reporting and planning process as relevant measures of the Group's liquidity and creditworthiness (particularly when combined in the net debt-to-adjusted capitalization ratio).
Consistent with this approach, Repsol YPF's 2003 - 2007 Strategic Plan announced in November 2003, sets financial strength targets for the

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period
which are expressed in terms of the net debt-to-adjusted capitalization ratio. This is also consistent with the Group's financial structure and condition for the
following reasons:



Cash
flow from operating activities in 2003 was €5,373 million, as compared to €4,470 million in 2002. Cash flow from operating activities
in 2003 reflects negative adjustments to net income for gains on asset disposals of €56 million, as compared to negative adjustments to net income for gains on asset disposals
of €1,270 million in 2002. Cash flow from operating activities in 2003 includes net income before minority interests and gains on asset disposals of
€2,174 million, as compared to €1,016 million in 2002 and depreciation and amortization and non-cash provisions of
€2,303 million, as compared to €3,807 million in 2002. Cash flow from operating activities in 2003 increased by €896 million to
meet Repsol YPF's working capital requirements, as compared to a reduction of €353 million in 2002.

Cash
flow from investing activities in 2003 reflected a net cash outflow of €3,633 million, as a result of investments in fixed assets and other assets of
€3,861 million being offset by proceeds from disposals of €228 million. Cash flow from investing activities in 2002 reflected net cash outflows of
€195 million due to the large volume of disposals, which amounted to €2,558 million.

The
remaining free cash flow in 2003 was used to pay €634 million in dividends in 2004 relating to fiscal year 2003, as compared to
€476 million in dividends paid in 2002. The balance was used to reduce Repsol YPF's outstanding debt in each year.

The
following table shows the sources of net debt variation for 2003 and 2002.

|                                    |                                                              | 2003   |        | 2002    |       
|----------------------------------- | ------------------------------------------------------------ | ------ | ------ | ------- | ------
|
|Net debt at the beginning of period |                                                              | (7,472 | )      | (16,555 | )     
|                                    | Net cash provided by operating activities                    |        | 4,477  |         | 4,823 
|                                    | Divestments                                                  |        | 220    |         | 2,824 
|                                    | Capital expenses                                             |        | (3,642 | )       | (2,623
|                                    | Dividend paid                                                |        | (572   | )       | (549  
|                                    | Change in the consolidation method of Gas Natural and others |        | (175   | )       | 3,112 
|                                    | Variation in commercial working capital and other            |        | 842    |         | (585  
|                                    | Exchange rate translation effect                             |        | 1,275  |         | 2,081 
|                                    |                                                              |        |        |         |       
|Net debt at the end of period       |                                                              | (5,047 | )      | (7,472  | )     
|                                    |                                                              |        |        |         |       

On
July 17, 2000, Repsol International Finance issued $1.25 billion in aggregate principal amount of 7.45% global notes, due July 15, 2005. Payment of interest and
principal on the global notes is guaranteed by Repsol YPF. On May 5, 2000, Repsol International Finance issued €1.0 billion in aggregate principal amount of 6% bonds due
2010, guaranteed by Repsol YPF.

During
2001, Repsol International Finance issued debt denominated in euros guaranteed by Repsol YPF in the following amounts: on June 21, €325 million in
aggregate principal amount of 3.75% guaranteed notes due 2004 and €175 million in aggregate principal amount of 6% guaranteed

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notes
due 2010 and on December 4, €750 million in aggregate principal amount of 5.75% notes due 2006.

Additionally,
during 2001, Repsol International Capital issued preferred shares guaranteed by Repsol YPF in the following amounts: on April 24,
€1,000 million and on November 21, €2,000 million.

On
May 28, 2003, Repsol International Finance issued Euribor +100 bp notes due May 28, 2006 in an aggregate amount of €150 million, and on
July 22, 2003, it issued 5% guaranteed (by Repsol YPF) notes due 2013 in an aggregate principal amount of €1,000 million.

The
following table sets forth information with regard to our financial debt and preferred shares, detailed by currency, as of December 31, 2003:

|                 |       | Expected maturity date |       | 
|---------------- | ----- | ---------------------- | ----- | 
|
|
|
|Financial debt   |       |                        |       | 
|                 | US$   |                        | 3,209 | 
|                 | Euros |                        | 1,051 | 
|                 | Other |                        | 110   | 
|Preferred shares |       |                        |       | 
|                 | US$   |                        |      | 
|                 | Euros |                        |      | 



The
following table sets forth information with regard to Repsol YPF's contractual obligations for the years indicated below, as of December 31, 2003:

|                                                                                          |                        | Total          |            | Less than
1 year |         | 1 - 3 years |           | 3 - 5 years |           | More than
5 years
|----------------------------------------------------------------------------------------- | ---------------------- | -------------- | ---------- | ---------------- | ------- | ----------- | --------- | ----------- | --------- | -----------------
|
|Contractual obligations                                                                   |                        |                |            |                  |         |             |           |             |           |                  
|Total financial debt                                                                      |                        | 10,823,000     |            | 4,369,000        |         | 2,986,000   |           | 941,000     |           | 2,527,000        
|TransportTime charter fees                                                               |                        | 1,108,869      |            | 89,676           |         | 161,081     |           | 141,559     |           | 716,553          
|Operating leases                                                                          |                        | 623,577        |            | 73,644           |         | 149,163     |           | 108,628     |           | 292,142          
|Purchase obligations(1)                                                                   |                        | 16,817,523     |            | 1,412,231        |         | 2,322,577   |           | 1,855,514   |           | 11,227,201       
|                                                                                          | Purchases of services  |                | 2,621,165  |                  | 206,588 |             | 381,793   |             | 345,565   |                  
|                                                                                          | Investment commitments |                | 571,204    |                  | 222,955 |             | 302,299   |             | 44,376    |                  
|                                                                                          | Purchases of goods(2)  |                | 13,625,154 |                  | 982,688 |             | 1,638,485 |             | 1,465,573 |                  
|                                                                                          |                        | Petrochemicals |            | 88,051           |         | 41,546      |           | 43,951      |           | 2,554            
|                                                                                          |                        | LPG            |            | 20,312           |         | 9,513       |           | 10,799      |           | 0                
|                                                                                          |                        | Natural gas(3) |            | 13,321,744       |         | 916,043     |           | 1,551,848   |           | 1,434,364        
|                                                                                          |                        | Electricity    |            | 116,813          |         | 8,426       |           | 17,414      |           | 17,561           
|                                                                                          |                        | Nitrogen       |            | 8,217            |         | 2,206       |           | 4,566       |           | 1,187            
|                                                                                          |                        | Steam          |            | 70,017           |         | 4,954       |           | 9,907       |           | 9,907            
|Other Long-term liabilities reflected on Repsol YPF's Balance Sheet under Spanish GAAP(4) |                        | 6,270,000      |            | 5,779,000        |         | 254,244     |           | 13,844      |           | 222,912          
|                                                                                          |                        |                |            |                  |         |             |           |             |           |                  
|                                                                                          |                        | Total          |            | 35,642,969       |         | 11,723,551  |           | 5,873,065   |           | 3,060,545        
|                                                                                          |                        |                |            |                  |         |             |           |             |           |                  

---

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The
following table sets forth information with regard to Repsol YPF's sales commitments for the years indicated below, as of December 31, 2003:

|                                                |       | Total      |            | Less than
1 year |           | 1 - 3 years |           | 3 - 5 years |           | More than
5 years
|----------------------------------------------- | ----- | ---------- | ---------- | ---------------- | --------- | ----------- | --------- | ----------- | --------- | -----------------
|
|Sales Commitments                               |       |            |            |                  |           |             |           |             |           |                  
|Crude oil sales                                 |       | 386,193    |            | 87,613           |           | 155,248     |           | 140,983     |           | 2,349            
|Natural gas sales                               |       | 14,019,072 |            | 1,281,741        |           | 2,088,030   |           | 1,708,311   |           | 8,940,990        
|LPG sales                                       |       | 42,813     |            | 12,586           |           | 25,275      |           | 4,952       |           |                 
|Oil Transport                                   |       | 145,197    |            | 12,325           |           | 14,914      |           | 14,914      |           | 103,044          
|Other petroleum and petrochemical product sales |       | 1,493,547  |            | 501,346          |           | 613,863     |           | 154,717     |           | 223,621          
|Other revenues                                  |       | 110,396    |            | 20,886           |           | 42,773      |           | 10,757      |           | 35,980           
|                                                |       |            |            |                  |           |             |           |             |           |                  
|                                                | Total |            | 16,197,218 |                  | 1,916,497 |             | 2,940,103 |             | 2,034,634 |                  
|                                                |       |            |            |                  |           |             |           |             |           |                  

Repsol
YPF has additional commitments under derivative contracts and guarantees. For a discussion of these additional commitments see Section 9 "Quantitative and Qualitative
Disclosure About Market Risk" and Section 3.8.1.5 "Guarantees Provided" below.



Other
than the transactions below, Repsol YPF does not have any other material transactions with non-consolidated special purpose entities. Repsol YPF does not have
majority-owned subsidiaries that are not included in its financial statements or any other interest in or relationships with any other special purpose entities that are not reflected in its financial
statements.



Since 1996, YPF has entered into three forward oil sale agreements, which we refer to as the FOS transactions in this annual report. These agreements were entered
into in order to obtain cash to fund operations in advance of the actual sale and delivery of oil. Under these transactions, YPF was advanced $381 million in 1996, $300 million in 1998
and $383 million in 2001, against future deliveries of oil. YPF's obligations under the FOS transactions are recorded as a liability in the consolidated balance sheet as customer advances and
will be reduced and taken to income as the physical deliveries are made over the term of the contracts. As of December 31, 2003, the amount of FOS customer advances recorded on our consolidated
balance sheet was €309 million. The obligations to deliver crude oil under the agreements entered into in 1996 have been satisfied in their entirety, with the last delivery
having taken place in October 2003. The obligations to deliver crude oil under the 1998 and 2001 agreements will continue through June 2008 and December 2008, respectively.

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The
structure of each of these FOS transactions is similar. YPF enters into a forward oil sale agreement that calls for the future delivery of oil for the life of the contract. YPF is
paid in advance for the future delivery of oil. The price of the oil to be delivered is calculated using various factors, including the expected future price and quality of the crude oil being
delivered. The counterparty or assignee to each oil supply agreement is a special purpose entity incorporated in the Cayman Islands, which finances itself as described below. The oil to be delivered
under each supply agreement is subsequently sold in the open market.

YPF
is exposed to any change in the price of the crude oil it will deliver in the future under the FOS transactions. YPF's exposure derives from various crude oil swap agreements under
which YPF pays a fixed price with respect to the nominal amount of the crude oil sold, and receives the variable market price of such crude oil. See Section 9.1.2 "Quantitative and Qualitative
Disclosure About Market RiskOil Price ExposureCrude Oil Price Swaps", and Section 5.3 "Major Shareholders and Related Party TransactionsRelated Party
Transactions." See Note 27 to the Consolidated Financial Statements for a description of the treatment of the FOS transactions under U.S. GAAP.

The
following provides an overview of the outstanding FOS transactions:

|                                                                      |  | FOS II                                      |  | FOS III(2)                                                             
|--------------------------------------------------------------------- |  | ------------------------------------------- |  | -----------------------------------------------------------------------
|Date                                                                  |  | June 24, 1998                               |  | December 31, 2001                                                      
|Net proceeds(1)                                                       |  | $299,967,289                                |  | $382,693,787                                                           
|SPE                                                                   |  | Oil Enterprises Ltd.                        |  | Oil International Limited                                              
|SPE Debt                                                              |  | $315 million
6.239% notes                   |  | $200 million 3.98% notes/
$162.7 million 3.90% notes                   
|Purchaser                                                             |  | Morgan Guaranty Trust                       |  | Morgan Stanley Capital Group Limited (UK)                              
|Marketer                                                              |  | YPF                                         |  | Repsol YPF Trading & Transport, S.A.                                   
|Guarantee/hedge                                                       |  | Oil Price Hedge
Agreement/Default Insurance |  | Oil Price Hedge Agreement/Contingent
Supply Agreement/Default Insurance
|Total crude oil barrels to be delivered over the life of the contract |  | 23,933,985                                  |  | 24,105,532                                                             
|Average crude oil barrels per month                                   |  | 201,126                                     |  | 287,054                                                                
|Term of transaction                                                   |  | 10 years                                    |  | 7 years                                                                

---

Repsol
YPF has guaranteed various of YPF's obligations under the FOS III structure through a contingent supply agreement. Under the contingent supply agreement, Repsol YPF may be
required to make up for any shortfall in the crude oil deliveries that YPF is required to make under the forward oil sale agreement. Additionally, if certain events of default occur under the
contingent supply agreement, including failure to make up for YPF's delivery shortfalls, Repsol YPF may be required to

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deliver
at one time all the crude oil that YPF was to deliver during the life of the forward oil sale agreement. If Repsol YPF is not able to deliver the amount of barrels not delivered by YPF, then
Repsol YPF will be required to pay in cash an amount equivalent to the barrels of crude oil not yet delivered. Repsol YPF may also be required to deliver similar amounts of crude oil or pay similar
amounts in cash if YPF decides to terminate the forward oil sale agreement and is not able to satisfy the amounts due and unpaid by YPF. The contingent supply agreement includes cross-default
provisions that may be triggered if an event of default occurs with respect to the indebtedness of Repsol YPF or certain of its subsidiaries equal to or exceeding $30 million. Under the
contingent supply agreement, Repsol YPF has also agreed to indemnify the FOS III special purpose entity for certain taxes it may be required to reimburse to the holders of the notes issued by the
special purpose entity and for any make-whole premium it may be required to pay in case of early redemption of those notes. Also in connection with FOS III, Repsol YPF has guaranteed YPF's
obligations under the crude oil swap agreement related to FOS III.

In
December 2002, FOS III was refinanced through the issuance of two series of notes by a new special purpose entity. One of the series was guaranteed by default insurance policy
issued by a third-party insurer. The proceeds from the insured and the uninsured notes were used to repay the original debt of the FOS III special purpose entity issued in December 2001 and to
repurchase its preferred shares. The underlying oil supply contracts were assigned to the new special purpose entity. In February 2003, the new special purpose entity retired and replaced the
uninsured notes by issuing a second series of insured notes guaranteed by a different third-party insurer. Repsol YPF has agreed to reimburse each insurer for any payment made under any of the default
insurance policies covering the notes and has also guaranteed the special purpose entity's obligations in connection with such insurance policies. Repsol YPF has also provided indemnities and
warranties to the underwriter of the notes. Neither Repsol YPF nor any of its affiliates received any proceeds from a third party or recognized any income as a direct result of this refinancing.

The
third-party insurer guaranteeing the series of FOS III insured notes issued in December 2002 is also a reinsurer of the insurance policy issued under FOS II. As part of the
refinancing of FOS III, Repsol YPF agreed to reimburse this third-party insurer for any payment made by it as reinsurer in connection with the FOS II default insurance policy.

YPF's
monthly crude oil delivery obligations under the FOS transactions represent 6.87% of its monthly production as of December 31, 2003. Total remaining crude delivery
obligations under the FOS transactions represent 20.20% of YPF's 2003 crude oil annual production and 14.27% of Repsol YPF's 2003 crude oil annual production. Total possible contingencies payable in
cash by YPF under the FOS transactions have been estimated at approximately $531 million. Under an early termination scenario, if YPF is not able to deliver the required number of barrels from
its own production, YPF may be required to purchase oil of similar quality in the open market.

On
March 8, 2004, the Argentine tax authorities formally communicated to YPF their view that the FOS I and FOS II transactions should have been treated as financial transactions
carried out in Argentina and, as such, should have been subject to the relevant tax withholdings, which would amount to approximately US$15 million (€12 million) plus
interest and fines. On April 22, 2004, YPF presented their defense, rejecting the claim and arguing their position.



On November 23, 2001, Repsol YPF entered into an agreement with Tecnicontrol y Gestión Integral, S.L., a wholly-owned investee of Caja de
Ahorros y Monte de Piedad de Madrid, pursuant to which it acquired an irrevocable option, with a penalty for non-exercise, to purchase a 7,500 m2land lot acquired by
Tecnicontrol from the Real Madrid Football Club. Tecnicontrol's purchase price for this land lot, located in a former sports complex on the Paseo de la Castellana in Madrid, was
€188 million. Repsol YPF paid €1.2 million for the irrevocable purchase option, which was originally due by

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December 29,
2003, but has been extended until March 30, 2005 at an additional cost of €120,000. The exercise price is the sum of the principal, interest, and related
financial and other costs borne by Tecnicontrol y Gestión Integral in connection with the acquisition and subsequent management of this land lot. Repsol YPF estimates the exercise price
at December 31, 2003 would have been approximately €200 million. If Repsol YPF does not exercise the purchase option, Repsol YPF will have to pay a penalty based on the
difference between the option exercise price and the price at which Tecnicontrol is able to sell the land, provided that the latter amount is lower than the option exercise price. The purpose of these
arrangements was to provide Repsol YPF with the flexibility to acquire additional land near its current headquarters in Madrid without incurring the purchase price of such land at the time the
agreement was entered into. As of December 31, 2003, the effect of this transaction has been reflected in Repsol YPF's consolidated financial statements.



Our
financial debt generally contains customary covenants for contracts of this nature, including negative pledge, material adverse change and cross-default clauses.

Issues
of unsecured and unsubordinated bonds representing €4,800 million of the total of €6,030 million at December 31, 2003 of
marketable securities issued by Repsol International Finance, B.V., guaranteed by Repsol YPF, contain clauses whereby Repsol YPF undertakes to pay interest when due and the liabilities at maturity
and, subject to certain exceptions, not to create encumbrances on the assets of Repsol YPF in relation to these issues or to future issues of debt securities. Bond issues representing
€1,230 million of the total of €6,030 million at December 31, 2003 of marketable securities issued by Repsol International Finance, B.V.,
guaranteed by Repsol YPF, contain clauses whereby Repsol YPF undertakes, subject to certain exceptions, not to create liens or security interests on certain assets of Repsol YPF in relation to any
indebtedness.

In
the event of a default under any series of our bonds, the trustee, at his sole discretion or at the request of the holders of at least one-fifth or one quarter of the
bonds, depending upon the series, can declare the bonds of that series immediately due and payable.

With
respect of bond issues totaling €515 million at December 31, 2003, YPF has agreed to clauses including, among others, to pay all amounts due at
maturity and, subject to certain exceptions, not to establish liens or charges on its assets. In the event of a default, the trustee or the holders of at least 25% of the total principal of the
outstanding debentures may declare due and immediately payable the principal and accrued interest on all the debentures.

Almost
all of our total outstanding debt is subject to cross-default provisions. These provisions may be triggered if an event of default occurs with respect to indebtedness equal to or
exceeding $20 million or 0.25% of Repsol YPF's shareholders' equity. YPF's debt contains similar cross-default provisions with respect to the payment of principal of or interest on indebtedness
equal to or exceeding $20 million.

As
a result of these cross-default provisions, a default on the part of Repsol YPF, YPF or any subsidiary covered by such provisions could result in a substantial portion of our debt
being declared in default or accelerated. Neither Repsol YPF's debt nor any of its subsidiaries' debt is in default.



In
2001, Repsol YPF's long-term debt rating was downgraded to "BBB" by Standard & Poor's, "Baa2" by Moody's and "BBB" by Fitch. During 2002, Repsol YPF's
short-term debt rating was downgraded by Fitch to "F3". On June 3, 2003, Standard & Poor's raised Repsol YPF's short-term debt rating from "A3" to "A2" and
revised Repsol YPF's outlook from "negative" to "stable". Fitch changed its rating outlook for Repsol YPF's to "stable" from "negative" on April 24, 2003 and raised Repsol YPF's
long-term debt rating from "BBB" to "BBB+" on November 26, 2003. Moody's outlook for Repsol YPF's debt rating was revised from "negative" to "stable" on October 20, 2003. On
June 26,

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2003,
Fitch raised Repsol YPF?s short-term debt rating to "F2". On January 19, 2004, Standard & Poor's raised Repsol YPF's long-term debt rating to
"BBB+" from "BBB", affirmed its "A2" short-term debt rating and maintained its "stable" outlook for us. On June 25, 2004, Moody's outlook for Repsol YPF's debt was raised from
"stable" to "positive". A security rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time by the assigning rating organization.

We
do not have any ratings downgrade triggers that would accelerate the maturity dates of our debt or trigger any other contractual obligation on our part. However, a downgrade in our
credit rating could have a material adverse effect on the cost of renewing existing, or obtaining access to new, credit facilities in the future. Should this occur, we would seek alternative sources
of funding, including issuing preference shares, issuing bonds under our existing Euro Medium Term Notes Program or otherwise, and issuing programs of pagarés(short-term indebtedness similar to
commercial paper) in the Spanish domestic market. In the past, our main sources
of liquidity have been our cash flows from operations, bank financing, issuance of commercial paper, debt securities and preferred shares, and the proceeds from our divestment plan. As of
December 31, 2003, total available liquidity is approximately €9,026 million, consisting of approximately €3,250 million available in unused credit
lines, of which €2,404 million will expire by the end of 2004 and €846 million will expire thereafter, €4,533 million in cash and
liquid investments and €1,243 million in other financial investments. As of June 28, 2004, 54% of Repsol YPF's credit lines matured after December 31, 2004.

Any
future downgrades will not preclude us from using any of our existing credit lines.



As
of December 31, 2003, companies of the Repsol YPF group had provided the following guarantees to companies that Repsol YPF does not consolidate under the global integration
method or the proportional integration method:



As of December 31, 2003, companies in the Repsol YPF Group had provided the following guarantees:



As of December 31, 2003, companies in the Repsol YPF Group had requested guarantees amounting to €1,063 million from certain finance
entities. They consist mainly of guarantees of compliance with terms and conditions of tenders awarded, guarantees requested by various court and

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administrative
bodies in relation to litigation in progress and claims on which decisions had not yet been handed down, and the trading activities of companies in the Repsol YPF Group.

The
directors of Repsol YPF, S.A. do not expect significant losses to arise from these commitments, in addition to those already recorded.



Capital
investments in 2003 totaled €3,861 million. A strong growth in generated cash flow allowed Repsol YPF to finance these investments as well as the dividend
payments. The table
below sets forth Repsol YPF's capital expenditures and investments by activity for each of the years ended 2003, 2002 and 2001.

|                    |                            | 2003                      |       | 2002  |    | 2001 |      
|------------------- | -------------------------- | ------------------------- | ----- | ----- | -- | ---- | -----
|
|Capital investments |                            |                           |       |       |    |      |      
|                    | Exploration and Production |                           | 2,168 |       | 57 |      | 1,081
|                    | Refining and Marketing     |                           | 663   |       | 17 |      | 584  
|                    | Chemicals                  |                           | 81    |       | 2  |      | 89   
|                    | Gas and Electricity        |                           | 511   |       | 13 |      | 694  
|                    | Corporate and other        |                           | 414   |       | 11 |      | 225  
|                    |                            |                           |       |       |    |      |      
|                    |                            | Total                     |       | 3,837 |    | 100  | %    
|                    |                            |                           |       |       |    |      |      
|                    |                            | Multi-annual expenditures |       | 24    |    |      |      
|                    |                            |                           |       |       |    |      |      
|                    |                            | Total capital investments |       | 3,861 |    |      |      
|                    |                            |                           |       |       |    |      |      



Exploration and Production investments in 2003 were €2,168 million, a 100.6% increase from investments in 2002. The increase in investment
mainly reflects the acquisition of additional interests in Trinidad and Tobago (20% of BPRY) and Venezuela (25% of Quiamare La Ceiba). Other investments have been mainly concentrated on exploration
and development drilling and secondary recovery projects (Argentina, Trinidad and Tobago and Bolivia) as well as facilities and oil pipelines (the Heavy-Oil Pipeline or OCP in Ecuador).

Development
investments represented 39% of the total Exploration and Production investments made in 2003, allocated to Argentina (64%), Trinidad and Tobago (13%), Bolivia (7%), Ecuador
(5%), Libya (3%), Venezuela (3%) and other countries (5%). Development investments are those investments designed to bring discovered reserves into production, as well as necessary facilities for the
treatment and withdrawal of production; therefore, these investments generally fall into the category of Exploration and Production investments except for investments relating to the exploration or
acquisition of reserves. In general, drilling of wells, construction of facilities and transport systems (oleoducts/gas ducts), engineering, repairs of wells and other investments relating to the
development of oil and gas fields.

Exploration
and Production investments in 2002 were €1,081 million, a 44.6% decrease from investments in 2001. These investments relate mainly to development
perforation activities, secondary recovery projects (Argentina, Libya and Bolivia), construction of plants for the processing and treatment of gas (El Portón plant in Argentina) and new
gas pipelines (Transierra in Bolivia) and oil pipelines (OCP in Ecuador).

Development
investments represented 85.7% of the total Exploration and Production investments made in 2002, allocated to Argentina (61%), Bolivia (14%), Trinidad and Tobago (6%),
Venezuela (6%), Brazil (4%), Ecuador (3%), Libya (1%) and other countries (5%).

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Refining and Marketing investments in 2003 were €663 million, a 13.5% increase compared to 2002. The main investments in 2003 were used to
develop large refining projects, such as the mild hydrocracking unit in Puertollano, an FCC feed pretreatment unit in La Coruña, the new visbreaking and vacuum units in La Pampilla and
the Refap upgrading project (including new resid FCC, coker and hydrotreatment units). In Marketing, investments were principally made to improve the quality of the service station network, strengthen
commercial ties with the service stations and increase the number of service stations directly operated by Repsol YPF.

Refining
and Marketing investments in 2002 were €584 million, a 33.4% decrease compared to 2001, mainly due to a more conservative investment policy, especially in
Latin America.

Marketing
investments in 2002 were assigned for the most part to strengthen the commercial linkage with service stations owned by third parties, acquire new service stations, remodel
existing ones and to undertake environmental protection and remediation measures.



Chemicals investments in 2003 were €81 million, a 9.0% decrease compared to 2002. This amount was used to improve operating efficiencies in
existing units by improving levels of raw material and energy consumption.

Chemicals
investments in 2002 were €89 million, a 59.0% decrease compared to 2001. The main investment project was to expand the Tarragona cracker. Lower
investments in 2002 reflected the completion of the Profertil and Tarragona projects and a conservative investment policy.



Gas and Electricity investments in 2003 were €511 million, representing a 26.4% reduction in investment compared to 2002. The reduction in
investments is mainly due to the change in the consolidation method for Gas Natural and Enagas, which was partially offset by the acquisition of shares of Gas Natural.



Repsol YPF made corporate and other investments of €414 million in 2003, of which €200 million corresponded to the
estimated value of the irrevocable purchase right held by Repsol YPF, S.A. in respect of Tecnicontrol y Gestión Integral, S.L. regarding a property purchased by Tecnicontrol y
Gestión Integral, S.L. for Real Madrid Club de Fútbol, located on Paseo de la Castellana in Madrid.

Repsol
YPF made corporate and other investments of €225 million in 2002, of which €85.3 million corresponded to investments in its
Móstoles technology center.



Multi-annual investments in 2003 amounted to €24 million and reflect mainly various investments that were individually immaterial.
Multi-annual investments in 2002 reached €80 million and reflect mainly €23 million relating to payments due to Gas Natural in 2005, 2006 and 2007 as
consideration for preferential supply rights in Latin America (see Note 8 to the Consolidated Financial Statements). Multi-annual investments in 2001 reached
€360 million and reflect for the most part expenses related to the issuing of preferred shares and bonds effected during 2001.

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Repsol YPF has projected investments for the period 2004-2007 of approximately €15,169 million, broken down by business
segments as follows:

2004-2007(millions of euros)Future Capital ExpendituresExploration and Production

8,547Refining and Marketing

3,969Chemicals

948Gas and Electricity

1,181Corporate assets and other

52415,169


Exploration and Production.The investments in Exploration and Production mainly reflect the development of new reserves in
Latin America and North Africa, particularly in Argentina, Venezuela, Bolivia, Trinidad and Tobago and Libya. This category also includes investments in exploration activities, mainly in Trinidad and
Tobago, Libya, Argentina, the Gulf of Mexico, Bolivia, Venezuela, Cuba and West Africa. Finally, this category includes investments in the development of LNG projects, among which are a regasification
plant in the United States, train 4 of the Atlantic LNG and a liquefaction plant in Latin America.

Refining and Marketing.The most important projected investments in Repsol YPF's Refining business will be used to improve
the efficiency, safety and conversion capacity of its refineries, and to adapt them to the new European Union fuel specifications to be implemented in 2005 - 2009.
As part of Repsol YPF's program to adapt its Spanish refineries to such European Union specifications, Repsol YPF plans to use part of its projected capital expenditures in refining activities to
complete, among other projects, a mild hydrocracking unit in Puertollano, an FCC feed pretreatment unit in La Coruña, an isomerization plant in Tarragona and to increase the
hydrotreament capacity in Bilbao.

The
most important projected investments in Repsol YPF's Marketing business will be used to continue the investment policy followed in 2003, including developing Repsol YPF's network of
service stations, reinforcing the commercial link with the network in Argentina, expanding networks in Brazil, Chile, Peru and Ecuador, and increasing the number of stations directly managed by Repsol
YPF in Spain.

Chemicals.Projected investments for Chemicals seek to grow Repsol YPF's core chemicals activities, such as basic
petrochemicals, polyolefins, propylene oxide and derivatives, and rubbers, in our main strategic markets: Iberian Peninsula, Mediterranean area, Latin America and the rest of Europe. Repsol YPF
expects to attain this growth through capacity additions and new plants, as well as through improving existing plants' efficiency.

Gas and Electricity.The most important investments in this category are dedicated to the development in Spain of
infrastructure for the distribution of natural gas as well as the integration of the gas-electricity channels that include electricity generation plants.

In
Latin America, the projected investments are dedicated to the commercial expansion of the natural gas markets and to electricity generation projects utilizing Repsol YPF's own natural
gas reserves.

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The total amount of proceeds from significant divestitures undertaken by Repsol YPF is presented in the following table:

2003

2002

2001(millions of euros)DivestituresFixed assets

119

77

650Financial assets

110

2,783

540Other assets

26

16

47Total divestitures(1)

255

2,876

1,237


---

The
principal divestiture in 2003 corresponded to the sale of 6.78% of CLH (€71 million). The main divestitures of financial assets in 2002 included the sale of
23% of Gas Natural for €2,008 million, 29.7% of CLH for €368 million, and the sales by Gas Natural of 59.1% of Enagas and 13% of Gas Natural
México, representing revenues for Repsol YPF of approximately €220 million and €159 million, respectively.

During
2002, divestitures included the sale of assets in Indonesia for €671 million, the proceeds of which were not included in the table above as they were
recorded as short-term financial investments as of December 31, 2001.

During
2001, divestitures of fixed assets included the sale of assets in Egypt for €432.3 million. Divestitures of financial assets included the sale of
Electricidad Argentina, S.A. (EASA) for €218.6 million, Oleoducto Trasandino Chile, S.A. for €37.6 million, Oleoducto Trasandino Argentina, S.A. for
€33.1 million, Inversora Distribución de Entre Ríos, S.A. for €23.4 million, Bitech, S.A. for
€12.8 million and CLH's participation in Petronor for €52.5 million. Additionally, Repsol YPF divested long-term financial instruments in the
amount of €38.6 million.

These
transactions were part of Repsol YPF's financial flexibilization plans which have been undertaken since the acquisition of YPF.



Management of Repsol YPF understands that investment in technology is key to maintaining and improving its competitiveness in the markets in which it operates.
Repsol YPF increases its capacity for innovation to keep pace with its business growth, by optimizing and improving the quality and
environmental impact of current processes and products, staying alert to the introduction of technologies that can change the competitive landscape, and dedicating resources to proprietary technology
that can provide medium- and long-term advantages.

To
meet these objectives, Repsol YPF has a specific Technology Unit with operating centers located in Móstoles (Madrid) with a staff of 350, and in La Plata (Argentina),
with a staff of 70, and it maintains a policy of cooperation within its technological environment in order to obtain results in the most cost- and time-efficient manner
possible.

Additionally,
there are different units with a small contingent of technological resources which report to the business units and thereby support their day-to-day
activities, as well as provide technical assistance to clients. In 2003 these efforts totaled €134 million compared to €131 million in 2002.

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In November 2002 Repsol YPF inaugurated its new Technology Center, which is one of the leading technology complexes in the energy and petrochemical sectors
internationally, which reflects Repsol YPF's commitment to technology.

The
new technology complex, located in Móstoles (Madrid), includes all of Repsol YPF's facilities dedicated to R+D+I (research, development, innovation) and technical
assistance, which previously had been dispersed throughout Spain. It shares its campus with theInstituto Superior de la Energía("Graduate School of Energy Studies"), also sponsored by Repsol YPF, which is the first postgraduate training center in the country in the energy sector. During the current school term, the center has
more than 100 students in its Master's degree program, half of whom are from Latin American countries, plus several hundred other students enrolled in shorter-term courses. Repsol YPF has
invested approximately €200 million in the complex.



In
Exploration and Production, projects are principally oriented toward increasing knowledge on oil and gas reserve evaluation systems, final field recovery (including new unconventional
technologies), and the reduction of operating costs.

There
is sustained growth in environmental activities, focused both on minimizing the environmental impact of operations, and on the proactive evaluation of new technologies related to
climate change mitigation; in this latter field, Repsol YPF joined an international organization comprising several energy sector companies.



The
analysis of technologies available to establish the most efficient operating design for compliance with the European Directive on fuel specifications is important; the investments
necessary to launch such products on the market, prior to the regulatory date, are currently underway.

Pursuant
to its downstream strategy, Repsol YPF has made differentiated products available to the market, such as high-quality gas-oils and gasoline, plant-based
biofuels and high-technology gasoline and lubricants for World Championship motorcycles

Repsol
YPF participates in the CUTE project, which is evaluating the use of hydrogen in urban bus fleets equipped with a new generation of fuel cells. The demonstration service station
inaugurated in April 2003 is the first one in Europe with natural gas reformate.

In
its commitment to the environment, Repsol YPF has developed and validated the use in different applications of waxes and paraffins that can be obtained from urban plastic residues or
agricultural film waste or a process of obtaining a biodegradable lubricant.

In
Petrochemicals, the development of proprietary technology over the last decade has allowed access to markets reserved for just a few companies throughout the world. The processes for
the production of propylene oxide and hydrogenated rubber, as well as agricultural plastics technologies, are noteworthy. Research continues today to improve these processes and products, and also on
new catalysts for obtaining higher value-added polyolefin specialties; the large-scale viability of an industrial plant for applying one of these catalysts to films has been demonstrated.

It
is important to stress the proprietary technology propylene/styrene oxide industrial plant recently put into service. This industrial complex has operated continuously and has been
optimized above its design capacity, and there are plans for increasing its capacity by incorporating new proprietary development improvements.

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In
Gas and LPG, the continued improvement of the butane and propane distribution networks and packaging facilities is worth noting, as well as the task of certifying the safety of
consumption devices and the search for new applications for these fuels. An entirely new system is under development to detect and locate leaks in underground pipes, as well as new applications for
agricultural operations to make them more environmentally-friendly.

Recently
developed logistical optimization systems are being disseminated in all geographic and business locations, beyond the initial plans (discrete networks).



In February 2003, the Spanish government appointed Repsol YPF, which, prior to such appointment had no connection with either the vessel or its cargo
described below, to design a project to solve the problems originated by the sinking of the Prestige oil tanker in waters off Spain's north-western coast at almost 4,000 meters water depth. Repsol YPF
has formed a working team composed of more than 40 experts, supported by all the technology units of Repsol YPF and its Móstoles technology center. In addition, Repsol YPF set up a
Technical Committee to evaluate such project with different companies with experience in deep waters such as BP, Eni, Petrobras, Statoil and TotalFinaElf. This Committee has announced a series of
recommendations and put forward an action plan, with a timetable and an estimated budget for the operations that would take place during the summer of 2003. On April 24, 2003, the Ministry of
Science and Technology, the Sociedad de Salvamento y Seguridad Marítima and Repsol YPF entered into a cooperation agreement to address the project.

Since
the end of June 2003, Repsol YPF initiated the acceptance tests on the upgraded ROVs, all the leaks were sealed, and the geotechnical analyses of the soil upon which the
wreck was situated and in the surrounding area and the measurement of the oil level within each tank to verify the residual amount was completed All of these operations, which were completed in the
second half of August 2003, were novel and proved successful, setting a new benchmark for intervention operations on deep water wrecks. The testing of the extraction equipment was carried out
in several phases and in October 2003, the first 125 tonnes of oil were successfully recovered. Following the conclusion of the
test phase, Sonsub has been awarded the contract for the full recovery of the fuel in the summer of 2004.



On March 25, 2004, Repsol YPF notified the CNMV that it had increased its interest in Gas Natural to 30.8% following the purchase from Bilbao Bizkaia Kutxa
of 1.5% of its interest Gas Natural for €138 million.



In April 2004, Repsol YPF and the state-owned Suriname company, Staatsolie, signed a co-production contract for the exploration and production
of oil in Block 30, located 100 km from the Surinamese coast. The contract expires in 30 years, and includes a six-year period for exploration activities. Repsol YPF expects to
acquire 1,800 km of Seismic 2D in the third quarter of 2004.

Block
30 has a surface area of approximately 18,600 km2 and is found in the valley of Guyana-Suriname, producer of oil in the fields of Tambaredjo and Calcutta in the
suburbs of Paramaribo.

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On June 24, 2004, Repsol YPF agreed to purchase, subject to customary closing conditions including regulatory clearance, the marketing and logistics assets
(excluding the LPG and lubricants business) of the Royal Dutch/Shell group of companies in Portugal. Pursuant to this agreement, Repsol YPF would acquire 303 service stations and would increase annual
petroleum product sales by 1.85 million cubic meters.



On June 29, 2004, the Venezuelan government authorized an increase in current net gas production at the Quiriquire block of 3.4 million cubic meters
per day (22,500 barrels of oil equivalent per day including associated liquids).

In
addition, Repsol YPF announced the start up of its first exploratory well, Sipororo 2X , at the Barrancas block (100% Repsol YPF) and the retrieval of the well, drilled in the
past decade by PDVSA, Sipororo 1X. At a second stage the Guaramacal exploratory well will be drilled. If successful, gas production in the Barrancas block is expected to start by the first half
of 2005. The gas produced will be piped to a nearby 450-megawatt power plant. The Barrancas block is located in the southwestern Venezuelan states of Barinas, Trujillo and Portuguesa.

4. Directors, Senior Management and Employees



As
of June 28, 2004, the members of the Board of Directors of Repsol YPF were as follows:

|                                               |  | Position                       |  | Year Appointed |  | Current Term
Expires
|---------------------------------------------- |  | ------------------------------ |  | -------------- |  | --------------------
|Alfonso Cortina de Alcocer(1)                  |  | Chairman and Director          |  | 1996           |  | 2008                
|Ricardo Fornesa Ribó(1)(5)                     |  | Vice-Chairman and Director     |  | 2003           |  | 2005                
|Manuel González Cid(1)(2)                      |  | Vice-Chairman and Director     |  | 2003           |  | 2008                
|Antonio Hernández-Gil Álvarez-Cienfuegos(1)(3) |  | Vice-Chairman and Director     |  | 1997           |  | 2005                
|Ramón Blanco Balín(1)                          |  | Director andConsejero Delegado |  | 2003           |  | 2007                
|Gonzalo Anes Álvarez Castrillón(3)             |  | Director                       |  | 1997           |  | 2008                
|PEMEX Internacional España, S.A.(1)(4)         |  | Director                       |  | 2004           |  | 2006                
|Juan Molins Amat(1)(3)                         |  | Director                       |  | 1994           |  | 2006                
|Antonio Brufau Niubó(5)                        |  | Director                       |  | 1996           |  | 2007                
|Ignacio Bayón Mariné(3)                        |  | Director                       |  | 1997           |  | 2007                
|Marcelino Oreja Aguirre(3)                     |  | Director                       |  | 2000           |  | 2006                
|Enrique de Aldama y Miñón(1)(3)                |  | Director                       |  | 1996           |  | 2006                
|Gregorio Villalabeitia Galarraga(2)            |  | Director                       |  | 2002           |  | 2007                
|Carmelo de las Morenas López(6)                |  | Director                       |  | 2003           |  | 2007                
|Francisco Carballo Cotanda                     |  | Non-Director Secretary         |  | 1987           |  | n/a                 

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The
principal business activities of the Directors of Repsol YPF performed outside Repsol YPF are:

Alfonso Cortina de Alcocer:President of the Spanish Energy Club, member of the Executive Committee of the Foundation for
Technological Innovation (COTEC); member of the Board of Directors of Mutua Madrileña Automovilista; member of the Board of Directors of Institut Français du
Pètrole (IFP); member of the European Round Table of Industrialists (ERT); member of the International Advisory Board of Allianz AG; and member of the Trilateral Commission.

Ricardo Fornesa Ribó:President of Caja de Ahorros y Pensiones de Barcelona, Member of Foundation "la Caixa",
President of Caixa Holdings, S.A., President of Federación Catalana de Cajas de Ahorro, President of Caifor, S.A., President of Inmobiliaria Colonial, First Vicepresident of Caixabank,
France, First Vicepresident of Confederación Española de Cajas de Ahorro (CECA), Executive President of Sociedad de Aguas de Barcelona, S.A. (AGBAR), President of
Fundación AGBAR, President of the Universidad Ramón Llull Foundation, Board Member of Asociación Empresarial de la CEOE, Member of Consell Asesor per al
Desenvolupament Sostenible, Member of L'Alt Patronat de L'Institut Europeu de la Mediterrania, Member of the Board of Directors of Asamblea General del Capitulo
Español del Club de Roma, Member of the Royal Academy of Economic and Finance Sciences and member of Foundation Castellet del Foie and Foundation Carolina.

Manuel González Cid:Chief Financial Officer of BBVA and Director of Banca Nazionale del Lavoro.

Antonio Hernández-Gil Álvarez-Cienfuegos:Professor of Civil Law, Attorney at Law,
Director and Secretary of Banco Zaragozano and Secretary of the Governing Board of the Bar Association of Madrid.

Ramón Blanco Balín:Director of Gas Natural, Director of Enagas, Director of NH Hoteles and
Director of ERCROS.

Gonzalo Anes Álvarez-Castrillón:Director of Cementos Pórtland; Vice President
of the Fundación Duques de Soria.

Raúl Muñoz Leos:General Director of Petróleos Mexicanos.

Juan Molins Amat:General Director and Vice President of Cementos Molins S.A., President of Cementos Avellaneda S.A.,
President of Corporación Moctezuma, President of Privat Bank, Member of the Board of Directors of the Círculo de Economía, President of Fira 2000,
SponsorDirector of the Fundació Bosch i Gimpera and member of the Parc Científic de Barcelona.

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Antonio Brufau Niubó:General Director of La Caixa Group, President of Gas Natural SDG S.A., Director of
Acesa, Director of Caixa Holding, Director of Inmobiliaria Colonial, Director of Aguas de Barcelona and Director of Enagas.

Ignacio Bayón Mariné:President of Citroën Hispania S.A., President and Director
of Planigesa, S.A. and President of Realia Business, S.A.

Marcelino Oreja Aguirre:President of the FCC Group, Director of Acerinox S.A., President of the Instituto de Estudios
Europeos de la Universidad San Pablo C.E.U.

Enrique de Aldama y Miñón:Vice President of CEOE, Director of Corporación
TECNOCOM and President of Build2edifica, S.A.

Gregorio Villalabeitia Galarraga:General Director of BBVA, Director of Telefónica, S.A. and Director of Gas
Natural, S.D.G., S.A.

Carmelo de las Morenas López:Member of the Board of the Britannia Steam Ship Insurance Association Limited,
Member of the Standards Advisory Council of the International Accounting Standards Board and Director of Orobaena.



The
Delegate Committee has been permanently delegated all the powers of the Board of Directors, except those which cannot by law be delegated. The Delegate Committee is responsible for
reviewing important corporate and business issues. The Delegate Committee meets on a monthly basis and its minutes are presented to the Board of Directors.

The
Delegate Committee is comprised of the Chairman and a maximum of seven of the directors, consisting of executive directors, institutional outside directors and independent outside
directors reflecting the relative weight of each type of director in the composition of the Board of Directors. The appointment of its members requires the vote of two-thirds of the
members of the Board of Directors.

Alfonso
Cortina de Alcocer is the president of the Delegate Committee, and its other members are Manuel González Cid, Ricardo Fornesa Ribó, Antonio
Hernández-Gil Álvarez-Cienfuegos, Ramón Blanco Balín, Raúl Muñoz Leos, as representative of PEMEX
Internacional España, S.A., Juan Molins Amat and Enrique de Aldama y Miñón.

The
Regulations that govern the Delegate Committee are set out in Repsol YPF's by-laws and the Regulations of the Board of Directors.



Law
44/2002, of November 22, on the Measures for the Reform of the Financial System, established the obligation on the part of all companies whose shares or other securities
traded on the secondary markets to maintain an audit committee, the majority of which must be composed of non-executive directors. This law also requires that the by-laws set
forth the composition, powers and regulations on the functioning of the audit committee.

The
Audit and Control Committee of the Board of Directors or Repsol YPF was established on February 27, 1995. The annual general shareholders' meeting held on April 4, 2003
approved the amendment of the by-laws of the Company to include a new article, 36 Bis, relating to this Committee, bringing the Audit and Control Committee into compliance with Law
44/2002.

The
Audit and Control Committee performs the following functions:



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The
Audit and Control Committee's activities extend to Repsol YPF, all majority-owned subsidiaries of Repsol YPF and all other companies that are members of the Repsol YPF Group.

The
Audit and Control Committee is comprised of a minimum of three directors appointed for a four-year term. As of June 28, 2004, the members of the Audit and Control
Committee
were Ignacio Bayón Mariné, Antonio Brufau Niubó, Marcelino Oreja Aguirre and Carmelo de las Morenas López. The Board of Directors of Repsol
YPF, in its April 28, 2004 meeting, announced that D. Carmelo de las Morenas López met the conditions to be considered an "Audit Committee Financial Expert" according to SEC
rules and regulations. Executive directors may not sit on the Audit and Control Committee.

On
March 26, 2003, the Board of Directors approved the Regulations that govern the Audit and Control Committee.

See
"Item 13A. Audit Committee Financial Expert" for certain additional information regarding the Audit and Control Committee.



Main activities during 2003.The main activities of the Audit and Control Committee of the Board in 2003 related to
monitoring of the new legislation published in 2002 and 2003 primarily relating to the governance of listed companies.

In
this connection, the main developments were:



In
addition, the Committee has also performed its function of reviewing Repsol YPF's economic and financial information as well as its internal controls, supervising Repsol YPF's
external auditor and approving the work to be done by Repsol YPF's external auditor and its affiliates in compliance with the pre-approval policies required by the Sarbanes Oxley Act.



Before submitting it to the Board, the Committee reviews the consolidated financial statements included in the annual and quarterly reports, with the support of
the Chief Financial Officer and the external auditor.

119

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In addition, the Committee has received timely information both from the Corporate Audit Department and from the external auditor on issues relating to the financial statements of Repsol
YPF and its subsidiaries arising out of their work.

Finally,
the Committee has received information regarding the effect of the application of the new International Accounting Standards on the financial statements of the Group in
connection with its review of as changes in the accounting principles used and the presentation of the financial statements.



The Committee has monitored the development of the annual corporate audit plan approved at the meeting held on January 29, 2003 as part of its oversight of
the internal control system. The projects carried out by the Corporate Audit department are designed to address the most significant risks to the Group, as well as responding to specific requests from
Senior Management during the year to review certain issues that are considered risks in the course of the Repsol YPF's activities. At each of its meetings, the Committee is advised of the most
important issues arising out of completed projects.

In
addition, during 2003 and in light of the Sarbanes Oxley Act and related regulatory developments, the Repsol YPF Group has undertaken a review of its internal control systems relating
to the preparation of for the economic and financial information in order to determine their efficiency and scope. Several departments of the organization have collaborated in this project, including
the Corporate Audit Department.



As part of its assigned functions, the Committee approved the fees of the external auditor for 2002 at the meeting held on December 3, 2002 and for 2003 at
the meeting held on December 17, 2003.

In
2003, the Committee was timely informed by the external auditor of all significant issues arising out of its audit of the consolidated financial statements of the Repsol YPF Group.
The external auditor attended Committee meetings and reported to its Chairman whenever it deemed such report necessary.

Finally,
in light of the requirements set forth in applicable SEC rules and regulations and the recommendations contained in the Code of Good Corporate Governance in Spain, the Committee
has established a pre-approval policy for services to be rendered by the external auditor and its affiliates to Repsol YPF and its subsidiaries. See "Item 13C. Principal Accountant Fees
and Services".

4.1.4    Nomination
and Compensation Committee ("Comisión de Nombramientos y Retribuciones")

The
Nomination and Compensation Committee of the Board of Directors, composed of three directors appointed for a four-year term, is responsible for the nomination of
directors, director compensation policy and reporting on director compensation to the Board of Directors. Executive directors may not sit on the Nomination and Compensation Committee.

The
members of the Nomination and Compensation Committee are Gonzalo Anes Álvarez-Castrillón, Antonio Hernández-Gil
Álvarez-Cienfuegos and Gregorio Villalabeitia Galarraga.

On
March 26, 2003, the Board of Directors approved the Regulations that govern the Nomination and Compensation Committee.

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4.1.5    Strategy,
Investment and Competition Committee ("Comisión de Estrategia, Inversiones y Competencia")

The
Strategy, Investment and Competition Committee was created on September 25, 2002 to inform and make proposals to the Board of Directors regarding relevant strategic decisions
and investments in and divestments of assets of such value that require action by the Board of Directors. This Committee also oversees and guarantees compliance with antitrust rules and principles and
informs the Board of Directors of such rules and principles. The Strategy, Investment and Competition Committee is comprised of a minimum of three directors appointed for a four-year term.
The members of the Strategy, Investment and Competition Committee are Enrique de Aldama y Miñón, Juan Molins Amat and Raúl Muñoz Leos on
behalf of PEMEX Internacional España, S.A.

On
March 26, 2003, the Board of Directors approved the Regulations that govern the Strategy, Investment and Competition Committee.

4.1.6    Officers
of Repsol YPF

The
Chairman of Repsol YPF, in conjunction with the Executive Committee, manages Repsol YPF, aided by the Management Committee. The Executive Committee was created in 1990 as the main
executive body for the day-to-day business of Repsol YPF. It meets every two weeks. As of June 28, 2004, the members of the Executive Committee of Repsol YPF and their
respective positions with Repsol YPF were as follows:

|Name                         |  | Position                                           
|---------------------------- |  | ---------------------------------------------------
|Alfonso Cortina de Alcocer   |  | Chairman and Chief Executive Officer               
|Ramón Blanco Balín           |  | Chief Operating Officer andConsejero Delegado      
|Miguel Ángel Remón Gil       |  | Executive Vice President Upstream                  
|Alfonso Ballestero Aguilar   |  | Managing Director, RYTTSA                          
|Luis Mañas Antón             |  | Chief Financial Officer                            
|Jorge Segrelles García       |  | Managing Director, Refining and Marketing in Europe
|José Manuel Revuelta Lapique |  | Director Assistant to the Chairman                 

The
following is a summary of the business experience and areas of expertise of the members of the Executive Committee.

Alfonso Cortina de Alcocer:He has been Chairman and CEO of Repsol YPF S.A. since July 1999 (previously to that he was
Chairman and CEO of Repsol S.A. since June 1996 and Chairman and CEO of YPF S.A. since July 1999). He graduated in Advanced Industrial Engineering and Economics and began his
professional career in 1968 at the Banco de Vizcaya Group. From 1974 he has been Managing Director of Bancaya Inmobiliaria; Managing Director of Hispano Hipotecario, Sociedad de Crédito
Hipotecario, S.A. (Hispano Americano Group); Chairman of Sociedad de Tasación, S.A.; Vice-Chairman and Managing Director and Chairman and Managing Director of Portland
Valderribas, S.A. He has been a member of the Board of Directors of BBVA, Banco Zaragozano, Banco Central, FCC and Ferrovial.

Ramón Blanco Balín:Chief Operating Officer andConsejero
Delegado. Before becoming Chief Operating Officer, he was Repsol YPF's Corporate Vice President and, prior to that, he was a member of Repsol YPF's Board of Directors as well
as President of the Audit Committee. He was coordinator of the Committee for the integration of Repsol YPF and YPF. In 1982, he won by selection process the position of Financial Inspector of the
Government, and later on held different positions in the private sector in the areas of finance and taxes. He is a director of Gas Natural, Enagas, NH Hoteles and ERCROS.

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Miguel Ángel Remón Gil:Executive Vice President of Upstream of Repsol YPF. In 1999, he was
appointed Senior Vice President of Planning, Control and Strategy Development of Repsol YPF. In 1989, he was appointed General Director of Planning and Control at Repsol YPF and since 1997, he has
held the position of Manager of the Latin American area. From 1985 to 1999, he was Director of the Exploration and Production and Gas area of the Instituto Nacional de Hidrocarburos. In addition, he
is a director of Gas Natural. His entire professional career has been spent in the energy sector.

Alfonso Ballestero Aguilar:Managing Director, RYTTSA. In 1999, he was appointed Director General of RYTTSA. He received his
degree in Mining Engineer from the Polytechnic University of Madrid. His career began at Hispanoil in 1968, where he worked as an Exploration Engineer until 1975. From 1975 to 1976, he was Director of
the Petroleum and Petrochemical Sector at the National Institute of Industry (INI). In 1976, he returned to Hispanoil to assume the position of Director General, a position which he held through 1982.
Subsequently, he held several management positions at Astilleros Españoles y Zaonfic, S.A. (Consulting). In July 2003, he was named as a member of Repsol YPF's Executive
Committee.

Luis Mañas Antón:Chief Financial Officer. He graduated in Economics and Law from the
Universidad Autónoma de Madrid. Doctorate (Ph.D.) and received a Masters (M.A.) in Economics from the University of Chicago. He joined Repsol YPF in 1987, and in 1990, was appointed
Director of theChairman's Office. From 1996 to 2000, he served as Deputy Chief Financial Officer. He has taught at the University of Chicago,
Universidad Complutense de Madrid and CEMFI.

Jorge Segrelles García:Managing Director, Refining and Marketing in Europe. A Law Graduate and State
Financial and Tax Inspector with a Master Degree in Law from Harvard University, before joining the oil sector, he held several posts, including Financial Manager at the OECD, and
Vice-Secretary General of Tabacalera, S.A. He joined INH in 1985, and since then, has held several top posts. He is currently the Assistant Vice-President of the Group's
Downstream activities.

José Manuel Revuelta Lapique:Director Assistant to the Chairman. He holds a Doctorate in Economics and
Business from Universidad Autónoma de Madrid (1979); Commercial Technician and Economist of the Spanish government (1981) and Professor of Applied Economy (1984). He was General
Director of Structure at Grupo Prisa (1991) and has been the Director of the Yearbook "El País" since 1994. In 1996, he joined Repsol YPF as Director Assistant to the Chairman and in
1999, was appointed Corporate Director Assistant to the Chairman.

Members
of the Executive Committee of Repsol YPF do not serve for a predetermined term, but instead are employed for a period which is, in principle, indefinite until retirement, death
or voluntary or involuntary termination.

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The
Management Committee provides management of the corporate operations of Repsol YPF. As of June 28, 2004, the members of the Management Committee of Repsol YPF and their
respective positions with Repsol YPF were as follows:

|Name                            |  | Position                                               
|------------------------------- |  | -------------------------------------------------------
|Alfonso Cortina de Alcocer      |  | Chairman and Chief Executive Officer                   
|Ramón Blanco Balín              |  | Chief Operating Officer andConsejero Delegado          
|Miguel Ángel Remón Gil          |  | Executive Vice President Upstream                      
|José Manuel Revuelta Lapique    |  | Director Assistant to the Chairman                     
|Fernando Cid García             |  | Director of Real Estate Activities and General Services
|Jesus Fernández de la Vega Sanz |  | Director of Human Resources                            
|Antonio Gomis Sáez              |  | Director of External Relations                         
|Alfonso Ballestero Aguilar      |  | Managing Director, RYTTSA                              
|Nemesio Fernández-Cuesta        |  | Director of Shared Services                            
|Pedro Fernández Frial           |  | Director of Planning and Control                       
|Manuel Guerrero Pemán           |  | Director of LPG                                        
|Juan Pedro Maza Sabalete        |  | Director of Chemicals                                  
|Luis Mañas Antón                |  | Chief Financial Officer                                
|Pascual Olmos Navarro           |  | Director of Refining and Marketing in Latin America    
|Jorge Segrelles García          |  | Director of Refining and Marketing in Europe           
|Rafael Piqueras Bautista        |  | Director of Legal Affairs                              

The
following is a summary of the business experience and areas of expertise of the members of the Management Committee who are not members of the Executive Committee.

Fernando Cid García:Director of Real Estate Activities and General Services. Industrial Engineer. He joined
Repsol YPF in September of 1999. Before joining Repsol YPF, he held different managerial positions at construction and real estate companies.

Jesús Fernández de la Vega Sanz:Director of Human Resources. He holds graduate degree in Law
from the Complutense University of Madrid, and in Comparative Law from the University of Strasbourg (France). In 1987, he started his career in the human resources area as General Director of Human
Resources of Repsol YPF. He was also General Director of employment for the Ministry of Labor.

Antonio Gomis Sáez:Director of External Relations. Graduated in Chemical Sciences. In 1974, he began his
professional career in the refinery of EMP (today Repsol Petróleo) in Puertollano, Ciudad Real. In 1981, he was appointed Manager of the International Energy Agency (OECD) in Paris. In
1984, he joined the Ministry of Industry and Energy as Adviser to the General Secretary of Energy and Mineral Resources. He rejoined the National Institute of Hydrocarbons in 1986, where he was Area
Director of International and Institutional Relations in Repsol YPF. In 1997, he was appointed General Director of Energy of the Ministry of Industry and Energy where he remained until
May 2000.

Nemesio Fernández-Cuesta.Director of Shared Services. Corporate Director of Shared Services. Licentiate in
Economic and Business Sciences from the Autonomous University of Madrid, he joined the National Hydrocarbons Institute (INH) in 1987 as head of the project to create the Repsol image. In 1989, he was
named Director General of Marketing of Repsol Petróleo. In May 1991, he was charged with merging the sales and marketing departments of Repsol Petróleo, CAMPSA and
Petronor, for which he was named Director General of Sales and Marketing of Repsol, S.A. This merger involved the creation of Repsol Comercial de Productos Petrolíferos, where he was
named Executive Vice President. Between 1996 and 1998, his professional career took him to the Ministry of Industry and Energy; and from 1998 to 2003, he was at Prensa Española, holding
the positions of

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Chairman
of Prensa Española S.A., Vice President of Grupo Correo Prensa Española, and Chairman of ABC, S.L.

Pedro Fernández Frial:Director of Planning and Control. He has held the position of Corporate Director of
Planning and Control since 2003. In 2002, he was named Managing Director of Chemicals; and from 1994 through 2002 he held the position of Director of Planning, Control and Development at Repsol
Química, S.A. His professional career in the Group began in 1980, when he joined Repsol Petróleo, S.A. as a Process Engineer. Subsequently, he held several technical
positions before reaching the position of Head of Process Engineering. In 1992, he joined Repsol, S.A. as Director of Business Planning, with responsibility for business planning in Repsol YPF's gas
businesses. He is an Industrial Engineer and PDD from IESE.

Manuel Guerrero Pemán:Director of LPG. He has been Managing Director of LPG since July 2003. A
Licentiate in Law, Manuel Guerrero Pemán was well-versed in the international hydrocarbons sector prior to 1987, when he assumed the presidency of Repsol
Distribución; he held the position for 5 years, until 1993, when he was named Executive President of Repsol Portugal. In 1998, he returned to Spain, after having been named
Managing Director of Repsol Gas, thereby beginning his career in the LPG area.

Juan Pedro Maza Sabalete:Managing Director of Chemicals. Director General of Chemicals. Industrial Engineer. A large part of
his professional career has been in the Refinery area, holding management positions in four of the five Spanish Refineries. In 1999, he began a new professional phase in Argentina, where he was named
Managing Director of Refining & Marketing Latin America. In 2002, he returned to Spain as Managing Director of R&M Europe, a position held until 2003.

Pascual Olmos Navarro:Managing Director of Refining and Marketing Latin America since July 2002. Licentiate in
Economic and Business Sciences and also an MBA and PADE from IESE. From 1976 through 1993, he held several positions in the Ford Group. In 1994, he joined the Group as Chairman of Repsol
Distribución and Director of the Lubricants Division at Repsol Comercial de Productos Petrolíferos. Here he was named Managing Director of Sales, a position he held until
1999, when he was named Director of Downstream Sales. In August 2000, he was named Assistant Managing Director of the R&M Latin America Division, a position he held until 2002. Since then, he
has held the position of Managing Director of Refining and Marketing in Latin America. He has been a member of the Management Committee of Repsol YPF since July 2003.

Rafael Piqueras Bautista:Corporate Director of Legal Affairs. In 1990, he joined the National Hydrocarbons Institute (INH)
as Legal Director. Four years later, he became Director of the Legal Affairs Department of Repsol, S.A.. At the end of 1999, he was named Director of Legal Affairs for Gas and Electricity,
Institutional and Real Estate Affairs as part of the Corporate Legal Department. He has held his current position since 2000.

4.1.7    Disclosure
Committee ("Comité Interno de Transparencia")

In
November 2002, Repsol YPF created a Disclosure Committee to perform, among other, the following functions:



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The
Disclosure Committee is composed of Luis Mañas Antón, Ramón Blanco Balín, Miguel Angel Remón Gil, Jorge
Segrelles García, Alfonso Ballestero Aguilar, Jesús Fernández de la Vega, Antonio Gomis Sáez, Rafael Piqueras Bautista, Isidoro Mansilla
Barreiro and Ángel Ramos Sánchez.

The
Disclosure Committee is supervised by the Audit and Control Committee, the Chairman of the Board of Directors and the Chief Financial Officer, who sits as President of the Disclosure
Committee.

125

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On November 4, 2003, the SEC approved new rules proposed by the New York Stock Exchange (NYSE) intended to strengthen corporate governance standards for
listed companies. NYSE-listed non-U.S. companies may, in general, follow their home country corporate governance practices in lieu of most of the new NYSE corporate governance
requirements. The NYSE rules, however, require that non-U.S. companies disclose any significant ways in which their corporate governance practices differ from U.S. companies under the NYSE
listing standards. In compliance therewith, the following is a summary of the significant differences between our corporate governance practices and those applicable to U.S. companies under the NYSE
listing standards.



In accordance with the NYSE corporate governance rules, a majority of the Board of Directors must be composed of independent directors, the independence of whom
is determined in accordance with highly detailed rules promulgated by the NYSE. Spanish law does not regulate the types of directors nor, for that matter, the indispensable requirements to determine
their independence. However, the Regulation of the Board of Directors of Repsol YPF, following international market practice and the principles and recommendations of the "Olivencia Report" and the
"Aldama Report", establishes, at least, three classes of directors: executive directors, directors appointed by an individual shareholder
based on the extent of his/her shareholding (dominical directors), and independent directors. The following persons may not be nominated or designated as independent outside Directors:



If
any such prior relationship exists, it may be evaluated and dispensed with by the Board, following examination of the Nomination and Compensation Committee's report; said decision
shall be reflected in the Annual Report.



In accordance with the NYSE corporate governance rules, a majority of the Audit Committee must be composed of independent directors and by July 31, 2005,
all members of the Audit Committee must be independent. Independence is determined in accordance with highly detailed rules promulgated by the NYSE. The Audit and Control Committee of the Board of
Directors of Repsol YPF is composed of two independent directors (so and as they are defined in the Regulation of the Board of Directors), one director appointed by a shareholder and one Consejero
Externo, Mr. Carmelo de la Morenas López, who, because he was Chief Financial Officer of Repsol YPF through July 2003, does not meet the required conditions of the
Regulation of the Board of Directors to be considered an Independent Director. The Spanish norm (Law 44/2002, of 22 of November) establishes that the composition of the Audit and Control Committee
must be a majority of non-executive directors. Nevertheless and, in accordance with the Regulation of the Audit and Control Committee, executive directors, as defined in the Regulation of
the Board of Directors, may not be members of this committee. See 4.1.3 Section

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"Directors,
Senior Management and EmployeesDirectors and Officers of Repsol YPFThe Audit and Committee Control".



In accordance with the NYSE corporate governance rules, all U.S. companies listed on the NYSE must have a compensation committee and a nominations committee and
all members of such committees must be independent in accordance with highly detailed rules promulgated by the NYSE. Under Spanish law, these committees are not required, though there is a
non-binding recommendation for listed companies in Spain to have these committees and for them to be composed of a majority of non-executive directors. Repsol YPF satisfies
this non-binding recommendation, in as much as it has a Nominations and Compensation Committee and, according to the Regulation governing such Committee, is comprised of
non-executive directors. See Section 4.1.4. "Directors, Senior Management and EmployeesDirectors and Officers of Repsol YPFNomination and Compensation
Committee".



In accordance with NYSE corporate governance rules, independent directors must meet periodically outside of the presence of the executive directors. Under Spanish
law, this practice is not contemplated and as such, the independent directors on the Board of Directors of Repsol YPF do not meet outside of the presence of the executive directors or
shareholder-appointed directors.



Compensation of the Board of Directors



Pursuant to Repsol YPF's by-laws, an amount equivalent to 1.5% of Repsol YPF's annual net income may be allocated to compensation of members of the
Board of Directors. This amount may be allocated only after legal reserves, a minimum dividend of 4% and other required amounts have been paid.

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The
amount of compensation accrued in 2003 and 2002 by members of the Board of Directors by reason of their membership thereof amounted to €3.28 million and
€2.70 million, respectively. The following table provides details on accrued compensation in 2003 in euro:

|                                         |  | Compensation for Membership on the Board of Directors
|---------------------------------------- |  | -----------------------------------------------------
|
|
|Alfonso Cortina de Alcocer               |  | 140,272                                              
|Enrique de Aldama y Miñón                |  | 140,272                                              
|Gonzalo Anes Alvarez Castrillón          |  | 140,272                                              
|Ignacio Bayón Mariné                     |  | 140,272                                              
|Antonio Brufau Niubó                     |  | 140,272                                              
|Antonio Hernández-Gil Alvarez-Cienfuegos |  | 140,272                                              
|Juan Molins Amat                         |  | 140,272                                              
|PEMEX Internacional España, S.A.         |  | 140,272                                              
|Marcelino Oreja Aguirre                  |  | 140,272                                              
|Gregorio Villalabeitia Galarraga         |  | 140,272                                              
|Manuel González Cid(1)                   |  | 105,204                                              
|Ramón Blanco Balín(1)                    |  | 105,204                                              
|Carmelo de las Morenas(2)                |  | 58,447                                               
|Ricardo Fornesa(3)                       |  | 23,379                                               
|Jose Vilarasau Salat(4)                  |  | 116,893                                              
|José Ignacio Goirigolzarri Tellaeche(5)  |  | 46,757                                               

---

In
addition:





The amount of wages and salaries, for all items, accruing in fiscal years 2003 and 2002, by those members of the Board of Directors who during those fiscal years
had an employment relationship or had executive responsibilities in the Group, amounted to €4.2 million and €2.27 million, respectively.

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Furthermore,
in 2003, the 2001-2005 and 2002-2006 Incentives, which began in fiscal years 2001 and 2002, respectively, were paid in advance through a
one-time payment unrelated to the stock price of Repsol YPF, S.A. The aggregate amount paid for both plans was €1.2 million for members of the Board of Directors who
are executive officers, an amount which was recorded as "extraordinary expenses" on the profit and loss statement.

Additionally,
members of the Board of Directors who perform executive functions are included in the 2003-2006 Incentive Plan. During fiscal year 2003, no compensation was
paid with respect to this Plan given that this incentive consists of an additional amount of variable compensation to be received in 2007, and whose receipt is related to: (i) remaining a
manager of the Group through that date; and (ii) achievement of a series of objectives connected to those included in the Group's 2003 - 2007 Strategic Plan.



The amount of compensation accrued in fiscal year 2003 and 2002 by members of the Board of Directors of Repsol YPF, S.A., for their membership in the
administrative bodies of other Group, multi-group or affiliated companies, amounted to €1.01 million and €0.50 million respectively.



The members of the Board of Directors are covered by the same civil liability policy that insures all managers and management personnel of the Repsol YPF Group.

Compensation of Management Personnel



Senior Management receives fixed and variable compensation, the latter being calculated as a specific percentage of fixed compensation, a function of the degree
to which certain objectives are met.



There are several loyalty programs aimed at the Group's managers whose purpose is to strengthen managers' ties to the interests of the stockholders and to retain
the most talented managers in an ever more competitive labor environment. See Section 4.4.1 "EmployeesMedium and Long-term Incentives".



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The Group also has a deferred compensation plan for its management personnel whose purpose is to compensate management for remaining in the Repsol YPF Group. For
each employee included in the Plan, the Group provides a specific percentage of their fixed compensation. The premium is paid only if the employee remains a management employee for at least
30 years, retires, is unduly dismissed, or leaves the company at the company's request without cause for dismissal. The amount contributed for this item for senior management during fiscal year
2003 amounted to €0.7 million.



The amount of contributions made by the Group in 2003 with respect to the mixed defined contribution plans adapted to the Pension Plans and Funds Act maintained
in respect of management personnel, together with the amount of premiums paid for life and accident insurance, amounted to €0.4 million.

Senior
management personnel are covered by the same civil liability policy that insures all managers and directors of the Repsol YPF Group.

Remuneration
paid during 2003 and 2002 to the members of the Executive Committee (excluding persons who also sit on the Board of Directors) during such years was the following:

2003(2)

2002(1)(thousands of euro)Salaries

2,439

2,229Allowances(3)

432

657Variable remuneration(4)

3,613

800Remuneration in kind

272

329Total

6,756

4,015


---

At
December 31, 2003, the members of the Executive Committee (including persons who also sit on the Board of Directors) who were granted rights under the 2000 medium and
long-term incentive program (approved by the ordinary general shareholders meeting held on March 28, 2001) held rights over a total of 273,000 "theoretical shares" of Repsol YPF.
See Section 4.4.1 "EmployeesMedium and Long-term Incentives2000 Incentive Plan".

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Remuneration
paid during 2003 and 2002 to the members of the Management Committee during such years (excluding persons who also serve on the Executive Committee and whose compensation is
set forth in the preceding table) was the following:

2003

2002(1)(thousands of euro)Salaries

2,534

2,556Variable remuneration(2)

3,421

700Remuneration in kind

264

225Total

6,219

3,481


---



The total number of shares owned by the members of the Board of Directors as of March 31, 2004 was 513,371, which represents 0.042% of the capital stock of
Repsol YPF.

|                                         |  |         |  |        |  |         |  |        |  |          |  | Number of shares
owned by nominating
shareholder | 
|---------------------------------------- |  | ------- |  | ------ |  | ------- |  | ------ |  | -------- |  | ------------------------------------------------ | 
|
|
|
|Alfonso Cortina de Alcocer               |  | 424,000 |  |       |  | 424,000 |  | 0.0347 |  |         |  |                                                 | 
|Ramón Blanco Balín                       |  | 20,739  |  | 2,116  |  | 22,855  |  | 0.0019 |  |         |  |                                                 | 
|Manuel González Cid                      |  | 10      |  |       |  | 10      |  | 0.0000 |  | BBVA     |  |                                                 | 
|Gregorio Villalabeitia Galarraga         |  | 10      |  |       |  | 10      |  | 0.0000 |  | BBVA     |  | 77,308,682                                       | 
|Gonzalo Anes Alvarez Castrillón          |  | 2,000   |  |       |  | 2,000   |  | 0.0002 |  |         |  |                                                 | 
|PEMEX Internacional España, S.A.(2)      |  | 1       |  |       |  | 1       |  | 0.0000 |  | PEMEX    |  | 58,679,800                                       | 
|Juan Molins Amat                         |  | 8,044   |  |       |  | 8,044   |  | 0.0007 |  |         |  |                                                 | 
|Antonio Brufau Niubó                     |  | 3,950   |  |       |  | 3,950   |  | 0.0003 |  | La Caixa |  |                                                 | 
|Ricardo Fornesa Ribó                     |  | 100     |  |       |  | 100     |  | 0.0000 |  | La Caixa |  | 111,106,507                                      | 
|Ignacio Bayón Mariné                     |  | 7,050   |  |       |  | 7,050   |  | 0.0006 |  |         |  |                                                 | 
|Antonio Hernández-Gil Álvarez-Cienfuegos |  |        |  |       |  |        |  |       |  |         |  |                                                 | 
|Marcelino Oreja Aguirre                  |  | 5,436   |  |       |  | 5,436   |  | 0.0004 |  |         |  |                                                 | 
|Carmelo de las Morenas López             |  | 7,376   |  |       |  | 7,376   |  | 0.0006 |  |         |  |                                                 | 
|Enrique de Aldama y Miñón                |  | 22,431  |  | 10,108 |  | 32,539  |  | 0.0027 |  |         |  |                                                 | 

---

The members of the Management Committee of Repsol YPF together own less than 1% of the outstanding shares of Repsol YPF. As of the latest
practicable date, the total amount of voting securities owned by the directors and officers (including their immediate families) of Repsol YPF as a group was 553,620 ordinary shares, or 0.045% of the
total number of ordinary shares of Repsol YPF issued and outstanding.

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As of December 31, 2003, Repsol YPF had 31,121 employees. The figures in the tables below include the employees of Gas Natural according to the applicable
percentage of consolidation as at December 31 of each year (100% in 2001, 24.0% in 2002 and 27.1% in 2003). The figures for average number of employees in the tables below are consistent with
the consolidation criteria applied, consolidating the percentage participation held by Repsol YPF in each of the months of each of the years.

The
following tables provide a breakdown of Repsol YPF's employees by business segment as well as by geographic area, as of December 31, 2003, 2002 and 2001.

2003

2002

2001Employees by business segmentExploration and Production

2,328

2,160

3,118Refining and Marketing

20,529

20,391

20,838Chemicals

2,541

2,494

2,602Gas and Electricity

3,283

1,508

6,849Other

2,440

3,557

2,045Total

31,121

30,110

35,452


2003

2002

2001Employees by geographic areaSpain

16,197

16,038

18,997Rest of Europe

465

472

423Latin America

14,164

13,350

14,796North Africa and Middle East

142

96

173Far East

12

5

918Rest of the World

141

149

145Total

31,121

30,110

35,452


The
average payroll of Repsol YPF, by professional categories, for the last three years, is as follows:

2003

2002

2001Employees by professional categories(1)Officers

278

317

391Middle Management

1,720

3,071

3,000Technicians

11,087

10,387

12,930Administrators

2,461

2,669

4,478Operations staff

15,098

16,158

16,711Total

30,644

32,602

37,510


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The
following table provides a breakdown of the average permanent and temporary employees of Repsol YPF for the last three years:

2003

2002

2001Permanent and temporary employeesPermanent

26,948

29,933

34,577Temporary

3,696

2,669

2,933Total

30,644

32,602

37,510


On
December 31, 2001, the Second Master Agreement, with the most important unions representing Repsol YPF employees in Spain, expired. On April 11, 2002, negotiations for a
new Master Agreement were suspended until the last quarter of 2002. In September 2002, negotiations were resumed and an agreement was reached to peg salaries to the wholesale price index. In
February 2003, the Third Master Agreement was agreed for a term expiring in December 31, 2005. The Third Master Agreement covers approximately 12,900 employees in Spain.

It
is important to note that the new master agreement does not yet contemplate the existence of labor regulations regarding retirements. Nevertheless, maintaining Repsol YPF's promise of
stable employment, in the process of adapting the workforce, we have introduced a formula for partial retirement to which employees of 60 or more years of age may submit voluntarily. This figure
allows the partial substitution, with young workers, for those who select this plan.

Repsol
YPF negotiates collective labor agreements for each of its operating subsidiaries. Under the Third Master Agreement, and effective for the same time period (throughout 2003) the
collective bargaining agreements for the principal companies within the Repsol YPF Group in Spain were negotiated.

The
principal unions in Spain are U.G.T. (Unión General de Trabajadores) and CC.OO. (Comisiones
Obreras). Other unions with a significant representation in Spain are: C.T.I. (Confederación de Trabajadores
Independientes), T.U. (Trabajadores por la Unidad), ELA-STV (Eusko Langileen
Alkartasuna-Solidaridad de Trabajadores Vascos), SITRE (Sindicato Independiente de Trabajadores de Repsol
Exploración), C.I.G. (Confederación Intersindical Galega) and SIR-YPF
(Sindicato Independiente Repsol YPF).

In
Argentina, YPF has three collective bargaining agreements, signed in October 2001 and July 2003, covering 3,326 employees active in refining, production, service
stations and LPG. With regard to refining, production and service stations, the collective bargaining agreement, which only applies to
YPF, was successfully negotiated and executed in October 2001, with a term expiring on December 31, 2004. The collective bargaining agreement covering LPG employees is binding on the
various LPG companies and is negotiated by a commercial chamber representing all the incumbent companies with the participation of Repsol YPF Gas. The collective bargaining agreement was adopted in
July 2003 with a term expiring on June 2006. Repsol YPF believes that this agreement is characterized by its focus on cost control. With these agreements, Repsol YPF has achieved the
objective of consolidating its labor relations.

YPF
employees are primarily represented by the SUPEH (Federación de Sindicatos Unidos Petroleros e
Hidrocarburíferos). Repsol YPF Gas' employees are primarily represented by the FASP and G.P. (Federación Argentina
Sindical del Petróleo y Gas Privados).

In
2002, the government of Argentina enacted labor regulations pursuant to which employees terminated without cause within the first 180 days of 2002 would be entitled to twice
the indemnification they would normally be entitled to by law. The application of these regulations, which aimed to prevent further increases in unemployment, has been extended indefinitely.

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Repsol
YPF's labor-related costs for the past three years have been as follows:

2003

2002

2001(millions of euro)Labor-related costsSalaries

830

869

1,328Benefits

281

292

404Total

1,111

1,161

1,732Average cost per employee (euro)

36,279

35,584

46,173


Extraordinary
expenses in connection with labor force restructuring were €32 million in 2003, €54 million in 2002 and
€103 million in 2001. For a detailed discussion of Repsol YPF's extraordinary expense related to labor force restructurings, see Section 3.6 "Operating and Financial
Review and ProspectsExtraordinary Income (Loss)Labor force restructuring." Repsol YPF recorded labor force restructuring provisions of €12 million,
€17 million and €65 million and in 2003, 2002 and 2001, respectively.

Repsol
YPF has defined contribution pension plans in place for employees of its principal operating subsidiaries, Repsol Petróleo, S.A., Repsol Comercial de Productos
Petrolíferos, S.A., Repsol Exploración, S.A., Repsol Química, S.A., Repsol Butano, S.A. and Repsol YPF Lubricantes y Especialidades, S.A. Under Spanish
law, participation in the plans is open to all employees and participation is subject to a maximum contribution.

YPF
also has a defined contribution pension plan for employees of its main subsidiaries (YPF, OPESSA, Repsol YPF Gas) under which YPF makes contributions substantially equivalent to
employees' contributions up to a defined limit. Due to the economic impact on pension funds managed by insurance companies, provoked by the economic crisis in Argentina, YPF suspended its
contributions to such companies, although it continued to make retention payments to employees, making opportunistic contributions and depositing funds in accounts held by the Company. YPF has,
following the dismissal of the previous plan administrator, set up a trust for contributions made by the Company and a common investment fund for contributions made by employees. This common
investment fund has been registered with the Argentine national securities commission.

In
2003 and 2002, the total annual cost to Repsol YPF of maintaining these plans were €24 million and €25 million, respectively.

Maxus
Energy Corporation (a YPF subsidiary) has a number of trustee noncontributory pension plans covering substantially all full-time employees. The benefits provided by
these plans are based on the number of years of employment and the compensation earned during those years. This company has other noncontributory pension plans for executive officers, select key
employees and former employees of the Maxus Group. The basis of calculation of the contributions are at a discount rate of 6.25%, weighted rate of a return of assets of 9%, weighted for rate of
increase of
compensations, between 4.5 and 5.5% and the Table of Mortality UP-94. Maxus also grants benefits for health care, life insurance and other social benefits to some of its employees who
retire early. The amounts payable accrue over the employee's years of service. In relation to these programs, in 2003 and 2002, an extraordinary expense of €27 million and
€41 million, respectively, was recorded to cover the shortfall between the existing provision and the guaranteed benefits.



Since
2000, the Recruiting and Compensation Committee of the Board of Directors of Repsol YPF, S.A. has implemented bonding programs initially aimed at senior executives and extendible
to other persons occupying positions of high responsibility in the company. Under these programs, a medium/long-term incentive was included in the compensation system. The aim of these
programs is to

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strengthen
the identification of executives and managers with shareholders' interests while at the same time favoring retention of key personnel in an increasingly competitive labor market
environment.



Qualification for the following incentive payments is tied to the beneficiary remaining at the Group's service on each of the dates on which the rights are
exercisable. The plan beneficiaries are entitled to compensation in cash on the basis of the appreciation of Repsol YPF, S.A. shares in the Spanish stock markets based on specific values and the
number of shares received.

2000 Incentive Plan

The amount to be received by the beneficiaries of this plan is structured in two tranches, as follows:



This
right will be exercisable on the following dates:



The
exercisable rights conferred on the beneficiaries are valued at market price at the end of each year and the resulting value is prorated on a straight-line basis over the
period remaining to the expiration date of the plan. In accordance with this valuation method, the balance of the provision recorded in this connection was reduced by
€1 million as of December 31, 2003.

2002 Incentive Plan

The amount to be received by the beneficiaries of this plan is structured in two tranches, as follows:



This
right will be exercisable on the following dates:

From
March 1, 2004, the beneficiaries are able to exercise 1/3 of their rights for each tranche.

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From March 1, 2005, the beneficiaries will be able to exercise up to 2/3 of their rights for each tranche (including, where appropriate, the rights exercised through that date).

From
March 1, 2006, the beneficiaries will be able to exercise any rights not already exercised. These rights are exercisable through December 2006.

In
order to cater for the possible payments to be made, in 2003, the Company acquired call options on Repsol YPF, S.A. shares which may be settled on the same dates and under the same
conditions as those established in the incentive plan as discussed above.

The
detail of these transactions as of December 31, 2003, is as follows:

Exercise Price

Type of Transactions

No. of Shares

Contract Date

Net Premium(euros)







(Euro)13.00

Call Option

2,679,005

12/18/03

7,474,42418.00

Call Option

2,679,005

12/12/03

1,982,4649,456,888


Repsol
accrues the cost of these options on a straight-line basis from the date on which the incentive was granted to the expiration date. The
€5.3 million paid relating to the cost allocated to future years was recorded under the "Deferred Expenses" caption as of December 31, 2003.

Through
the date of acquisition of these options, the exercisable rights conferred on the beneficiaries were valued at market price and the resulting value was prorated on a
straight-line basis over the period remaining to the expiration date of the plan. A provision of €3.6 million was recorded in this connection as of
December 31, 2002.

The
2003 expense recorded in connection with this incentive amounted to €0.5 million and is included under the "Wages, Salaries, etc." caption in the statement of
income.

The
fair value of these transactions was €11,117,871 at December 31, 2003.

As
of December 31, 2003, the Company had arranged transactions tied to the market price of Repsol YPF shares, settlable exclusively on a cash basis, for a total of 5,983,293
shares, with a benchmark price of €14.97 and expiring on January 30, 2004. No effect was recorded in the 2003 statement of income as a result of the valuation of these
transactions at market price as of December 31, 2003. The fair value of these transactions was €2,918,650 at December 31, 2003.



2003 Incentive Plan

Qualification for this incentive payment is tied to the beneficiary remaining at the Group's service through December 31, 2006. This is a specific
multi-year compensation plan for 2003 to 2006 entitling its beneficiaries to receive an additional variable compensation amount in 2007, provided that the set objectives are met. The
objectives are based on the Company's 2003-2007 Strategic Plan. This multi-year incentive payment, if received, will consist of an amount tied to the fixed compensation for
2003, to which a variable coefficient is applied on the basis of the extent to which the set objectives are achieved. This Plan does not involve the delivery of shares or options and the incentive pay
is not tied to the value of Repsol YPF shares. A provision of €5.1 million was recorded in 2003 to meet the commitments arising from this plan.

Incentive plan tied to the appreciation of Gas Natural SDG shares

In December 2000, 2001 and 2002, the Gas Natural Appointments and Compensation Committee approved several medium-term cash incentive plans tied
to the performance the Gas Natural SDG

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share
price addressed to senior management of Gas Natural. These incentive payments are tied to the beneficiaries remaining at Gas Natural over the plan term. The beneficiaries may exercise their
right over a number of shares previously allocated to them, at a certain benchmark price, on certain dates. The rights exercisable each year are on up to one-third of the allocated shares
and the unexercised portion is accumulable in the following years. In order to provide for possible payments to be made, Gas Natural acquired call options on its shares to be settled on the expiration
dates with the same benchmark price, as follows:

Type of Transaction

Number of Shares

Premium
(Millions of Euros)2000 Incentive Plan

Call option

256,187

1.62001 Incentive Plan

Call option

255,202

2.02002 Incentive Plan

Call option

279,411

1.9


The
cost of these options is recorded under the "Personnel expenses" caption in Gas Natural's statement of income for each year.

5. Major Shareholders and Related Party Transactions



In
accordance with the latest information available to Repsol YPF, Repsol YPF's reference shareholders beneficially owned the following number of ordinary shares of Repsol YPF:





Law
62/2003, of December 30, 2003, modified the regime set forth in Law 5/1995 regarding the transfer of the stock and the passing of certain resolutions by certain companies,
among them Repsol YPF and other members of the Repsol YPF Group. In conformity with Law 62/2003, the Government must be notified following the adoption of any of the following decisions:



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The
competent body will be entitled to oppose the notified decision or transaction if such body identifies the existence of significant risks or negative effects arising out of the
decision or transaction, whether direct or indirect, on the activities carried out by the businesses.

This
regime will remain in effect for Repsol YPF until February 6, 2006.

For
additional information related to certain restrictions affecting the acquisition of ordinary shares of Repsol YPF, see Sections 8.1.6 and 8.1.10 "Additional
InformationMemorandum and Articles of AssociationDuty to Notify the Government of Certain Transactions on the Shares of Repsol YPF and Duty to Notify the Government of
Certain Transactions and Resolutions."



Repsol YPF regularly engages in arm's-length transactions with some of its related parties, including significant shareholders, related to financing activities in
the ordinary course of business.

On
December 31, 2001, YPF entered into a forward oil sale agreement with Repsol YPF providing for the forward sale of a fixed quantity of certain types of crude oil to be
delivered monthly during seven years. The agreement was assigned to Hydrocarbons Traders Corp. (HTC) on the same date. In December 2002, in connection with the refinancing of FOS III, HTC
assigned the agreement to Oil International Limited (OIL). Also as part of this refinancing, HTC repurchased its outstanding preferred shares, which had been originally purchased by Banco Zaragozano,
a Spanish banking institution, and repaid the debt outstanding under a credit agreement in which BBVA was the sole lender. See Section 3.8.1.2 "Operating and Financial Review and
ProspectsLiquidity and Capital ResourcesTransactions With Unconsolidated Special Purpose EntitiesForward Oil Sale
Agreements."

HTC
had also entered into a marketing agreement for the sale of the crude oil with Repsol YPF Trading & Transport, S.A. (RYTTSA), a consolidated subsidiary of Repsol YPF. This
agreement was terminated in December 2002. Under the marketing agreement, RYTTSA acted as agent for HTC to arrange for the sale of the crude oil delivered to HTC by YPF.

HTC
had also entered into an oil price hedging agreement under which it would receive a fixed price and would pay variable market prices. We understand that BBVA guaranteed HTC's
obligations under its hedging agreement. YPF, in turn, entered into a separate oil price hedging agreement under which YPF would pay a fixed price and would receive variable market prices. Repsol YPF
guaranteed YPF's
obligations under the hedging agreement. These hedging agreements were terminated in December 2002.

Transactions
with significant shareholders during 2003 were as follow:

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Additionally,
the transactions undertaken by Repsol YPF, S.A. with companies within the Repsol YPF Group, and transactions between companies within the Repsol YPF Group, form part of the
Group's normal course of business with respect to its objectives and conditions. In the process of consolidation, all balances, transactions and material results between companies consolidated using
the full consolidation method have been eliminated. Transactions not eliminated in the consolidation process correspond to credits, debits, income, expenses and the results of transactions with
companies consolidated using the proportional consolidation method in proportion to the capital thereof not held by the Group; transactions with companies consolidated using the equity method; and,
transactions with companies not consolidated because of their immateriality.

The
most material transactions with group companies not eliminated during the consolidation process are loans granted and received. The consolidated balance sheet at December 31,
2003 included €765 million in assets and €225 million in liabilities related to this item. The consolidated profit and loss statement for the year ended
December 31, 2003 included €33 million from financial income and €2 million from financial expenses generated by loans with group companies not
eliminated during the consolidation process.

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At December 31, 2003, loans by Repsol YPF to its senior management totaled approximately €1.4 million and bore interest at an
average rate of 2.975%. The amounts and recipients of such loans were as follows:

|                                                    |       | Thousands of euros
|--------------------------------------------------- | ----- | ------------------
|Executive Vice President Upstream                   |       | 280               
|Chief Financial Officer                             |       | 81                
|Director of Human Resources                         |       | 102               
|Director of External Relations                      |       | 260               
|Director of Legal Affairs                           |       | 396               
|Director of Planning and Control                    |       | 143               
|Director of LPG                                     |       | 36                
|Director of Refining and Marketing in Latin America |       | 69                
|Director of Refining and Marketing in Europe        |       | 40                
|                                                    |       |                   
|                                                    | Total |                   
|                                                    |       |                   

6. Financial Information



See Item 14 for our Consolidated Financial Statements.



Repsol YPF does not believe that there are any legal or other proceedings pending to which Repsol YPF or any of its subsidiaries is a party or of which any of
their property is subject which, individually or in the aggregate, could reasonably be likely to result in a material adverse effect on Repsol YPF's business, financial condition or results of
operations.

Repsol
YPF does, however, note the following legal proceedings. For those marked with an asterisk (*) below, a provision has not been recorded as of December 31, 2003 or 2002,
since information available prior to issuance of the financial statements indicated that it was remote that a liability had been incurred at the date of the financial statements, or the amount of loss
could not be reasonably estimated. For those marked with two asterisks (**) below, a provision has not been recorded as of December 31, 2003 or 2002, since information available prior to
issuance of the financial statements indicated that it was not probable that a liability had been incurred at such date. For all other loss contingencies described below, a provision totaling
€73 million, €100 million and €159 million as of December 31, 2003, 2002 and 2001, respectively, have been recorded.



In 1993, a preliminary investigation was launched into a fuel leakage from the San Fernando service station, owned by Repsol Comercial de Productos
Petrolíferos, S.A. ("RCPP"). RCPP and CLH, as they will be held liable in tort for any damages and environmental violations that may be ascertained following the investigation, have
agreed to equally share all such liabilities. Mussini, Repsol YPF's insurer, has posted collateral of approximately €1.3 million for the estimated cost of any remediation works.
In addition, the owners of the property adjacent to the San Fernando service station have sued RCPP, CLH and the San Fernando service station claiming compensation of €148.20 for each
day that remediation works are carried out in the site and €2.7 million for alleged damages resulting from a real estate transaction that failed due to the fuel leakage. Repsol
YPF believes that both actions in connection with this matter will be dismissed. (*)

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Under the Privatization Law of YPF, the Argentine government assumed certain obligations of YPF as of December 31, 1990. Decree 546/93, concerning the
Privatization Law, set forth limitations concerning legal fees and expenses in connection with these liabilities. The Argentine government will assume these costs as long as the fees and expenses
agreed upon are fixed and are not contingent upon the amounts in dispute. YPF is required to keep the Argentine government apprised of any claim against YPF arising from the obligations assumed by the
Argentine government. In certain lawsuits related to events or acts that took place before December 31, 1990 YPF has been required to advance the payments of amount established in certain
judicial decisions. YPF believes it has the right to be reimbursed for these payments by the Republic of Argentina pursuant to the above-mentioned indemnity.

YPF
has been sued by former employees who were laid off as a result of personnel reductions in connection with the privatization of YPF. Repsol YPF believes that proper reserves have
been made in connection with these contingencies. Repsol YPF does not expect the outcome of these lawsuits to have a material adverse effect on its financial condition or future results of operations.

In
January 2003, Candlewood Timber Group LLC, a subsidiary of Forestal Santa Barbara S.R.L., sued Pan American Energy LLC, the operator of the joint venture that operates the
current exploitation concession in the Acambuco area claiming damages to its forestry business in the Acambuco area,
allegedly resulting from, among others, uncontrolled clearing of forest vegetation and soils and destruction of thousands of valuable hardwood trees by the joint venture. If the claims are sustained,
and absent a finding of gross negligence by the operator, YPF, as a 22.5% partner in the joint venture, would be held liable in such proportion. The plaintiff is also asking that the joint venture
undertake environmental remediation action to clean up the affected sites. Although the amount of the complaint has not been established yet, in January 2002 Forestal Santa Barbara sent a
letter to the operator of the joint venture claiming compensation of Ps.50 million (approximately € 13.6 million). The court in which the suit was filed
declared itself without jurisdiction to hear the suit, a decision which the plaintiff has appealed. (*)

On
December 9, 2002, YPF filed a declaratory judgment action (Acción Declarativa de Certeza) before an Argentine federal court requesting clarification as to the
uncertainty generated by opinions and statements of several organizations providing official advice that the right of the hydrocarbon industry to freely dispose of up to 70% of foreign currency
proceeds from exports of hydrocarbons products and by-products, as provided by Executive Decree 1589/89, had been implicitly abolished by the new exchange regime established by Executive
Decree 1606/02. On December 9, 2002, the federal judge issued an injunction ordering the Argentine government, the Central Bank and the Ministry of the Economy to refrain from interfering with
YPF's access to and use of 70% of the foreign exchange proceeds from its hydrocarbon exports.. Following the enactment of Decree No. 2703/02 in December 2002, YPF expanded the object of
the declaratory judgment action before the federal court to clear any doubts and uncertainty arising after the enactment of this Decree (See Section 2.3.2.10 "Information on Repsol
YPFRegulation of the Petroleum IndustryArgentinaRepatriation of Foreign Currency"). On December 1, 2003 the National Administrative Court of Appeals
decided that the issuance of Decree No.2,703 in 2002, which allows companies in the oil & gas sector to keep abroad up to 70% of the export proceeds, rendered the injunction unnecessary.
Nevertheless, the Court of Appeal's decision was silent with respect to the availability of the exemption to convert proceeds from export operations carried out by oil & gas companies into
domestic currency. On December 15, 2003, YPF filed a motion for clarification asking the court to clarify whether the exemption was available to oil & gas companies during the period
between the issuance of Decree No. 1606/01 and the issuance of Decree 2,703. On February 6, 2004, the Court of Appeals dismissed YPF's motion for clarification, indicating that the
regulations included in Decree 1,703/02 were sufficiently clear, and confirmed the lifting of the injunction that prohibited the Central Bank and the Ministry of Economy

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from
interfering with YPF's access to foreign exchange proceeds, as described above. On February 19, 2004, YPF filed an extraordinary appeal before the Supreme Court against the dismissal of
the motion for clarification by the Court of Appeals and requested the restatement of the injunction against the Central Bank and the Ministry of Economy. (**)

The
Argentine provinces where oil and gas production activities are carried out have objected to the US dollar/peso exchange rates applied by oil producers, including YPF, to the payment
of hydrocarbon royalties. YPF has reached agreement with the provinces of Rio Negro, Chubut, Santa Cruz and Mendoza, which agreements were officially approved by the Argentine Ministry of Energy,
thereby resolving the dispute. YPF has not reached agreement with the provinces of Salta and Tierra del Fuego.

In
October 2002 YPF and Repsol YPF Gas S.A received the notification of a complaint initiated by Autogas S.A.. The complaint was answered on December 12, 2002, and no
further procedures have taken place since that date. Autogas claims damages in the amount of Ps.117.3 million (approximately € 32 million) for YPF's alleged
exercise of its dominant market position in the LPG market, alleged breach of contract and violation of the trademark laws during the period from 1994 to 1997. YPF believes that the lawsuit is without
merit and that documents filed at trial have so far failed to prove a causal connection between the alleged misconduct and the amount of damages sought. (*)

In
May 2002 the Centro de Retirados de la Armada Nacional sued Repsol YPF seeking that it remediate alleged environmental damages in Rio de La Plata, Rio Santiago and Pluma Rio
Santiago due to water contamination allegedly caused by the operations of the La Plata refinery. The complaint estimates the cost of compliance at US$1,391 million (approximately
€ 1,104 million). YPF believes that the majority of environmental damages alleged by the plaintiff, if proven, would be attributable to events that occurred prior
to YPF's privatization and would therefore be the sole responsibility of the Argentine government in accordance with the Privatization Law of YPF. The complaint has not yet been served. (*)

In
April 2002 the Sub-secretary of Energy for the Province of Neuquén imposed a fine on YPF of Ps.27 million (approximately
€ 7.4 million), including penalties and interest, for excess gas venting in the Loma La Lata, Cerro Bandera and Filo Morado gas fields, between 1995 and 1997. YPF
has appealed the fine. The Sub-secretary of Energy for the Province of Neuquén has subsequently reduced the fine to Ps. 701,263, which amount has been cancelled.

In
July 2002 EDF Internacional S.A. ("EDF") initiated an international arbitral proceeding under the Arbitration Regulations of the International Chamber of Commerce against
Endesa Internacional S.A., Repsol YPF and YPF. EDF claims from Repsol YPF and YPF the payment of US$69 million (€ 55 million). EDF claims that under a Stock
Purchase Agreement dated March 30, 2001 among Endesa Internacional S.A. and Astra Compañía Argentina de Petróleo S.A (subsequently merged into YPF),
as sellers, and EDF, as purchaser, with respect to shares of Electricidad Argentina S.A. and Empresa Distribuidora y Comercializadora Norte S.A., EDF is entitled to an adjustment in the purchase price
it paid due to changes in the exchange rate of the Argentine peso which EDF considers occurred in part prior to December 31, 2001. YPF's position is that the change in the exchange rate did not
occur prior to January 2002 and, therefore, EDF is not entitled to the purchase price adjustment. YPF has lodged a counterclaim against EDF in the amount of US$13.85 million
(€ 11 million) as a purchase price adjustment. YPF's management believes that EDF's position is without merit. During the year 2003 the arbitral tribunal had
substantiated the defence of jurisdiction submitted by Repsol YPF, based on the circumstance that it was not a party at the Stock Purchase Agreement subscribed by Astra
Compañía Argentina de Petróleo S.A.. A decision on that respect is expected for the first months of the year 2004, after which the arbitral tribunal should
continue the proceedings regarding the claims of the parties. (**)

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An
action has been brought against YPF for a total amount of US$ 457 million (€ 363 million) by the Confederación
Indígena del Neuquén, the Agrupación Mapuche Paynemil, the Agrupación Lof Comunidad Kaxipayiñ and 95 individuals members of
these associations claiming damages for contractual termination and damages caused by hydrocarbon exploration and exploitation activities in the Loma La Lata-Sierra Barrosa site in the
Province of Neuquén. The claim is based on alleged damages caused to the Mapuche native community and culture, as well as physical and psychological health impairments, site
contamination and environmental and moral damages. The plaintiffs have claimed that US$ 306 million (€ 243 million) of the total claim is for remediation
purposes. YPF has notified the Argentine Government of this lawsuit pursuant to the Privatization Law of YPF. YPF considers this suit to be without merit. (*)

On
November 17, 2003, the National Antitrust Commission (CDNC) requested explanations, within the framework of an official investigation under the terms of Art. 29 of the
Antitrust Act, from a group of almost 30 (thirty) natural gas production companies, among them YPF, with respect to the following items: (i) the inclusion of clauses purportedly restraining
trade in natural gas purchase/sale contracts and (ii) gas imports from Bolivia, in particular (a) old expired contracts signed by YPF when it was state-owned and YPFB (the Bolivian
state-owned oil company), under which CNDC-YPF sold Bolivian gas in Argentina at prices below the purchase price; and (b) the unsuccessful attempts in 2001 by Duke and Distribuidora de Gas del
Centro to import gas into Argentina from Bolivia. On January 12, 2004, YPF submitted explanations in accordance with Art. 29 of the Antitrust Act, contending that no antitrust violations had
been committed and that there had been no price discrimination between natural gas sales in the Argentine market and the export market. At this point, the CNDC may accept Repsol YPF's explanations or
launch a criminal investigation. (*)

In
October 2002, YPF was notified of complaints by neighbors of a YPF service station claiming US$21.56 million (approximately
€ 17 million) in damages allegedly resulting from a fuel leakage coming from that station. (*)

In
March 22, 1999 National Antitrust Commission (CNDC) Decision No. 189/99 ordered an investigation into whether abuse of a dominant market position, which occurred during
the period from 1993 until September 1997 had been repeated in the period from October 1997 until March 1999. On December 19, 2003, the CNDC completed its investigation and
charged YPF with abuse of a dominant market position had occurred during this period. On January 20, 2004, YPF filed a response seeking to have the decision reversed on the basis of the
procedural defects, the application of the statute of limitations and certain substantive defences. Considering the criterion settled by the Argentine Supreme Court in relation to the process of law
against YPF for the period from 1993 through 1997, which established the term for administrative infractions (under Law No. 22,262) for two years, the mentioned claim for the application of the
statutes of limitation should prosper. Since the imputed conduct occurred before September 29, 1999, effective date of the new law, YPF believes that the applicable law to the proceeding is Law
No. 22,262, instead of the new Antitrust Protection Law (No. 25,156). YPF filed appeals with the National Economic Criminal Court: (i) on July 29, 2003, in view of the
rejection by the CNDC of the motion to overturn the resolution that ordered the opening of the preliminary investigations, without deciding in advance on the prescription claimed by YPF; and
(ii) on February 4, 2004, in view of the rejection by the CNDC of the motion to overturn the resolution which ordered the charge because of a lack of majority and prejudgment. (*)

On
November 7, 2003, the then-National Deputies, Arturo Lafalla, Ricardo Falu and others, filed with the CNDC a complaint against YPF for abuse of a dominant position
in the bulk LPG market during 2002 and part of 2003. The alleged conduct consisted in selling bulk LPG in the domestic market at prices greater than those of the export price, thereby restricting the
availability of bulk LPG in the domestic market. On December 15, 2003, the CNDC decided to forward the complaint to YPF, and request from it explanations under the terms of Art. 29 of the
Antitrust Act. On January 21, 2004, YPF submitted explanations in accordance with Art. 29 of the Antitrust Act, contending that no

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antitrust
violations had been committed. At this point, the CNDC may accept YPF's explanations or launch a criminal investigation. YPF contends that it did not restrict LPG supply in the domestic
market during the relevant period and that during this period all domestic demand for LPG could have been supplied by YPF's competitors' production, and therefore YPF's market share could not be
deemed a dominant position. (*)

On
March 29, 2004, the Province of Neuquen fied a complaint for an undetermined amount against YPF, claiming the payment of compensations on account of easements on provincial
fiscal lands located is areas granted to YPF as concessionaire of hydrocarbon exploitation rights. The complain also ask for compensation for the use of certain materials that YPF allegedly removed
from fiscal lands and for the loss of opportunity due to YPF's alleged interference with the development of irrigation works in the Loma La Lata field. YPF is requesting that the complaint be
dismissed on grounds that certain provisions of the Mining Code establish the gratuitous nature of such easements. YPF has also argued that the materials founds on fiscal lands are of common use,
provided the Province has not granted the rights thereof to third-parties and that the regular exercise of easement rights imply restrictions to their owners' domain, and that the claim is not
supported by the evidence on record. (*)

On
April 20, 2004, YPF was notified of an arbitration complaint filed by CMS ENSENADA S.A. in connection with a supply contract for electric power and vapor to La Plata Refinery,
entered into on August 16, 1995 between YPF and Energía y Vapor S.A.CMS Ensenada S.A., UTE (subsequently succeeded by CMS ENSENADA S.A.). CMS asserts that payments
by YPF for electricity and vapor supplied under the agreement must be made in the currency originally agreed-upon (United States USD) and not in Argentine pesos. It argues that the
"pesification" of obligations in foreign currency imposed by the Public Emergency Law is unconstitutional. YPF is preparing an answer to the complaint. (*)



The following is a brief description of certain potential environmental and other liabilities of Maxus, which mostly arise in connection with the sale of
Chemicals to a subsidiary of Occidental in 1986.
Under the stock purchase agreement related to that sale, Maxus assumed certain liabilities related to past operations of Chemicals.

In
addition, under the agreement pursuant to which Maxus sold Chemicals to Occidental, Maxus is obligated to indemnify Chemicals and Occidental for 50% of certain environmental costs
incurred on projects involving remedial activities relating to chemical plant sites or other property used in the conduct of the business of Chemicals as of the Closing Date and for any period of time
following the Closing Date which relate to, result from or arise out of conditions, events or circumstances discovered by Chemicals and as to which Chemicals provided written notice prior to
September 4, 1996, irrespective of when Chemicals incurs and gives notice of such costs, with Maxus' aggregate exposure for this cost sharing being limited to US$75 million
(€ 59.5 million). Henkel Corporation was assigned certain of Chemicals' and Occidental's rights and obligations under such indemnity. The total expended by the
Company under this cost sharing arrangement was approximately US$64.2 million (€ 50.95 million) as of December 31, 2004. The remaining portion of this
cost sharing arrangement has been reserved.

Tierra
has agreed to assume essentially all of Maxus' aforesaid indemnity obligations to Occidental in respect of Chemicals.

As
of December 31, 2003, Maxus had established reserves in the amount of approximately US$66.3 million (€ 51.9 million) to cover all
material contingencies related to the environmental liabilities assumed under the stock purchase agreement. Maxus believes that these reserves are adequate to cover all material contingencies to the
extent that they are probable and reasonably

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estimable.
Nevertheless, changes in the current circumstances, including the assessment of natural resources damages could result in increase of these liabilities in the future.

A
consent decree, previously agreed upon by the U.S. Environmental Protection Agency (the "EPA"), the New Jersey Department of Environmental Protection and Energy (the "DEP") and
Occidental, as successor to Chemicals, was entered in 1990 by the United States District Court of New Jersey and requires implementation of a remedial action plan at Chemicals' former Newark, New
Jersey agricultural chemicals plant. In 1998, the EPA approved the remedial design. The construction of the approved remedy was substantially completed in early 2002. The facility is in an
optimization phase, which includes testing and related operations and is expected to continue through 2004. This work is being supervised and paid for by Tierra pursuant to the above described
indemnification obligation to Occidental. The Company has fully reserved the estimated costs required to complete the optimization phase and thereafter to conduct ongoing operation and maintenance of
such remedy (at an average cost of approximately US$1 million annually) for 9 years from and after January 1, 2004.

In
September 2002, Occidental sued Maxus and Tierra in state court in Dallas, Texas seeking a declaration that Maxus and Tierra have an obligation under the agreement pursuant to
which Maxus sold Chemicals to Occidental to defend and indemnify Occidental from and against certain historical obligations of Chemicals, including claims related to "Agent Orange" and vinyl chloride
monomer (VCM), notwithstanding the fact that (a) the agreement contains a 12-year cut-off date for defense and indemnity with respect to most litigation, and
(b) Tierra is not a party to the agreement. Maxus and Tierra do not believe Occidental's claims have substantial merit. In this regard, in June 2003 the U.S. Supreme Court affirmed, by a
four to four vote, a decision of the Second Circuit Court of Appeals which held that the 1984 settlement of the claims of Vietnam veterans does not preclude certain Vietnam veterans from asserting
claims alleging injury due to Agent Orange exposure. While Maxus believes that there are a number of valid defenses to any claims that may be asserted by Vietnam veterans who are not bound by the
terms of the 1984 settlement, it also believes that Occidental is responsible for any Agent Orange lawsuits filed after the September 4, 1998 cut-off date. (*)

Studies
have indicated that sediments of the Newark Bay watershed, including the Passaic River adjacent to Chemical's former Newark plant, are contaminated with hazardous chemicals from
many sources. These studies suggest that the older and more contaminated sediments located adjacent to the former Newark plant generally are buried under more recent sediment deposits. As agreed with
Maxus, Tierra is conducting further testing and studies pursuant to an agreement with the "EPA" to characterize contaminated sediment and biota, as well as the stability of the sediments, in a
six-mile portion of the Passaic River near the plant site. Maxus expects to complete these tests and studies in 2004 at a cost of approximately US$7.9 million
(€6.3 million) after December 31, 2003, which amount has been fully reserved. Maxus cannot reasonably forecast what remedial program, if any, will be proposed for the
Passaic River or the Newark Bay watershed and, therefore, cannot estimate what additional costs, if any, will be required to be incurred. However, it is possible that additional work, including
interim remedial measures, may be ordered with respect to the Passaic River.

On
September 19, 2003, the New Jersey Department of Environmental Protection and Energy (the "DEP") issued a directive seeking to address natural resource damages allegedly
resulting from almost 200 years of historic industrial and commercial development of the lower 17 miles of the Passaic River and a part of its watershed. The directive was served on
approximately 66 entities (including Maxus, Occidental and certain of their affiliates) and asserts that the named entities are jointly and severally liable for the alleged natural resource damages
without regard to fault. Maxus and Tierra have filed a response to the directive which sets forth both how these parties are complying with the directive and defenses thereto. (**)

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In addition, on November 2003, several environmental groups sent a Notice of Intent to sue to Tierra, Maxus and others stating their intention to sue for "abatement of an imminent
and substantial endangerment to health and environment" in connection with alleged discharges from Chemicals' former Newark plant. On February 13, 2004, the EPA and Occidental entered into an
administrative order on consent pursuant to which Tierra (on behalf of Occidental) has agreed to conduct testing and studies to characterize contaminated sediment and biota in the Newark Bay. Once the
work plan for and estimated cost of these studies have been determined, an appropriate reserve will be established. Tierra and Maxus believe the concerns raised by these groups are being addressed
through existing regulatory mechanisms, including the administrative order on consent, and the threatened litigation is unnecessary. (*)

Until
1972, Chemicals operated a chromite ore processing plant at Kearny, New Jersey. According to the DEP, wastes from these ore processing operations were used as fill material at a
number of sites in and near Hudson County, New Jersey. Tierra, pursuant to an agreement with Maxus, is performing investigation and remediation work at certain chromite ore residue sites in Kearny and
Secaucus, New Jersey. While Tierra has participated in the cost of studies and is implementing interim remedial actions and conducting remedial investigations, the ultimate cost of remediation is
uncertain. As of December 31, 2003, Maxus had reserved US$29.6 million (€ 23.5 million) for the estimated cost of the investigations and remedial work
to be performed. In addition, the DEP has indicated that it expects Occidental and Maxus to participate with the other chromium manufacturers in the funding of certain remedial activities with respect
to a number of so-called "orphan" chrome sites located in Hudson County. In that regard, Occidental and Maxus have declined participation as to those sites for which Maxus believes there
is no evidence of residue generated by Chemicals.

Chemicals
has also been designated as a potentially responsible party by the EPA under the Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended, with
respect to a number of third party sites where hazardous substances from Chemicals' plant operations allegedly were disposed or have come to be located. Numerous potentially responsible parties have
been named at substantially all of these sites. At several of these, Chemicals has no known exposure. Although potentially responsible parties are typically jointly and severally liable for the cost
of investigations, cleanups and other response costs, each has the right of contribution from other potentially responsible parties and, as a practical matter, cost sharing between them is usually
effected by agreement. At a number of these sites, the ultimate response cost and Chemicals' share of such costs cannot be estimated at this time. Maxus has reserved approximately
US$4.7 million (€ 3.7 million) for its estimated share of costs related to these sites, where such costs are both probable and reasonably estimable.

In
February 2001, the Port of Houston Authority (the "Port") sued a number of parties, including Occidental as successor to Chemicals, claiming damages to its property as a result
of contamination
allegedly emanating from, among other locations, Chemicals' former Greens Bayou facility. Tierra is handling this matter on behalf of Occidental. While some of the contaminating substances may have
been manufactured at the Greens Bayou facility prior to its sale, Tierra and Maxus believe that any contamination of the Port's property that may have been caused by such facility occurred after the
sale and conveyance of the Greens Bayou facility. The Port's claims have been settled for an initial payment of US$30 million (€23.8 million) and certain other
undertakings, including an agreement to remediate several nearby properties. The estimated cost of such remediation is not expected to exceed US$80 million
(€ 63.5 million). Pursuant to a cost sharing agreement among the defendants, Tierra (on behalf of Occidental) contributed US$6.3 million
(€ 5.0 million) toward the settlement, subject to the defendants' agreement to arbitrate their respective obligations in connection with the settlement. The
arbitration is expected to begin in the second half of 2004.

From
about 1912 through 1976, Chemicals operated manufacturing facilities in Painesville, Ohio, involving several discrete but contiguous plant sites over an area of about 1,300 acres.
The primary area

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of
concern historically has been Chemicals' former chromite ore processing plant. In 1995, the Ohio Environmental Protection Agency (the "OEPA") issued its Director's Final Findings and Order (the
"Director's Order") by consent ordering that a remedial investigation and feasibility study (the "RIFS") be conducted at the former Painesville plant area. Tierra has agreed to participate in the RIFS
as required by the Director's Order. In March 2002, Tierra submitted a remedial investigation report covering the entire site to the OEPA and will submit required feasibility reports
separately. As of December 31, 2003, it is estimated that the remaining cost of performing the RIFS will be approximately US$0.6 million. YPF Holdings has reserved its estimated share of
the cost to perform the RIFS and an additional US$0.6 million as of December 31, 2003 for operation and maintenance activities at this site. The scope and nature of any further
investigation or remediation that may be required cannot be determined at this time; however, as the RIFS progresses, YPF Holdings will continuously assess the condition of the Painesville plant area
and make any changes, including additions, to its reserve as may be required. Tierra has entered into an agreement with a developer for the possible development and use of all or portions of this
site. While the developer is proceeding with its development plans, there can be no assurance that this site will be successfully developed or that any productive use can be made of all or a portion
of this site.

There
are a number of other former Chemicals' plant sites for which Maxus has agreed to perform environmental remediation work on behalf of Occidental, which Repsol YPF believes will not
have a material adverse result on its financial position.



See Section 8.2 "Additional InformationDividends."

7. Offering and Listing



Repsol YPF's shares are listed on the Spanish Stock Exchanges and quoted on the Automated Quotation System. Repsol YPF's shares have also been quoted since
November 30, 1999 on theBolsa de Comercioin Buenos Aires in the form of Argentine certificates of deposit (CEDEARS or certificados de depósito
argentinos). The ADSs, each representing one share, are listed on the New York Stock Exchange. The Bank of New
York is Repsol YPF's depositary issuing ADSs under the deposit agreement dated May 15, 1989, as amended in February 22, 1993, July 6, 1999, and as further amended and restated as
of July 7, 2002, among Repsol, The Bank of New York, as depositary, and the holders from time to time of ADSs. All per ADS and per share data presented below have been adjusted to reflect the
three-for-one stock split of shares of Repsol YPF which occurred on April 19, 1999.

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The
tables below sets forth, for the periods indicated, the reported high and low sales prices of ADSs on the New York Stock Exchange:

U.S. dollars per ADSHigh

Low1999First Quarter

20.047

16.875Second Quarter

20.500

15.440Third Quarter

24.250

18.625Fourth Quarter

23.000

18.0002000First Quarter

23.000

18.000Second Quarter

22.000

18.875Third Quarter

20.875

18.250Fourth Quarter

19.500

14.6252001First Quarter

18.730

15.940Second Quarter

19.500

16.250Third Quarter

17.490

12.500Fourth Quarter

15.350

13.1202002First Quarter

14.770

11.450Second Quarter

13.150

10.080Third Quarter

13.490

10.180Fourth Quarter

13.260

10.2202003First Quarter

15.23

13.10Second Quarter

16.94

14.36Third Quarter

17.48

15.59Fourth Quarter

19.69

16.60


U.S. dollars per ADSHigh

Low2003December

19.69

17.482004January

21.10

19.12February

21.74

20.15March

15.23

13.10April

22.17

20.30May

21.99

16.69June (through June 28)

22.54

20.76


On
June 28, 2004, the reported last sale price of the ADSs on the New York Stock Exchange was $21.99 per ADS.

As
of December 31, 2003, 5.70% (69,592,992 ordinary shares) of the ordinary shares were held in the form of ADSs by 126 holders of record, including The Depository Trust Company.

The
tables below sets forth, for the periods indicated, the reported high and low quoted prices for the ordinary shares on the Automated Quotation System, which is the principal Spanish
trading system

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for
the ordinary shares. On January 4, 1999, the Madrid Stock Exchange began quoting share prices in euros. The exchange rate at which the Spanish peseta has been irrevocably fixed against the
euro is Ptas. 166.386 = €1.00. All share prices in pesetas for the period prior to January 4, 1999 have been translated at the irrevocable euro-peseta
exchange rate.

High

Loweuros per share1999First Quarter

17.33

14.33Second Quarter

20.25

14.64Third Quarter

20.87

18.24Fourth Quarter

24.25

17.652000First Quarter

23.47

18.17Second Quarter

23.47

20.13Third Quarter

24.01

20.00Fourth Quarter

22.43

16.202001First Quarter

20.45

16.99Second Quarter

21.97

18.81Third Quarter

19.70

13.75Fourth Quarter

17.00

14.302002First Quarter

16.20

12.93Second Quarter

14.95

10.65Third Quarter

13.83

10.15Fourth Quarter

13.03

10.592003First Quarter

14.30

11.79Second Quarter

14.41

12.83Third Quarter

15.88

13.84Fourth Quarter

15.59

14.04


High

Loweuros per share2003December

15.59

14.372004January

16.68

15.38February

16.96

16.09March

16.98

16.17April

18.45

16.56May

18.03

16.45June (through June 28)

18.48

17.06


On
June 28, 2004 the closing price of the ordinary shares in the Automated Quotation System was €18.25 per share, equal to $22.26 at the Noon Buying Rate on
June 28, 2004.

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The
table below sets forth, for the periods indicated, the reported high and low quoted prices for the ordinary shares on the Buenos Aires Stock Exchange, which is the principal
Argentine stock exchange for the ordinary shares.

High

Lowpesos per share2001First Quarter

18.70

15.80Second Quarter

19.50

16.00Third Quarter

17.35

13.00Fourth Quarter

22.80

13.122002First Quarter

47.00

20.00Second Quarter

48.50

36.00Third Quarter

51.00

39.00Fourth Quarter

49.50

39.902003First Quarter

48.00

42.00Second Quarter

47.00

41.00Third Quarter

51.50

43.50Fourth Quarter

58.00

48.00


High

Lowpesos per share2003December

58.00

51.502004January

62.00

57.25February

64.00

58.75March

62.00

57.50April

62.00

58.40May

63.00

57.00June (through June 28)

66.00

60.00


On
June 28, 2004, the closing price of the ordinary shares on the Buenos Aires Stock Exchange was Ps 65.50 per share.

Repsol
YPF and its subsidiaries do not currently make a market or trade in the ordinary shares and have not held and do not hold any of the ordinary shares.



At December 31, 2003, there were 106 companies listed and traded on the Automated Quotation System. The market capitalization of all companies listed on
the Madrid Stock Exchange as of December 31, 2003 was approximately €547,762.5 million, and reported trading volume of companies for 2003 was
€494,346 million.



The
Automated Quotation System was introduced in 1989, and links the four local exchanges in Madrid, Barcelona, Bilbao and Valencia (the "local exchanges"). It provides listed securities
with a uniform continuous market, eliminating certain differences among the local exchanges. The principal feature of the system is the computerized matching of buy and sell orders at the time the
order is entered. Each order is executed as soon as a matching order is entered, but can be modified or

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canceled
until execution. The activity of the market can be continuously monitored by investors and brokers. The Automated Quotation System is quoted and regulated by Sociedad de Bolsas, S.A. (the
"Sociedad de Bolsas"), a corporation owned by the companies that manage the local exchanges. All trades on the Automated Quotation System must be placed through a brokerage firm, an official stock
broker or a dealer firm.

Since
May 2001, new regulations have been adopted with regard to the maximum daily price variation of securities traded on the Automated Quotation System. The maximum daily price
fluctuation of 15% has been replaced by a system of two price fluctuation bands based on the historic volatility for each security. The two fluctuations bands, denominated static price range and
dynamic price range, are fixed around the static price and the dynamic price, respectively.

Static price range:The static price range is a fluctuation band established around the static price of a security, fixing
the maximum allowed price variation with respect to each security on any trading day. The static price for each security is settled daily during the pre-opening session from
8:30 a.m. to 9:00 a.m. The fluctuation band is peculiar to each security, and in the case of Repsol YPF, the maximum allowed variation with respect to the static price is 4%. If there
are offers or bids outside of this fluctuation band, trading of the security is temporarily halted, and a "volatility auction" takes place to settle a new static price for the day. The fluctuation
band established around the static price applies not only to open market trades, but also to the pre-opening session, the volatility auction and the closing auction.

Dynamic price range:The dynamic price range is a fluctuation band established around the dynamic price of a security, fixing
the maximum allowed price variation allowed between subsequent trade orders. The dynamic price, which is determined continuously during the day, corresponds to the most recent price at which a
security has been traded. In the case of Repsol YPF, the maximum allowed variation with respect of the dynamic price is 1%. This fluctuation band detects significant price movements between two
subsequent trades. If there are offers or bids outside the fluctuation band, trading of the security is halted for five minutes and a "volatility auction" takes place in order to settle a new static
price. The fluctuation band fixed around the dynamic price applies only to open market trading and closing auction operations, and is not applicable to bids and offers made during the
pre-opening session and the volatility auction.

Between
5:30 p.m. and 8:00 p.m., trades may occur outside the computerized matching system without prior authorization of the Sociedad de Bolsas. These trades may occur:



Trades
may take place at any time (with the prior authorization of the Sociedad de Bolsas) at any price if:



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Information
with respect to the computerized trades between 9:00 a.m. and 5:30 p.m. is made public immediately, and information with respect to trades outside the
computerized matching system is reported to the Sociedad de Bolsas by the end of the trading day and published in theBoletín de
Cotizaciónand in the computer system by the beginning of the next trading day.

In
September 1998, new rules were adopted by theSociedad de Bolsaswith respect to block trades of at least 600,000 euro and
representing at least 5% of the average daily trading volume during the last quarter ended of the security being traded. The new rates apply to securities that constitute the IBEX-35,
including Repsol YPF.

Pursuant
to Royal Decree (Real Decreto 116/92) of February 14, 1992 and to Repsol YPF's by-laws, Repsol YPF's ordinary shares are in book-entry form. The
clearance and settlement system and its members referred to below are responsible for maintaining records of purchases and sales under the book entry system.



Transactions
carried out on the Automated Quotation System are cleared and settled through theSociedad de Sistemas(Iberclear). Only
participating entities of the system are entitled to use it. Furthermore, access to become a participating entity is restricted to authorized members of the Automated Quotation System, the Bank of
Spain (when an agreement, approved by the Spanish Ministry of Economy, is reached with Iberclear) and, with the approval of the CNMV, other brokers not members of the Spanish stock exchanges, banks,
savings banks and foreign settlement and clearing systems.

Iberclear
is owned byBolsas y Mercados Españoles Sociedad Holding de Mercados y Sistemas Financieros, S.A.,a newly
incorporated holding company which holds a 100% interest in each of the Spanish official secondary markets and settlement systems. See Section 7.3.1"Integration of the Spanish
Official Organized Secondary Markets and Clearing and Settlement Systems into a Single Holding Company". The clearance and settlement system and its members are responsible for maintaining records of
purchases and sales under the book-entry system. Shares of listed Spanish companies are held in book-entry form. Iberclear, which manages the clearance and settlement system,
maintains a registry reflecting the number of shares held by each of its member entities on its own behalf as well as the number of shares held on behalf of third parties. Each member entity, in turn,
maintains a registry of the owners of such shares. Spanish law considers the legal owner of the shares to be:



Iberclear
has approved regulations introducing the so-called "D+3 Settlement System" by which the settlement of any transactions must be made within three business days
following the date on which the transaction was carried out.

Obtaining
legal title to shares of a company listed on a Spanish stock exchange requires the participation of a Spanish official stockbroker, broker-dealer or other entity authorized
under Spanish law to record the transfer of shares. To evidence title to shares, at the owner's request the relevant member entity must issue a certificate of ownership. If the owner is a member
entity, Iberclear is in charge of the issuance of the certificate with respect to the shares held in the member entity's name.

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Spanish
Law 37/1998, which implements a European Union directive, allows, in specified circumstances, for the transfer of ownership of shares of a company listed on a Spanish stock exchange without
complying with one or more of the requirements described above. However, secondary legislation required to implement this law in Spain has not been enacted as of the date of this offering memorandum.



The Securities Markets Act was enacted in 1988 with the purpose of reforming the organization and supervision of the Spanish securities markets. This legislation
and regulation implementing it



The
enactment of Act 44/2002, of November 22, 2002, on measures for the improvement of the financial system, has introduced significant development to the Securities Markets Act
regime, including:



Act
26/2003, of July 17, amending the Securities Markets Act and the Corporations Act, provides for new regulation concerning listed companies. The main developments include the
following:



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On
June 20, 2001, the Management Companies (Sociedades Rectoras) of the Spanish stock exchanges, the AIAF Private Debt Wholesale
Market, the MEFF and Citrics Futures and Options Markets, Senaf, A.V. S.A. S.O.N and Iberclear (a company incorporated by the prior Securities Clearing and Settlement Service, the SCLV and the Bank of
Spain. in its capacity as management entity of the settlement system of the Public Debt Market) entered into a protocol relating to their integration into a single holding company.

In
furtherance of this protocol, on February 5 and 6, 2002, virtually all the shareholders of the aforementioned different companies involved entered into a framework agreement
whereby, subject to certain conditions, including obtaining the authorization of the Spanish government as provided for in the 17th Additional Provision of the Securities Market Act 1988, as amended
the shareholders of the relevant companies which operate the different secondary markets and settlement systems agreed to the incorporation of a holding company, to be named Bolsas y Mercados Españoles, Sociedad Holding
de Mercados y Sistemas Financieros, S.A.,and to procure that the holding company launch an
offer to all the shareholders of the relevant companies to exchange their shares in such companies for newly issued shares in the holding company.

In
compliance with the framework agreement,Bolsas y Mercados Españoles, Sociedad Holding de Mercados y Sistemas Financieros,
S.A.was incorporated on February 15, 2002. The determination of the relevant share exchange ratios and the contribution by the shareholders of the shares of the
different companies into the holding company in exchange for newly issued shares in the holding company was approved on June 18, 2002 by its shareholders. Authorization from the Council of
Ministers (Consejo de Ministros) was granted on September 27, 2002, constituting the last step for incorporation of the holding company. The
holding company has become the sole. shareholder of the companies which operate the
different secondary markets and settlement systems. As of October 2002, all of the shareholders of the different companies involved, except the Bank of Spain in respect to its stake in
Iberclear, contributed their shares into the holding company in exchange for newly issued shares in the holding company. Therefore, the holding company became the sole shareholder of the companies
which operate the different secondary markets and settlement systems in Spain, except for the 39.7% of the capital of Iberclear which was owned by the Bank of Spain. As of September 2003, the
Bank of Spain contributed its shares in Iberclear (39.7%) in exchange of new shares in the holding company.



The Spanish Corporations Law, dated December 22, 1989, prohibits the purchase by Repsol YPF and its affiliates of ordinary shares of Repsol YPF in the
secondary market except in limited circumstances: (i) such a purchase of ordinary shares must be authorized by a General Meeting of shareholders of Repsol YPF, (ii) the ordinary shares
so purchased are without economic or voting rights while held by Repsol YPF and without voting rights while held by its affiliates, and (iii) the total number of ordinary shares held by Repsol
YPF and its affiliates may not exceed 5% of the total capital of Repsol YPF. Any acquisition of ordinary shares of Repsol YPF exceeding, or that causes Repsol YPF's and its affiliates holdings to
exceed, one percent of Repsol YPF's share capital must be reported to the CNMV.

The
General Shareholders' Meeting held on March 31, 2004, authorized the Board of Directors to purchase ordinary shares of Repsol YPF in the secondary market for a period of
18 months from the

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Shareholders'
Meeting date. Since that date, neither Repsol YPF nor any of its affiliates have participated in the market buying ordinary shares or held any ordinary shares of Repsol YPF.



Since 1993, Repsol YPF has had in place an internal code of conduct in which the principles and regulation of behavior in stock market trading are established.

The
Code of Conduct regulates the holding and investment in shares of the Company by Directors of Repsol YPF, S.A. and the companies that comprise the Repsol YPF Group, as well as
certain members of management and employees. It also establishes the obligations on the part of such persons in
relation to confidential information, and extends these obligations to external advisors who, by reason of the provision of professional services to Repsol YPF or companies within the Repsol YPF
Group, may have access to this type of information.

The
current Code of Conduct was approved by the Board of Directors of Repsol YPF at a meeting held on July 26, 2003, and incorporates the precepts of the Law on Financial System
Reform, Law 44/2002, of November 22, incorporating as well best practices in the area with the goal of contributing to the development of transparency and proper functioning of the stock
markets and the protection of investors' interests. Likewise, the current Code of Conduct has been adapted to meet standard market practice in Argentina and New York, in those circumstances in which
such market practice is applicable.

This
Regulation has been deposited with the CNMV and is also available on the Repsol YPF web-pagewww.repsolypf.com(which
does not form part of this annual report).

8. Additional Information



Repsol
YPF, S.A. is governed by its by-laws, by applicable law and regulations governing corporations and laws and regulations of a general nature that are applicable to it.
Specifically, the Revised Text of the Corporations Law, Legislative Royal Decree 1564/1989, of December 22, underwent major changes with respect to publicly-traded corporations in 2003.

Repsol
YPF, S.A. was incorporated on November 12, 1986, by public deed notarized before the Public Notary of Madrid, D. Miguel Mestanza Fragero, filing number 4,293. The amendment
of the by-laws to conform to the Revised Text of the Corporation Law of 1989 was approved by the annual general shareholders' meeting held on June 9, 1992. At the annual general
meeting of shareholders held June 28, 2000, the shareholders approved the proposal to change the company's name
to "Repsol YPF, S.A." effective as of the same date. Repsol YPF is registered in the Commercial Registry of Madrid on page M-65289.

For
a detailed description of Repsol YPF's objective and corporate purpose please see Section 2.1.2 "Information on Repsol YPFRepsol YPFOrganization of
Repsol YPF." Repsol YPF's corporate purpose is established in Article 2 of its by-laws. Copies of the by-laws, which have been incorporated by reference in this annual
report, are available at the offices of Repsol YPF and are also available on the Repsol YPF web-pagewww.repsolypf.com(which does not form
part of this annual report).



As
of the date of this annual report, the issued capital of Repsol YPF is €1,220,863,463 divided into a single series of 1,220,863,463 shares in book entry form, with a
nominal value of €1.00 each.

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On
February 24, 1999, the Repsol YPF Board of Directors approved the redenomination of Repsol YPF's capital stock in euros.

The
shares are in book-entry form. Shares are indivisible. Co-owners of one share must designate a single person to exercise their shareholders' rights, but they
are jointly and severally liable to Repsol YPF for all the obligations flowing from their status as shareholders. The Sociedad de Sistemas (Iberclear)
(see Section 7.2.2. "Offering and ListingNature of the Trading MarketClearance and Settlement System") maintains a registry reflecting the number of shares held by
each of its member entities (entidad participante) as well as the amount of these shares held on behalf of beneficial owners. Each member entity, in
turn, maintains a registry of the owners of these shares. Transfers of shares quoted on the Spanish Stock Exchanges must be made through or with the participation of a member of a Spanish Stock
Exchange that is an authorized stockbroker by book entry or delivery of evidence of title to the buyer.



Payment
of the interim dividend may be approved by the Board of Directors without shareholder approval provided that sufficient liquidity exists for purposes of the distribution (the
amount to be distributed may not exceed the net income obtained since the close of the prior fiscal period, less losses
from prior periods, amounts to be applied to reserves as required by applicable law or by the by-laws and the estimate of income tax to be paid on such net income. Payment of the final
dividend is proposed by the Board of Directors and must be authorized by the shareholders at a general meeting. Holders of shares participate in such dividends for each year from the date agreed by a
general meeting. According to Spanish law and Repsol YPF's by-laws, dividends may only be paid out of profits or distributable reserves if the value of Repsol YPF's net worth is not, and
as a result of distribution would not be, less than its capital stock. The right to a dividend lapses and reverts to Repsol YPF if it is not claimed within five years after it becomes due.

Dividends
payable by Repsol YPF to non-residents of Spain are subject to a Spanish withholding tax at the rate of 15%.

Under
the deposit agreement with The Bank of New York as depositary under which the ADRs evidencing the ADSs are to be issued, dividends in connection with shares represented by the ADSs
being offered will be received by the depositary.

Upon
liquidation of Repsol YPF, the shareholders would be entitled to receive proportionately any assets remaining after the payment of Repsol YPF's debts and taxes and expenses of the
liquidation.



The
members of the Board of Directors shall be elected by vote. For purposes of this election, any shares voluntarily grouped together in order to constitute a sum of capital equal to or
greater than that resulting from dividing such grouped shares by the number of Board members, shall be entitled to appoint those who, exceeding whole fractions, are deducted from the corresponding
proportion. Repsol YPF's directors are elected for terms of four years, and are reelected in staggered terms of one year. One-fourth of the Board of Directors is reelected each year. The
Board of Directors may designate directors from among shareholders of Repsol YPF to fill a vacancy on the Board of Directors until the next general shareholders' meeting.

Under
Spanish law, directors of Repsol YPF have a duty of diligent administration and a duty to comply with duties imposed by law and Repsol YPF's by-laws, with fidelity to
the corporate interest of the Company. Likewise, directors have a duty of loyalty, and may not use their positions as directors to undertake transactions for their own benefit or for the benefit of
related parties, nor may they undertake for their own benefit or that of related parties transactions related to Repsol YPF's assets, if the directors became of such transaction while they were a
director and the investment or transaction

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was
offered to, or of interest to, Repsol YPF. Furthermore, under the Regulations applicable to the Board of Directors of Repsol YPF, directors are required to abstain from voting on a resolution if
they have a conflict of interest.

Each
director is obligated to communicate any interest he or she has in the share capital of any company with the same, analogous or complementary business activities as those that make
up the corporate purpose of Repsol YPF, as well as any positions he or she may have with any such company and any activities carried out individually, for his or her or another's account, that are
similar, analogous or complementary to the corporate purpose of Repsol YPF.

The
Board of Directors of Repsol YPF is, pursuant to its by-laws, composed of a minimum of 9 and a maximum of 16 directors. The general shareholders' meeting held on
April 4, 2003 determined that the Board of Directors would be composed of 14 members.

The
Regulations of the Board of Directors provide for, at least, three main types of Directors:



The
valid adoption of resolutions of the Board of Directors requires that the majority of the current directors be represented at a meeting, unless the meeting has not been duly
convened, in which case all Directors must be present to establish quorum.

The
Directors are obligated to notify Repsol YPF their respective interests that they have in the capital of another company with the same as, or analogous or complementary to, Repsol
YPF's activities, the roles and functions in such company carried out by such Directors, as well as any such same, analogous or complementary activities carried out by them for their own or another's
account.

The
Board of Directors has the power to approve any credit transaction. The issuance of debt securities requires, however, the approval of a general shareholders' meeting.

The
Board of Directors of Repsol YPF has made available, from the year 1995, a Regulation that regulates its operation and that of its Committees. This Regulation was subject to
modifications in 1997 and 2002 to gather the best practices in corporate governance, the principles and recommendations of the Olivencia Report, and the Code of Good Governance of the Spanish Market.
On March 26, 2003, the Board of Directors, following the guidelines and principles of the Aldama Report on Good Corporate Governance, approved the Regulations that govern the structure and
functions of the Board of Directors and its supervision and control. The existence of such Regulations is obligatory for all corporations listed on a Spanish stock exchange following the adoption of
Law 26/2003, of July 17, 2003.



Spanish
law requires any person or group that, as a result of an acquisition or transfer of shares of a company listed on a Spanish Stock Exchange, increases its ownership above 5% or
any multiple of 5%, or decreases its ownership below 5% or any multiple of 5% of the capital stock of the company, to report such acquisition or transfer to:



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The
ownership thresholds that trigger these reporting obligations are reduced to 1% for purchasers residing in designated tax havens or jurisdictions lacking a supervisory body of the
securities markets or, having such a supervisory body, if it refuses to exchange relevant information with the Spanish National Stock Market Commission. Furthermore, any person or group must similarly
report any acquisition or transfer, regardless of size, of equity securities of a company listed on a Spanish Stock Exchange if such person or group is a member of the Board of Directors of such
company.



Entering
into, extending or amending shareholder agreements regarding publicly traded business corporations, must be reported by the parties to the agreement to the company and to the
Spanish National Stock Exchange Commission, accompanied by a copy of the clauses of the document, and deposited in the Commercial Registry and published as a relevant event.

Shareholder
agreements are agreements whose objective is the exercise of the right to vote in General Meetings, or agreements that restrict or condition the free transferability of stock
or convertible or exchangeable obligations.

A
shareholder agreement shall have no effect whatsoever until such time as the aforementioned notifications, deposits and publication are made.

The
Spanish National Stock Exchange Commission may waive the requirement to report the agreement, deposit, and publish it when publishing the shareholder agreement could cause harm to
the company.



Law
62/2003, of December 30, amended the regime established by Law 5/1995 in relation to the transfer of the stock of specific companies, among them Repsol YPF and other companies
in the Repsol YPF group of companies. Pursuant to such Law, the direct or indirect acquisition, including through third parties, trustees or intermediaries, in a single act or in several successive
acts, of the stock of Repsol YPF or of other securities which might directly or indirectly give a right to subscribe to or acquire such stock, provided that the result thereof is control over at least
10% of the capital stock, must be reported to the Government subsequent to the realization thereof, and the Government may object to the transfer due to the existence of direct or indirect significant
risks or negative effects on the activities performed by the companies.

Acts
or transfers made without notification, or made against the opposition of the Government, shall be of no effect.

This
system is in effect for Repsol YPF through February 6, 2006.

Law
62/2003 has modified the so-called "energy golden share" established by Law 55/1999. Legal or physical persons, majority-owned or otherwise controlled by public entities
or administrations must notify the Spanish Government, upon execution, of any activity that results in the control or holding of 3% of the share capital or voting rights of companies that carry out
activities in the energy markets.

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Pursuant
to the Corporations Law, holders of ordinary shares and bonds convertible into ordinary shares have preemptive rights to subscribe for any new shares and bonds convertible into
shares issued by Repsol YPF. The preemptive rights of holders of ordinary shares may not be available under special circumstances if precluded by a resolution passed at a meeting of shareholders in
accordance with Article 159 of the Spanish corporations law.

Further,
the rights, in any event, will not be available in the event of an increase in capital:



The
rights are transferable, may be traded on the Automated Quotation System and may be of value to existing shareholders because new shares may be offered for subscription at prices
lower than prevailing market prices. Shares issuable upon exercise of rights must be registered under the Securities Act of 1933 in order to be offered to holders of Repsol YPF ADSs. If Repsol YPF
decided not to register the shares, the rights would not be distributed to holders of Repsol YPF ADSs. Under the deposit agreement, however, holders of ADSs are entitled to receive their proportionate
share of proceeds, if any, from the sale by The Bank of New York of any rights accruing to holders of Repsol YPF ADSs.



In
accordance with Article 117 of the Corporations Law, Repsol YPF's by-laws provide that shareholders in their capacity as shareholders may bring actions challenging
resolutions adopted at shareholders' meetings or Board of Directors' meetings only in Madrid, Spain. Only shareholders representing at least 5% of the issued and outstanding capital stock of Repsol
YPF may challenge a resolution of the Board of Directors. Under the by-laws, shareholders must submit disputes with Repsol YPF to arbitration unless such disputes challenge resolutions
adopted at a shareholders' meeting or at a Board of Directors' meeting, in which case such actions must be brought in a Madrid court.

Under
Spanish law, directors are liable to the company, the shareholders of the company and the creditors for acts and omissions contrary to Spanish law or the company's
by-laws or for failure to carry out the duties and obligations required by the role of directors, including if the agreement had been approved or ratified by the shareholders.

The
liability of the directors is joint and several, except to the extent any director can demonstrate that he or she did not participate in the adoption or execution of the agreement at
issue, was unaware of its existence, did all that was possible to mitigate any damages or expressly disagreed with the agreement or agreements.



The
annual general meeting of the shareholders of Repsol YPF is held in Madrid during the first six months of each year on a date fixed by the Board of Directors. Extraordinary meetings
may be called by the Board of Directors whenever deemed appropriate or at the request of shareholders representing at least 5% of Repsol YPF's share capital. Notices of all shareholders' meetings are
published in the Commercial Registry's Official Bulletin and in two Madrid area newspapers at least 15 days prior to the meeting.

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In
general, each share entitles the holder to one vote. However, article 27 of Repsol YPF's by-laws provides that no shareholder or group of companies may vote more
than 10% of Repsol YPF's capital stock at a general meeting of shareholders regardless of its individual or aggregate holding in Repsol YPF. To modify article 27 of the by-laws, a
special resolution approved by at least 75% of the shares entitled to vote present at the general shareholders' meeting is required. The same percentage vote is required to modify such supermajority
requirement.

Only
holders of 150 or more shares are entitled to attend a general meeting of shareholders. Holders of fewer than 150 shares may aggregate their Repsol YPF shares by proxy and select a
representative to attend a general meeting of shareholders. All holders may aggregate their shares for the election of directors.

Any
share may be voted by proxy. Proxies must be conferred in writing or by remote communication, provided the identity of the person so acting is duly verified and it is done entirely
in accordance with the legally prescribed procedures. Proxies may be given to natural persons or legal entities and are valid for a single shareholders' meeting. A proxy may be revoked by written
notice to Repsol YPF prior to the meeting or by attendance by the shareholder at the meeting.

Pursuant
to the Regulations that govern the general meetings, voting on the proposals included in the agenda may be delegated or exercised by a shareholder through the mail,
electronically, or by any other remote communication media, provided that the identity of the person casting the vote is duly verified. Shareholders casting remote votes will be counted as present for
the purposes of convening the
meeting. The means and procedures by which the exercise and delegation of votes cast remotely remain subject to regulatory development.

If
the directors or another person have made a public request for representation, the director who obtains it may not exercise the right to vote corresponding to the stock represented on
those points on the agenda of the day for which there is a conflict of interest (his appointment, ratification, removal, severance or resignation; exercise of corporate actions for damages against
him; approval of the company's transactions with the director; etc.).

Only
holders of shares registered at least five days prior to the day on which a shareholders' meeting is scheduled, in the manner provided in the notice for such meeting, may attend and
vote at such meeting. Subject to the above, The Bank of New York or its nominee will be entitled to vote the Repsol YPF shares represented by the ADSs. The deposit agreement provides that The Bank of
New York or its nominee will accept voting instructions from ADS holders and execute such instructions as permitted by law and by the terms governing the shares.

The
by-laws provide that, on the first call of an ordinary or extraordinary general shareholders' meeting, the presence in person or by proxy of shareholders representing at
least 25% of the voting capital of Repsol YPF will constitute a quorum. If on the first call a quorum is not present, then the meeting can be reconvened by a second call at which time the shareholders
present will constitute a quorum, irrespective of the voting capital represented at such meeting. However, a resolution in a shareholders' meeting seeking to modify the by-laws of Repsol
YPF, change its share capital or corporate purpose, issue bonds, merge, dissolve, spin-off assets, issue new shares and bonds convertible into shares with exclusion of preemptive rights or
transform its legal form requires on first call the presence in person or by proxy of shareholders representing at least 50% of the voting capital of Repsol YPF, and on a second call the presence in
person or by proxy of shareholders representing at least 25% of the voting capital. If on this second call the shareholders represent less than 50% of the voting capital, such resolutions may only be
passed upon the vote of shareholders representing two-thirds of the capital present or represented at such meeting.

Resolutions
in all other cases are passed by a majority of the votes cast. Resolutions passed by a shareholders' meeting are binding upon all shareholders. In limited circumstances, such
as when a

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company's
corporate purpose is changed or it is transformed into a different type of legal entity, Spanish law gives dissenting or absent shareholders the right to have their shares redeemed by Repsol
YPF at prices determined in accordance with established formulas.

The
Regulations that govern the general meetings of shareholders were approved at the general shareholders' meeting held on April 4, 2003 The Regulations have been amended at the
general
shareholders' meeting held on March 31, 2004, in order to incorporate into the Regulations the new requirements introduced by Law 26/2003, of July 17, 2003, regarding "remote voting" and
shareholder information rights. The existence of such Regulations is obligatory for all corporations listed on a Spanish stock exchange following the adoption of Law 26/2003, of July 17, 2003.



Law
62/2003, of December 30, amended the regime established by Law 5/1995 in relation to the taking of certain decisions by certain companies, among them Repsol YPF and other
companies in the Repsol YPF group of companies. Pursuant to such Law, the Government must be notified after the following decisions are taken:



The
competent administrative body may object to the decision or transaction noticed as a result of the existence of direct or indirect significant risks or negative effects on the
activities performed by the companies.

This
system is in effect for Repsol YPF until February 6, 2006.



The
Spanish Stock Exchanges and securities markets are open to foreign investors. Historically, any foreign investment which increases foreign shareholding in a Spanish company to more
than 50% of the outstanding share capital or any purchase of shares by a foreign entity above the 50% limitation has required the prior consent of the Ministry of Economy, which has generally been
granted.

Pursuant
to Law 18/1992, of July 1, and Royal Decree 664/1999, of April 23, foreign investors may freely invest in shares of Spanish companies and need only notify of their
investment the Spanish Ministry of Economy after they have made their investment and for administrative, economic and statistical purposes, for the purposes of its registration with the Spanish
Registry of Foreign Investments. The shares underlying the ADSs are so registered.

Law
19/2003, of July 4, which has as its purpose the establishment of a regulatory regime relating to capital flows to and from legal or natural persons abroad and the prevention
of money laundering, generally provides for the liberalization of the regulatory environment with respect to acts, businesses, transactions and other operations between Spanish residents and
non-residents of Spain in respect of which charges or payments abroad will occur, as well as money transfers, variations in accounts, or financial debit or credits abroad. These operations
only must be reported to the Ministry of the Economy and the Bank of Spain for informational and statistical purposes.

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The most important developments resulting from Law 19/2003 are the obligations on financial intermediaries to provide to the Spanish Ministry of Economy and Finance and the Bank of Spain
information corresponding to client transactions. The form and timeframe for compliance with this obligation is pending regulatory development.

In
addition, if a foreign investor is an individual or entity resident in designated tax havens, this investor is also required to file a prior notification of investment with the
Spanish Ministry of Economy and Finance. This prior notification is not necessary when the investment is made in transferable securities or when the foreign holding in the Spanish target company does
not exceed 50%.

Foreign
investments in activities including telecommunications, gambling, mining, radio, television, air transportation, manufacturing and sales of weapons and explosives for civil use
and national defense are subject to specific requirements. These restrictions do not apply to investments made by EU residents, except for investments by EU residents in activities relating to the
Spanish defense sector and the manufacturing and sales of weapons and explosives for non-military use.



Starting
on February 9, 2004, it is mandatory for publicly-traded corporations in Spain to have a website so that stockholders may exercise their right to information, and to
disseminate relevant information.

According
to applicable law, the minimum content that such website must include is the following: the by-laws, the code of conduct for the Board of Directors, the regulations
for the committees of the Board of Directors, the regulations for the annual general shareholders' meeting, the regulations for the Disclosure Committee, the financial statements, the annual report,
the report on corporate governance, the report on the environment, the code of conduct for stock market activity, and the code of ethics, among others. Of particular note are maintenance on the
website of the procedures relating to the grant of proxies for the General Meeting of Stockholders and the exercise of the right to vote remotely and publication of relevant events.

The
aforementioned documents are also available at the registered office of Repsol YPF, Paseo de la Castellana, 278, attention of the Office of Investor Relations, whose telephone number
is +34 900 100 100.

Repsol
YPF has its own website,www.repsolypf.com, the content of which has been adapted to comply with the provisions of the
aforementioned regulations.



Repsol YPF's dividend policy will be guided by the principle of ensuring remuneration for our shareholders, even in low-cycle scenarios. The plan is
to continue increasing dividend payout significantly, in a stable manner, in the long term allocating 40% of the Company's net income in mid-cycle conditions.

The
general shareholder's meeting held on March 31, 2004, approved the payment of a total dividend with respect to fiscal year 2003 of €0.40 per share. This
dividend represents a 29% increase from the 2002 dividend and a 24.28% pay-out ratio (portion of net income distributed as dividend), in line with Repsol YPF's prudent policy, which,
despite the recent improvement in the outlook for Argentina, aims to strengthen Repsol YPF's financial structure.

Pursuant
to Spanish law and Repsol YPF's by-laws, dividends may only be paid out of profits or distributable reserves if Repsol YPF's net worth is not, and as a result of
such distribution would not be, less than its capital stock. While Repsol YPF has paid and expects to pay dividends each year, the payment of dividends will depend upon Repsol YPF's earnings,
financial condition and other factors.

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The
following table sets forth the interim, final and total dividends paid per share in respect of each year indicated and translated into U.S. dollars per ADS. All per ADS and per share
data presented below have been adjusted to reflect the three-for-one stock split of shares of Repsol YPF which became effective April 19, 1999. Unless otherwise
indicated, U.S. dollar amounts shown are calculated based on the noon buying rates for the euro in effect at the respective payment dates.

Year Ended December 31,

Interim

Final

Total

Interim

Final

Total(euros per share)

(dollars per ADS)1999

0.16

0.26

0.42

0.16

0.24

0.412000

0.19

0.31

0.50

0.18

0.26

0.452001

0.21



0.21

0.19



0.192002

0.15

0.16

0.31

0.16

0.17

0.332003

0.20

0.20

0.40

0.25

0.25
(1)
0.50
(1)


---

Dividends
payable by Repsol YPF to non-residents of Spain are subject to a Spanish withholding tax at the rate of 15%. However, pursuant to a treaty between Spain and the
United States and to Spanish legislation currently in force, holders of ADSs or shares meeting various requirements may benefit from withholding tax at a reduced rate of 15%. See Section 8.3
"Taxation" below for more information about the reduced rate of withholding tax in Spain.



The
following is a discussion of the material Spanish and U.S. federal income tax consequences of purchasing, owning and disposing of ordinary shares or ADSs, but it does not purport to
be a comprehensive description of all of the tax considerations that may be relevant to a particular person's decision to acquire such securities. The discussion applies only if you hold ordinary
shares or ADSs as capital assets for U.S. federal income tax purposes and it does not describe all of the tax consequences that may be relevant to holders subject to special rules, such as:



The
discussion regarding Spanish tax laws below is based on interpretations of those laws in force as of the date of this annual report. The discussion of U.S. federal income tax
consequences is based

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on
the Internal Revenue Code of 1986, as amended, administrative pronouncements, judicial decision and final, temporary and proposed Treasury regulations, all as currently in effect. These Spanish and
U.S. laws are subject to change, possibly on a retroactive basis. The discussion of the Spanish and U.S. federal tax consequences is also based in part on representations by the Depositary and assumes
that each obligation under the Deposit Agreement and any related agreement will be performed in accordance with its terms. Please consult your own tax advisers concerning the Spanish, U.S. federal,
state, local and foreign tax consequences of purchasing, owning and disposing of ordinary shares or ADSs in your particular circumstances.

As
used herein, the term "United States Holder" means a beneficial owner of ordinary shares or ADSs who is, for U.S. federal tax purposes:



As
used herein, the term "United States Resident" means a United States Holder who is a resident of the United States for the purposes of the Convention between the United States and the
Kingdom of Spain for the Avoidance of Double Taxation and the Prevention of Fiscal Evasion with Respect to Taxes on Income together with a related Protocol.

In
general, if you hold ADSs, you will be treated as the owner of the underlying shares represented by those ADSs for purposes of the Treaty and for U.S. federal income tax purposes.

Taxation of Dividends.Under Spanish law, dividends paid by Repsol YPF to a holder of ordinary shares or ADSs who is not
resident in Spain for tax purposes and does not operate through a permanent establishment in Spain, are subject to Spanish Non-Resident Income Tax, withheld at source at a 15% rate.

According
to the provisions of the Treaty, dividends paid by a Spanish entity to a United States Resident, within the terms of such Treaty, may be taxed in Spain at a maximum reduced
rate of 15%. Thus, for dividends paid since January 1, 2003, because the ordinary withholding rate is equal to the Treaty-reduced rate, no special procedure for the application of reduced rates
or for receiving a refund is required when the holder is a United States Resident. Holders who are residents of another country, should consult their own tax advisors regarding the availability of
reduced rates and refunds.

Taxation of Rights.Distribution of preemptive rights to subscribe for new shares made with respect to your shares in Repsol
YPF will not be treated as income under Spanish law and, therefore, will not be subject to Spanish Non Resident Income Tax. The exercise of such preemptive rights is not considered a taxable event
under Spanish law and thus is not subject to Spanish tax. Capital gains derived from the disposition of preemptive rights obtained by United States Residents are generally not taxed in Spain provided
that certain conditions are met (see "Spanish TaxationTaxation of Capital Gains" below).

Taxation of Capital Gains.Under Spanish law, any capital gains realized from the sale of securities issued by persons
residing in Spain for tax purposes are considered to be Spanish source income and, therefore, are taxable in Spain. For Spanish tax purposes, income obtained by you, if you are a United States
Resident, from the sale of Repsol YPF ADSs or ordinary shares will be treated as capital gains. Spanish Non-Resident Income Tax is currently levied at a 35% tax rate on capital gains
realized by persons who (i) are non residents of Spain for tax purposes; (ii) are not entitled to the

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benefit
of any applicable treaty; and (iii) do not operate through a fixed base or a permanent establishment in Spain.

Notwithstanding
the above, capital gains derived from the transfer of shares in an official Spanish secondary stock market by any holder who is resident in a country that has entered
into a treaty with an "exchange of information" clause (the Treaty contains currently such a clause), will be exempt from taxation in Spain. Additionally, capital gains realized by
non-residents of Spain who are entitled to the benefit of an applicable treaty will, generally, not be taxed in Spain (since most tax treaties provide for taxation only in the taxpayer's
country of residence). If you are a United States Resident, by virtue of the Treaty, capital gains arising from the disposition of ordinary shares or ADSs generally will not be taxed in Spain,
provided that you have not maintained a direct or indirect holding of at least 25% in the capital of Repsol YPF during the twelve months preceding the disposition of the stock. You will be required to
establish that you are entitled to this exemption by providing to the relevant Spanish tax authorities an Internal Revenue Service certificate of residence in the United States, together with the
corresponding Spanish tax form.

Spanish Wealth Tax.If you do not reside in Spain and you hold shares located in Spain, you are subject to Spanish Wealth Tax
(Spanish Law 19/1991), which imposes a tax on property located in Spain on the last day of any year. It is possible that the Spanish tax authorities may contend that all shares of Spanish corporations
and all ADSs representing such shares are located in Spain for Spanish tax purposes. If such a view were to prevail, and you are a non-resident of Spain who held ADSs of Repsol YPF or
ordinary shares on the last day of any year, you would be subject to the Spanish Wealth Tax for such year at marginal rates varying between 0.2% and 2.5% of the average market value of such ordinary
shares or ADSs during the last quarter of such year. United States Residents should consult their tax advisors with respect to the applicability of Spanish Wealth Tax.

Spanish Inheritance and Gift Taxes.Transfers of Repsol YPF shares or ADSs upon death or by gift are subject to Spanish
inheritance and gift taxes (Spanish Law 29/1987), if the transferee is a resident of Spain for tax purposes, or if Repsol YPF shares or ADSs are located in Spain, regardless of the residence of the
beneficiary. In this regard, the Spanish tax authorities may argue that all shares of Spanish corporations and all ADSs representing such shares are located in Spain for Spanish tax purposes. The
applicable tax rate, after applying all relevant factors, ranges between 7.65% and 81.6% for individuals.

Alternatively,
gifts granted to corporations non-resident in Spain are subject to Spanish Non-Resident Income Tax at a 35% tax rate on the fair market value of
the shares as a capital gain. Hence, if the donor is a United States resident corporation, the exclusions available under the Treaty described in the section "Taxation of Capital Gains"
above will be applicable.

Spanish Transfer Tax.Transfers of Repsol YPF ordinary shares or ADSs will be exempt from Transfer Tax
(Impuesto sobre Transmisiones Patrimoniales) or Value-Added Tax. Additionally, no Stamp Duty will be levied on such transfers.



Taxation of Distributions.Distributions paid on ADSs or ordinary shares, to the extent paid out of current or accumulated earningsand profits, other than certain pro rata distributions of common shares, as determined under United States federal income tax principles, will
be treated as a dividend. The amount of this dividend will include any amounts withheld by Repsol YPF or its paying agent in respect of Spanish taxes. Under recently enacted legislation, dividends
received by non-corporate United States Holders on shares or ADSs may be subject to U.S. federal income tax at lower rates (generally 15%) than other types of ordinary income if certain
conditions are met. United States Holders should consult their own tax advisers regarding the implications of this legislation in their particular circumstances. The amount of the dividend will be
treated as foreign source dividend income

165

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to
you and will not be eligible for the dividends received deduction generally allowed to U.S. corporations under the Code.

Dividends
paid in euro will be included in your income in a U.S. dollar amount calculated by reference to the exchange rate in effect on the date of your or, in the case of ADSs, the
depositary's receipt of the dividend, regardless of whether the payment is in fact converted into U.S. dollars. If the dividend is converted into U.S. dollars on the date of receipt, you generally
should not be required to recognize foreign currency gain or loss in respect of the dividend income. You may have foreign currency gain or loss if you do not convert the amount of such dividend into
U.S. dollars on the date of its receipt. You should consult your own tax advisers regarding any special reporting requirements that may be imposed if the amount of any loss exceeds certain thresholds.

Spanish
taxes withheld from cash dividends on ordinary shares or ADSs will be creditable against your U.S. federal income tax liability, subject to applicable limitations that may vary
depending upon your circumstances. Instead of claiming a credit, you may, at your election, deduct such Spanish taxes in computing your taxable income, subject to generally applicable limitations
under U.S. law.

The
U.S. Treasury has expressed concerns that parties to whom ADSs are pre-released may be taking actions that are inconsistent with the claiming of foreign tax credits for
United States Holders of ADSs. Such actions would also be inconsistent with claiming the 15% rate applicable to certain dividends received by non-corporate holders. Accordingly, the
creditability of Spanish taxes and the availability of the 15% rate for dividends received by certain non-corporate holders described above could be affected by actions taken by parties to
whom ADSs are pre-released. You should consult your own tax advisers to determine whether you are subject to any special rules which affect to your ability to make effective use of foreign
tax credits or which limit the availability of the 15% rate for dividends.

Sale and Other Disposition of Ordinary Shares or ADSs.For U.S. federal income tax purposes, gain or loss you realize on the
sale or other disposition of ordinary shares or ADSs will be capital gain or loss, and will be long-term capital gain or loss if you held the ordinary shares or ADSs for more than one
year. The amount of your gain or loss will be equal to the difference between your tax
basis in the ordinary shares or ADSs disposed of and the amount realized on the disposition. Such gain or loss will generally be U.S. source gain or loss for foreign tax credit purposes.

Passive Foreign Investment Company Rules.We believe that we were not a "passive foreign investment company" ("PFIC") for
U.S. federal income tax purposes for the 2003 taxable year. However, since PFIC status depends upon the composition of our income and assets and the market value of our assets (including, among
others, equity investments in non-controlled entities) from time to time and since the characterization of certain income and assets as uncertain under the PFIC rules, there can be no
assurance that we will not be considered a PFIC for any taxable year. If we were treated as a PFIC for any taxable year during which you held ordinary shares or ADSs, certain adverse consequences
could apply to you.

If
we are treated as a PFIC for any taxable year, gain recognized by you on the sale or other disposition of ordinary shares or ADSs would be allocated ratably over your holding period
for such securities. The amounts allocated to the taxable year of the sale or other disposition and to any year before we became a PFIC would be taxed as ordinary income. The amount allocated to each
other taxable year would be subject to tax at the highest rate in effect for individuals or corporations, as appropriate, and an interest charge would be imposed on the tax liability attributable to
such allocated amounts. Further, any distribution in respect of ordinary shares or ADSs in excess of 125% of the average of the annual distributions on such securities received by you during the
preceding three years or your holding period, whichever is shorter, would be subject to taxation as described above. Certain elections (including a mark to mark election) may be available to you that
may ameliorate the adverse consequences resulting from PFIC status.

166

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Information Reporting and Backup Withholding.Payment of dividends and sales proceeds that are made within the United States
or through certain U.S.-related financial intermediaries generally are subject to information reporting and to backup withholding unless you establish that you are a corporation or other exempt
recipient. Such payments may also be exempt from backup withholding if you provide a correct taxpayer identification number and certify that no loss of exemption from backup withholding has occurred.

The
amount of any backup withholding from a payment to you will be allowed as a credit against your United States federal income tax liability and may entitle you to a refund, provided
that the required information is furnished to the Internal Revenue Service.



Repsol YPF is subject to the information requirements of the Exchange Act, except that as a foreign issuer, Repsol YPF is not subject to the proxy rules or the
short-swing profit disclosure rules of the Exchange Act. In accordance with these statutory requirements, Repsol YPF files or furnishes reports and other information with the SEC. Reports and other
information filed or furnished by Repsol YPF with the SEC may be inspected and copied at the public reference facilities maintained by the SEC at Room 1024, 450 Fifth Street, N.W., Washington, D.C.
20549, and at the SEC's Regional Office at Northwestern Atrium Center, 500 West Madison Street, Suite 1400, Chicago, Illinois 60661-2511. Copies of such material may be obtained by mail
from the Public Reference Section of the SEC, 450 Fifth Street, N.W., Washington, D.C. 20549, at prescribed rates. You may obtain information on the operation of the Public Reference Section by
calling the SEC at 1-800-732-0330. The SEC maintains a World Wide Web site on the Internet at http://www.sec.gov that contains reports and information statements
and other information regarding us. Such reports and other information statements and other information about us can be downloaded from the SEC's website and may also be inspected and copied at the
offices of the New York Stock Exchange, 11 Wall Street, New York, New York 10005, on which Repsol YPF's American Depositary Shares are listed.

In
addition, certain codes of conduct and other internal regulations, as well as certain corporate governance regulations applicable to and recommendations made for Spanish-listed
companies are available on the Repsol YPF web-pagewww.repsolypf.com(which does not form part of this annual report)



On
June 20, 2003, Repsol YPF and La Caixa further amended their Shareholders' Agreement with respect to Gas Natural, dated January 11, 2000, through a Second Addendum to
the Novation Agreement of May 16, 2002 (as first amended by an Addendum dated December 16, 2002).

The
most significant aspects of these agreements with La Caixa are the following:



167

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9. Quantitative and Qualitative Disclosure About Market Risk

As used throughout this Section 9, "Libor" refers, unless otherwise indicated, to the three-month London Interbank Offered Rate, "Euribor" refers, unless
otherwise indicated, to the three-month Euro Interbank Offered Rate, "6m Libor" refers to the six-month Libor Interbank Offered Rate and "6m Euribor" refers to the six-month
Euro Interbank Offered Rate. As used throughout this Section 9, "b.p" refers to basis points, which equal one-hundredth of a percent (1/100 of 1%).



In the refining business, Repsol YPF is exposed to various market risks relating to the volatility of crude oil and crude oil product prices. To manage these
risks, Repsol YPF engages in hedging transactions involving futures and other derivative instruments. Repsol YPF purchases and sells futures contracts (mainly on the International Petroleum Exchange
and the New York Mercantile Exchange) in order to reduce its exposure to the effects of market price changes on its crude oil and products inventories. From time to time, Repsol YPF also purchases and
sells over-the-counter derivative instruments, principally forwards, swaps and options, with financial institutions whose credit is rated "A" or better. Such instruments are
used only for hedging market risks arising from Repsol YPF's industrial and commercial activities.

The
following tables set forth certain information with respect to oil price-sensitive instruments issued or held by Repsol YPF at December 31, 2003. Repsol YPF had no material
exposure to such instruments (other than the forward contracts discussed above) at December 31, 2001, 2002 and 2003. Repsol YPF had no material exposure to crude oil price-sensitive instruments
entered into for trading purposes in 2001, 2002 and 2003.

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Non-trading portfolio

|                  |         |  |       |  |       | Expected maturity date |            |  |  |  | 
|----------------- | ------- |  | ----- |  | ----- | ---------------------- | ---------- |  |  |  | 
|
|
|
|Buy contracts     |         |  |       |  |       |                        |            |  |  |  | 
|Short term:       |         |  |       |  |       |                        |            |  |  |  | 
|                  | WTI     |  | 4,223 |  | 31.93 |                        | 134,846.23 |  |  |  | 
|Short-term:       |         |  |       |  |       |                        |            |  |  |  | 
|                  | Gas oil |  |       |  |       |                        |            |  |  |  | 
|Sell contracts    |         |  |       |  |       |                        |            |  |  |  | 
|Short term:       |         |  |       |  |       |                        |            |  |  |  | 
|                  | WTI     |  | 3,006 |  | 32.58 |                        | 97,933.16  |  |  |  | 
|Short-term:       |         |  |       |  |       |                        |            |  |  |  | 
|                  | Gas oil |  |       |  |       |                        |            |  |  |  | 
|Swap contracts(1) |         |  |       |  |       |                        |            |  |  |  | 
|Short-term:       |         |  |       |  |       |                        |            |  |  |  | 
|                  | WTI     |  | 790   |  | 5.24  |                        | 4,139.07   |  |  |  | 
|                  | Dubai   |  | 400   |  | 14.41 |                        | 5,763.80   |  |  |  | 

|                  |             |         |  |     |  | Expected maturity date |  |           |  | 
|----------------- | ----------- | ------- |  | --- |  | ---------------------- |  | --------- |  | 
|
|
|
|Swap contracts(1) |             |         |  |     |  |                        |  |           |  | 
|                  | Short term: |         |  |     |  |                        |  |           |  | 
|                  |             | Gas oil |  | 15  |  | 22.50                  |  | 337.5     |  | 
|                  |             | Propano |  | 12  |  | 327.58                 |  | 3,931.9   |  | 
|                  |             | Nafta   |  | 639 |  | 282.4                  |  | 180,478.6 |  | 

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Additionally,
Repsol YPF has hedged, through Gas Natural, the sale price of gas for a volume of 2,088 GWh with maturities from 2004 to 2006. Repsol YPF has also hedged the purchase price
of natural gas for €105 million, and the hedges mature in the first half of 2004.

|                  |                   |  |       |  |        | Expected maturity date |        |  |     |  |  
|----------------- | ----------------- |  | ----- |  | ------ | ---------------------- | ------ |  | --- |  | -
|
|
|
|Buy contracts     |                   |  |       |  |        |                        |        |  |     |  |  
|Short term:       |                   |  |       |  |        |                        |        |  |     |  |  
|                  | WTI               |  | 2,794 |  | 26.534 |                        | 73,707 |  | 430 |  | 
|Sell contracts    |                   |  |       |  |        |                        |        |  |     |  |  
|Short term:       |                   |  |       |  |        |                        |        |  |     |  |  
|                  | WTI               |  | 1,646 |  | 28.911 |                        | 47,587 |  |    |  | 
|Swap contracts(1) |                   |  |       |  |        |                        |        |  |     |  |  
|Short-term:       |                   |  |       |  |        |                        |        |  |     |  |  
|                  | WTI               |  | 2,592 |  | 17.675 |                        | 45,813 |  |    |  | 
|                  | Brent             |  | 950   |  | 26.2   |                        | 24,890 |  |    |  | 
|                  | Dubai             |  | 650   |  | 7.521  |                        | 4,889  |  |    |  | 
|                  | Unleaded Gasoline |  | 23    |  | 29.740 |                        | 678    |  |    |  | 
|                  | Gas oil           |  | 13    |  | 31.647 |                        | 399    |  |    |  | 
|                  | Fuel oil          |  | 322   |  | 25.002 |                        | 8,051  |  |    |  | 

|                  |         |  |         |  |         | Expected maturity date |        |  |   | 
|----------------- | ------- |  | ------- |  | ------- | ---------------------- | ------ |  | - | 
|
|
|
|Swap contracts(1) |         |  |         |  |         |                        |        |  |   | 
|Short-term:       |         |  |         |  |         |                        |        |  |   | 
|                  | Propane |  | 2,000   |  | 333.150 |                        | 666    |  |  | 
|                  | Naphtha |  | 282,927 |  | 237.557 |                        | 67,211 |  |  | 

---



At
December 31, 2003, Repsol YPF had crude oil price swap contracts on a total of 27.7 million barrels of crude oil under which Repsol YPF must deliver set amounts of crude
oil at fixed prices averaging $19.75 per barrel in exchange for the same quantities of crude oil at market prices, according to the following schedule:

|                                         |  | 2004  |  | 2005  |  | 2006  |  | 2007  |  | 2008  |  | Total |  | Fair Value
|---------------------------------------- |  | ----- |  | ----- |  | ----- |  | ----- |  | ----- |  | ----- |  | ----------
|Volume of contract (millions of barrels) |  | 5.8   |  | 5.8   |  | 5.8   |  | 5.8   |  | 4.5   |  | 27.7  |  |           
|Price of contract (US$ per barrel)       |  | 19.62 |  | 19.62 |  | 19.62 |  | 19.62 |  | 20.22 |  | 19.75 |  |           
|Amount of contract (millions of US$)     |  | 114   |  | 114   |  | 114   |  | 114   |  | 91    |  | 547   |  | 193.35    

These
crude oil price swaps were entered in connection with the forward oil sale agreements described in Section 3.8.1.2 "Operating and Financial Review and
ProspectsLiquidity and Capital ResourcesTransactions With Unconsolidated Special Purpose Entities."

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Repsol YPF's results of operations are exposed to foreign exchange rate movements because it publishes its financial statements in euros while a substantial part
of its revenues and certain of its expenses are denominated in or indexed to dollars. Approximately 34.21% of Repsol YPF's total 2003 sales were made outside the European Union. The billing currency
of products sold outside the European Union is primarily the U.S. dollar. Repsol YPF is also exposed, to a lesser extent, to the Argentine peso. See Section 3.2.3.1 "Operating and Financial
Review and ProspectsFactors Affecting Repsol YPF's Consolidated Results of OperationsCritical Accounting Policies."

Currency
exposure also arises from some domestic sales. Domestic sales of bottled and pipeline-delivered LPG and natural gas are subject in most cases to price ceilings established by
the Spanish government. See Section 2.3.1 "Information on Repsol YPFRegulation of the Petroleum IndustrySpain." The Spanish government determines these prices on a
"cost plus" basis. As part of the price formula, raw material costs take into account among other components, the euro/U.S. dollar exchange rate, which is reflected to some extent in the selling
price. Petroleum products are sold in Spain at market prices. These prices reflect to some extent the international import parity prices which are denominated in U.S. dollars.

Repsol
YPF's policy is to fund its activities in the same functional currency as its foreign investments, although certain of our peso functional currency investments have been financed
with U.S. dollar indebtedness. See Section 3.2.3.1 "Operating and Financial Review and ProspectsFactors Affecting Repsol YPF's Consolidated Results of
OperationsCritical Accounting Policies." At December 31, 2003, 117.37% of consolidated net debt of Repsol YPF was denominated in foreign currencies, mainly in U.S. dollars, either
directly or through foreign exchange forward contracts.
To implement this policy, the desired currency of funding is obtained either directly from the capital markets or indirectly through foreign exchange forward contracts coupled with funding in other
currencies. Repsol YPF does not use foreign exchange forward contracts to hedge anticipated transactions.

The
tables below set forth certain information with respect to exchange rate sensitive instruments issued or held by Repsol YPF at December 31, 2003 and 2002. Repsol YPF had no
material exchange rate risk arising from trading instruments at December 31, 2003.

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Non-trading portfolio

At December 31, 2003 and 2002, Repsol YPF was party to foreign currency forward agreements as detailed below.

|         |             | Expected maturity date            |  |          |  |      | 
|-------- | ----------- | --------------------------------- |  | -------- |  | ---- | 
|
|
|Forwards |             |                                   |  |          |  |      | 
|         | Euro/USD(2) |                                   |  |          |  |      | 
|         |             | Contract Amount                   |  | 722.18   |  |     | 
|         |             | Average contractual Exchange rate |  | 1.22     |  |     | 
|         | USD/Euro(2) |                                   |  |          |  |      | 
|         |             | Contract Amount                   |  | 1,069.58 |  |     | 
|         |             | Average contractual Exchange rate |  | 1.23     |  |     | 
|         | GBP/USD(2)  |                                   |  |          |  |      | 
|         |             | Contract Amount                   |  | 0.60     |  |     | 
|         |             | Average contractual Exchange rate |  | 1.71     |  |     | 
|         | USD/BRL(2)  |                                   |  |          |  |      | 
|         |             | Contract Amount                   |  | 5.00     |  |     | 
|         |             | Average contractual Exchange rate |  | 2.9869   |  |     | 
|         | USD/ARS(2)  |                                   |  |          |  |      | 
|         |             | Contract Amount                   |  | 5.00     |  |     | 
|         |             | Average contractual Exchange rate |  | 2.9975   |  |     | 
|         | USD/CLP(2)  |                                   |  |          |  |      | 
|         |             | Contract Amount                   |  | 16.65    |  |     | 
|         |             | Average contractual Exchange rate |  | 611.89   |  |     | 
|         | USD/CLP(2)  |                                   |  |          |  |      | 
|         |             | Contract Amount                   |  | 1.00     |  |     | 
|         |             | Average contractual Exchange rate |  | 599.8    |  |     | 
|         | USD/EUR(2)  |                                   |  |          |  |      | 
|         |             | Contract Amount                   |  | 128.44   |  |     | 
|         |             | Average contractual Exchange rate |  | 1.22     |  |     | 
|         | USD/EUR(2)  |                                   |  |          |  |      | 
|         |             | Contract Amount                   |  | 37.00    |  |     | 
|         |             | Average contractual Exchange rate |  | 1.2242   |  |     | 
|         | USD/EUR(2)  |                                   |  |          |  |      | 
|         |             | Contract Amount                   |  | 21.18    |  | 0.54 | 
|         |             | Average contractual Exchange rate |  | 1.224210 |  |     | 
|         | EUR/USD(2)  |                                   |  |          |  |      | 
|         |             | Contract Amount                   |  | 11.90    |  |     | 
|         |             | Average contractual Exchange rate |  | 1.22509  |  |     | 
|         | USD/EUR(2)  |                                   |  |          |  |      | 
|         |             | Contract Amount                   |  | 72.02    |  |     | 
|         |             | Average contractual Exchange rate |  | 1.224182 |  |     | 

---

172

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|         |             | Expected maturity date            |  |         |  |   | 
|-------- | ----------- | --------------------------------- |  | ------- |  | - | 
|
|
|Forwards |             |                                   |  |         |  |   | 
|         | USD/Euro(2) |                                   |  |         |  |   | 
|         |             | Contract Amount                   |  | 1,273.8 |  |  | 
|         |             | Average contractual Exchange rate |  | 0.984   |  |  | 
|         | GBP/USD(2)  |                                   |  |         |  |   | 
|         |             | Contract Amount                   |  | 0.6     |  |  | 
|         |             | Average contractual Exchange rate |  | 1.5416  |  |  | 

---



The
following tables set forth information with regard to financial debt and preferred shares denominated in euros and other currencies, detailed by currency, as of December 31,
2003 and 2002:

|                 |       | Expected maturity date |       |  |       | 
|---------------- | ----- | ---------------------- | ----- |  | ----- | 
|
|
|
|Financial debt   |       |                        |       |  |       | 
|                 | US$   |                        | 3,209 |  | 1,696 | 
|                 | Euros |                        | 1,051 |  | 249   | 
|                 | Other |                        | 110   |  | 45    | 
|Preferred shares |       |                        |       |  |       | 
|                 | US$   |                        |      |  |      | 
|                 | Euros |                        |      |  |      | 

---

|                 |       | Expected maturity date |         |  |         | 
|---------------- | ----- | ---------------------- | ------- |  | ------- | 
|
|
|
|Financial debt   |       |                        |         |  |         | 
|                 | US$   |                        | 1,397.7 |  | 459.7   | 
|                 | Euros |                        | 2,544.9 |  | 1,873.6 | 
|                 | Other |                        | 56.4    |  | 6.2     | 
|Preferred shares |       |                        |         |  |         | 
|                 | US$   |                        |        |  |        | 
|                 | Euros |                        |        |  |        | 

---



Repsol
YPF enters into cross-currency interest rate swap arrangements to hedge its assets and liabilities denominated in foreign currencies against foreign exchange fluctuations and to
effectively transform debt denominated in foreign currencies mainly into dollar-and euro-denominated debt. At

173

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December 31,
2003 and 2002, Repsol YPF was party to cross-currency interest rate swap agreements as detailed below.

|                     |                                | Expected maturity date |                   |   |                    |  |     
|-------------------- | ------------------------------ | ---------------------- | ----------------- | - | ------------------ |  | ----
|
|
|
|Variable to variable |                                |                        |                   |   |                    |  |     
|                     | Contract/notional amount (USD) |                        | 5.78              |   | 0.49               |  |    
|                     | Average pay rate (USD)         |                        | US Libor + spread |   | US. Libor + spread |  |    
|                     | Average receive rate (BRL)     |                        | CDI BRL           |   | CDI BRL            |  |    
|                     | Contract/notional amount (USD) |                        | 0.98              |   |                   |  |    
|                     | Average pay rate (USD)         |                        | US Libor + spread |   |                   |  |    
|                     | Average receive rate (BRL)     |                        | CDI BRL           |   |                   |  |    
|Fixed to fixed       |                                |                        |                   |   |                    |  |     
|                     | Contract/notional amount (EUR) |                        | 1,725             |   |                   |  | 750 
|                     | Average pay rate (USD)         |                        | 5.34              | % |                   |  | 6.35
|                     | Average receive rate (EUR)     |                        | 3.75              | % |                   |  | 5.75

---

|                     |                                | Expected maturity date |                    |  |                  |  
|-------------------- | ------------------------------ | ---------------------- | ------------------ |  | ---------------- | -
|
|
|
|Variable to variable |                                |                        |                    |  |                  |  
|                     | Contract notional amount (USD) |                        | 4.95               |  | 2.83             |  
|                     | Average pay rate (USD)         |                        | Libor+ 27.07%      |  | Libor+ 10.28%    |  
|                     | Average receive rate (BRL)     |                        | 107.21%×
CDI BRL   |  | 105.96%×
CDI BRL |  
|Variable to fixed    |                                |                        |                    |  |                  |  
|                     | Contract notional amount (EUR) |                        | 900                |  |                 |  
|                     | Average pay rate (USD)         |                        | 4.068%             |  |                 |  
|                     | Received rate (EUR)            |                        | Euribor +
100 b.p. |  |                 |  
|                     | Contract notional amount (EUR) |                        | 1,916              |  |                 |  
|                     | Average pay rate (USD)         |                        | 2.977%             |  |                 |  
|                     | Received rate (EUR)            |                        | Euribor            |  |                 |  
|Fixed to fixed       |                                |                        |                    |  |                  |  
|                     | Contract notional amount (EUR) |                        |                   |  | 1,725            |  
|                     | Average pay rate (USD)         |                        |                   |  | 5.341            | %
|                     | Average receive rate (EUR)     |                        |                   |  | 3.750            | %

---



Of total financial debt, which amounted to €10,823 million as of December 31, 2003, €4,537 million were fixed
interest rate instruments, the fair value of which fluctuates with variations in interest rates.

174

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The
following tables set forth information with regard to long-term fixed rate debt as of December 31, 2003 and 2002, detailed by currency and maturity date:

|                          |                       | Expected Maturity Date |       |   |      |  
|------------------------- | --------------------- | ---------------------- | ----- | - | ---- | -
|
|
|Long-Term Debt fixed rate |                       |                        |       |   |      |  
|                          | US Dollar             |                        | 1,326 |   | 660  |  
|                          | Average Interest Rate |                        | 7.39  | % | 6.57 | %
|                          | Euro                  |                        | 22    |   |     |  
|                          | Average Interest Rate |                        | 5.35  | % |     |  

---

|                          |           | Expected Maturity Date |       |      |       |     
|------------------------- | --------- | ---------------------- | ----- | ---- | ----- | ----
|
|
|
|Long-Term Debt fixed rate |           |                        |       |      |       |     
|                          | US Dollar |                        | 380   |      | 1,598 |     
|                          |           | Average Interest Rate  |       | 7.80 | %     | 7.37
|                          | Euro      |                        | 1,744 |      | 19    |     
|                          |           | Average Interest Rate  |       | 3.77 | %     | 5.35
|                          | Other     |                        | 1     |      |      |     
|                          |           | Average Interest Rate  |       | 0.00 | %     |    

---



At
December 31, 2003 and 2002, Repsol YPF had interest rate swap arrangements according to the following schedule:

|                     |                          | Expected maturity date |             |  |   |  |  
|-------------------- | ------------------------ | ---------------------- | ----------- |  | - |  | -
|
|
|
|Variable to variable |                          |                        |             |  |   |  |  
|                     | Contract Amount (EUR)    |                        |            |  |  |  | 
|                     | Average pay rate         |                        |            |  |  |  | 
|                     | Average receive rate     |                        |            |  |  |  | 
|Variable to fixed    |                          |                        |             |  |   |  |  
|                     | Contract Amount (MEX)    |                        | 19.17       |  |  |  | 
|                     | Average pay rate         |                        | 6.9% - 8.8% |  |  |  | 
|                     | Average receive rate     |                        | MXN-TIIE    |  |  |  | 
|                     | Contract Amount (EUR)    |                        |            |  |  |  | 
|                     | Average pay rate         |                        |            |  |  |  | 
|                     | Average receive rate     |                        |            |  |  |  | 
|                     | Contract Amount (EUR)(2) |                        |            |  |  |  | 
|                     | Average pay rate         |                        |            |  |  |  | 
|                     | Average received rate    |                        |            |  |  |  | 
|                     |                          |                        |             |  |   |  |  

175

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| | Contract Amount(USD) |  |  |  |  |  |  |  |  |  |  |  | 4.00          |  | 4.00  |  | (0.25 | )
| | -------------------- |  | - |  | - |  | - |  | - |  | - |  | ------------- |  | ----- |  | ----- | -
| | Average pay rate     |  |  |  |  |  |  |  |  |  |  |  | 5.25%         |  |       |  |       |  
| | Average receive rate |  |  |  |  |  |  |  |  |  |  |  | 3m Libor      |  |       |  |       |  
| | Contract Amount(USD) |  |  |  |  |  |  |  |  |  |  |  | 4.00          |  | 4.00  |  | (0.24 | )
| | Average pay rate     |  |  |  |  |  |  |  |  |  |  |  | 5.07%         |  |       |  |       |  
| | Average receive rate |  |  |  |  |  |  |  |  |  |  |  | 3m Libor      |  |       |  |       |  
| | Contract Amount(USD) |  |  |  |  |  |  |  |  |  |  |  | 48.83         |  | 48.83 |  | 0.08  |  
| | Average pay rate     |  |  |  |  |  |  |  |  |  |  |  | 6.9% - 6.385% |  |       |  |       |  
| | Average receive rate |  |  |  |  |  |  |  |  |  |  |  | USD
Libor     |  |       |  |       |  

---

|                     |                                | Expected maturity date |          |  |   |  |  
|-------------------- | ------------------------------ | ---------------------- | -------- |  | - |  | -
|
|
|
|Variable to fixed    |                                |                        |          |  |   |  |  
|                     | Contract notional amount (EUR) |                        | 24.04    |  |  |  | 
|                     | Average pay rate               |                        | Euribor  |  |  |  | 
|                     | Received rate                  |                        | 3.6025%  |  |  |  | 
|                     | Contract notional amount (USD) |                        |         |  |  |  | 
|                     | Average pay rate               |                        |         |  |  |  | 
|                     | Received rate                  |                        |         |  |  |  | 
|                     | Contract notional amount (USD) |                        |         |  |  |  | 
|                     | Average pay rate               |                        |         |  |  |  | 
|                     | Received rate                  |                        |         |  |  |  | 
|                     | Contract notional amount (EUR) |                        |         |  |  |  | 
|                     | Average pay rate               |                        |         |  |  |  | 
|                     | Received rate                  |                        |         |  |  |  | 
|                     | Contract notional amount (MEX) |                        | 9.57     |  |  |  | 
|                     | Average pay rate               |                        | 8.39%    |  |  |  | 
|                     | Received rate                  |                        | MXT-TIIE |  |  |  | 
|Variable to variable |                                |                        |          |  |   |  |  
|                     | Contract notional amount (EUR) |                        |         |  |  |  | 
|                     | Average pay rate               |                        |         |  |  |  | 
|                     | Received rate                  |                        |         |  |  |  | 

---



At
December 31, 2003, Repsol YPF was not party to any average interest rate forward arrangements.

176

---







In
May 2001, RIC issued €1,000 million of preference shares with a variable non-cumulative dividend equal to three-month Euribor, with a minimum
and maximum equivalent annual rate of 4% and 7%, respectively, during the first ten years and three-month Euribor plus 3.50% thereafter. RIC may redeem in whole or in part these preference shares, at
any time after May 11, 2011.

In
December 2001, RIC, issued an additional €2,000 million of preference shares with a variable non-cumulative dividend equal to three-month
Euribor, with a minimum and maximum equivalent annual rate of 4% and 7%, respectively, during the first ten years and three-month Euribor plus 3.50% thereafter. RIC may redeem in whole or in part
these preference shares at any time after December 21, 2011.

In
May 2001, and in connection with the preference shares offering during that month, Repsol YPF purchased and sold options on interest rates on a notional amount of
€1,000 million, as follows:



As
a result of these purchases and sales of options on interest rates, the interest rate payable by Repsol YPF on this issue of preference shares for the first ten years will be a
floating rate equal to flat three-month Euribor.

Effective
June 30, 2002, and in connection with its December 2001 issue of €2,000 million of preference shares, Repsol YPF purchased and sold options
on interest rates on a notional amount of €1,000 million, as follows:



As
a result of these purchases and sales of interest rate options, the interest rate payable by Repsol YPF on €1,000 million of the
€2,000 million preference shares issued in December 2001 will be a floating rate equal to the three-month Euribor for the period from September 30, 2002 to
December 31, 2011. Additionally, Repsol YPF has a swap denominated in euros with a notional amount of €674 million, an average pay rate of 6.75% and an average receive
rate of three-month Euribor. Repsol YPF uses this swap as an instrument to hedge cash flows generated by the issue of the above euro-denominated preference shares. See Section 9.3.1
"Interest rate Swaps."

In
addition, at December 31, 2003, Repsol YPF held the following interest rate options on a notional amount of US$77.4 million:



177

---





The
following tables set forth certain information with respect to interest rate sensitive instruments issued or held by Repsol YPF at December 31, 2003 and 2002. All such
instruments are accounted for as non-trading instruments. Repsol YPF had no material interest rate risk arising from trading instruments at December 31, 2003 and December 31,
2002.

Non-trading Portfolio

|                                           |                                                    | Expected Maturity Date |   |  |   |  |      
|------------------------------------------ | -------------------------------------------------- | ---------------------- | - |  | - |  | -----
|
|
|
|Interest rate option RIC ("Collar")        |                                                    |                        |   |  |   |  |      
|                                           | Cap option(1)                                      |                        |   |  |   |  |      
|                                           | Repsol YPF would receive Cap rate 7%               |                        |   |  |   |  |      
|                                           | Repsol YPF would pay floating rate 3m EURIBOR      |                        |   |  |   |  |      
|                                           | Contract amount (€2,000 million)                   |                        |  |  |  |  |     
|                                           | Floor option(1)                                    |                        |   |  |   |  |      
|                                           | Repsol YPF would receive Floor rate 4%             |                        |   |  |   |  |      
|                                           | Repsol YPF would pay rate floating rate 3m EURIBOR |                        |   |  |   |  |      
|Interest rate option Repsol YPF ("Collar") |                                                    |                        |   |  |   |  |      
|                                           | Cap option(2)                                      |                        |   |  |   |  |      
|                                           | Repsol YPF would receive Cap rate 6m LIBOR         |                        |   |  |   |  |      
|                                           | Repsol YPF would pay rate 7.5%                     |                        |   |  |   |  |      
|                                           | Contract amount (US$77.4 million)                  |                        |  |  |  |  | 61.44
|                                           | Floor option(2)                                    |                        |   |  |   |  |      
|                                           | Repsol YPF would receive Floor rate 6m LIBOR       |                        |   |  |   |  |      
|                                           | Repsol YPF would pay rate 5.25%                    |                        |   |  |   |  |      

---

178

---



|                                           |                                               | Expected Maturity Date |   |  |   |  |  
|------------------------------------------ | --------------------------------------------- | ---------------------- | - |  | - |  | -
|
|
|
|Interest rate option Repsol YPF ("Collar") |                                               |                        |   |  |   |  |  
|                                           | Cap option(1)                                 |                        |   |  |   |  |  
|                                           | Repsol YPF would receive Cap rate 7%          |                        |   |  |   |  |  
|                                           | Repsol YPF would pay Floating rate 3m EURIBOR |                        |   |  |   |  |  
|                                           | Contract amount (€2,000 million)              |                        |  |  |  |  | 
|                                           | Floor option(1)                               |                        |   |  |   |  |  
|                                           | Repsol YPF would receive Floor rate 4%        |                        |   |  |   |  |  
|                                           | Repsol YPF would pay Floating rate 3m EURIBOR |                        |   |  |   |  |  
|Interest rate option Repsol YPF ("Collar") |                                               |                        |   |  |   |  |  
|                                           | Cap option                                    |                        |   |  |   |  |  
|                                           | Repsol YPF would receive Cap rate 6m LIBOR    |                        |   |  |   |  |  
|                                           | Repsol YPF would pay rate 7.5%                |                        |   |  |   |  |  
|                                           | Contract amount (US$41 million)               |                        |  |  |  |  | 
|                                           | Floor option(2)                               |                        |   |  |   |  |  
|                                           | Repsol YPF would receive Floor rate 6m LIBOR  |                        |   |  |   |  |  
|                                           | Repsol YPF would pay rate 5.26%               |                        |   |  |   |  |  

---



In connection with the July 7, 1999, equity offering, Repsol YPF offered to employees resident in Spain the possibility to purchase shares for cash or
through products called "Repsol Garantizado Plus 50" (RGP 50) and "Repsol Garantizado Plus 100" (RGP 100).

These
products included a partial financing contract for the purchase of shares of Repsol YPF and a hedging contract pursuant to which Repsol YPF, in exchange for a hedging premium above
the reference price, would pay to the employee 100% of the "latent loss" and, in the case of RGP 50 would receive from the employee 50% of the "latent accretion." This loss or accretion was calculated
as the difference between the so-called reference price (fixed at €20.218 per share) and the simple average of the average weighted price of shares of Repsol YPF during the
20 trading sessions prior to July 8, 2002, the date on which these contracts matured. The following table sets forth the number of shares purchased and the premiums received under these
products:

Product

Number of shares

Coverage premiumRGP50

8,418,135

7.4892
%RGP100

557,929

16.9973
%


Repsol
YPF accounted for the net economic effect associated with the hedging contract inherent in RGP 50 and RGP 100 products and with the partial hedging transactions. Repsol YPF took
into account the following factors:



179

---





Repsol
YPF accounted for the overall effect, if greater than zero, of these four factors as "Revenues to be distributed in several years." If the effect was negative, that part which
exceeded "Revenues to be distributed in several years" which had previously been accumulated was booked as a charge to income in the period in which the negative effect occurred. During the fiscal
years 2000, 2001 and 2002, Repsol YPF booked €4 million, €9 million and
€41 million as a charge to income under the item "Financial Expenses", in accordance with such criteria.

PART II

10. Defaults, Dividend Arrearages and Delinquencies

None.

11. Material Modifications to the Rights of Security Holders and Use of Proceeds

None.

12. Controls and Procedures

As of December 31, 2003, Repsol YPF, under the supervision and with the participation of its management, including the Chief Executive Officer and the
Chief Financial Officer, performed an evaluation of the effectiveness of its disclosure controls and procedures. Based on this evaluation, Repsol YPF's Chief Executive Officer and Chief Financial
Officer concluded that Repsol YPF's disclosure controls and procedures are effective at the reasonable assurance level for gathering, analyzing and disclosing the information that Repsol YPF is
required to disclose in the reports it files under the Securities Exchange Act of 1934, within the time periods specified in the SEC's rules and forms. Repsol YPF's management necessarily applied its
judgment in assessing the costs and benefits of such controls and procedures, which by their nature can provide only reasonable assurance regarding management's control objectives.

There
has been no change in Repsol YPF's internal controls over financial reporting that occurred during the period covered by this annual report that has materially affected, or is
reasonably likely to materially affect, Repsol YPF's internal control over financial reporting.

13A. Audit Committee Financial Expert

The Board of Directors of Repsol YPF, in its April 28, 2004 meeting, announced that D. Carmelo de las Morenas López met the conditions to be
considered an "Audit Committee Financial Expert" according to SEC rules and regulations.

13B. Code of Ethics

Repsol YPF has adopted a code of ethics applicable to all employees and the Board of Directors has adopted a code of conduct applicable to it. Since
November 26, 2003, the date on which the Board of Directors approved such codes of ethics, we have not waived compliance with, nor made any amendment to, the code of ethics. The code of ethics
has been filed as Exhibit 11.1 to this Annual Report on Form 20-F. The English translation of the code of ethics has been filed as Exhibit 11.2 to this Annual Report
on Form 20-F.

180

---



13C. Principal Accountant Fees and Services

The following table provides information on the aggregate fees billed by our principal accountants, Deloitte & Touche España, S.L., or by
other member firms of Deloitte to the Repsol YPF Group, classified by type of service rendered for the periods indicated.

|                      |  | 2003  |  | 2002(a)
|--------------------- |  | ----- |  | -------
|
|
|
|Audit Fees            |  | 4,785 |  | 63     
|Audit-Related Fees(1) |  | 127   |  | 1      
|Tax Fees(2)           |  | 211   |  |       
|All Other Fees(3)     |  | 237   |  |       
|                      |  |       |  |        
|                      |  | 5,360 |  | 64     
|                      |  |       |  |        

---

Services Rendered

2002Fees

ExpensesAudit Fees

277

20Audit Related Fees

78

Tax Fees

37

All Other Fees

141

533

20


---

Repsol
YPF's external auditors are appointed by its shareholders at the annual shareholders' meeting. Similarly, the shareholders of Repsol YPF's subsidiaries, which are located in
countries where applicable law and regulation so establishes, appoint such subsidiaries' external auditors.

The
Audit and Control Committee has a pre-approval policy regarding the contracting of Repsol YPF's external auditor, or any affiliate of the external auditor, for
professional services. The professional services covered by such policy include audit and non-audit services provided to Repsol YPF or any of its subsidiaries reflected in agreements dated
on or after May 6, 2003.

The
pre-approval policy is as follows:

181

---





182

---





PART III

14. Financial Statements

The Consolidated Financial Statements of Repsol YPF as of and for the years ended December 31, 2003, 2002 and 2001 attached to this annual report on
Form 20-F have been audited by Deloitte & Touche España, S.L., independent public accountants, as indicated in its report with respect to those Consolidated
Financial Statements. The consolidated financial statements of Gas Natural and its group companies as of and for the years ended December 31, 2003, 2002 and 2001 have been audited by
PricewaterhouseCoopers, independent accountants. These consolidated financial statements are not separately attached; however, to the extent they have been included in the Consolidated Financial
Statements of Repsol YPF, they have been included in reliance on the report of such auditors.

15. Exhibits

(a)Index to Financial Statements:

|                                                                                                              |  | Page
|------------------------------------------------------------------------------------------------------------- |  | ----
|Report of Deloitte & Touche España, S.L. to Repsol YPF, S.A.                                                  |  | F-2 
|Report of PricewaterhouseCoopers to Gas Natural SDG, S.A                                                      |  | F-3 
|Consolidated Balance Sheets of Repsol YPF, S.A. as of December 31, 2003 and 2002                              |  | F-4 
|Consolidated Statements of Income of Repsol YPF, S.A. for the years ended December 31, 2003, 2002 and 2001    |  | F-6 
|Notes to the Consolidated Financial Statements of Income for the years ended December 31, 2003, 2002 and 2001 |  | F-7 

(b)Index to Exhibits:

|1.1 |  | By-laws (Estatutos) of Repsol YPF, S.A., as amended (Spanish Version)                                                                                                                                                                                                                   
|--- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|1.2 |  | By-laws (Estatutos) of Repsol YPF, S.A., as amended (English Version)                                                                                                                                                                                                                   
|2.1 |  | Indenture among Repsol International Finance B.V., Repsol S.A. and The Chase Manhattan Bank, N.A., as Trustee, dated as of May 15, 1995*                                                                                                                                                
|2.2 |  | Trust Deed dated May 5, 2000 among Repsol International Finance B.V., Repsol, S.A. and Citicorp Trustee Company Limited relating to the €1,000,000,000 6% Guaranteed Notes due 2010 issued by Repsol International Finance B.V. and guaranteed by
Repsol, S.A.**                        
|2.3 |  | Supplemental Trust Deed dated June 21, 2001 among Repsol International Finance, B.V., Repsol YPF, S.A. and Citicorp Trustee Company Limited relating to the €175,000,000 6% Guaranteed Notes due 2010 issued by Repsol International Finance, B.V.
and guaranteed by Repsol YPF, S.A.***
|2.4 |  | Pricing Supplement dated December 3, 2001 relating to the €750,000,000 5.75% Notes due 2006 issued by Repsol International Finance, B.V. under the €5,000,000,000 Euro Medium Term Note Programme guaranteed by Repsol YPF,
S.A.***                                                     
|2.5 |  | Pricing Supplement dated July 18, 2003 relating to the €1,000,000,000 5% Floating Rate Notes due 2010 issued by Repsol Intentional Finance, B.V. under the €5,000,000,000 Euro Medium Term Note Programme guaranteed by Repsol YPF,
S.A.                                                
|    |  |                                                                                                                                                                                                                                                                                         

183

---



|2.6  |  | Amended and Restated Trust Deed dated November 4, 2003 among Repsol International Finance, B.V., Repsol YPF, S.A. and Citicorp Trustee Company Limited relating to the €5,000,000,000 Guaranteed Euro Medium Term Notes Programme of Repsol
International Finance, B.V. due from one month to 30 years from the date of original issue guaranteed by Repsol YPF, S.A.
|---- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|4.1  |  | Shareholders' Agreement between Repsol YPF and La Caixa, dated January 11, 2000****                                                                                                                                                                                                                                                                                  
|4.2  |  | Novation Agreement between Repsol YPF and La Caixa, dated May 16, 2002****                                                                                                                                                                                                                                                                                           
|4.3  |  | Addendum to the Novation Agreement between Repsol YPF and La Caixa of May 16, 2002, dated December 16, 2002****                                                                                                                                                                                                                                                      
|4.4  |  | Second Addendum to the Novation Agreement between Repsol YPF and La Caixa of May 16, 2002, dated June 20, 2003****                                                                                                                                                                                                                                                   
|8.1  |  | List of significant subsidiaries                                                                                                                                                                                                                                                                                                                                     
|10.1 |  | Consent of Deloitte & Touche España, S.L.                                                                                                                                                                                                                                                                                                                            
|10.2 |  | Consent of PricewaterhouseCoopers                                                                                                                                                                                                                                                                                                                                    
|10.3 |  | Consent of Gaffney, Cline & Associates                                                                                                                                                                                                                                                                                                                               
|10.4 |  | Consent of DeGolyer and MacNaughton                                                                                                                                                                                                                                                                                                                                  
|11.1 |  | Code of ethics                                                                                                                                                                                                                                                                                                                                                       
|11.2 |  | Code of ethics (English translation)                                                                                                                                                                                                                                                                                                                                 
|12.1 |  | Section 302 Certification by the Chief Executive Officer                                                                                                                                                                                                                                                                                                             
|12.2 |  | Section 302 Certification by the Chief Financial Officer                                                                                                                                                                                                                                                                                                             
|13.1 |  | Section 906 Certification                                                                                                                                                                                                                                                                                                                                            

---

184

---



16. Signatures

The registrant hereby certifies that it meets all of the requirements for filing on Form 20-F and that it has duly caused and authorized the
undersigned to sign this annual report on its behalf.

| |  | REPSOL YPF, S.A.
| |  | ----------------
| |  | By:             
| |  |                 
| |  |                 

Date:
July 1, 2004

185

---





REPSOL YPF, S.A. AND COMPANIES COMPOSING        THE REPSOL YPF GROUP

CONSOLIDATED BALANCE SHEETS        AS OF DECEMBER 31, 2003 AND 2002        AND CONSOLIDATED STATEMENTS OF INCOME,        CASH FLOWS AND CHANGES IN SHAREHOLDERS' EQUITY    
FOR THE YEARS ENDED DECEMBER 31, 2003, 2002 AND 2001

F-1

---





Independent Auditors' Report

To
the Shareholders of Repsol YPF, S.A.:

We
have audited the accompanying consolidated balance sheets of Repsol YPF, S.A. and subsidiaries ("The Company") as of December 31, 2003, and 2002, and the related consolidated
statements of income for each of the three years in the period ended December 31, 2003, all expressed in millions of euros. These consolidated financial statements are the responsibility of the
Company's management. Our responsibility is to express an opinion on the consolidated financial statements taken as a whole based on our audit. We did not audit the consolidated financial statements
of Gas Natural SDG, S.A. and subsidiaries, in which Repsol YPF, S.A. had a 27.15% and 24.04% holding as of December 31, 2003 and 2002, respectively, which statements reflect total assets
constituting 7.19% and 5.65%, respectively, of consolidated total assets as of December 31, 2003 and 2002, and net income constituting 6.89%, 13.1%, and 25.56% of consolidated net income as of
December 31, 2003, 2002 and 2001, respectively. The consolidated financial statements of Gas Natural SDG, S.A. and subsidiaries and the amounts included in the reconciliation note of the
Company's financial statements (see Note 27) in respect of Gas Natural SDG, S.A. and subsidiaries were audited by other auditors (see Exhibit I) whose report has been furnished to us,
and our opinion, insofar a it relates to the amounts included for Gas Natural SDG., S.A. and subsidiaries, is based solely on the report of such other auditors.

We
conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in
the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement
presentation. We believe that our audits and the report of the other auditors provide a reasonable basis for our opinion.

In
our opinion, based on our audit and on the report of the other auditors (see Exhibit I), the consolidated financial statements referred to above present fairly, in all material
respects, the financial position of Repsol YPF, S.A. and subsidiaries as of December 31, 2003, and 2002, and the funds obtained and applied by them and the results of their operations for each
of the three years in the period ended December 31, 2003, in conformity with accounting principles generally accepted in Spain.

Accounting
principles generally accepted in Spain vary in certain significant respects from accounting principles generally accepted in the United States of America. The application of
the latter would have affected the determination of net income for each of the three years in the period ended December 31, 2003, and the determination of stockholders' equity and financial
position as of December 31, 2003, and 2002, to the extent summarized in Note 27.

The
net investment, including goodwill in consolidation, of the Repsol YPF Group in the companies in Argentina amounted to approximately €11,283 million as of
December 31, 2003. A profound change was implemented in the Argentine economic system characterized by the abandonment of the one-to-one peg of the Argentine peso to the
U.S. dollar and the adoption of various monetary, financial, tax and foreign exchange measures. At the date of this report and despite the favorable economic situation in Argentina, certain structural
problems remain, the final resolution of which may determine the future evolution of the country and the measures to be adopted by the Argentine Government. In Note 1.e) the directors set forth
these and other aspects relating to the current situation in Argentina and their possible impact on the future course of the Group's operations in Argentina.

DELOITTE &
TOUCHE ESPAÑA, S.L.

/s/
DELOITTE & TOUCHE ESPAÑA, S.L.

Madrid,
Spain
March 3, 2004, except for Note 27, as to which the date is June 30, 2004

F-2

---



REPORT OF INDEPENDENT AUDITORS ON THE CONSOLIDATED ANNUAL  ACCOUNTS OF GAS NATURAL SDG, S.A.

To
the Board of Directors of Gas Natural SDG, S.A.

We
have audited the consolidated annual accounts of Gas Natural SDG, S.A. and its Group companies consisting of the consolidated balance sheets at December 31, 2003 and 2002, the
consolidated profit and loss accounts and the consolidated notes for each of the three years in the period ended December 31, 2003 (not presented separately herein), all expressed in euros,
whose preparation is the responsibility of the Directors of Gas Natural SDG, S.A. Our responsibility is to express an opinion on the aforementioned consolidated annual accounts as a whole,
based on our audit.

We
conducted our audits of these annual accounts in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the consolidated annual accounts are free of material misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the consolidated annual accounts. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the
overall consolidated annual accounts presentation. We believe that our audit provides a reasonable basis for our opinion.

In
our opinion, the consolidated annual accounts referred to above audited by us present fairly, in all material respects, the financial position of Gas Natural SDG, S.A. and its
Group companies as of December 31, 2003 and 2002, and the results of their operations and the resources obtained and applied for each of the three years in the period ended December 31,
2003, in conformity with generally accepted accounting principles in Spain.

Accounting
principles generally accepted in Spain vary in certain significant respects from accounting principles generally accepted in the United States of America. Information relating
to the nature and effect of such differences is included in a quantification of differences between accounting principles generally accepted in the United States of America and accounting principles
generally accepted in Spain as applied to Gas Natural for the consolidated balance sheets at December 31, 2003 and 2002 and the consolidated profit and loss accounts for each of the three years
in the period ended December 31, 2003. This reconciliation (not presented separately herein) was prepared at the request of Gas Natural's shareholder Repsol YPF, S.A. for the purposes of
its annual report on Form 20-F for the year ended December 31, 2003. The information included in this reconciliation does not comply with the requirements of Item 18 of
Form 20-F for the following reasons:

(i)    A
statement of cash-flows has not been prepared for the three years ended December 31, 2003.

(ii)   Additional
disclosures required by US GAAP and Regulation S-X have been omitted as of December 31, 2003 and 2002 and for the three years ended
December 31, 2003.

(iii)  As
of December 31, 2003 and 2002 and for the two year period ended December 31, 2003 the application of purchase price accounting as required by
Statement of Financial Accounting Standards No. 141Business Combinationsfor business combinations completed after June 30, 2001 and the
impairment analysis required by Statement of Financial Accounting Standards No. 142Goodwill and Other Intangiblehas not been performed at the
Gas Natural Group level.

PricewaterhouseCoopers

/s/
PricewaterhouseCoopers

March
2, 2004

F-3

---





Translation of a report and consolidated financial statements originally issued in Spanish and
prepared in accordance with generally accepted accounting principles in Spain (see Note 27).
In the event of a discrepancy, the Spanish-language version prevails.

REPSOL YPF, S.A. AND COMPANIES COMPOSING THE REPSOL YPF GROUP        CONSOLIDATED BALANCE SHEETS        As of December 31, 2003 and 2002

|                                                              |                                                           | Millions of Euros                    |                                        
|------------------------------------------------------------- | --------------------------------------------------------- | ------------------------------------ | ---------------------------------------
|
|
|FIXED AND OTHER NONCURRENT ASSETS                             |                                                           |                                      |                                        
|Start-up expenses (Note 3)                                    |                                                           | 23                                   |                                        
|Intangible assets (Note 4)                                    |                                                           |                                      |                                        
|                                                              | Cost                                                      |                                      | 1,647                                  
|                                                              | LessAccumulated depreciation, depletion and amortization |                                      | (655                                   
|                                                              |                                                           |                                      |                                        
|                                                              |                                                           | 992                                  |                                        
|Property, plant and equipment (Note 5)                        |                                                           |                                      |                                        
|                                                              | Cost                                                      |                                      | 43,347                                 
|                                                              | LessAccumulated depreciation, depletion and amortization |                                      | (23,876                                
|                                                              |                                                           |                                      |                                        
|                                                              |                                                           | 19,471                               |                                        
|Investments in affiliates and other financial assets (Note 6) |                                                           | 1,461                                |                                        
|                                                              |                                                           |                                      |                                        
|                                                              |                                                           |                                      | Total fixed and other noncurrent assets
|GOODWILL ARISING ON CONSOLIDATION (Note 7)                    |                                                           | 2,496                                |                                        
|DEFERRED EXPENSES (Note 8)                                    |                                                           | 662                                  |                                        
|DEFERRED TAX ASSETS (Note 15)                                 |                                                           | 924                                  |                                        
|CURRENT ASSETS                                                |                                                           |                                      |                                        
|                                                              | Inventories (Note 9)                                      |                                      | 2,109                                  
|                                                              | Accounts receivable                                       |                                      |                                        
|                                                              |                                                           | Trade                                |                                        
|                                                              |                                                           | Tax receivables                      |                                        
|                                                              |                                                           | Other accounts receivable            |                                        
|                                                              |                                                           | LessAllowance for doubtful accounts |                                        
|                                                              |                                                           |                                      |                                        
|                                                              | Total accounts receivable                                 |                                      | 4,582                                  
|                                                              | Short-term financial investments (Note 10)                |                                      | 5,031                                  
|                                                              | Cash on hand and at banks                                 |                                      | 247                                    
|                                                              | Prepaid expenses and deferred collections                 |                                      | 35                                     
|                                                              |                                                           |                                      |                                        
|                                                              |                                                           |                                      | Total current assets                   
|                                                              |                                                           |                                      |                                        
|TOTAL ASSETS                                                  |                                                           | 38,033                               |                                        
|                                                              |                                                           |                                      |                                        

The
accompanying Notes 1 to 28 are an integral part of these consolidated balance sheets.

F-4

---



Translation
of a report and consolidated financial statements originally issued in Spanish and
prepared in accordance with generally accepted accounting principles in Spain (see Note 27).
In the event of a discrepancy, the Spanish-language version prevails.

REPSOL YPF, S.A. AND COMPANIES COMPOSING THE REPSOL YPF GROUP        CONSOLIDATED BALANCE SHEETS        As of December 31, 2003 and 2002

|                                           |                                               | Millions of Euros    |       
|------------------------------------------ | --------------------------------------------- | -------------------- | ------
|
|
|SHAREHOLDERS' EQUITY (Note 11)             |                                               |                      |       
|                                           | Capital stock                                 |                      | 1,221 
|                                           | Paid-in surplus                               |                      | 6,428 
|                                           | Other reserves of the parent company:         |                      |       
|                                           |                                               | Revaluation reserves |       
|                                           |                                               | Other reserves       |       
|                                           | Reserves of consolidated companies            |                      | 4,940 
|                                           | Translation differences                       |                      | (4,650
|                                           | Net income for the year                       |                      | 2,020 
|                                           | Interim dividend                              |                      | (244  
|                                           |                                               |                      |       
|                                           |                                               |                      |       
|                                           |                                               |                      |       
|MINORITY INTERESTS (Note 12)               |                                               | 4,054                |       
|                                           |                                               |                      |       
|NEGATIVE GOODWILL                          |                                               | 13                   |       
|                                           |                                               |                      |       
|SUBSIDIES AND DEFERRED REVENUES (Note 13)  |                                               | 336                  |       
|                                           |                                               |                      |       
|LONG-TERM LIABILITIES (Note 14)            |                                               |                      |       
|                                           | Pensions costs                                |                      | 75    
|                                           | Other provisions                              |                      | 1,379 
|                                           |                                               |                      |       
|                                           |                                               |                      |       
|                                           |                                               |                      |       
|DEFERRED TAX LIABILITIES (Note 15)         |                                               | 674                  |       
|LONG-TERM DEBT                             |                                               |                      |       
|                                           | Loans (Note 16)                               |                      | 6,454 
|                                           | Refundable deposits (Note 17)                 |                      | 198   
|                                           | State financing of investments in exploration |                      | 3     
|                                           | Other accounts payable                        |                      | 1,030 
|                                           |                                               |                      |       
|                                           |                                               |                      |       
|                                           |                                               |                      |       
|CURRENT LIABILITIES                        |                                               |                      |       
|                                           | Short-term debt (Note 16)                     |                      | 4,369 
|                                           | Suppliers of products                         |                      | 2,630 
|                                           | Other accounts payable                        |                      | 1,889 
|                                           | Accrued taxes payable                         |                      | 1,260 
|                                           | Accrual liabilities                           |                      | 37    
|                                           |                                               |                      |       
|                                           |                                               |                      |       
|                                           |                                               |                      |       
|TOTAL SHAREHOLDERS' EQUITY AND LIABILITIES |                                               | 38,033               |       
|                                           |                                               |                      |       

The
accompanying Notes 1 to 28 are an integral part of these consolidated balance sheets.

F-5

---





REPSOL YPF, S.A. AND COMPANIES COMPOSING THE REPSOL YPF GROUP    CONSOLIDATED STATEMENTS OF INCOME    FOR THE YEARS ENDED DECEMBER 31, 2003, 2002 AND 2001    (Amounts in millions of euros,
except per share amounts)

|                                                              |                                                       | 2003    |         | 2002    |         | 2001    |        
|------------------------------------------------------------- | ----------------------------------------------------- | ------- | ------- | ------- | ------- | ------- | -------
|Operating revenues                                            |                                                       |         |         |         |         |         |        
|                                                              | Sales                                                 |         | 36,069  |         | 35,555  |         | 42,851 
|                                                              | Other                                                 |         | 1,137   |         | 935     |         | 802    
|                                                              |                                                       |         |         |         |         |         |        
|Total operating revenues                                      |                                                       | 37,206  |         | 36,490  |         | 43,653  |        
|Operating expenses                                            |                                                       |         |         |         |         |         |        
|                                                              | Materials consumed                                    |         | (24,314 | )       | (24,198 | )       | (26,921
|                                                              | Personnel expenses                                    |         | (1,111  | )       | (1,161  | )       | (1,732 
|                                                              | Taxes other than income tax                           |         | (1,155  | )       | (1,039  | )       | (1,207 
|                                                              | Outside work, supplies and services                   |         | (3,658  | )       | (3,305  | )       | (4,705 
|                                                              | Transport and freight                                 |         | (863    | )       | (838    | )       | (1,197 
|                                                              | Depreciation, depletion and amortization              |         | (2,245  | )       | (2,626  | )       | (2,971 
|                                                              |                                                       |         |         |         |         |         |        
|Total operating expenses                                      |                                                       | (33,346 | )       | (33,167 | )       | (38,733 | )      
|Operating income                                              |                                                       | 3,860   |         | 3,323   |         | 4,920   |        
|Extraordinary income/(expense) (Note 18)                      |                                                       |         |         |         |         |         |        
|                                                              | Labor force restructuring                             |         | (32     | )       | (54     | )       | (103   
|                                                              | Extraordinary provisions                              |         | (108    | )       | (660    | )       | (888   
|                                                              | Capital gains (losses) and other extraordinary income |         | (14     | )       | 1,362   |         | 214    
|                                                              |                                                       |         |         |         |         |         |        
|                                                              |                                                       | (154    | )       | 648     |         | (777    | )      
|Amortization of goodwill                                      |                                                       | (174    | )       | (300    | )       | (323    | )      
|Interest income (expense)                                     |                                                       |         |         |         |         |         |        
|                                                              | Interest income                                       |         | 2,123   |         | 2,386   |         | 1,740  
|                                                              | Interest expense                                      |         | (2,523  | )       | (3,172  | )       | (3,092 
|                                                              |                                                       |         |         |         |         |         |        
|                                                              |                                                       | (400    | )       | (786    | )       | (1,352  | )      
|Share in the income of companies carried by the equity method |                                                       | 146     |         | (35     | )       | 35      |        
|                                                              |                                                       |         |         |         |         |         |        
|Income before income tax and minority interests               |                                                       | 3,278   |         | 2,850   |         | 2,503   |        
|Income tax(Note 15)                                           |                                                       | (1,048  | )       | (564    | )       | (988    | )      
|Income attributed to minority interests(Note 12)              |                                                       | (210    | )       | (334    | )       | (490    | )      
|                                                              |                                                       |         |         |         |         |         |        
|Net income                                                    |                                                       | 2,020   |         | 1,952   |         | 1,025   |        
|                                                              |                                                       |         |         |         |         |         |        
|Net income per share                                          |                                                       | 1.66    |         | 1.60    |         | 0.84    |        
|Average number of shares (millions)                           |                                                       | 1,220   |         | 1,220   |         | 1,220   |        

The
Notes 1 to 28 are an integral part of these consolidated statements of income.

F-6

---





Translation of consolidated financial statements originally issued in Spanish and prepared in accordance with generally accepted accounting principles in Spain (see Note 27). In the event of a
discrepancy, the Spanish-language version prevails

REPSOL YPF, S.A. AND COMPANIES COMPRISING THE REPSOL YPF GROUP        NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS        CONTENTS

|1. |  | BASIS OF PRESENTATION, CONSOLIDATION PRINCIPLES AND REGULATORY FRAMEWORK |  | F-7 
|-- |  | ------------------------------------------------------------------------ |  | ----
|   |  |                                                                          |  | a.  
|   |  |                                                                          |  | b.  
|   |  |                                                                          |  | c.  
|   |  |                                                                          |  | d.  
|   |  |                                                                          |  | e.  
|   |  |                                                                          |  | f.  
|   |  |                                                                          |  | g.  
|2. |  | ACCOUNTING POLICIES                                                      |  | F-21
|   |  |                                                                          |  | a.  
|   |  |                                                                          |  | b.  
|   |  |                                                                          |  | c.  
|   |  |                                                                          |  |     
|   |  |                                                                          |  |     
|   |  |                                                                          |  |     
|   |  |                                                                          |  |     
|   |  |                                                                          |  | d.  
|   |  |                                                                          |  | e.  
|   |  |                                                                          |  | f.  
|   |  |                                                                          |  | g.  
|   |  |                                                                          |  | h.  
|   |  |                                                                          |  | i.  
|   |  |                                                                          |  | j.  
|   |  |                                                                          |  | k.  
|   |  |                                                                          |  | l.  
|   |  |                                                                          |  | m.  
|   |  |                                                                          |  | n.  
|   |  |                                                                          |  | o.  
|   |  |                                                                          |  | p.  
|   |  |                                                                          |  | q.  
|   |  |                                                                          |  | r.  
|   |  |                                                                          |  | s.  
|3. |  | START-UP EXPENSES                                                        |  | F-29
|4. |  | INTANGIBLE ASSETS                                                        |  | F-29
|5. |  | PROPERTY, PLANT AND EQUIPMENT                                            |  | F-30
|6. |  | INVESTMENTS IN AFFILIATES AND OTHER FINANCIAL ASSETS                     |  | F-34
|7. |  | GOODWILL ARISING ON CONSOLIDATION                                        |  | F-39
|8. |  | DEFERRED EXPENSES                                                        |  | F-41
|9. |  | INVENTORIES                                                              |  | F-42
|   |  |                                                                          |  |     

F-7

---



|10.                                                                                                    |  | SHORT-TERM FINANCIAL INVESTMENTS                                                                                      |  | F-42 
|------------------------------------------------------------------------------------------------------ |  | --------------------------------------------------------------------------------------------------------------------- |  | -----
|11.                                                                                                    |  | SHAREHOLDERS' EQUITY                                                                                                  |  | F-43 
|12.                                                                                                    |  | MINORITY INTERESTS                                                                                                    |  | F-48 
|13.                                                                                                    |  | SUBSIDIES AND DEFERRED REVENUES                                                                                       |  | F-51 
|14.                                                                                                    |  | LONG-TERM LIABILITIES                                                                                                 |  | F-52 
|15.                                                                                                    |  | TAX MATTERS                                                                                                           |  | F-53 
|16.                                                                                                    |  | LONG AND SHORT-TERM DEBT                                                                                              |  | F-57 
|17.                                                                                                    |  | REFUNDABLE DEPOSITS                                                                                                   |  | F-59 
|18.                                                                                                    |  | REVENUES AND EXPENSES                                                                                                 |  | F-59 
|19.                                                                                                    |  | INFORMATION ON BOARD MEMBERS AND MANAGEMENT PERSONNEL                                                                 |  | F-61 
|                                                                                                       |  |                                                                                                                       |  | a)   
|                                                                                                       |  |                                                                                                                       |  | b)   
|                                                                                                       |  |                                                                                                                       |  | c)   
|20.                                                                                                    |  | AVERAGE HEADCOUNT                                                                                                     |  | F-65 
|21.                                                                                                    |  | BUSINESS SEGMENT DATA                                                                                                 |  | F-65 
|22.                                                                                                    |  | ENVIRONMENTAL INFORMATION                                                                                             |  | F-74 
|23.                                                                                                    |  | OTHER INFORMATION                                                                                                     |  | F-77 
|                                                                                                       |  |                                                                                                                       |  |     
|                                                                                                       |  |                                                                                                                       |  |     
|                                                                                                       |  |                                                                                                                       |  |     
|                                                                                                       |  |                                                                                                                       |  |     
|                                                                                                       |  |                                                                                                                       |  |     
|                                                                                                       |  |                                                                                                                       |  |     
|                                                                                                       |  |                                                                                                                       |  |     
|                                                                                                       |  |                                                                                                                       |  |     
|                                                                                                       |  |                                                                                                                       |  |     
|                                                                                                       |  |                                                                                                                       |  |     
|                                                                                                       |  |                                                                                                                       |  |     
|                                                                                                       |  |                                                                                                                       |  |     
|                                                                                                       |  |                                                                                                                       |  |     
|24.                                                                                                    |  | SUBSEQUENT EVENTS                                                                                                     |  | F-92 
|25.                                                                                                    |  | CONSOLIDATED STATEMENTS OF CHANGES IN FINANCIAL POSITION                                                              |  | F-92 
|26.                                                                                                    |  | CONSOLIDATED ANALYTICAL STATEMENTS OF INCOME                                                                          |  | F-94 
|27.                                                                                                    |  | DIFFERENCES BETWEEN SPANISH AND UNITED STATES GENERALLY ACCEPTED ACCOUNTING PRINCIPLES AND OTHER REQUIRED DISCLOSURES |  | F-94 
|28.                                                                                                    |  | REPSOL INTERNATIONAL FINANCE, B.V. SUMMARIZED FINANCIAL INFORMATION                                                   |  | F-137
|SUPPLEMENTARY INFORMATION ON OIL AND GAS EXPLORATION AND PRODUCTION ACTIVITIES (Unaudited information) |  | F-148                                                                                                                

F-8

---





Translation of consolidated financial statements originally issued in Spanish and prepared in accordance with generally accepted accounting principles in Spain (see Note 27).
In the event of a discrepancy, the Spanish-language version prevails

REPSOL YPF, S.A. AND COMPANIES COMPOSING THE REPSOL YPF GROUP        NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(1) BASIS OF PRESENTATION, CONSOLIDATION PRINCIPLES AND REGULATORY FRAMEWORK



REPSOL
YPF, S.A. and the companies composing the REPSOL YPF Group (hereinafter "REPSOL YPF" or the "REPSOL YPF Group") constitute an integrated group of oil and gas companies which
commenced operations in 1987 and engage in all the activities relating to the oil and gas industry, including exploration, the development and production of crude oil and natural gas, the
transportation of oil products, L.P.G. and natural gas, refining, the production of a wide range of oil products and the retailing of oil products, oil derivatives, petrochemicals, L.P.G. and natural
gas.

The
accompanying consolidated financial statements, which were prepared from the accounting records of REPSOL YPF, S.A. and companies composing the REPSOL YPF Group, are presented in
accordance with current legislation, the Spanish Corporations Law, generally accepted accounting principles in Spain ("Spanish GAAP") and consolidation regulations and, accordingly, give a true and
fair view of the Group's shareholders' equity, financial position and results of operations. Differences between Spanish GAAP and generally accepted accounting principles in the United States of
America (U.S. GAAP) and their effect on the consolidated net income for each of the years 2003, 2002 and 2001 and on the consolidated shareholders' equity as of December 31, 2003 and 2002, are
set forth in Note 27.

Article 1.1
of Royal Decree 2814/1998 enacting the regulations on the accounting aspects of the introduction of the Euro stipulates that consolidated financial statements
expressed in Euros may include values in thousands of Euros when the magnitude of the figures so requires, and that this circumstance must be disclosed in the related notes. However, the directors
consider that, given the magnitude of the figures in the Group's financial statements, and on the basis of standard practice among companies in the industry, presenting the financial statements in
millions of Euros gives a truer and fairer view of the Company's shareholders' equity, financial position and results of operations and, accordingly, facilitates their better comprehension.

The
2003 financial statements, which were prepared by the Board of Directors of REPSOL YPF, S.A., will be submitted, as will those of the investees, for approval by the respective
Shareholders' Meetings, and it is considered that they will be approved without any changes. The 2002 financial statements were approved by the Shareholders' Meeting on April 4, 2003.



The
Exhibit I hereto shows the consolidated dependent, associated and multigroup companies directly or indirectly owned by REPSOL YPF, S.A. The investees excluded from
consolidation represent approximately 0.26%, 0.18% y 0.24% of REPSOL YPF's assets, operating revenues and operating income, respectively, for 2003.

The
companies were consolidated on the basis of the following principles:



F-9

---





All
material balances, transactions and profits between the companies consolidated by the global integration method were eliminated in consolidation.

All
accounts receivable and payable, revenues, expenses and income derived from transactions between the companies consolidated by the proportional integration method and other Group
companies were eliminated in proportion to REPSOL YPF's percentage of ownership of these companies.

Income
derived from transactions between Group and associated companies was eliminated in proportion to the Group's percentage of ownership of these companies.



In
order to present the consolidated financial statements using uniform valuation standards, adjustments were made in consolidation at investees that apply accounting and valuation
methods that differ from those of the Group when the effect thereof was material.



For
the purpose of preparing the accompanying consolidated financial statements, the investees' financial statements denominated in foreign currencies were translated to Euros as
follows: assets, rights and obligations were translated at the year-end exchange rates; capital stock and reserves were translated at the historical exchange rates; and revenues and
expenses were translated at the average exchange rates in the periods in which they arose.

The
resulting translation differences, net of the portion relating to minority interests, which is recorded under the "Minority Interests" caption, are included under the "Translation
Differences" caption in the accompanying consolidated balance sheets (see Note 11).

F-10

---



The
exchange rates against the euro of the main currencies used by the Group companies as of December 31, 2003, 2002 and 2001, were as follows:

December 31, 2003

December 31, 2002

December 31, 2001U.S. dollar

1.260

1.049

0.89Argentine peso

3.666

3.481

1.513Brazilian real

3.640

3.705

2.066Chilean peso

748.010

753.463

582.829




Under
Regulation 1606/2002/EC of the European Parliament and Council of July 19, 2002, on the application of International Financial Reporting Standards, EU listed groups
are required, effective for the years beginning on or after January 1, 2005, to prepare their consolidated financial statements in accordance with International Financial Reporting Standards.

The
International Financial Reporting Standards are issued by the International Accounting Standards Board (IASB), an independent agency based in London which, since April 1,
2002, has been carrying out the duties that were formerly fulfilled by its predecessor the International Accounting Standards Committee (IASC).

In
2002 the IASB undertook a project to improve and update the standards already issued and in force. In December 2003, the IASB finally approved the general improvement project
which affected a total of 14 standards and the improvements to the standards on the recording, valuation and presentation of financial instruments. In this connection, it should be noted that all the
improvements are pending approval by the European Commission. Also, in the first half of 2004 the IASB will foreseeably approve new standards including most notably, because of their importance for
the Repsol YPF Group, those relating to the treatment of business combinations, impairment of assets and the recording and valuation of intangible assets.

The
application of International Financial Reporting Standards will lead to the emergence of differences in the treatment of certain transactions with respect to generally accepted
accounting principles and standards in Spain, firstly, because of the non-acceptance of certain methods currently used and, secondly, because of the introduction of certain accounting
treatments not permitted hitherto under Spanish accounting regulations. Additionally, IFRS provide for the so-called "alternative treatments" which permit the use of policies and methods
hitherto not admitted under the current Spanish General Chart of Accounts.

Based
on the foregoing, in 2003 the Repsol YPF Group carried out a project in order to analyze these differences and alternative treatments, to assess the effects and implications
thereof and to establish the accounting policies and methods to give a true and fair view of the Group's net worth and financial position and of the results of its operations in conformity with the
new standards. As a result of this project, whose current stage of completion will enable the Group to meet the effective dates established by the European Commission, and considering that at the date
of presentation of these financial statements there are international financial reporting standards issued by the IASB which are still in draft version or pending approval by the European Commission,
following are the most

F-11

---



significant
aspects which will foreseeably affect the financial statements to be prepared by the Repsol YPF Group in accordance with IFRS:



The
oil and gas industry in Spain is mainly regulated by Law 34/1998 approved on October 7, 1998 and its implementing regulations, and by Royal Decree-Laws 6/1999 and
6/2000, approved on April 16, 1999 and on June 23, 2000, respectively, which increased competition and deregulation of the industry.

F-12

---



The
following noteworthy matters occurred during the time period covered by this report:



F-13

---













F-14

---





After four consecutive years of GDP falls, the Argentine economy recovered in 2003. Economic growth, which based on preliminary estimates was 8.4% for the year,
was driven by the manufacturing industry (which grew by 16.3%) and by the construction industry (which grew by 38% year-on-year).

The
signs of economic recovery were that imports increased by 54% in 2003 to $13,813 million; the trade balance showed a significant surplus of $15,536 million; and,
although lower than in 2002, the current account balance surplus was nearly 6% of GDP. By contrast, there were net capital outflows and the central bank's international foreign currency reserves
increased.

The
exchange rate of the Argentine peso against the dollar improved over the year from ARP 3.40/$ at the beginning of the year to ARP 2.90/$ at year-end.
Year-on-year retail inflation was only 3.7% in December, well below the forecasts made in early 2003.

In
the fiscal area, the economic recovery and the maintenance of emergency taxes such as the withholdings from exports of crude oil and products, gave rise to a significant improvement
in the public accounts. Tax collections by the AFIP (the Argentine Federal Administration of Public Revenue), which is the main tax collection agency, grew 43% year-on-year,
and the domestic public sector's primary surplus was ARP 8,688 million in 2003 (11% more than the target pacted with the IMF).



The economic recovery in Argentina enabled the authorities to make further progress in the economic normalization process. Among other measures adopted, the
Congress approved the legislation required to complete the renegotiation of the public service contracts in 2004, and to compensate banks for the losses arising from the asymmetric pesification of
their balance sheets. An anti tax-evasion law was also approved to underpin the improved fiscal situation.

Decrees
relating to the gas industry, which will permit the normalization of gas prices in Argentina, were recently enacted.



In January 2003, Argentina signed a short-term standby agreement with the IMF which was replaced with a new three-year agreement in
September 2003. The financing involved matches the scheduled payments to the IMF and, therefore, the net debt would remain relatively stable. Although with certain delays, Argentina
successfully passed the first review of the agreement, since it had amply met the quantitative targets.

F-15

---



Certain
countries in disagreement with the Argentine position with respect to the problem of the defaulting debt made their support for the IMF program conditional upon the country
further restructuring its debt.



Macro-economic forecasts for 2004 are optimistic and above the official budget and IMF estimates.

Exports
are expected to continue to be favored by the high international prices of recent months and inflation is expected to remain within limits. In the fiscal area, the sustained
growth in public revenue will make it possible to meet the target primary result of 3% of GDP. The private forecasts for economic growth in 2004, which were prepared in February, point to an average
growth rate of 6.2%, above the official 4% guideline.

ARGENTINE ECONOMY FORECASTS  February 2004Source: Consensus Forecast

2003(e)

2004

2005GDP growth

8.4
%
6.2
%
4.1
%Gross fixed investment growth

33.0
%
16.7
%
8.9
%Inflation

3.7
%
7.1
%
6.6
%Current account balance (US$M)

8,200

6,300

5,000Fiscal result (% of GDP)

0.5
%
1.0
%
0.8
%


Notwithstanding
the foregoing, and despite the favorable economic trend, certain structural problems remain unsolved, and their resolution may significantly condition Argentina's future
economic performance. These problems are mainly as follows:



It
should be noted that developments have taken place recently in connection with these problems, such as the formation of the syndicate of banks entrusted with the implementation of the
securities exchange offer (scheduled for mid-2004) and the announcement by the Argentine government of the process to increase gas and electricity prices for industrial consumers.

The
proper resolution of these and other structural issues should lead to a sustainable change in the medium- and long-term prospects, which should significantly affect the
future context in which the Group's operations in Argentina will be performed.

The
directors consider that the accompanying consolidated financial statements reflect all the significant events and effects of the economic and regulatory situation prevailing in
Argentina at the date of their preparation. Also, based on the reasonably to be expected advances in the above-

F-16

---



mentioned
aspects, the directors consider that, in their opinion, the adoption of measures or the occurrence of events which might have a significant negative impact on the Group's operations in
Argentina is unlikely.



The
main variations in the scope of consolidation in 2003 were as follows:





The
effect of the changes in the scope of consolidation in 2003 was an increase of 1.86%, a decrease of 0.01% and an increase of 2.21% in the assets, operating revenues and operating
income, respectively, of the Repsol YPF Group.

The
main variations in the scope of consolidation in 2002 were as follows:



F-17

---







|Millions of Euros                 | 
|--------------------------------- | 
|
|Fixed and other noncurrent assets | 
|Goodwill arising on consolidation | 
|Deferred expenses                 | 
|Deferred tax assets               | 
|Operating working capital         | 
|                                  | 
|                                  | 
|                                  | 



F-18

---





The
net effect of the aforementioned changes in the 2002 scope of consolidation, except for the change in the consolidation method of Gas Natural SDG, was a decrease of 1.9%, an increase
of 0.9% and a decrease of 0.2% in the assets, operating revenues and operating income, respectively, of the REPSOL YPF Group.

F-19

---





The
main variations in the scope of consolidation in 2001, were as follows:







F-20

---









F-21

---









F-22

---





(2) ACCOUNTING POLICIES

The
main accounting principles applied by REPSOL YPF were as follows:











F-23

---









Years of Estimated Useful LifeBuildings and other structures

30-50Machinery, plant and equipment:Machinery, installations and tools

8-15Furniture and fixtures

9-15Refineries in service:Units

8-15Storage tanks

20-30Pipelines and networks

12-18Gas infrastructure and distribution facilities

20-30Transport equipment

5-20






F-24

---







F-25

---







F-26

---



















F-27

---











F-28

---









F-29

---











F-30

---





(3) START-UP EXPENSES

The
variations in this caption in the consolidated balance sheet as of December 31, 2003 and 2002, were as follows:

Millions of Euros2003

2002Beginning balance

61

100Amortization

(38
)
(39
)Ending balance

23

61


F-31

---



(4) INTANGIBLE ASSETS

The
detail of the balances of intangible asset accounts and of the related accumulated amortization as of December 31, 2003 and 2002, and of the variations therein is as follows:

|                                                     |                                                  | Millions of Euros |     
|---------------------------------------------------- | ------------------------------------------------ | ----------------- | ----
|
|
|COST                                                 |                                                  |                   |     
|Balance as of December 31, 2001                      |                                                  | 235               |     
|                                                     | Additions                                        |                   |    
|                                                     | Retirements or reductions                        |                   | (1  
|                                                     | Translation differences                          |                   | (36 
|                                                     | Change in method used to consolidate Gas Natural |                   |    
|                                                     | Other variations in scope of consolidation(1)    |                   |    
|                                                     | Reclassifications and other variations(2)        |                   | 22  
|                                                     |                                                  |                   |     
|Balance as of December 31, 2002                      |                                                  | 220               |     
|                                                     | Additions                                        |                   |    
|                                                     | Retirements or reductions                        |                   | (2  
|                                                     | Translation differences                          |                   | (5  
|                                                     | Variations in scope of consolidation             |                   | 1   
|                                                     | Reclassifications and other variations(2)(3)     |                   | 156 
|                                                     |                                                  |                   |     
|Balance as of December 31, 2003                      |                                                  | 370               |     
|                                                     |                                                  |                   |     
|ACCUMULATED DEPRECIATION, DEPLETION AND AMORTIZATION |                                                  |                   |     
|Balance as of December 31, 2001                      |                                                  | (52               | )   
|                                                     | Amortization                                     |                   | (22 
|                                                     | Retirements or reductions                        |                   |    
|                                                     | Translation differences                          |                   | 3   
|                                                     | Change in method used to consolidate Gas Natural |                   |    
|                                                     | Other variations in scope of consolidation(1)    |                   |    
|                                                     | Reclassifications and other variations           |                   | (1  
|                                                     |                                                  |                   |     
|Balance as of December 31, 2002                      |                                                  | (72               | )   
|                                                     |                                                  |                   |     
|                                                     | Amortization                                     |                   | (33 
|                                                     | Retirements or reductions                        |                   | 1   
|                                                     | Translation differences                          |                   | 3   
|                                                     | Other variations in scope of consolidation       |                   |    
|                                                     | Reclassifications and other variations(2)(3)     |                   | (131
|                                                     |                                                  |                   |     
|Balance as of December 31, 2003                      |                                                  | (232              | )   
|                                                     |                                                  |                   |     
|Net balance as of December 31, 2003                  |                                                  | 138               |     
|                                                     |                                                  |                   |     

---

F-32

---





(5) PROPERTY, PLANT AND EQUIPMENT

The
detail of the balances of property, plant and equipment accounts and of the related accumulated depreciation, depletion and provisions as of December 31, 2003 and 2002, and of
the variations therein is as follows:

|                                |                                                  | Millions of Euros |     
|------------------------------- | ------------------------------------------------ | ----------------- | ----
|
|COST                            |                                                  |                   |     
|Balance as of December 31, 2001 |                                                  | 2,331             |     
|                                | Additions                                        |                   | 63  
|                                | Retirements or reductions                        |                   | (15 
|                                | Translation differences                          |                   | (341
|                                | Change in method used to consolidate Gas Natural |                   | (217
|                                | Other variations in scope of consolidation(3)    |                   | (5  
|                                | Reclassifications and other variations           |                   | 50  
|                                |                                                  |                   |     
|Balance as of December 31, 2002 |                                                  | 1,866             |     
|                                |                                                  |                   |     
|                                | Additions                                        |                   | 150 
|                                | Retirements or reductions                        |                   | (27 
|                                | Translation differences                          |                   | (114
|                                | Variations in scope of consolidation(3)          |                   | 5   
|                                | Reclassifications and other variations           |                   | 55  
|                                |                                                  |                   |     
|Balance as of December 31, 2003 |                                                  | 1,935             |     
|                                |                                                  |                   |     
|                                |                                                  |                   |     

F-33

---



|ACCUMULATED DEPRECIATION, DEPLETION AND AMORTIZATION |                                                  |       |     |         |       |         |        |      |      |      |     |       |      |         |       
|---------------------------------------------------- | ------------------------------------------------ | ----- | --- | ------- | ----- | ------- | ------ | ---- | ---- | ---- | --- | ----- | ---- | ------- | ------
|Balance as of December 31, 2001                      |                                                  | (644  | )   | (10,581 | )     | (15,707 | )      | (310 | )    | (591 | )   | (426  | )    | (28,259 | )     
|                                                     | Depreciation and depletion                       |       | (41 | )       | (817  | )       | (1,322 | )    | (100 | )    | (20 | )     | (82  | )       | (2,382
|                                                     | Retirements or reductions                        |       | 4   |         | 70    |         | 72     |      | 15   |      | 21  |       | 10   |         | 192   
|                                                     | Net period provisions(5)                         |       |    |         | (3    | )       | (371   | )    | (28  | )    |    |       |     |         | (402  
|                                                     | Translation differences                          |       | 102 |         | 689   |         | 2,463  |      | 16   |      | 90  |       | 70   |         | 3,430 
|                                                     | Change in method used to consolidate Gas Natural |       | 53  |         | 2,002 |         |       |      |     |      | 11  |       | 55   |         | 2,121 
|                                                     | Other variations in scope of consolidation(3)    |       | 6   |         | 239   |         |       |      |     |      | 1   |       | (5   | )       | 241   
|                                                     | Reclassifications and other variations           |       | 21  |         | 337   |         | 79     |      | (10  | )    | (9  | )     | (363 | )       | 55    
|                                                     |                                                  |       |     |         |       |         |        |      |      |      |     |       |      |         |       
|Balance as of December 31, 2002                      |                                                  | (499  | )   | (8,064  | )     | (14,786 | )      | (417 | )    | (497 | )   | (741  | )    | (25,004 | )     
|                                                     |                                                  |       |     |         |       |         |        |      |      |      |     |       |      |         |       
|                                                     | Depreciation and depletion                       |       | (37 | )       | (665  | )       | (1,218 | )    | (29  | )    | (16 | )     | (60  | )       | (2,025
|                                                     | Retirements or reductions                        |       | 11  |         | 28    |         | 5      |      | 32   |      | 2   |       | 6    |         | 84    
|                                                     | Net period provisions(5)                         |       |    |         | (1    | )       | 199    |      |     |      |    |       |     |         | 198   
|                                                     | Translation differences                          |       | 41  |         | 401   |         | 2,577  |      | 21   |      | 82  |       | 17   |         | 3,139 
|                                                     | Variations in scope of consolidation(3)          |       | (2  | )       | (98   | )       | (323   | )    | (8   | )    | 2   |       | (3   | )       | (432  
|                                                     | Reclassifications and other variations           |       | (17 | )       | 119   |         | 46     |      | 3    |      | (1  | )     | 14   |         | 164   
|                                                     |                                                  |       |     |         |       |         |        |      |      |      |     |       |      |         |       
|Balance as of December 31, 2003                      |                                                  | (503  | )   | (8,280  | )     | (13,500 | )      | (398 | )    | (428 | )   | (767  | )    | (23,876 | )     
|                                                     |                                                  |       |     |         |       |         |        |      |      |      |     |       |      |         |       
|Net balance at 12/31/03(6)                           |                                                  | 1,432 |     | 5,685   |       | 10,786  |        | 99   |      | 217  |     | 1,252 |      | 19,471  |       
|                                                     |                                                  |       |     |         |       |         |        |      |      |      |     |       |      |         |       

---

F-34

---



The balances of nondepreciable assets, i.e. land and construction in progress, amounted to €728 million and
€1,125 million, respectively, in 2003. The land amounts were included under the "Land, Buildings and Structures" caption in the foregoing table, and the amounts relating to
construction in progress were recorded under the "Machinery, Plant and Equipment" (€45 million), "Investments in Areas with Reserves" (€400 million),
"Other Exploration Costs" (€48 million) and "Other Tangible Fixed Assets" (€632 million) captions.

€6.801 million
and €6,966 million of the property, plant and equipment had been fully depreciated as of December 31, 2003 and 2002,
respectively.

On
December 31, 1996, most of the Spanish REPSOL YPF Group companies revalued their property, plant and equipment pursuant to Royal Decree-Law 7/1996 and paid the
one-time 3% tax. Some of the Group companies had previously revalued their assets pursuant to other enabling legislation. The 1996 revaluation was generally carried out by applying the
maximum coefficients authorized by the aforementioned Royal Decree-Law with the 40% reduction.

The
accounts affected by the revaluation pursuant to Royal Decree-Law 7/1996 and the related effect, net of depreciation, as of December 31, 2003 and 2002, are as
follows:

Millions of EurosBalance at
12/31/02

Additions

Variations in
the scope of
consolidation

Balance at
12/31/03Land, buildings and other structures

64

(2
)
1

63Machinery, plant and equipment

116

(18
)
5

103Investments in oil and gas exploration and productionInvestments in areas with oil reserves

1





1Transport equipment

1



(1
)
Other tangible fixed assets

1





1183

(20
)
5

168


The
revaluations increased the net values of the property, plant and equipment by €1,496 million. The effect in shareholders' equity of the remaining undepreciated
balance, net of minority interests, included in the accompanying consolidated balance sheets as of December 31, 2003 and 2002, amounted to €168 million and
€183 million, respectively.

F-35

---



The
aforementioned revaluations also increased the period depreciation charge, net of the portion attributable to minority interests, by €20 million,
€31 million and €42 million in 2003, 2002 and 2001, respectively.

The
"Property, Plant and Equipment" caption includes investments by the REPSOL YPF Group in administrative concessions amounting to €77 million and
€82 million as of December 31, 2003 and 2002, respectively. The assets subject to the concessions must be returned to the Spanish State in good working order between 2004
and 2050.

Approximately
€13,709 million and €15,266 million of the Group's total net property, plant and equipment as of December 31, 2003 and
2002, respectively, are located outside Spain.

In
2003 REPSOL YPF released €275 million of the allowance for diminution in fixed asset value and in 2002 and 2001 recorded a provision of
€410 million and €655 million, respectively, in this connection. The provision to release of this allowance arose from the comparison of the market value
or the discounted future cash flows, as appropriate, from the proved and unproved oil and gas reserves (the unproved reserves are subject to a risk factor) with the net book values of the assets
relating thereto (see Note 18).

REPSOL
YPF has insured all the normal industrial risks to which its property, plant and equipment are subject.

F-36

---



(6) INVESTMENTS IN AFFILIATES AND OTHER FINANCIAL ASSETS

The
detail of the balances of this caption as of December 31, 2003 and 2002, is as follows:

|                            |                                                     | Millions of Euros                              
|--------------------------- | --------------------------------------------------- | -----------------------------------------------
|
|1. Investments in companies |                                                     |                                                
|                            | Holdings in companies carried by the equity method: |                                                
|                            |                                                     | Enagas                                         
|                            |                                                     | Compañía Logística de Hidrocarburos CLH, S.A.  
|                            |                                                     | Atlantic LNG Company of Trinidad & Tobago      
|                            |                                                     | Petroken Petroquímica Ensenada, S.A.           
|                            |                                                     | PBB Polisur, S.A.                              
|                            |                                                     | Oleoductos del Valle, S.A.                     
|                            |                                                     | Atlantic LNG 2/3 Company of Trinidad & Tobago  
|                            |                                                     | Transierra, S.A.                               
|                            |                                                     | Terminales Marítimos Patagónicos, S.A. (Termap)
|                            |                                                     | Dynasol Elastómeros, S.A. de CV                
|                            |                                                     | Terminales Canarios, S.L.                      
|                            |                                                     | Sociedad de Gas de Euskadi, S.A.               
|                            |                                                     | Asfaltos Españoles, S.A.                       
|                            |                                                     | Repsol Bronderslev A/S                         
|                            |                                                     | Oleoducto Trasandino Argentina, S.A.           
|                            |                                                     | Gasoducto del Pacífico (Argentina), S.A.       
|                            |                                                     | Oleoducto Trasandino Chile, S.A.               
|                            |                                                     | Oiltanking Ebytem, S.A.                        
|                            |                                                     | Hinia, S.A.                                    
|                            |                                                     | Gasolineras Prats, S.A.                        
|                            |                                                     | Ángel Muñoa, S.L.                              
|                            |                                                     | Gestión de Puntos de Venta, S.A.GESPEVESA     
|                            |                                                     | Societat Catalana de PetrolisPETROCAT         
|                            |                                                     | Autoclub Repsol, S.L.                          
|                            |                                                     | Transportadora Subrasileira de Gas             
|                            |                                                     | Gas Aragón, S.A.                               
|                            |                                                     | Torre Marenostrum, S.L.                        
|                            |                                                     | Other companies carried by the equity method   
|                            |                                                     |                                                
|                            |                                                     | 577                                            
|                            |                                                     |                                                
|                            |                                                     |                                                

F-37

---



|Long-term investment securities (at cost). Equity securities: |  |                                          |  |                                  
|------------------------------------------------------------- |  | ---------------------------------------- |  | ---------------------------------
|                                                              |  | TermogauchaUsina Termelétrica, S.A.     |  | 21                               
|                                                              |  | Oleoductos de Crudos Pesados (OCP), Ltd. |  | 19                               
|                                                              |  | Gasoducto del Pacífico (Chile), S.A.     |  | 11                               
|                                                              |  | Polymed                                  |  |                                 
|                                                              |  | Proyectos Integrados Energéticos, S.A.   |  |                                 
|                                                              |  | Other companies                          |  | 20                               
|                                                              |  |                                          |  |                                  
|                                                              |  | 71                                       |  | 86                               
|                                                              |  |                                          |  | Total investments in companies   
|                                                              |  |                                          |  |                                  
|2. Other financial investments                                |  |                                          |  |                                  
|                                                              |  | Long-term financial investments          |  | 498                              
|                                                              |  | Long-term guarantees and deposits        |  | 40                               
|                                                              |  | Other financial investments              |  | 275                              
|                                                              |  |                                          |  |                                  
|                                                              |  |                                          |  | Total other financial investments
|                                                              |  |                                          |  |                                  
|                                                              |  | Total financial investments              |  | 1,461                            
|                                                              |  |                                          |  |                                  

F-38

---





(6) INVESTMENTS IN AFFILIATES AND OTHER FINANCIAL ASSETS

The
variations in long-term financial investments in 2002 and 2003 were as follows:

|                                                 |  | Millions of Euros |  
|------------------------------------------------ |  | ----------------- | -
|
|Balance as of December 31, 2001                  |  | 820               |  
|Investment(1)                                    |  | 20                |  
|Retirements or reductions(2)                     |  | (30               | )
|Net period provisions                            |  | (6                | )
|Change in method used to consolidate Gas Natural |  | (86               | )
|Other variations in scope of consolidation(3)    |  | 118               |  
|Income of investees(4)                           |  | (35               | )
|Dividends distributed                            |  | (62               | )
|Translation differences                          |  | (143              | )
|Reclassifications and other variations           |  | 2                 |  
|                                                 |  |                   |  
|Balance as of December 31, 2002                  |  | 598               |  
|                                                 |  |                   |  
|Investment(1)                                    |  | 76                |  
|Retirements or reductions(2)                     |  | (16               | )
|Net period provisions                            |  | (21               | )
|Variations in scope of consolidation(3)          |  | 10                |  
|Income of investees(4)                           |  | 146               |  
|Dividends distributed                            |  | (71               | )
|Translation differences                          |  | (45               | )
|Reclassifications and other variations           |  | (29               | )
|                                                 |  |                   |  
|Balance as of December 31, 2003                  |  | 648               |  
|                                                 |  |                   |  

---



F-39

---









The
salient information as of December 31, 2003, on the companies listed in the foregoing table of equity securities with an individual cost per books of more than
€4 million is as follows:

|                                            |  |       |   | Millions of Euros | 
|------------------------------------------- |  | ----- | - | ----------------- | 
|
|Oleoductos de Crudos Pesados (OCP), Ltd.(1) |  | 29.66 | % | 79.8              | 
|TermogaúchaUsina Termelétrica, S.A.(2)     |  | 26.00 | % | 60.8              | 
|Gasoducto del Pacífico Chile(3)             |  | 8.67  | % | 109.4             | 

---

The
"Long-Term Financial Investments" caption relates mainly to loans granted to companies consolidated by the proportional integration method which were not eliminated in
consolidation, as indicated in Note 1.b., and loans to nonconsolidated companies. These investments earned average interest of 5.06% and 4.03% in 2003 and 2002, respectively. This caption
includes €144 million

F-40

---



corresponding
to cash advances related to the swap transaction described in Note 23 "Interest rate options".

As
of December 31, 2003 and 2002, these financial investments mature over the next five years as follows:

Millions of EurosMATURING IN2003

20022003



4,270
(1)2004

5,031
(1)
522005

44

212006

56

252007

5

122008

3

3Subsequent years

705

5075,844

4,890


---

F-41

---



(7) GOODWILL ARISING ON CONSOLIDATION

The
detail, by investee, of the "Goodwill" caption as of December 31, 2003 and 2002, is as follows:

|                                                              |                                                           | Millions of Euros
|------------------------------------------------------------- | --------------------------------------------------------- | -----------------
|
|Companies consolidated by the global integration method       |                                                           |                  
|                                                              | YPF, S.A.                                                 |                  
|                                                              | Empresas Lipigas, S.A.                                    |                  
|                                                              | Repsol YPF Comercial del Perú, S.A.                       |                  
|                                                              | Refinería La Pampilla, S.A.                               |                  
|                                                              | Duragas, S.A.                                             |                  
|                                                              | Repsol YPF Gas, S.A.                                      |                  
|                                                              | Repsol YPF Distribuidora, S.A.                            |                  
|Companies consolidated by the proportional integration method |                                                           |                  
|                                                              | Refap, S.A.                                               |                  
|                                                              | Gas Natural SDG, S.A.                                     |                  
|                                                              | Buenergía Gas & Power, Ltd.                               |                  
|                                                              | Compañía Distribuidora de Gas do Río de Janeiro           |                  
|                                                              | Gas Natural, S.A. ESP                                     |                  
|                                                              | Ceg Río, S.A.                                             |                  
|                                                              | Comercializadora Metrogás, S.A. de C.V.                   |                  
|                                                              | Global Companies LLC                                      |                  
|                                                              | Refinaria de Petróleos de Manguinhos, S.A. y subsidiarias |                  
|                                                              | Refinerías del Norte, S.A.                                |                  
|                                                              | Gasoriente, S.A. ESP                                      |                  
|                                                              | Gas Natural Navarra, S.A.                                 |                  
|Companies carried by the equity method                        |                                                           |                  
|                                                              | PBB Polisur, S.A.                                         |                  
|                                                              | Sucar, S.A.                                               |                  
|                                                              | Limagas, S.A.                                             |                  
|                                                              |                                                           |                  
|                                                              |                                                           | 2,496            
|                                                              |                                                           |                  

F-42

---



The
variations in 2003 and 2002 in this caption in the accompanying consolidated balance sheets were as follows:

|                  |                                                      | Millions of Euros |     
|----------------- | ---------------------------------------------------- | ----------------- | ----
|
|Beginning balance |                                                      | 2,934             |     
|                  | Additions(1)                                         |                   | 152 
|                  | Change in the method used to consolidate Gas Natural |                   |    
|                  | Other variations in scope of consolidation           |                   | 3   
|                  | Amortization(2)                                      |                   | (174
|                  | Retirements                                          |                   | (5  
|                  | Translation differences(3)                           |                   | (405
|                  | Reclassifications and other variations               |                   | (9  
|                  |                                                      |                   |     
|Ending balance    |                                                      | 2,496             |     
|                  |                                                      |                   |     

---



F-43

---



(8) DEFERRED EXPENSES

The
detail of the balances of this caption in the accompanying consolidated balance sheets as of December 31, 2003 and 2002, and of the variations therein in the years then ended
is as follows:

|                                |                                                  | Millions of Euros |    
|------------------------------- | ------------------------------------------------ | ----------------- | ---
|
|Balance as of December 31, 2001 |                                                  | 113               |    
|                                | Capitalized costs(1)                             |                   | 5  
|                                | Amortization                                     |                   | (16
|                                | Retirements                                      |                   | (1 
|                                | Change in method used to consolidate Gas Natural |                   |   
|                                | Other variations in scope of consolidation       |                   |   
|                                | Translation differences                          |                   | (28
|                                | Reclassifications and other variations(2)        |                   | 1  
|                                |                                                  |                   |    
|Balance as of December 31, 2002 |                                                  | 74                |    
|                                | Capitalized costs                                |                   | 3  
|                                | Amortization                                     |                   | (14
|                                | Retirements                                      |                   | (1 
|                                | Variations in scope of consolidation             |                   |   
|                                | Translation differences                          |                   | (2 
|                                | Reclassifications and other variations(2)        |                   | 1  
|                                |                                                  |                   |    
|Balance as of December 31, 2003 |                                                  | 61                |    
|                                |                                                  |                   |    

---



F-44

---



(9) INVENTORIES

The
detail of the "Inventories" caption as of December 31, 2003 and 2002, is as follows:

|     |  |                                    |  | Millions of Euros
|---- |  | ---------------------------------- |  | -----------------
|
|2003 |  | Crude oil and natural gas          |  | 699              
|     |  | Finished and semifinished products |  | 1,007            
|     |  | Supplies and other inventories     |  | 444              
|     |  |                                    |  |                  
|     |  |                                    |  | 2,150            
|     |  |                                    |  |                  
|2002 |  | Crude oil and natural gas          |  | 737              
|     |  | Finished and semifinished products |  | 1,100            
|     |  | Supplies and other inventories     |  | 297              
|     |  |                                    |  |                  
|     |  |                                    |  | 2,134            
|     |  |                                    |  |                  

Royal
Decree 2111/1994, which came into force on December 8, 1994, regulates the obligation to maintain minimum safety reserves of oil products and also created
Corporación de Reservas Estratégicas de Productos Petrolíferos. The Royal Decree defines who must maintain these safety reserves and the quantity thereof,
specifying that they can be calculated at consolidated level. In this respect, as of December 31, 2003, the REPSOL YPF Group had met the minimum safety reserve requirements established by the
Royal Decree through the Spanish companies included in the Group. Also, in accordance with current legislation (Royal Decree 1085/1992), Repsol Butano, S.A. must have stored, and does have stored the
necessary LPG inventories to ensure that demand for gas can be met for a period of 30 days.

REPSOL
YPF's product purchase and sale futures as of December 31, 2003 and 2002, are disclosed in Note 23.

(10) SHORT-TERM FINANCIAL INVESTMENTS

The
detail of this caption as of December 31, 2003 and 2002, is as follows:

Millions of Euros2003

2002Temporary cash investments

5,001

4,262Accrued interest

30

8TOTAL

5,031

4,270


The
balance of this caption relates basically to surpluses deposited at finance entities. These investments earned interest of approximately 2.50% and 3.42% in 2003 and 2002,
respectively.

As
of December 31, 2002, the balance also included €17 million representing 6.79% relating to the net worth of CLH, for which there was a sale commitment at
that date (see Note 1.f).

F-45

---





(11) SHAREHOLDERS' EQUITY

The
detail of the balances of this caption as of December 31, 2001, 2002 and 2003, and of the variations therein in the years then ended is as follows:

|                                                     |                        |       |   |       |   | Other Reserves of the
Parent Company |    |   |   |   |   |       |    |       |       |        |  
|---------------------------------------------------- | ---------------------- | ----- | - | ----- | - | ------------------------------------ | -- | - | - | - | - | ----- | -- | ----- | ----- | ------ | -
|
|
|Balance as of December 31, 2000                      |                        | 1,221 |   | 6,428 |   | 224                                  |    | 3 |   | 2 |   | 1,109 |    | 3,397 |       | 562    |  
|Distribution of 2000 income:                         |                        |       |   |       |   |                                      |    |   |   |   |   |       |    |       |       |        |  
|                                                     | Legal reserve          |       |  |       |  |                                      | 20 |   |  |   |  |       |   |       |      |        | 
|                                                     | Interim dividend       |       |  |       |  |                                      |   |   |  |   |  |       |   |       |      |        | 
|                                                     | Supplementary dividend |       |  |       |  |                                      |   |   |  |   |  |       |   |       |      |        | 
|                                                     | Voluntary reserves     |       |  |       |  |                                      |   |   |  |   |  |       | 39 |       | 1,760 |        | 
|Translation differences (foreign currency) and other |                        |      |   |      |   |                                     |    |  |   |  |   |      |    | 21    |       | (1,016 | )
|Net income for the year                              |                        |      |   |      |   |                                     |    |  |   |  |   |      |    |      |       |       |  
|Interim dividend                                     |                        |      |   |      |   |                                     |    |  |   |  |   |      |    |      |       |       |  
|                                                     |                        |       |   |       |   |                                      |    |   |   |   |   |       |    |       |       |        |  
|Balance as of December 31, 2001                      |                        | 1,221 |   | 6,428 |   | 244                                  |    | 3 |   | 2 |   | 1,148 |    | 5,178 |       | (454   | )
|                                                     |                        |       |   |       |   |                                      |    |   |   |   |   |       |    |       |       |        |  

|                                                     |                        |       |   |       |   | Other Reserves of the
Parent Company |   |   |   |   |   |       |       |       |      |        |  
|---------------------------------------------------- | ---------------------- | ----- | - | ----- | - | ------------------------------------ | - | - | - | - | - | ----- | ----- | ----- | ---- | ------ | -
|
|
|Balance as of December 31, 2001                      |                        | 1,221 |   | 6,428 |   | 244                                  |   | 3 |   | 2 |   | 1,148 |       | 5,178 |      | (454   | )
|Distribution of 2001 income:                         |                        |       |   |       |   |                                      |   |   |   |   |   |       |       |       |      |        |  
|                                                     | Legal reserve          |       |  |       |  |                                      |  |   |  |   |  |       |      |       |     |        | 
|                                                     | Interim dividend       |       |  |       |  |                                      |  |   |  |   |  |       |      |       |     |        | 
|                                                     | Supplementary dividend |       |  |       |  |                                      |  |   |  |   |  |       |      |       |     |        | 
|                                                     | Voluntary reserves     |       |  |       |  |                                      |  |   |  |   |  |       | 1,607 |       | (839 | )      | 
|Translation differences (foreign currency) and other |                        |      |   |      |   |                                     |   |  |   |  |   |      |       | (49   | )    | (2,672 | )
|Net income for the year                              |                        |      |   |      |   |                                     |   |  |   |  |   |      |       |      |      |       |  
|Interim dividend                                     |                        |      |   |      |   |                                     |   |  |   |  |   |      |       |      |      |       |  
|                                                     |                        |       |   |       |   |                                      |   |   |   |   |   |       |       |       |      |        |  
|Balance as of December 31, 2002                      |                        | 1,221 |   | 6,428 |   | 244                                  |   | 3 |   | 2 |   | 2,755 |       | 4,290 |      | (3,126 | )
|                                                     |                        |       |   |       |   |                                      |   |   |   |   |   |       |       |       |      |        |  

F-46

---





|                                                     |                        | Millions of Euros |  
|---------------------------------------------------- | ---------------------- | ----------------- | -
|
|
|Balance as of December 31, 2002                      |                        | 1,221             |  
|Distribution of 2002 income:                         |                        |                   |  
|                                                     | Legal reserve          |                   | 
|                                                     | Interim dividend       |                   | 
|                                                     | Supplementary dividend |                   | 
|                                                     | Voluntary reserves     |                   | 
|Translation differences (foreign currency) and other |                        |                  |  
|Net income for the year                              |                        |                  |  
|Interim dividend                                     |                        |                  |  
|                                                     |                        |                   |  
|Balance as of December 31, 2003                      |                        | 1,221             |  
|                                                     |                        |                   |  

Capital stock

As
of December 31, 2003, the capital stock consisted of 1,220,863,463 fully subscribed and paid shares of €1 par value each, all listed on the Spanish (continuous
market), New York and Buenos Aires Stock Exchanges.

At
the date of the last General Shareholder's Meeting, on April 4, 2003, the most significant holding in REPSOL YPF, S.A. are as follows:

Percentage
of OwnershipCAIXA

10.17
(1)BBVA

8.17Repinves

5.63
(2)Pemex

4.81


---

According
to the latest information available to the Company, BBVA has reduced its holding to 5.32%.

F-47

---



REPSOL
YPF, S.A.'s bylaws limit the maximum number of votes that any single shareholder or companies belonging to the same Group may cast at the Shareholders' Meeting to 10% of the
voting stock.

On
April 21, 2002, the Shareholders' Meeting resolved to:



As
of December 31, 2003, these authorizations had not been used.

Paid-in surplus

The
revised Corporations Law expressly permits the use of the additional paid-in surplus balance to increase capital and establishes no specific restrictions as to its use.

Legal reserve

Under
the revised Corporations Law, 10% of net income for each year must be transferred to the legal reserve until the balance of this reserve reaches at least 20% of capital stock. The
legal reserve can be used to increase capital, provided that the remaining reserve balance does not fall below 10% of the increased capital stock amount. Otherwise, until the legal reserve exceeds 20%
of capital stock, it can only be used to offset losses, provided that sufficient other reserves are not available for this purpose.

This
reserve, in the case of REPSOL YPF, S.A.'s subsidiaries, is recorded under the "Reserves at Consolidated Companies" caption.

Revaluation reserve

The
balance of the "Revaluation Reserve Royal Decree-Law 7/1996" account can be used, free of tax, to offset recorded losses (both prior years? accumulated losses
and current year losses) or losses which might arise in the future, and to increase capital stock. From January 1, 2007, the balance of this account can be transferred to unrestricted reserves
provided the related monetary surplus has been realized. The surplus will be deemed to have been realized in respect of the portion on which depreciation has been taken for accounting purposes or when
the revalued assets have been transferred or retired from the accounting records.

If
this balance were used in a manner other than as provided for in Royal Decree-Law 7/1996, it would be subject to tax.

The
distribution of these reserves would give rise to tax credits for dividend double taxation.

F-48

---



This
reserve, in the case of REPSOL YPF, S.A.'s subsidiaries, is recorded under the "Reserves at Consolidated Companies" caption.

Dividends

The
2003, 2002 and 2001 interim dividends relate to the gross interim dividend per share distributed by REPSOL YPF, S.A. out of income in each of these years. In 2003 it amounted to
€244 million (€0.20 gross per share), in 2002 to €183 million (€0.15 gross per share) and in 2001 to €257
miilion (€0.21 gross per share).

The
2001 Shareholders' Meeting resolved to ratify the interim dividend distributed and to credit the net unallocated income to reserves.

The
final dividend approved by the Shareholders' Meeting of Repsol YPF, S.A. for 2002 amounted to €196 million (€0.16 gross per share).

The
proposal for the distribution of Repsol YPF, S.A.'s 2003 income, to be submitted for approval at the next Shareholders' Meeting, includes the distribution of a final dividend for
2003 of €244 million (gross €0.20 per share), payable on or after July 1, 2004.

Based
on the accounting statement prepared and its unused credit lines, as of the date on which the interim dividend was approved, Repsol YPF, S.A. had sufficient liquidity to distribute
the interim dividend pursuant to Articles 194.3 and 216 of the revised Corporations Law.

F-49

---



The
detail, by subgroup, of the balances of "Reserves at Consolidated Companies" and "Translation Differences" as of December 31, 2003, 2002 and 2001, is as follows:

|                                                |       | Millions of Euros |       
|----------------------------------------------- | ----- | ----------------- | ------
|
|Reserves in Consolidated Companies:             |       |                   |       
|Gas Natural Subgroup                            |       | 707               |       
|Repsol Exploración Subgroup                     |       | 575               |       
|Repsol Comercial Subgroup                       |       | 546               |       
|Repsol Petróleo Subgroup                        |       | 199               |       
|Petronor Subgroup                               |       | 105               |       
|Repsol Butano Subgroup                          |       | 211               |       
|YPF Subgroup                                    |       | 893               |       
|Repsol YPF Brasil Subgroup                      |       | 305               |       
|Repsol Química Subgroup                         |       | 41                |       
|Other subsidiaries and consolidated adjustments |       | 1,358             |       
|                                                |       |                   |       
|                                                | Total |                   | 4,940 
|                                                |       |                   |       
|Translation differences:                        |       |                   |       
|YPF Subgroup                                    |       | (3,641            | )     
|Repsol YPF Brasil Subgroup                      |       | (277              | )     
|Repsol Butano Subgroup                          |       | (150              | )     
|Gas Natural Subgroup                            |       | (118              | )     
|Repsol Exploración Subgroup                     |       | (65               | )     
|Other subsidiaries and consolidated adjustments |       | (399              | )     
|                                                |       |                   |       
|                                                | Total |                   | (4,650
|                                                |       |                   |       

The
"Reserves at Consolidated Companies" caption includes €1,168 million and €1,111 million of restricted reserves in 2003 and 2002,
respectively.

Following
is a detail of the Group companies whose shares were listed as of December 31, 2003:

|Company               |  | Number of
Shares
Listed |  | Percentage
of Capital
Stock
Listed |   | Stock Exchange            |  | Year-End
Value |  | Last
Quarter
Value |  | Currency       
|--------------------- |  | ----------------------- |  | ---------------------------------- | - | ------------------------- |  | -------------- |  | ------------------ |  | ---------------
|Repsol YPF, S.A.      |  | 1,220,863,463           |  | 100                                | % | Spanish continuous market |  | 15.46          |  | 14.84              |  | Euros          
|                      |  |                         |  |                                    |   | Buenos Aires              |  | 57.55          |  | 51.25              |  | Argentine Pesos
|                      |  |                         |  |                                    |   | New York                  |  | 19.55          |  | 17.72              |  | U.S. Dollars   
|Gas Natural SDG, S.A. |  | 447,776,028             |  | 100                                | % | Spanish continuous market |  | 18.55          |  | 16.99              |  | Euros          
|YPF                   |  | 393,312,793             |  | 100                                | % | New York                  |  | 37.02          |  | 32.87              |  | U.S. Dollars   
|                      |  |                         |  |                                    |   | Buenos Aires              |  | 109.00         |  | 95.85              |  | Argentine Pesos

F-50

---





(12) MINORITY INTERESTS

The
detail of this caption as of December 31, 2002 and 2003, is as follows:

|           |                  | Millions of Euros |      
|---------- | ---------------- | ----------------- | -----
|
|Equity in: |                  |                   |      
|           | Capital stock    |                   | 3,691
|           | Reserves         |                   |     
|           | Income(1)        |                   | 176  
|           | Interim dividend |                   | (176 
|           |                  |                   |      
|           |                  | 3,691             |      
|           |                  |                   |      

|           |                  | Millions of Euros |      
|---------- | ---------------- | ----------------- | -----
|
|Equity in: |                  |                   |      
|           | Capital stock    |                   | 3,575
|           | Reserves         |                   |     
|           | Income           |                   | 157  
|           | Interim dividend |                   | (157 
|           |                  |                   |      
|           |                  | 3,575             |      
|           |                  |                   |      

---

F-51

---



The
variations in this caption in 2002 and 2003 were as follows:

|                                                 |  | Millions of Euros |  
|------------------------------------------------ |  | ----------------- | -
|
|Balance as of December 31, 2001                  |  | 3,814             |  
|Change in method used to consolidate Gas Natural |  |                  |  
|Other variations in scope of consolidation       |  |                  |  
|Income for the period                            |  | 176               |  
|Dividends paid during the year                   |  | (176              | )
|Translation differences                          |  | (123              | )
|Reclassifications and other variations           |  |                  |  
|                                                 |  |                   |  
|Balance as of December 31, 2002                  |  | 3,691             |  
|                                                 |  |                   |  

|                                       |  | Millions of Euros |  
|-------------------------------------- |  | ----------------- | -
|
|Balance as of December 31, 2002        |  | 3,691             |  
|Variations in scope of consolidation   |  |                  |  
|Income for the period                  |  | 157               |  
|Dividends paid during the year         |  | (157              | )
|Translation differences                |  | (116              | )
|Reclassifications and other variations |  |                  |  
|                                       |  |                   |  
|Balance as of December 31, 2003        |  | 3,575             |  
|                                       |  |                   |  

---

F-52

---





Preferred shares

In
October 1997 the REPSOL YPF Group, through its subsidiary Repsol International Capital, issued preferred shares of this company amounting to US$ 725 million under the
following terms:



In
May and December 2001, Repsol International Capital launched two new issues of preferred shares for €1,000 million and
€2,000 million, respectively, with the following characteristics:



In
connection with these preferred share issues REPSOL YPF performed derivatives transactions (see Note 23).

F-53

---



(13) SUBSIDIES AND DEFERRED REVENUES

The
detail of the main items under this caption in the accompanying consolidated balance sheets as of December 31, 2003 and 2002, is as follows:

2003

2002Millions of EurosSubsidies receivedGas network construction

14

12Other subsidies

41

46Subtotal

55

58Deferred revenuesDeferred revenues on property, plant and equipment received for no consideration

8

9Revenues from new connections and branch lines

31

17Indemnities for the compulsory relocation of the gas network

19

14Positive exchange differences

163

76Other deferred revenues

60

88Subtotal

281

204Total

336

262


The
variations in this caption in 2003 and 2002 were as follows:

Subsidies

Other Deferred
Revenues

TotalMillions of EurosBalance as of December 31, 2001

515

362

877Financing received(1)

33

63

96Subsidies credited to income

(17
)
(12
)
(29
)Change in method used to consolidate Gas Natural

(365
)
(172
)
(537
)Other variations in scope of consolidation(2)

(102
)
(16
)
(118
)Translation differences



(49
)
(49
)Reclassifications and other variations

(6
)
28

22Balance as of December 31, 2002

58

204

262Financing received(1)

1

46

47Subsidies credited to income

(5
)
(16
)
(21
)Variations in scope of consolidation

2

8

10Translation differences



(16
)
(16
)Reclassifications and other variations

(1
)
55

54Balance as of December 31, 2003

55

281

336


---

F-54

---



(14) LONG-TERM LIABILITIES

The
detail of the balance of this caption as of December 31, 2003, 2002 and 2001, and of the variations therein in 2003, 2002 and 2001 is as follows:

|                                                                     |  | Pensions
Costs |   | Provision for
Labor Force
Restructuring |   | Dismantling
of
Fields |   | Commitments
and Contingent
Liabilities |   | Reversion
Reserves |   | Other
Provisions |   | Total |  
|-------------------------------------------------------------------- |  | -------------- | - | --------------------------------------- | - | --------------------- | - | -------------------------------------- | - | ------------------ | - | ---------------- | - | ----- | -
|
|Balance as of December 31, 2000                                      |  | 79             |   | 140                                     |   | 164                   |   | 433                                    |   | 38                 |   | 722              |   | 1,576 |  
|Period provisions charged to income(1)                               |  | 6              |   | 32                                      |   | 11                    |   | 68                                     |   | 4                  |   | 381              |   | 502   |  
|Allowance released with credit to income                             |  | (2             | ) | (1                                      | ) | (9                    | ) | (22                                    | ) |                   |   | (59              | ) | (93   | )
|Allowance released due to payment                                    |  | (29            | ) | (120                                    | ) | (11                   | ) | (1                                     | ) |                   |   | (105             | ) | (266  | )
|Variations in scope of consolidation                                 |  |               |   | (1                                      | ) | 3                     |   | (76                                    | ) |                   |   | (30              | ) | (104  | )
|Translation differences                                              |  | 2              |   |                                        |   | 7                     |   | (32                                    | ) |                   |   | (198             | ) | (221  | )
|Reclassifications and other variations in the scope of consolidation |  | 4              |   | 15                                      |   | 13                    |   | (21                                    | ) |                   |   | (8               | ) | 3     |  
|                                                                     |  |                |   |                                         |   |                       |   |                                        |   |                    |   |                  |   |       |  
|Balance as of December 31, 2001                                      |  | 60             |   | 65                                      |   | 178                   |   | 349                                    |   | 42                 |   | 703              |   | 1,397 |  
|Period provisions charged to income(1)                               |  | 41             |   | 16                                      |   | 24                    |   | 64                                     |   | 5                  |   | 300              |   | 450   |  
|Allowance released with credit to income                             |  | (1             | ) | (3                                      | ) | (67                   | ) | (16                                    | ) |                   |   | (79              | ) | (166  | )
|Allowance released due to payment                                    |  | (10            | ) | (24                                     | ) | (1                    | ) | (20                                    | ) | (2                 | ) | (79              | ) | (136  | )
|Change in method used to consolidate Gas Natural                     |  | (11            | ) |                                        |   |                      |   | (88                                    | ) |                   |   | (64              | ) | (163  | )
|Other variations in scope of consolidation                           |  |               |   |                                        |   |                      |   | 1                                      |   |                   |   | (18              | ) | (17   | )
|Translation differences                                              |  | (10            | ) | 1                                       |   | (16                   | ) | (38                                    | ) |                   |   | (176             | ) | (239  | )
|Reclassifications and other variations(2)                            |  |               |   | (38                                     | ) | 7                     |   | 9                                      |   | (11                | ) | 72               |   | 39    |  
|                                                                     |  |                |   |                                         |   |                       |   |                                        |   |                    |   |                  |   |       |  
|Balance as of December 31, 2002                                      |  | 69             |   | 17                                      |   | 125                   |   | 261                                    |   | 34                 |   | 659              |   | 1,165 |  
|Period provisions charged to income(1)                               |  | 27             |   | 1                                       |   | 22                    |   | 79                                     |   | 6                  |   | 384              |   | 519   |  
|Allowance released with credit to income                             |  |               |   |                                        |   |                      |   | (8                                     | ) |                   |   | (75              | ) | (83   | )
|Allowance released due to payment                                    |  | (5             | ) | (1                                      | ) | (1                    | ) | (14                                    | ) |                   |   | (52              | ) | (73   | )
|Variations in scope of consolidation                                 |  |               |   | 1                                       |   | 6                     |   | 10                                     |   |                   |   | 2                |   | 19    |  
|Translation differences                                              |  | (13            | ) |                                        |   | (9                    | ) | (1                                     | ) |                   |   | (53              | ) | (76   | )
|Reclassifications and other variations                               |  | (3             | ) | (6                                      | ) | 8                     |   | (1                                     | ) |                   |   | (15              | ) | (17   | )
|                                                                     |  |                |   |                                         |   |                       |   |                                        |   |                    |   |                  |   |       |  
|Balance as of December 31, 2003                                      |  | 75             |   | 12                                      |   | 151                   |   | 326                                    |   | 40                 |   | 850              |   | 1,454 |  
|                                                                     |  |                |   |                                         |   |                       |   |                                        |   |                    |   |                  |   |       |  

---

F-55

---



The "Other Provisions" caption includes mainly technical reserves for insurance, provisions for environmental contingencies, provisions for
litigation in progress and other provisions for future contingencies.

(15) TAX MATTERS

Repsol
YPF is taxed in Spain for corporate income tax purposes under the special consolidated tax regime in Tax Consolidation Group 6/80 of which Repsol YPF, S.A. is the controlling
company. This Group consisted of 69 companies in 2003, of which the major companies in terms of net sales were as follows: Repsol YPF, S.A., Repsol Petróleo, S.A., Repsol YPF Trading y
Transporte, S.A., Repsol
Química, S.A., Repsol Butano, S.A., Repsol Exploración, S.A., Repsol Exploración Murzuq, S.A., Repsol Exploración Argelia, S.A. and Repsol
Comercial de Productos Petrolíferos, S.A.

The
companies in the aforementioned Tax Consolidation Group jointly determine the taxable income of the Group, which is allocated among the companies in the Tax Group in accordance with
the criteria established by the ICAC (the Spanish regulatory agency for accounting matters) for the recording and determination of the individual tax charge.

The
breakdown of the deferred tax assets and liabilities as of December 31, 2003 and 2002, is as follows:

|                                                                                                     |  | 2003 |  | 2002
|---------------------------------------------------------------------------------------------------- |  | ---- |  | ----
|
|Deferred tax assets                                                                                  |  |      |  |     
|Provision for pension allowances                                                                     |  | 10   |  | 11  
|Provision for personnel restructuring plans                                                          |  | 14   |  | 19  
|Depreciation for accounting purposes in excess of depreciation for tax purposes                      |  | 29   |  | 42  
|Accounting basis for bad debt allowances in excess of tax basis                                      |  | 15   |  | 81  
|Tax credits (*)                                                                                      |  | 554  |  | 324 
|Provisions for other items                                                                           |  | 68   |  | 65  
|Other                                                                                                |  | 234  |  | 74  
|                                                                                                     |  |      |  |     
|                                                                                                     |  | 924  |  | 616 
|                                                                                                     |  |      |  |     
|Deferred tax liabilities                                                                             |  |      |  |     
|Accounting basis for depreciation of property in excess of tax basis                                 |  | 331  |  | 210 
|Deferred taxes arising from reinvestment of profit in new tangible assets                            |  | 48   |  | 62  
|Tax basis on financial expenses in excess of accounting basis as a consequence of hedging operations |  | 87   |  | 59  
|Other                                                                                                |  | 208  |  | 172 
|                                                                                                     |  |      |  |     
|                                                                                                     |  | 674  |  | 503 
|                                                                                                     |  |      |  |     

F-56

---



The
variations in the deferred tax assets and liabilities in 2003 and 2002 were as follows:

|                                                 |  | Deferred
tax assets |   | Deferred
tax liabilities |   | Net    |  
|------------------------------------------------ |  | ------------------- | - | ------------------------ | - | ------ | -
|
|Balance as of December 31, 2001                  |  | 694                 |   | (516                     | ) | 178    |  
|Decrease during the period                       |  | (1,257              | ) | 6                        |   | (1,251 | )
|Increase during the period                       |  | 1,457               |   | (165                     | ) | 1,292  |  
|Change in method used to consolidate Gas Natural |  | (108                | ) | 42                       |   | (66    | )
|Other variations in scope of consolidation       |  | 1                   |   | (25                      | ) | (24    | )
|Reclassifications and other variations           |  | (171                | ) | 155                      |   | (16    | )
|                                                 |  |                     |   |                          |   |        |  
|Balance as of December 31, 2002                  |  | 616                 |   | (503                     | ) | 113    |  
|Decrease during the period                       |  | (55                 | ) | 77                       |   | 22     |  
|Increase during the period                       |  | 390                 |   | (97                      | ) | 293    |  
|Variations in scope of consolidation             |  | 2                   |   | (141                     | ) | (139   | )
|Reclassifications and other variations           |  | (29                 | ) | (10                      | ) | (39    | )
|                                                 |  |                     |   |                          |   |        |  
|Balance as of December 31, 2003                  |  | 924                 |   | (674                     | ) | 250    |  
|                                                 |  |                     |   |                          |   |        |  

The
reconciliation of the consolidated income per books to the taxable income for 2003, 2002 and 2001 is as follows:

2003

2002

2001Millions of EurosIncome before income taxSpanish companies

899

1,675

1,396Foreign companies

2,379

1,175

1,1073,278

2,850

2,503Permanent differences

10

(46
)
1,542Timing differencesa) Arising in the year

302

104

260b) Arising in prior years

(669
)
(81
)
19Taxable income

2,921

2,827

4,324


F-57

---





The
following tables show the calculation of the corporate income tax expense for 2003, 2002 and 2001:

|                         |                                             | Millions of Euros |    
|------------------------ | ------------------------------------------- | ----------------- | ---
|
|
|Income before income tax |                                             | 811               |    
|Permanent differences    |                                             | (325              | )  
|                         |                                             |                   |    
|Adjusted income          |                                             | 486               |    
|                         |                                             |                   |    
|Gross tax                |                                             | 170               |    
|                         |                                             |                   |    
|Tax credits for:         |                                             |                   |    
|                         | Investment                                  |                   | (13
|                         | Dividends and international double taxation |                   | (45
|                         | Other                                       |                   | (37
|                         |                                             |                   |    
|Income tax expense       |                                             | 75                |    
|                         |                                             |                   |    

|                         |                                             | Millions of Euros |     
|------------------------ | ------------------------------------------- | ----------------- | ----
|
|
|Income before income tax |                                             | 1,484             |     
|Permanent differences    |                                             | 1,367             |     
|                         |                                             |                   |     
|Adjusted income          |                                             | 2,851             |     
|                         |                                             |                   |     
|Gross tax                |                                             | 998               |     
|                         |                                             |                   |     
|Tax credits for:         |                                             |                   |     
|                         | Investment                                  |                   | (279
|                         | Dividends and international double taxation |                   | (337
|                         | Other                                       |                   | 125 
|                         |                                             |                   |     
|Income tax expense       |                                             | 507               |     
|                         |                                             |                   |     

F-58

---



|                         |                                             | Millions of Euros |     
|------------------------ | ------------------------------------------- | ----------------- | ----
|
|
|Income before income tax |                                             | 1,218             |     
|Permanent differences    |                                             | (30               | )   
|                         |                                             |                   |     
|Adjusted income          |                                             | 1,188             |     
|                         |                                             |                   |     
|Gross tax                |                                             | 416               |     
|                         |                                             |                   |     
|Tax credits for:         |                                             |                   |     
|                         | Investment                                  |                   | (79 
|                         | Dividends and international double taxation |                   | (250
|                         | Other                                       |                   | (31 
|                         |                                             |                   |     
|Income tax expense       |                                             | 56                |     
|                         |                                             |                   |     

The
tax incentives generated in 2003 relate mainly to investment and reinvestment tax credits including, among others, tax credits of €0.1 million for investments
in environmental protection and €13 million for investments in research and development and technological innovation, and €2.5 million arising from
application of the provisions of Article 36 ter. of Corporate Income Tax Law 43/1995. The proceeds of the disposal will be invested by Tax Consolidation Group 6/80, of which Repsol YPF is the
controlling company, within the legally stipulated period. The full amount of these tax incentives is available for use in future years because insufficient tax payable was reported for 2003.

The
years open for tax audit in connection with the applicable taxes vary for the various consolidated companies, but generally are from 1998 to 2003.

The
varying interpretations which could be made of the tax regulations applicable to the companies' operations might give rise to contingent tax liabilities in the future which cannot be
objectively quantified at the present time. However, the directors of Repsol YPF consider that the consequences, which might arise therefore should not materially affect the consolidated financial
statements.

F-59

---



(16) LONG AND SHORT-TERM DEBT

The
detail of the loans and interest payable, mostly unsecured, as of December 31, 2003 and 2002, is as follows:

|                   |                               | Millions of Euros
|------------------ | ----------------------------- | -----------------
|
|
|FOREIGN CURRENCIES |                               |                  
|                   | Principal in U.S. dollars     |                  
|                   | Principal in other currencies |                  
|                   | Accrued interest              |                  
|                   |                               |                  
|                   |                               | Total            
|EUROS              |                               |                  
|                   | Principal                     |                  
|                   | Accrued interest              |                  
|                   |                               |                  
|                   |                               | Total            
|                   |                               |                  
|TOTAL              |                               | 4,369            
|                   |                               |                  

The
debt in Euros was converted to U.S. dollars substantially in full through exchange hedging transactions (see Note 23).

As
of December 31, 2003, the Repsol YPF Group had available the funds required to meet debt maturities through the end of 2005.

The
Group's long-term financing is divided between approximately 70% fixed-rate and approximately 30% floating-rate debt. Long-term
financing amounted to €6,454 million and €8,273 million as of December 31, 2003 and 2002, and bore average interest of 5.7% and 6.0%, respectively.

On
June 28, 2000, the Shareholders' Meeting authorized the Board of Directors to issue, at one or several times over a period of five years from the date of the resolution, up to
a maximum of €12,000 million of debentures, bonds or any similar securities, grouped together as issues, in euros or in other currencies, unsecured or secured in any way
including a mortgage guarantee, fully or partially exchangeable for existing shares of the Company or of other companies. The Board of Directors will establish the terms of each issue, in particular
the fixed or floating interest rate, the issue price, the ancillary rights included in the securities issued, the face value of each one, whether they are represented by single or multiple
certificates or by the book entry trading system, the form and term of redemption, and any other aspect of each issue, and may apply to the official stock exchanges and other competent bodies to list
the issued securities in accordance with current regulations.

This
authorization by the Shareholders' Meeting had not been used as of December 31, 2003.

Also,
on April 21, 2002, the Shareholders' Meeting resolved to empower the Company's Board of Directors, in the broadest terms, for a three-year period from the date
of the resolution, to issue corporate promissory notes under this or any other appropriate name, in accordance with one or several continuous or open-ended issue programs, with a maximum
nominal balance of the existing program or programs that may not at any time exceed an outstanding balance of €3,000 million. Within

F-60

---



the
aforementioned limit, the Board may freely establish the maximum nominal amount of each program and its characteristics, the means of representation of the securities, their possible nominal
amounts, maturities, clauses and interest rates, redemption and types and the other conditions applicable to each issue, and may apply for the securities to be listed on any official or OTC organized
market, and may perform any other acts that may be necessary or appropriate for the establishment or execution of the program or programs or for the issuance of the securities. In particular, the
Board of Directors may delegate all or any of the powers referred to in this resolution to its Management Committee.

On
January 29, 2003, the Board of Directors resolved to launch a corporate promissory note issuance program with a maximum outstanding balance of
€3,000 million. This program was cleared by and registered with the Spanish National Securities Market Commission (CNMV) on March 13, 2003. The outstanding balance
amounted to €129 million as of December 31, 2003.

As
of December 31, 2003 and 2002, the loans and interest payable matured as follows:

Millions of EurosDUE IN:2003

20022003



3,999
(1)2004

4,369
(1)
2,3402005

1,990

2,5352006

996

9292007

716

7812008

225

225Subsequent years

2,527

1,46310,823

12,272


---

In
general, financial debt agreements include the early maturity clauses usual in these types of agreements (significant adverse change, early maturity crossed with other loans, etc.).

Issues
of marketable securities, representing senior debt, by Repsol International Finance, BV, guaranteed by REPSOL YPF, S.A. for a total of €6,030 million,
contain certain clauses whereby the company undertakes to pay the liabilities at maturity and not to create encumbrances securing the assets of REPSOL YPF, S.A. in relation to these issues or to
future issues of debt securities.

In
the event of noncompliance, the custodian-trustee bank, at his sole discretion or at the request of the holders of at least one-fifth of the debentures, or pursuant to a
special resolution, can declare the debentures to be matured and payable.

Additionally
with respect to certain marketable debenture issues totaling €434 million, YPF, S.A. agreed to certain clauses including, inter alia, to pay all
amounts due on maturity, and to not establish liens or charges exceeding 15% of total consolidated assets. In the event of breach of any of the pacted clauses, the trustee or the holders of at least
25% of the total principal of the outstanding debentures may declare due and immediately payable the principal and accrued interest on all the debentures.

F-61

---



The
directors of Repsol YPF believe that at the date of this writing there are no reasons, nor will there foreseeably be any in the future, which will make it necessary to apply the
clauses providing for early maturity of the debt.

(17) REFUNDABLE DEPOSITS

This
caption relates basically to the deposits received by Repsol Butano, S.A. from the users of metal gas bottles, as authorized by the applicable legislation. These amounts are
refundable when the related contracts are cancelled.

The
variations in this caption in 2003 and 2002 were as follows:

Millions of Euros2003

2002Beginning balance

196

213Amounts received

3

3Change in the method used to consolidate Gas Natural



(14
)Other variations in scope of consolidation

1

Translation differences and other variations

(2
)
(6
)Ending balance

198

196


(18) REVENUES AND EXPENSES

The
foreign currency transactions in 2003, 2002 and 2001 were as follows:

Millions of EurosSpanish
Companies

Foreign
Companies

Total2003Purchases

14,309

2,869

17,178Sales

6,011

10,081

16,092Other transactions

120

1,317

1,4372002Purchases

7,479

3,902

11,381Sales

4,885

9,345

14,230Other transactions

250

1,235

1,4852001Purchases

11,402

5,707

17,109Sales

6,035

13,754

19,789Other transactions

601

7,040

7,641


F-62

---





The detail of the extraordinary revenues and expenses included in the accompanying consolidated statements of income for 2003, 2002 and 2001 is as follows:

|                                                                    |  | Millions of Euros
Revenues/(Expenses) |  
|------------------------------------------------------------------- |  | ------------------------------------- | -
|
|Extraordinary Expenses:                                             |  |                                       |  
|Labor force restructuring (Note 2.k)                                |  | (32                                   | )
|Losses on fixed assets                                              |  | (6                                    | )
|Variation in fixed asset provisions(1)                              |  |                                      |  
|Provision for commitments and contingent liabilities                |  | (69                                   | )
|Provisions for estimated losses(2)                                  |  | (318                                  | )
|Other extraordinary expenses(3)                                     |  | (147                                  | )
|                                                                    |  |                                       |  
|                                                                    |  | (572                                  | )
|Extraordinary Income:                                               |  |                                       |  
|Gains on fixed asset disposals(4)                                   |  | 13                                    |  
|Gains on disposals of shareholdings(5)                              |  | 76                                    |  
|Variation in fixed asset provisions(1)                              |  | 249                                   |  
|Subsidies and other deferred revenues transferred to income         |  | 5                                     |  
|Revenues from reversal of provisions for contingencies and expenses |  | 36                                    |  
|Other extraordinary revenues                                        |  | 39                                    |  
|                                                                    |  |                                       |  
|                                                                    |  | 418                                   |  
|                                                                    |  |                                       |  
|                                                                    |  | (154                                  | )
|                                                                    |  |                                       |  

---



F-63

---









(19) INFORMATION ON BOARD MEMBERS AND MANAGEMENT PERSONNEL





In accordance with Article 30 of the bylaws, the Company may pay compensation equal to 1.5% of its net income to its Board members each year, but this
amount can only be paid once the allocations to the legal reserve and other required allocations have been made and a dividend of at least 4% to the shareholders has been declared.

Under
the system established and approved by the Nominating and Compensation Committee, the amounts of the annual compensation earned by virtue of membership of each of the Group's
governing bodies are as follows:

Governing Bodies

EurosBoard of Directors

140,272Management Committee

140,272Audit and Control Committee

35,068Strategy, Investment and Compensation Committee

35,068Nominating and Compensation Committee

35,068


F-64

---



The
compensation earned in 2003 by the members of the Board of Directors in their capacity as such in connection with the above-mentioned bylaw-stipulated fees amounted to
€3.28 million, the detail being as follows:

|                           |  | Compensation for Membership of Governing Bodies
|-------------------------- |  | -----------------------------------------------
|
|Alfonso Cortina            |  | Unchanged                                      
|Enrique de Aldama          |  | Unchanged                                      
|Gonzalo Anes               |  | Unchanged                                      
|Ignacio Bayón              |  | Unchanged                                      
|Antonio Brufau             |  | Unchanged                                      
|Antonio Hernandez-Gil      |  | Unchanged                                      
|Juan Molins                |  | Unchanged                                      
|PMI Holdings               |  | Unchanged                                      
|Marcelino Oreja Aguirre    |  | Unchanged                                      
|Gregorio Villalabeitia     |  | Unchanged                                      
|Manuel González Cid        |  | Joined in April 2003                           
|Ramón Blanco Balín         |  | Joined in April 2003                           
|Carmelo de las Morenas     |  | Joined in July 2003                            
|Ricardo Fornesa            |  | Joined in October 2003                         
|José Vilarasau             |  | Removed in October 2003                        
|José Ignacio Goirigolzarri |  | Removed in April 2003                          

Additionally, the following should be noted:



The wages and salaries earned in 2003 by the Board members, for all the items, who had a labor relationship with or discharged executive duties in the Group
during the year, considering the Nominating of theConsejero Delegadosince April 2003, amounted to € 4.2 million,
corresponding €2.8 million and €1.4 million to the Chairman and theConsejero Delegado, respectively.

The
2001-2005 Incentive Plan and the 2002-2006 Incentive Plan, which began in exercise 2001 and 2002, respectively, were canceled early through the payment of a
non-accumulable compensatory amount not tied to the price of Repsol YPF, S.A. shares. The amount paid in this connection was €1.2 million for the executive
directors, and was recorded under the "Extraordinary Expenses" caption in the consolidated statement of income. Additionally, the Board members who perform executive duties are included in the
2003-2006 Incentive Plan (see section c. of this Note). No amount was paid in this connection in 2003, since this incentive pay consists of an additional variable compensation
amount to be received in 2007 subject to the following conditions: (i) the officer must remain in the

F-65

---



Group
until that date and (ii) certain objectives linked to those included in the Group's 2003-2007 Strategic Plan must be met.



The compensation earned in 2003 by the members of the Board of Directors of the parent companies in their capacity as directors of other Group, multigroup or
associated companies amounted to €1.01 million, the detail being as follows:

YPF

Gas Natural

Enagas

TOTALAlfonso Cortina

87,301





87,301Antonio Hernández-Gil

35,452





35,452Antonio Brufau



310,000

67,600

377,600Gregorio Villalabeitia



110,000



110,000Ramón Blanco

63,371

210,000

53,000

326,371Carmelo de las Morenas



63,637



63,637




The Board members are covered by the same third-party liability insurance policy as that covering all the directors and management personnel of the Repsol YPF
Group.



Following
is a disclosure of the transactions performed with Directors, as required by Law 26/2003, which amended Securities Market Law 24/1988, and the revised Spanish Corporations Law,
in order to reinforce the transparency of listed corporations.

The
Directors of Repsol YPF did not perform any transaction other than in the ordinary course of operations or other than on an arm's-length basis with the Company or with Group
companies in 2003.

Except
as detailed in Exhibit II, none of the Directors have holdings or perform duties in companies engaging in an activity which is identical, similar or supplementary to the
activity that constitutes the corporate purpose of Repsol YPF, and none of them have engaged, for their own account or for the account of others, in activities which are identical, similar or
complementary to the activity that constitutes the corporate purpose of Repsol YPF.





The information included in this section relates to the 17 persons who are or were part of the Group's management team in 2003, excluding those who are also
members of the Board of Directors of the controlling company, since the information relating to them was included in section a) of this Note.



Management Personnel receive a fixed compensation and a variable objective-based compensation, which is calculated as a certain percentage of the fixed
compensation.

F-66

---



The
total compensation earned by management personnel amounted to €13.0 million in 2003, the detail being as follows:

Concept

EurosSalary

4,973,226Directors' fees(1)

432,433Variable compensation(2)

7,034,304Compensation in kind

535,202


---



As discussed in Note 23, there are several loyalty programs for Group management personnel consisting of a medium- and long-term incentive
payment, the purpose of which is to strengthen the links of management personnel to the interests of shareholders, while favoring the continuation in the Group of the most outstanding personnel in the
context of an increasingly competitive labor market.





The Group pays deferred compensation to its management personnel which is intended to compensate their loyalty to the Repsol YPF Group. For each employee included
in this bonus system, the Group records a provision for a certain percentage of their fixed compensation. The bonus is paid only if one of the following conditions is met: (i) the employee
serves in the Group as an officer for at

F-67

---



least
30 years, or (ii) the employee retires, is terminated without cause or leaves the Company at the Company's request without cause for termination. The amount recorded in this
connection was €0.7 million in 2003.



The contributions made by the Group in 2003 to the mixed defined-contribution plans for management personnel adapted to the Pension Plan and Fund Law (see
Note 2.l) plus the life and accident insurance premiums paid totaled €0.4 million.

Management
personnel are covered by the same third-party liability insurance policy as that covering all the directors and management personnel of the Repsol YPF Group.



As of December 31, 2003, the Company had granted loans to its management personnel amounting to €1.41 million, which bore average
interest of 2.975% in 2003. All these loans were granted before 2003.

(20) AVERAGE HEADCOUNT

The
average number of REPSOL YPF Group employees in 2003, 2002 and 2001, by category, was as follows:

Average Number of Employees2003(*)

2002

2001Managers

278

317

391Senior technicians

1,720

3,071

3,000Technicians

11,087

10,387

12,930Administrative staff

2,461

2,669

4,478Manual and auxiliary workers

15,098

16,158

16,71130,644

32,602

37,510


---

The
Group had a total of 31,121, 30,110 and 35,452 employees as of December 31, 2003, 2002 and 2001, respectively.

(21) BUSINESS SEGMENT DATA

Repsol
YPF operates in four main business segments: exploration and production, refining and marketing, chemicals and gas and electricity.

F-68

---





The
detail of operating revenues and income by line of business for 2003, 2002 and 2001 is as follows:

Millions of Euros2003

2002

2001Operating revenues:Exploration and production

6,419

5,580

7,305Refining and marketing(*)

32,480

31,289

32,491Chemicals

2,240

2,109

2,355Natural gas and electricity

1,486

3,110

5,900Consolidation and other adjustments

(5,419
)
(5,598
)
(4,398
)37,206

36,490

43,653


---

Millions of Euros2003

2002

2001Operating income:Exploration and production

2,352

1,785

2,557Refining and marketing

1,196

854

1,406Chemicals

155

97

(55
)Natural gas and electricity

212

633

1,062Corporate and other

(55
)
(46
)
(50
)3,860

3,323

4,920


The
identifiable net assets assigned to each line of business as of December 31, 2003, 2002 and 2001, are shown below. These assets are those which can be directly associated with
the related lines of business.

Millions of Euros2003

2002

2001Exploration and production

13,370

15,605

19,756Refining and marketing

13,257

12,276

12,735Chemicals

2,561

2,817

2,904Natural gas and electricity

3,140

2,618

11,189Corporate and other

5,705

4,748

4,85538,033

38,064

51,439


F-69

---



The
detail, by line of business, of the investments made in 2003, 2002 and 2001 is as follows:

|                            |  | Millions of Euros
|--------------------------- |  | -----------------
|
|2003                        |  |                  
|Exploration and production  |  | 1                
|Refining and marketing      |  | 28               
|Chemicals                   |  |                 
|Natural gas and electricity |  | 37               
|Corporate and other         |  | 14               
|                            |  |                  
|                            |  | 80               
|                            |  |                  
|2002                        |  |                  
|Exploration and production  |  | 3                
|Refining and marketing      |  | 23               
|Chemicals                   |  | 1                
|Natural gas and electricity |  | 17               
|Corporate and other         |  | 13               
|                            |  |                  
|                            |  | 57               
|                            |  |                  
|2001                        |  |                  
|Exploration and production  |  | 3                
|Refining and marketing      |  | 43               
|Chemicals                   |  | 2                
|Natural gas and electricity |  | 32               
|Corporate and other         |  | 11               
|                            |  |                  
|                            |  | 91               
|                            |  |                  

The detail, by business segment, of the period depreciation, depletion and amortization in 2003, 2002 and 2001 is as follows:

Millions of Euros2003

2002

2001Exploration and production

1,290

1,440

1,500Refining and marketing

585

637

780Chemicals

172

173

141Natural gas and electricity

92

279

486Other

106

97

642,245

2,626

2,971


Revenues
from sales abroad amounted to approximately €13,453 million, €12,800 million and €19,749 million in 2003,
2002 and 2001, respectively.

F-70

---







The revenues, operating income, investments and assets relating to the operations carried on by the REPSOL YPF Group abroad represent 34.6%,78.8%, 65.7% and
58.2%, respectively, of the total figures of the consolidated Group in 2003, 32.7%, 66.1%, 63.5% and 57.9%, respectively, in 2002 and 35.1%, 62.1%, 58.3% and 59.3%, respectively, in 2001. The table
below shows the variations in 2003, 2002 and 2001 in the main financial aggregates by geographical area.

Millions of Euros2003

2002

2001OPERATING REVENUESSpain

24,346

24,541

28,313Argentina

5,940

5,415

8,621Rest of Latin America

4,382

4,115

3,501Rest of the world

2,538

2,419

3,21837,206

36,490

43,653OPERATING INCOMESpain

820

1,128

1,863Argentina

2,198

1,573

2,104Rest of Latin America

531

219

261Rest of the world

311

403

6923,860

3,323

4,920INVESTMENTSSpain

1,325

1,005

2,006Argentina

692

791

1,342Rest of Latin America

1,709

857

1,242Rest of the world

135

100

2263,861

2,753

4,816TOTAL ASSETSSpain

15,916

16,008

20,933Argentina

14,349

15,461

20,544Rest of Latin America

5,768

5,397

6,954Rest of the world

2,000

1,198

3,00838,033

38,064

51,439


F-71

---



The
detail, by business activity, of the geographical distribution of the main foreign subsidiaries in 2003 is as follows:

|                               |  | Company                                          |  | Location           
|------------------------------ |  | ------------------------------------------------ |  | -------------------
|Exploration and Production:    |  |                                                  |  |                    
|Argentina                      |  | YPF, S.A.                                        |  | Argentina          
|                               |  | Pluspetrol Energy, S.A.                          |  | Argentina          
|Other Latin American countries |  | Empresa Petrolera Andina, S.A.                   |  | Bolivia            
|                               |  | Maxus Bolivia Inc.                               |  | Bolivia            
|                               |  | Repsol Exploración Securé S.A.                   |  | Bolivia            
|                               |  | Repsol YPF Bolivia, S.A.                         |  | Bolivia            
|                               |  | Repsol YPF E & P Bolivia, S.A.                   |  | Bolivia            
|                               |  | Transierra, S.A.(1)                              |  | Bolivia            
|                               |  | Repsol YPF Brasil, S.A.                          |  | Brazil             
|                               |  | Repsol YPF Eléctrica de Brasil, S.A.             |  | Brazil             
|                               |  | Repsol Exploración Colombia, S.A.                |  | Colombia           
|                               |  | Repsol Occidental Corporation                    |  | Colombia           
|                               |  | Repsol YPF Cuba, S.A.                            |  | Cuba               
|                               |  | Repsol YPF Ecuador, S.A.                         |  | Ecuador            
|                               |  | Repsol YPF OCP Ecuador, S.A.                     |  | Ecuador            
|                               |  | YPF Ecuador Inc.                                 |  | Ecuador            
|                               |  | Repsol Exploración Perú, S.A.                    |  | Peru               
|                               |  | BPRY Caribbean Ventures Llc.                     |  | Trinidad and Tobago
|                               |  | Repsol Exploración Tobago, S.A.                  |  | Trinidad and Tobago
|                               |  | Repsol Exploración Trinidad, S.A.                |  | Trinidad and Tobago
|                               |  | Repsol Exploración Venezuela, BV                 |  | Venezuela          
|                               |  | Repsol YPF Venezuela, S.A.                       |  | Venezuela          
|Rest of the World              |  | Repsol Exploración Argelia, S.A.                 |  | Algeria            
|                               |  | Dubai Marine Areas, Ltd.                         |  | Dubai              
|                               |  | Repsol Exploración Guinea, S.A.                  |  | Guinea             
|                               |  | Repsol Exploración Murzuq, S.A.                  |  | Libya              
|                               |  | YPF International, S.A. and investees            |  | Indonesia          
|                               |  | Repsol Exploración Azerbaiyán, S.A.              |  | Azerbaiyan         
|                               |  | Repsol Exploración Kazahkstan, S.A.              |  | Kazahkstan         
|                               |  | Atlantic LNG 2/3 Company of Trinidad & Tobago(1) |  | Trinidad and Tobago
|                               |  | Atlantic LNG Company of Trinidad & Tobago(1)     |  | Trinidad and Tobago
|                               |  |                                                  |  |                    

F-72

---



|Refining and Marketing: |  |                                                          |  |          
|----------------------- |  | -------------------------------------------------------- |  | ---------
|Argentina               |  | Comsergas, Cía. Servicios Industriales Gas Licuado, S.A. |  | Argentina
|                        |  | Gas Austral, S.A.(1)                                     |  | Argentina
|                        |  | Gasoducto del Pacífico (Argentina), S.A.(1)              |  | Argentina
|                        |  | Gasoducto Oriental, S.A.(1)                              |  | Argentina
|                        |  | Mejorgas, S.A.(1)                                        |  | Argentina
|                        |  | Oiltanking Ebytem S.A.(1)                                |  | Argentina
|                        |  | Oleoductos del Valle, S.A.(1)                            |  | Argentina
|                        |  | Oleoducto Trasandino Argentina, S.A.(1)                  |  | Argentina
|                        |  | Operadora de Estaciones de Servicio, S.A                 |  | Argentina
|                        |  | Poligás Luján, S.A.                                      |  | Argentina
|                        |  | Refinerías del Norte, S.A.                               |  | Argentina
|                        |  | Repsol YPF Gas, S.A                                      |  | Argentina
|                        |  | Terminales Marítimas Patagónicas, S.A.(1)                |  | Argentina
|                        |  | YPF, S.A.                                                |  | Argentina
|                        |  |                                                          |  |          

F-73

---



|Other Latin American countries |  | Repsol YPF Gas Bolivia, S.A.                         |  | Bolivia
|------------------------------ |  | ---------------------------------------------------- |  | -------
|                               |  | Repsol YPF GLP Bolivia, S.A.                         |  | Bolivia
|                               |  | Operadora de Postos de Serviçio, Ltd.                |  | Brazil 
|                               |  | Refap, S.A.                                          |  | Brazil 
|                               |  | Refinaria de Petróleo Manguinhos, S.A.               |  | Brazil 
|                               |  | Repsol YPF Brasil, S.A.                              |  | Brazil 
|                               |  | Repsol YPF Distribuidora, S.A.                       |  | Brazil 
|                               |  | Repsol Gas Brasil, S.A.(1)                           |  | Brazil 
|                               |  | Transportadora SulBrasileira de Gas, S.A.(1)         |  | Brazil 
|                               |  | Manguinhos Distribuidora, S.A.                       |  | Brazil 
|                               |  | Wal Química, S.A.                                    |  | Brazil 
|                               |  | Empresas Lipigas, S.A.                               |  | Chile  
|                               |  | Oleoducto Trasandino Chile, S.A.(1)                  |  | Chile  
|                               |  | Operaciones y Servicios YPF, Ltd.                    |  | Chile  
|                               |  | Petróleos Transandinos YPF, S.A.                     |  | Chile  
|                               |  | Repsol Butano Chile, S.A.                            |  | Chile  
|                               |  | Repsol YPF Chile, Lda.                               |  | Chile  
|                               |  | Repsol YPF Gas de Chile, S.A.                        |  | Chile  
|                               |  | Repsol YPF Importadora de Productos, Ltda.           |  | Chile  
|                               |  | Autogas, S.A.                                        |  | Ecuador
|                               |  | Combustibles Industriales Oil Trader, S.A.           |  | Ecuador
|                               |  | Duragas, S.A.                                        |  | Ecuador
|                               |  | Repsol YPF Comercial del Ecuador, S.A.               |  | Ecuador
|                               |  | Servicio de Mantenimiento y PersonalSEMAPESA        |  | Ecuador
|                               |  | Grupo Repsol YPF del Perú, SAC                       |  | Peru   
|                               |  | Limagas, S.A.(1)                                     |  | Peru   
|                               |  | Refinería La Pampilla, S.A.                          |  | Peru   
|                               |  | Repsol Comercial S.A.C.RECOSAC                      |  | Peru   
|                               |  | Repsol YPF Comercial de la Amazonia S.A.C.RYCOAMSAC |  | Peru   
|                               |  | Repsol YPF Comercial del Perú, S.A.                  |  | Peru   
|                               |  |                                                      |  |        

F-74

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|Rest of the World              |  | RYTTSA USA, Inc. and investees                   |  | United States
|------------------------------ |  | ------------------------------------------------ |  | -------------
|                               |  | Repsol France, S.A.(1)                           |  | France       
|                               |  | Repsol Italia, S.P.A.                            |  | Italy        
|                               |  | National Gaz(1)                                  |  | Morocco      
|                               |  | Repsol Maroc(1)                                  |  | Morocco      
|                               |  | Repsol Portugal Gas de Petróleo Liquefeito, S.A. |  | Portugal     
|                               |  | Repsol Portugal Petróleo e Derivados, Lda.       |  | Portugal     
|Chemicals:                     |  |                                                  |  |              
|Argentina                      |  | PBB Polisur, S.A.(1)                             |  | Argentina    
|                               |  | Petroken Petroquímica Ensenada, S.A.(1)          |  | Argentina    
|                               |  | Profertil, S.A.                                  |  | Argentina    
|                               |  | YPF, S.A.                                        |  | Argentina    
|Other Latin American countries |  | Dynasol Elastómeros, S.A. de CV(1)               |  | Mexico       
|Rest of the World              |  | Repsol Bronderslev A/S(1)                        |  | Denmark      
|                               |  | Repsol Polivar, S.P.A.(1)                        |  | Italy        
|Natural Gas and Electricity:   |  |                                                  |  |              
|Argentina                      |  | Central Dock Sud, S.A.(1)                        |  | Argentina    
|                               |  | Compañía Mega, S.A.                              |  | Argentina    
|                               |  | Gas Natural SDG Argentina, S.A.                  |  | Argentina    
|                               |  | Gas Argentino, S.A. GASA(1)                      |  | Argentina    
|                               |  | Gas Natural BAN, S.A.                            |  | Argentina    
|                               |  | Metrogas, S.A.(1)                                |  | Argentina    
|                               |  | Natural Energy, S.A.                             |  | Argentina    
|                               |  | Natural Servicios, S.A.                          |  | Argentina    
|                               |  |                                                  |  |              

F-75

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|Other Latin American countries |  | Ceg Río, S.A.                                                        |  | Brazil     
|------------------------------ |  | -------------------------------------------------------------------- |  | -----------
|                               |  | Compañía Distribuidora de Gas do Rio de Janeiro, S.A. (C.E.G.)       |  | Brazil     
|                               |  | Gas Natural de Sao Paulo Sul, S.A.                                   |  | Brazil     
|                               |  | Gas Natural do Brasil                                                |  | Brazil     
|                               |  | Serviconfort Brasil, S.A.                                            |  | Brazil     
|                               |  | Gas Natural Cundiboyacense, S.A.                                     |  | Colombia   
|                               |  | Gas Natural del Oriente, S.A. ESP                                    |  | Colombia   
|                               |  | Gas Natural ESP                                                      |  | Colombia   
|                               |  | Gases de Barrancabermeja, S.A. ESP                                   |  | Colombia   
|                               |  | Servicorfort Colombia, S.A.                                          |  | Colombia   
|                               |  | Administradora de Servicio de Energía de México, S.A. de CV (ASEMSA) |  | Mexico     
|                               |  | CH4 Energía, S.A. de C.V.                                            |  | Mexico     
|                               |  | Comercializadora Metrogas, S.A. de CV                                |  | Mexico     
|                               |  | Energíay Confort Administración Personal, S.A. de CV                 |  | Mexico     
|                               |  | Gas Natural México, S.A. de CV                                       |  | Mexico     
|                               |  | Gas Natural Servicios, S.A. de CV                                    |  | Mexico     
|                               |  | Servicio de Energía de México, S.A. de CV (SEMSA)                    |  | Mexico     
|                               |  | Sistemas de Administración y Servicios, S.A. de CV                   |  | Mexico     
|                               |  | Transnatural SRL de México                                           |  | Mexico     
|                               |  | Buenergía Gas & Power, Ltd.                                          |  | Puerto Rico
|Rest of the World              |  | Gas Natural Distribuzione Italia, SPA                                |  | Italy      
|                               |  | Europe Magreb Pipeline (EMPL)                                        |  | Morocco    
|                               |  | Metragaz, S.A.                                                       |  | Morocco    

---

F-76

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(22)    ENVIRONMENTAL INFORMATION

The
Repsol YPF Environmental Management System includes a methodology to identify relevant matters for environmental planning to enable the Company to prepare its annual
five-year Environmental Strategy Plan (PEMA) which forms part of the Group's general strategic planning process. The PEMA includes the measures necessary to respond to new legislative
requirements, Repsol YPF's strategic focus, plans for corrective measures arising from environmental audits performed, etc.

Environment-related
activities are identified through the "Repsol YPF Environmental Cost Guide" which adapts the American Petroleum Institute guidelines to the Group's operations and
technical approach. In this respect it is important to note that the traditional "bottom-line" solutions for reducing environmental impact are gradually giving way to preventive measures
built into processes right from the time the facilities are designed. This sometimes requires the identification of environmental assets through a system of coefficients applied to investment projects
and the related property, plant and equipment.



As
of December 31, 2003, the cost of the environmental assets identified and their accumulated depreciation amounted to €1,949 million and
€880 million, respectively. The cost includes €264 million relating to construction in progress as of December 31, 2003. The breakdown of these
costs by environmental concept is as follows:

Millions of EurosCost at 12/31/03

Acumulated Depreciation at 12/31/03

Net at 12/31/03Atmospheric emissions

201

109

92Water

404

196

209Product quality

730

312

417Soil

16

6

10Energy saving and efficiency

97

65

32Prevention of exploration and production damage

372

149

224Waste

2

2

Losses

2



2Other(*)

125

41

831,949

880

1,069


---

As
in prior years, the major environmental investments made in refineries in 2003 included most notably those needed to achieve the environmental quality of petroleum products required
by new European and Argentine legislation. Outstanding among the projects executed in this area was the progress made on the Mild Hydrocracker under construction at the Puertollano refinery, in which
the environmental investment amounted to €105 million in 2003, representing 80% of the investment made

F-77

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during
the year in this project. Also noteworthy was the Thermal Hydrodesulfurization project at the La Coruña refinery, which involved an environmental investment of
€42 million in 2003.

Also
in the refinery area, significant cost-cutting and energy efficiency measures were implemented in Spain, for a total of €3.9 million. It should be
noted the water management project to prevent the overflow of the wastewater treatment pool at the La Plata refinery (Argentina), for a total of approximately €6 million, and
the remodeling of the industrial effluent system at the Luján de Cuyo (Argentina) refinery, in which €2.2 million were invested.

In
the Chemicals business line, significant work was done on the Flue Gas Desulfurization project for the Thermal Treatment System of the Tarragona complex. This project, which is still
being executed, involved an investment of €13.8 million in 2003.

In
the Exploration and Production area, outstanding was therevampingproject to optimize production water injection in the Bloque 16
operations in Ecuador. This project, which is still in progress and required an investment of €1.2 million in 2003, is wholly of an environmental nature.

Gas
Natural's investments in 2003 amounted to approximately €7 million (amount relating to the proportion attributable to the Group) and were mainly for the
renovation of networks and connections, and to maintain ISO 14001 Environmental Management certification.



Repsol
YPF records the necessary provisions to cover the measures aimed at preventing and repairing environmental impact. These provisions are estimated according to technical and
financial criteria and are recorded under the "Other Provisions" caption.

The
variations in the provisions for environmental actions in 2003 were as follows:

Millions of EurosBalance at 12/31/02

111Period provisions charged to income

28Provisions released with a credit to income

(13
)Reversal due to payment

(25
)Other

(17
)Balance at 12/31/03

84


The
balance of the environmental provisions as of December 31, 2003, included notably approximately €53 million to cover the environmental risks relating to
the operations previously carried out by the former chemicals subsidiary of Maxus Energy Corporation, Diamond Shamrock Chemicals Company, prior to its sale in 1986 to Occidental Petroleum Corporation
(see Note 23). It also includes €18 million of provisions for YPF, S.A.'s environmental remediation projects.

Additionally,
Repsol YPF's Environmental Cost Guide classifies as environmental costs 75% of the amounts recorded under the "Field Dismantlement Provision" caption, whose balance as of
December 31, 2003, amounted to €151 million (see Note 14).

The
corporate insurance policies cover third-party liability for pollution caused by accidental and sudden events, in keeping with standard practices in the industry.

F-78

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In
2003 environmental expenses amounted to €40 million and were recorded under the "Materials Consumed" caption.

Significant
initiatives included water management, soil and groundwater remediation, atmosphere protection and waste management projects amounting to €13 million,
€9 million, €8 million and €7 million, respectively.



Some
of the most important issues that might affect Repsol YPF's operations and investments in the future are climate change, european legislation on the environmental quality of
petroleum products and Directive 96/61/EC on Integrated Pollution Prevention and Control (IPPC).

With
respect to climate change, Spain is the only country listed in Annex I (which establishes the greenhouse gas emission limits for countries in the Kyoto Protocol) in which Repsol YPF
has significant operations. In Spain, the refineries and cogeneration plants with an installed capacity of over 20 MW are also included in the scope of the CO2 Trading Directive. The Group is
implementing an action plan to cope with any commitments which may eventually arise under the Directive. However, since there are still certain uncertainties, mainly relating to the National Emission
Rights Assignment Plan being prepared by the Spanish Government, it is not possible to estimate the associated financial cost.

The
new product environmental quality requirements are included mainly in European Directives 98/70/EC (transposed into Spanish Law through Royal Decree 1728/1999) on gasoline and
gas-oil specifications, and 99/32/EC (RD 287/2001) on the sulfur content of certain liquid fuels. In 2003 the future specifications remained the same as in 2002. In this context,
previously approved projects are being executed, such as the Mild Hydrocracker (MHC) in Puertollano, FCC feed Hydrotreatment (HDT) in La Coruña, the Isomerization plant in Tarragona and
the remodeling of the Middle Distillate Hydrotreatment and Conversion Units in Cartagena.

In
mid-2003, an FCC naphtha desulfurization project with an 850 kilotonne annual capacity was approved in Bilbao, as were a new middle distillate HDT plant with a 1,100
kilotonne annual capacity and modifications to the existing Middle Distillate HDT Units to adapt the refinery's needs to the requirement of 10 parts per million (ppm) of sulfur in liquid fuels.

To
carry out these projects and ensure compliance with the specifications established, Repsol YPF has planned to invest a total of €485 million in the period 2004
- 2008. Of this amount, it is estimated that €478 million will be for environmental purposes and the remainder to achieve a higher conversion capacity.

With
regard to product environmental quality requirements in Argentina, the Secretary for Energy, through Resolution 824 of October 2003 and other interim resolutions, brought
forward the timetable, establishing the period 2006 - 2008 for changes to the specifications which will be applicable to fuels in the future. To ensure compliance therewith, investments
were approved including most notably the FCC naphtha fractionating and desulfurization project in La Plata. In addition to the investments already approved, studies are under way for new FCC naphtha
fractionating and desulfurization units in Lujan

F-79

---



de
Cuyo, middle distillate desulfurization units at all the refineries and a new naphtha fractionating unit in Plaza Huincul.

In
2002 the IPPC Directive was transposed into Spanish legislation through Law 16/2002. In addition, Certain Autonomous Communities, such as Cataluña, have developed their
own legislation based on this Directive, extending the scope of application to other facilities such as service stations. Also in process is the draft of the Regulations of Law 16/2002, distributed by
the Central Government to the industries concerned for deliberation. These Regulations are expected to clarify the method for obtaining Integrated Environmental Permits before 2007.

With
regard to other obligations established under current legislation and which are to be met progressively, mention should be made of Directive 94/63/EC on the control of volatile
organic
compound emissions, which was transposed into Spanish Law by Royal Decree 2102/1996. This Royal Decree establishes the technical requirements to be met in the design and operation of plants, vehicles
and ships for the control of volatile organic compounds (VOC) resulting from gasoline storage and distribution, and sets January 1, 2005 as the deadline for adapting existing systems. Repsol
YPF has planned investments amounting to €1.8 million to meet these requirements in the period 2004 - 2005.

Currently
under discussion is the draft of the Regulation on contaminated soils implementing Article 27 of Law 10/1998 on Waste Management. This Regulation would require the Group
to carry out research and evaluation of soils where such activities were not conducted before, and to undertake remediation projects if necessary.

The
Repsol YPF Group contributes to the International Oil & Gas Pollution Compensation Fund (IOPC), as an oil company which receives persistent oil & gas by sea. Repsol YPF
records these contributions on the date they are billed by the IOPC. In 2003 IOPC billed the Group for approximately €0.43 million.

(23)    OTHER INFORMATION





As of December 31, 2003, the REPSOL YPF Group companies had provided the following guarantees:



F-80

---







As of December 31, 2003, the REPSOL YPF Group had requested guarantees amounting to €1,063 million from finance entities. They
consist mainly of guarantees of compliance with terms and conditions of tenders awarded, guarantees requested by various court and administrative bodies in relation to litigation in progress and
claims on which decisions had not yet been handed down, and the Group companies' trading activities.

The
directors of Repsol YPF, S.A. do not expect significant losses to arise from these commitments, in addition to those already recorded.

The
gains and losses generated on the settlement of these instruments on maturity, which is when physical delivery of the product is made, are recorded as operating revenues and expenses
under the "Net sales" and "Materials consumed" captions, respectively, in the accompanying consolidated statement of income.

As
of December 31, 2003 the unsettled positions were as follows:

Millions of Barrels

Thousands of US DollarsBuy contracts crude:Short term (WTI)

4.223

134,846Sell contracts crude:Short term (WTI)

3.006

97,933Swap contracts crude:Short term (WTI, Dubai)

1.190

9,903


Tonnes

Thousands of US DollarsSwap contracts propane:Short term

12,000

3,931Swap contracts nafta:Short term

639,000

180,479Swap contracts gas-oil:Short term

15,000

338


F-81

---





In
June 1998 and December 2001, YPF acquired swap contracts on crude oil prices in connection with commitments to deliver approximately 23.9 million and 24.1 million
barrels of crude oil within ten and seven years, respectively, as established in the sale contracts described under the "Other Contractual Commitments" heading in this Note.

As
of December 31, 2003, the REPSOL YPF Group held price swap contracts on 27.7 million barrels of crude oil at an average price of US$ 19.75 per barrel based on the
following schedule:

2004

2005

2006

2007

2008

TotalVolume (millions of barrels)

5.8

5.8

5.8

5.8

4.5

27.7Price (Dollars per barrel)

19.62

19.62

19.62

19.62

20.22

19.75Amount (millions of US Dollars)

114

114

114

114

91

547


Under
these contracts, the REPSOL YPF Group will deliver the amount equivalent to the volume of barrels of crude oil traded at a fixed average price of US$ 19.75 per barrel and will
receive in exchange the value of the same number of barrels at market prices.

In
connection with the long-term contract to sell gas to be supplied from Bolivia to the thermoelectric market in Brazil, which is recorded in this note under the "Other
Contractual Commitments" heading, a contract was entered into by Empresa Petrolera Andina, S.A. and Petróleo Brasileiro, S.A. (Petrobras) in 2002 in order to establish a protection
mechanism against variations in the price of the gas covered by the contract, reducing the volatility of the income by means of the establishment of adjustment prices and the subsequent settlement of
any differences so arising.

The
Company finances its activities in the functional currencies in which its foreign investments are denominated, thereby reducing the exchange risk. This policy is implemented either
through the obtainment of financing in the related currency or through the arrangement of currency swaps.

The
detail of the various financial derivatives as of December 31, 2003, is as follows:





F-82

---







These contracts are used to hedge assets and liabilities denominated in foreign currencies.

The
amount resulting from the difference between the forward rate and the spot rate at the contract date is recorded as a financial revenue or expense and is prorated over the term of
the contracts. At the end of each year, these contracts are valued at the exchange rate then prevailing and the resulting exchange differences are recorded under the "Financial Revenues/Financial
Expenses" caption in the consolidated statement of income, except for those arising on transactions for financing investments in investees whose functional currency is the same as that of the related
contract, in which case they are recorded as an addition or a reduction under the "Shareholders' EquityTranslation Differences" caption.

The
nominal value of these contracts as of December 31, 2003 was as follows:

Buy

Sell

MaturityUS$

1,956 million

€

1,595 million

2004€

117 million

US$

140 million

2004GBP

0.6 million

US$

1.0 million

2004US$

18 million

Pesos chilenos

10,788 million

2004US$

5 million

BRL

15 million

2004




The
REPSOL YPF Group hedges its foreign currency assets and liabilities by using cross-currency IRS, through which debt denominated in various currencies are converted into debt
basically in U.S. dollars or euros.

Notional amount

Maturity

Foreign currency
Debt€

3,650 million

2004-2010

US$BRL

27 million

2004-2005

US$


The
interest on these transactions is recorded as financial revenues and expenses.



As
of December 31, 2003, the REPSOL YPF Group held the following interest rate swaps:

Notional amount

MaturityFrom floating to fixed interest rate

€(*)

713 million

2027From floating to fixed interest rate

Mexican peso

272 million

2004From floating to fixed interest rate

US$

69 million

2017From floating to floating interest rate

€

33 million

2007


---

F-83

---



In
December 1997 REPSOL YPF monetized the option of redeeming the preferred shares issued in October that year by selling an interest rate option whereby the acquirors of the
option had the rightexercisable from October 2002 to October 2007to carry out an interest rate swap transaction with Repsol YPF for a total notional amount of
US$ 725 million under which:



The
premium received on the sale of this interest rate option (which amounted to US$ 78 million) was recorded as deferred revenues (see Note 13), was amortized over the
contract term and recorded as a financial revenue in the consolidated statement of income.

In
October and November 2002 the acquirors of the option sold in the past by Repsol YPF exercised their right to carry out the aforementioned swap transaction, which is addressed
in this note under the "Exchange Rate Hedging Transactions" heading in section c) Interest rate swaps. Since that date Repsol YPF has used this interest rate swap to hedge the cash flows
generated by the issues of preferred shares in euros (see Note 12) and has thus transformed the nominal amount, interest rates and the related flows from dollars to euros.

As
a result of these transactions the Group recorded a net financial expense of €87 million in 2002, which reflects the mark-to-market of
the swap as of the date of commencement of the hedge, net of the amount of the unamortized premium.

The
Company retains the option of redeeming the preferred share issue early.

In
May 2001 REPSOL YPF arranged an interest rate option purchase and sale transaction on a notional amount of €1,000 million tied to the preferred shares
issued on that date (see Note 12).

The
characteristics of these options are as follows:



By
virtue of these interest rate option purchase and sale transactions, the final cost for REPSOL YPF of this preferred share issue, in the first ten years, is established at a floating
interest rate of 3-month EURIBOR.

Also,
in April 2002, effective June 30, 2002, REPSOL YPF arranged an interest rate option purchase and sale transaction on a notional amount of
€1,000 million tied to the preferred shares amounting to €2,000 million issued in December 2001 (see Note 12).

F-84

---



The
characteristics of these options are as follows:



By
virtue of these interest rate option purchase and sale transactions, the final cost for REPSOL YPF of €1,000 million of the total of
€2,000 million relating to the preferred shares issued in December 2001 is established, for the period from September 30, 2002 to December 30, 2011, at a
floating interest rate of 3-month EURIBOR.

Additionally,
as of December 31, 2003, REPSOL YPF held the following interest rate option on a notional amount of US$ 77 million:



Since
2000 the Recruiting and Compensation Committee of the Board of Directors of Repsol YPF, S.A. has implemented bonding programs initially aimed at senior executives and extendible to
other
persons occupying positions of high responsibility in the Company. Under these programs, a medium/long-term incentive was included in the compensation system. The aim of these programs is
to strengthen the identification of executives and managers with shareholders' interests while at the same time favoring retention of key personnel in an increasingly competitive labor market
environment.

The
various incentives plans in force are the following:



Qualification
for these incentive payments is tied to the beneficiary remaining at the Group's service on each of the dates on which the rights are exercisable. The plan beneficiaries
are entitled to compensation in cash on the basis of the appreciation of Repsol YPF, S.A. shares in the Spanish stock markets with respect to specific values and of the number of shares received.



The amount to be received by the beneficiaries of this plan is structured in two tranches, as follows:



F-85

---





This
right will be exercisable on the following dates:



The
exercisable rights conferred on the beneficiaries are valued at market price at the end of each year and the resulting value is prorated on a straight-line basis over the
period remaining to the expiration date of the plan. In accordance with this valuation method, the balance of the provision recorded in this connection was reduced by
€1 million as of December 31, 2003.



The amount to be received by the beneficiaries of this plan, who do not include senior management personnel pursuant to the Spanish Corporations Law, is
structured in two tranches, as follows:



This
right will be exercisable on the following dates:



In
order to cater for the possible payments to be made, in 2003 the Company acquired call options on Repsol YPF, S.A. shares which may be settled on the same dates and under the same
conditions as those established in the incentive plan as discussed above.

F-86

---





The detail of these transactions as of December 31, 2003, is as follows:

Exercise Price
(euros)

Type of
Transaction

Number of
Shares

Contract
Date

Net Premium
(euros)13

Call option

2,679,005

12/18/03

7,474,42418

Call option

2,679,005

12/12/03

1,982,4649,456,888


Repsol
accrues the cost of these options on a straight-line basis from the date on which the incentive was granted to the expiration date. The
€5.3 million paid relating to the cost allocated to future years was recorded under the "Deferred Expenses" caption as of December 31, 2003.

Through
the date of acquisition of these options, the exercisable rights conferred on the beneficiaries were valued at market price and the resulting value was prorated on a
straight-line basis over the period remaining to the expiration date of the plan. A provision of €3.6 million was recorded in this connection as of
December 31, 2002.

The
2003 expense recorded in connection with this incentive amounted to €0.5 million and is included under the "Wages, Salaries, etc." caption in the statement of
income.

As
of December 31, 2003, the Company had arranged transactions tied to the market price of Repsol YPF shares, settlable exclusively on a cash basis, for a total of 5,983,293
shares, with a benchmark price of €14.97 and expiring on January 30, 2004. No effect was recorded in the 2003 statement of income as a result of the valuation of these
transactions at market price as of December 31, 2003.



Qualification for this incentive payment is tied to the beneficiary remaining at the Group's service through December 31, 2006. This is a specific
pluriannual compensation plan for 2003 to 2006 entitling its beneficiaries to receive an additional variable compensation amount in 2007, provided that the set objectives are met. The objectives are
based on the Company's 2003-2007 Strategic Plan. This pluriannual incentive payment, if received, will consist of an amount tied to the fixed compensation for 2003, to which a variable
coefficient is applied on the basis of the extent to which the set objectives are achieved. For executive directors and members of the Management Committee the plan does not involve the delivery of
shares or options and the incentive pay is not tied to the value of Repsol YPF shares. A provision of €5.1 million was recorded in 2003 to meet the commitments arising from this
plan.



In
December 2000, 2001 and 2002, the Gas Natural Appointments and Compensation Committee approved several medium-term cash incentive plans tied to the performance the
Gas Natural SDG share price addressed to senior management. These incentive payments are tied to the beneficiaries remaining at the Company over the plan term. The beneficiaries may exercise their
right over a number of shares previously allocated to them, at a certain benchmark price, on certain dates. The

F-87

---



rights
exercisable each year are on up to one-third of the allocated shares and the unexercised portion is accumulable in the following years. In order to cater for the possible payments
to be made, Gas Natural acquired call options on its shares which will be settled on the expiration dates with the same benchmark price, the detail being as follows:

Type of
Transaction

Number of Shares

Premium
(Millions of Euros)2000 Incentive Plan

Call option

256,187

1.62001 Incentive Plan

Call option

255,202

2.02002 Incentive Plan

Call option

279,411

1.9


The
cost of these options is recorded under the "Personnel expenses" caption in the statement of income for each year.

The
asset swap contract entered into by Repsol YPF Brasil, S.A. and several Petrobras Group companies, by which assets and company holdings valued at US$ 559 million were
exchanged, envisages an annual revision of the value assigned in the operation to Eg3, S.A., an Argentinean company that owns a refinery and a network of service stations, and to 30% of Refap, S.A., a
Brazilian company that owns the Alberto Pasquilini refinery.

This
value revision, which will be calculated by applying the correction mechanisms envisaged in the contract, will be performed in the eight years following January 1, 2001, and
will in any case be limited to a variation of up to 40% of the value assigned to the assets in the swap.

To
date the possible rights or obligations for Repsol YPF Brasil arising from the application of the review to previous (2001, 2002 and 2003) or future years have not been quantified. In
any case, the directors consider that the settlements to be made at the end of the aforementioned period will not be material.

On
November 2, 2000, a 45% ownership interest was acquired in the Chilean group Lipigas.

The
acquisition agreement includes an option to purchase an additional 10%, exercisable from 2003 through 2005. Should the option be exercised, the sellers have three years to exercise a
sale option on the remaining 45%.

On
November 23, 2001, REPSOL YPF acquired an irrevocable option, with a penalty for non-exercise, to purchase a 7,500 m2 land lot from Tecnicontrol y
Gestión Integral, S.L. (a wholly-owned investee of Caja de Ahorros y Monte de Piedad de Madrid), which in turn had acquired it from Real Madrid Football Club. The acquisition cost of
this land lot, located in the club's former sports complex on the Paseo de la Castellana in Madrid, was €188 million.

The
premium paid by REPSOL YPF in connection with the irrevocable purchase option amounted to €1.2 million and the exercise period, which expired on
December 29, 2003, was extended to March 30, 2004, at an additional cost of €20,000.

F-88

---



The
exercise price will be determined by all the debts, interest, payments and related financial costs borne by Tecnicontrol y Gestión Integral, S.L. for the acquisition
and subsequent management of this land lot.

If
it fails to exercise the purchase option, REPSOL YPF will have to pay a penalty which will be determined as the difference between the option exercise price and the land sale price,
provided that the latter amount is lower than the option exercise price.



|Firm purchase commitments                         |  | Units                     |  | Total Commitment |  | Term     
|------------------------------------------------- |  | ------------------------- |  | ---------------- |  | ---------
|Purchase of petrochemical products                |  | Tonnes                    |  | 1,513,250        |  | 2004-2014
|L.P.G. purchases                                  |  | Tonnes                    |  | 126,468          |  | 2004-2007
|Natural gas purchases                             |  | Millions of cubic feet    |  | 5,478,015        |  | 2004-2030
|Electricity purchases                             |  | MWh/year                  |  | 8,962,176        |  | 2004-2017
|Vapor purchases                                   |  | Tonnes                    |  | 40,385,500       |  | 2004-2018
|Purchase of nitrogen                              |  | Tonnes                    |  | 166,140          |  | 2004-2008
|Investment commitments                            |  | Thousands of Euros        |  | 461,604          |  | 2004-2012
|Transmission of natural gas by pipeline           |  | Millions of cubic feet    |  | 3,579,379        |  | 2004-2033
|Transport of crude oil by pipeline                |  | Thousands of barrels      |  | 666,578          |  | 2004-2022
|Transport of petrochemical products               |  | Tonnes                    |  | 600,000          |  | 2004-2007
|Storage of oil and gas and petrochemical products |  | Thousands of cubic meters |  | 2,936            |  | 2004-2017
|Leases                                            |  | Thousands of Euros        |  | 504,704          |  | 2004-2020
|Services                                          |  | Thousands of Euros        |  | 37,357           |  | 2004-2016

F-89

---



|Firm sale commitments                        |  | Units                  |  | Total Commitment |  | Term     
|-------------------------------------------- |  | ---------------------- |  | ---------------- |  | ---------
|Crude oil sales                              |  | Thousands of barrels   |  | 3,598            |  | 2004-2016
|Natural gas sales                            |  | Millions of cubic feet |  | 11,751,182       |  | 2004-2029
|Petrochemical product sales                  |  | Tonnes                 |  | 1,539,750        |  | 2004-2006
|Oil and gas product sales (Coque and Carbon) |  | Tonnes                 |  | 4,660,000        |  | 2004-2012
|Oil and gas product sales (Lubricants)       |  | Thousands of Euros     |  | 280,242          |  | 2004-2008
|L.P.G. sales                                 |  | Tonnes                 |  | 383,834          |  | 2004-2008
|Transport of crude oil by pipeline           |  | Thousands of barrels   |  | 654,152          |  | 2004-2022
|Services                                     |  | Thousands of Euros     |  | 69,088           |  | 2004-2016
|Leases                                       |  | Thousands of Euros     |  | 22               |  | 2004-2013







F-90

---







F-91

---









F-92

---









F-93

---





The
Company's directors consider that the provisions recorded adequately cover the risks arising from the contingencies described above.

F-94

---





(24) SUBSEQUENT EVENTS

The
Mexican authorities have assigned to Repsol YPF the land for the construction of a regasification plant at the Lázaro Cárdenas port, on the Mexican
Pacific coast.

The
Lázaro Cárdenas liquefied natural gas (LNG) regasification terminal will be the first plant in the western part of Mexico and will be key to the energy
development of the Mexican Pacific coast, since it will supply gas to the markets in the area.

The
Integral Lázaro Cárdenas Port Authority (API) has awarded Repsol YPF the land on which this plant will be built for $10.1 million. This plant
will have an initial capacity of over 4,000 million cubic meters per year, with an expansion potential of up to 10,000 million cubic meters per year. The initial projected investment is
of approximately $350 million and the start-up is scheduled for 2008.

(25) CONSOLIDATED STATEMENTS OF CHANGES IN FINANCIAL POSITION

Following
are the Group's consolidated statements of changes in financial position for 2003, 2002 and 2001:

|                                                                                    |                                                         | Millions of Euros |      
|----------------------------------------------------------------------------------- | ------------------------------------------------------- | ----------------- | -----
|
|
|Investments                                                                         |                                                         |                   |      
|                                                                                    | Property, plant and equipment                           |                   | 2,241
|                                                                                    | Intangible assets                                       |                   | 80   
|                                                                                    | Long-term financial investments                         |                   | 392  
|                                                                                    | Acquisitions of consolidated affiliates                 |                   | 1,124
|                                                                                    |                                                         |                   |      
|Total investments                                                                   |                                                         | 3,837             |      
|                                                                                    | Deferred expenses                                       |                   | 24   
|                                                                                    |                                                         |                   |      
|TOTAL                                                                               |                                                         | 3,861             |      
|Net long-term assets and liabilities related to the consolidation of new affiliates |                                                         | 13                |      
|Net change in long-term assets and liabilities due to translation                   |                                                         | (498              | )    
|Dividends                                                                           |                                                         |                   |      
|                                                                                    | Of the Parent Company                                   |                   | 440  
|                                                                                    | Of the Group companies attributed to minority interests |                   | 194  
|Repayment or reclassification of long-term debt                                     |                                                         | 3,220             |      
|INCREASE IN WORKING CAPITAL                                                         |                                                         |                  |      
|                                                                                    |                                                         |                   |      
|TOTAL FUNDS APPLIED                                                                 |                                                         | 7,230             |      
|                                                                                    |                                                         |                   |      

F-95

---



|SOURCES OF FUNDS                              |                                 | 2003  |       | 2002  |       | 2001  
|--------------------------------------------- | ------------------------------- | ----- | ----- | ----- | ----- | ------
|Funds obtained from operations(*)             |                                 | 4,477 |       | 4,823 |       | 5,729 
|Subsidies and other deferred revenues         |                                 | 47    |       | 96    |       | 69    
|Contribution of minority interests            |                                 |      |       |      |       | 3,002 
|Long-term debt                                |                                 |       |       |       |       |       
|                                              | Loans received                  |       | 2,045 |       | 1,144 |       
|                                              | Other long-term debt            |       | 95    |       | 87    |       
|Disposal of fixed and other noncurrent assets |                                 |       |       |       |       |       
|                                              | Property, plant and equipment   |       | 116   |       | 77    |       
|                                              | Long-term investments and other |       | 112   |       | 2,481 |       
|DECREASE IN WORKING CAPITAL                   |                                 | 338   |       |      |       |      
|                                              |                                 |       |       |       |       |       
|TOTAL FUNDS OBTAINED                          |                                 | 7,230 |       | 8,708 |       | 14,514
|                                              |                                 |       |       |       |       |       

---

|                                                             |                                                    | Millions of Euros |      
|------------------------------------------------------------ | -------------------------------------------------- | ----------------- | -----
|
|Net income for the year                                      |                                                    | 2,020             |      
|Adjustments to determine the funds obtained from operations: |                                                    |                   |      
|                                                             | Depreciation, depletion and amortization           |                   | 2,419
|                                                             | Provisions funded (net)                            |                   | 260  
|                                                             | Income attributed to minority interests            |                   | 210  
|                                                             | Income/(expense) on fixed assets disposals         |                   | (56  
|                                                             | Cancellation of deferred tax liabilities and other |                   | (376 
|                                                             |                                                    |                   |      
|Funds obtained from operations                               |                                                    | 4,477             |      
|                                                             |                                                    |                   |      

The
variations in working capital in 2003, 2002 and 2001 were as follows:

|                                               |  | Millions of Euros
|---------------------------------------------- |  | -----------------
|
|
|
|Inventories                                    |  |                 
|Accounts receivable                            |  | 112              
|Accounts payable                               |  |                 
|Temporary cash investments and cash            |  | 813              
|Prepaid expenses and accrued liabilities (net) |  |                 
|                                               |  |                  
|TOTAL                                          |  | 925              
|VARIATION IN WORKING CAPITAL                   |  | 338              
|                                               |  |                  
|                                               |  | 1,263            
|                                               |  |                  

F-96

---



(26) CONSOLIDATED ANALYTICAL STATEMENTS OF INCOME

for the years ended December 31, 2003, 2002 and 2001

|                                                                 |  | Millions of Euros |  
|---------------------------------------------------------------- |  | ----------------- | -
|
|Net sales                                                        |  | 36,069            |  
|Variation in finished product and work-in-process inventories    |  | 54                |  
|Capitalized expenses of Group work on fixed assets               |  | 68                |  
|Other operating revenues                                         |  | 1,015             |  
|                                                                 |  |                   |  
|VALUE OF PRODUCTION                                              |  | 37,206            |  
|Purchases                                                        |  | (24,320           | )
|Variation in raw materials and merchandise                       |  | 6                 |  
|External and operating expenses                                  |  | (5,310            | )
|                                                                 |  |                   |  
|VALUE ADDED BY THE COMPANY                                       |  | 7,582             |  
|Other expenses                                                   |  | (287              | )
|Personnel expenses                                               |  | (1,111            | )
|GROSS OPERATING INCOME                                           |  | 6,184             |  
|Depreciation, depletion and amortization                         |  | (2,245            | )
|Provision to reversion in reserve                                |  | (6                | )
|Variation in operating provisions                                |  | (73               | )
|                                                                 |  |                   |  
|NET OPERATING INCOME                                             |  | 3,860             |  
|Financial revenues                                               |  | 2,123             |  
|Financial expenses                                               |  | (2,523            | )
|Amortization of goodwill in consolidation                        |  | (174              | )
|Share in income (loss) of companies carried by the equity method |  | 146               |  
|                                                                 |  |                   |  
|INCOME FROM ORDINARY ACTIVITIES                                  |  | 3,432             |  
|Gains on fixed assets and extraordinary revenues                 |  | 169               |  
|Losses on fixed assets and extraordinary expenses                |  | (572              | )
|Variation in fixed asset provisions                              |  | 249               |  
|                                                                 |  |                   |  
|INCOME BEFORE INCOME TAX AND MINORITY INTERESTS                  |  | 3,278             |  
|Income tax                                                       |  | (1,048            | )
|                                                                 |  |                   |  
|INCOME FOR THE YEAR                                              |  | 2,230             |  
|Income attributed to minority interests                          |  | (210              | )
|                                                                 |  |                   |  
|NET INCOME                                                       |  | 2,020             |  
|                                                                 |  |                   |  

(27) DIFFERENCES BETWEEN SPANISH AND UNITED STATES GENERALLY ACCEPTED ACCOUNTING PRINCIPLES AND OTHER REQUIRED
DISCLOSURES

The
consolidated financial statements of the REPSOL YPF Group are prepared in accordance with Spanish GAAP, which differ in certain significant respects from U.S. GAAP. These differences
are discussed in the following paragraphs.

F-97

---





The following table ("Reconciliation Table") sets forth the most significant adjustments to consolidated net income and shareholders' equity that would have been
required had U.S. GAAP been applied instead of Spanish GAAP:

|                                                                                     |                                                                          | (Millions of Euros)                                                 |   
|------------------------------------------------------------------------------------ | ------------------------------------------------------------------------ | ------------------------------------------------------------------- | --
|
|
|
|
|
|
|Amounts per accompanying consolidated financial statements                           |                                                                          |                                                                     |   
|Increase (decrease) due to:                                                          |                                                                          |                                                                     |   
|                                                                                     | Adjustments to costs of fixed assets:                                    |                                                                     |   
|                                                                                     |                                                                          | Elimination of legal restatements of property, plant and equipment |   
|                                                                                     |                                                                          | Impairment of oil and gas assets                                   |   
|                                                                                     |                                                                          | Fixed asset gross up due to tax basis difference                   |   
|                                                                                     |                                                                          | Deferred tax liability due to fixed asset gross up                 |   
|                                                                                     | Goodwill                                                                 |                                                                     |   
|                                                                                     |                                                                          | Goodwill amortization life                                         |   
|                                                                                     |                                                                          | Direct expenses capitalized as goodwill                            |   
|                                                                                     |                                                                          | Preacquisition contingencies related to YPF                        |   
|                                                                                     |                                                                          | Exchange tender offers                                             |   
|                                                                                     |                                                                          | Reversal of goodwill amortization                                  |   
|                                                                                     |                                                                          | Goodwill impairment                                                |   
|                                                                                     | Revenue recognition                                                      |                                                                     | 5 
|                                                                                     | Compensation arrangements                                                |                                                                     | 6 
|                                                                                     | Interest rate swaption                                                   |                                                                     | 7 
|                                                                                     | Deferred start-up activities costs                                       |                                                                     | 8 
|                                                                                     | Costs related to stock issues                                            |                                                                     | 9 
|                                                                                     | Acquisition of Enagás                                                    |                                                                     | 10
|                                                                                     | Revenues from gas distribution infrastructure                            |                                                                     | 11
|                                                                                     | Translation differences related to disposals                             |                                                                     | 12
|                                                                                     | Andina asset swap                                                        |                                                                     | 13
|                                                                                     | Derivative instruments and hedging activities                            |                                                                     | 14
|                                                                                     | Reversal of involuntary conversion in Argentina                          |                                                                     | 15
|                                                                                     | Pension plan additional minimum liability                                |                                                                     | 16
|                                                                                     | Foreign currency exchange gains                                          |                                                                     | 17
|                                                                                     | Functional currency of YPF                                               |                                                                     | 18
|                                                                                     | Asset retirement obligations  effect in period                          |                                                                     | 19
|                                                                                     | US GAAP adjustments of equity investees                                  |                                                                     | 20
|                                                                                     | OthersRepsol Garantizado                                                |                                                                     | 21
|                                                                                     | Tax effect of the above adjustments and deferred taxation under SFAS 109 |                                                                     | 22
|                                                                                     |                                                                          |                                                                     |   
|Amounts under U.S. GAAP before cumulative effect of a change in accounting principle |                                                                          |                                                                     |   
|                                                                                     | Cumulative effects of changes in accounting principles, net of tax:      |                                                                     |   
|                                                                                     |                                                                          | Derivatives and hedging activitiesAs of January 1, 2001            |   
|                                                                                     |                                                                          | Goodwill impairment, as of January 1, 2002                          |   
|                                                                                     |                                                                          | Asset retirement obligations, as of January 1, 2003                 |   
|                                                                                     |                                                                          |                                                                     |   
|Amounts under U.S. GAAP                                                              |                                                                          |                                                                     |   
|                                                                                     |                                                                          |                                                                     |   

F-98

---



EARNINGS PER SHARE

2003

2002

2001Income, under U.S. GAAP, before cumulative effect of a change in accounting principle per share

1.57

2.05

0.80Cumulative effect of a change in accounting principle per share

0.01

(1.00
)
0.00Net income per share in accordance with U.S. GAAP(*)

1.57

1.05

0.80


---

Millions of EurosStatement of changes in shareholders' equity2003

2002U.S. GAAP shareholders' equity at January 1

12,947

13,717Net income for the year

1,921

1,286Share issuances



Interim dividend

(244
)
(183
)Supplementary dividend

(196
)
Accumulated other comprehensive income (loss):Translation adjustments under Spanish GAAP

(1,534
)
(2,721
)Additional translation adjustments under U.S. GAAP

81

962Minimum pension liability, net of tax

(7
)
(34
)Derivatives and hedging activities, net of tax

212

(80
)U.S. GAAP shareholders' equity at December 31

13,180

12,947


The
differences included in the Reconciliation Table above are explained in the following items:

1. Elimination of legal restatements of property, plant, and equipment

As described in Note 2.c.1, the cost and accumulated depreciation of property, plant and equipment have been restated, including the 1996 legal
restatement. Under U.S. GAAP, such restatements are not permitted. The adjustments shown in the Reconciliation Table above include a reduction of consolidated shareholders' equity due to the
elimination of these restatements, and an increase in consolidated net income for each year, resulting from the elimination of the depreciation expense on the amount of the restatement recorded under
Spanish GAAP. The effect of the tax credit arising from deductibility of future depreciation of the restated assets in 1996 was recorded as income for the year, net of the 3% tax, in accordance with
Statement of Financial Accounting Standards ("SFAS") No. 109,Accounting for Income Taxes("SFAS 109") (see Item 21"Tax
effect of the above adjustments and deferred taxation under SFAS 109").

In
2002 and 2003, amounts previously included in this adjustment attributable to Gas Natural and CLH have been reclassified to Item 20"US GAAP adjustments of equity
investees," since these investments are carried by the equity method of accounting under U.S. GAAP beginning in 2002.

F-99

---





2. Impairment of oil and gas assets

In 1998, REPSOL YPF utilized different assumptions in the measurement of long-lived asset (oil and gas properties) impairments for Spanish GAAP and
U.S. GAAP. Under Spanish GAAP, REPSOL YPF utilized a risk factor based on historical experience for the estimation of probable reserves, and its incremental borrowing rate as the discount rate. Under
U.S. GAAP, REPSOL YPF considered a risk factor based on industry practice, and a discount rate that included a risk premium associated with those assets.

As
a consequence of the above, REPSOL YPF recorded, under U.S. GAAP, an additional impairment charge of €41 million (before tax) in the consolidated statements of
income in the year ended December 31, 1998. During 1999 and 2000, oil prices experienced a significant increase, thus making it unnecessary to record further impairment charges related to the
recovery of oil and gas properties during that period. As a result of the above, net income for the years ended December 31, 2003, 2002, and 2001, should be increased by
€9 million, €2 million, and €9 million, respectively, due to lower depreciation charges, and shareholders' equity as of
December 31, 2003 and 2002 should be increased (decreased) by €6 million and €(3) million, respectively.

Up
to December 31, 2001, Repsol YPF assessed long-lived asset impairments in accordance with SFAS No. 121,Accounting for the Impairment
of Long-Lived Assets and for Long-Lived Assets to be Disposed of(SFAS 121). In 2001, Repsol YPF recorded impairment charges under both Spanish
and U.S. GAAP totaling €655 million, principally related to oil fields in Argentina primarily due to the impact of the "pesification" of domestic gas selling prices, and the
newly enacted oil export tax of 20%.

On
January 1, 2002, REPSOL YPF adopted SFAS No. 144,Accounting for the Impairment or Disposal of Long-Lived
Assets("SFAS 144"). SFAS 144 supersedes SFAS No. 121 and establishes a single accounting model for long-lived assets to be disposed of by sale
consistent with
the fundamental provisions of SFAS 121. Under SFAS No. 144, there is no longer a requirement to allocate goodwill to long-lived assets to be tested for impairment. It also
establishes a probability weighted cash flow estimation approach to deal with situations in which there are ranges of cash flows that may be generated by the asset being tested for impairment.

Under
Spanish GAAP, and consistent with the impairment model established in SFAS 144, the Company recorded, in 2002, impairment charges totaling
€410 million (Note 5). Of this total, €205.6 million relates to an impairment recorded for Mene Grande, an oil field in Venezuela. Such impairment
was recorded as a result of a downward revision in the estimate of the proved reserves and a change in Venezuelan regulation in respect of certain hydrocarbons exploration and production assets, which
has resulted in an increase of the royalties paid on oil and gas produced in Venezuela.

Additionally,
REPSOL YPF recorded in 2002 an impairment charge of €192.3 million on oil and gas exploration and production assets in Argentina, mainly for the gas
field of Aguarague, as a result of internal studies conducted that revealed a decrease in the proved reserves. The events that took place in 2002 revealing a decrease in the proved reserves were as
follows:



F-100

---





The
share of the total net proved reserves downward revisions declared by the concession's operator (Tecpetrol) attributable to the REPSOL YPF Group amounted to 17 millions of
barrels of oil equivalent (representing an 18% reduction from the previous estimate), thus triggering the impairment charge recorded in 2002.

The
remaining impairment charges in 2002 relate to other minor oil and gas fields. The fair value of all assets impaired has been determined using a discounted cash flow approach.

Under
Spanish GAAP, the above-mentioned impairment charges have been recorded as extraordinary items in the accompanying consolidated statement of operations. Under U.S. GAAP, these
charges would be included in income from continuing operations. The 2002 and 2001 asset impairments referred to above have been included in the "Exploration and Production" operating segment.

In
2003, under Spanish GAAP, impairment losses recognized in prior years for upstream properties, which were considered to be temporary, have been reversed (Note 5). Under U.S.
GAAP, and in accordance with SFAS 144, if an impairment loss is recognized on assets to be held and used, the adjusted carrying amount of the long-lived asset shall be its new cost
basis. Restoration of a previously recognized impairment loss is prohibited. Therefore, a U.S. GAAP adjustment is included in the reconciliation table to eliminate the impairment reversal recorded
under Spanish GAAP. The effect of this adjustment is to decrease shareholders' equity and net income as of and for the year ended December 31, 2003 by €187 million and
€209 million, respectively.

3. Fixed asset gross up due to tax basis difference and deferred tax liability due to fixed asset gross up

Under U.S. GAAP, a deferred tax liability or asset is recorded in accordance with the requirements of SFAS 109,Accounting for
Income Taxes, for differences between the assigned values and the tax basis of the assets and liabilities recognized in a purchase business combination. Spanish GAAP does not
require the recognition of deferred income taxes arising from fair value adjustments attributable to a purchase business combination.

The
principal such difference relates to oil and gas properties acquired. Recognition of the deferred tax liability on this basis difference increases the financial reporting basis of
the oil and gas properties by the same amount.

The
adjustment included in the reconciliation above relates mainly to the oil and gas properties of Astra acquired in 1998, those of YPF acquired during 1999, and those of Andina
acquired during 2001. Such basis differences are then amortized each year, and decreased for the corresponding portion of impairment charges recorded on these properties under Spanish GAAP.

Accordingly,
under U.S. GAAP, REPSOL YPF's property, plant and equipment (net of accumulated amortization) and deferred tax liability as of December 31, 2003 and 2002 should be
increased by €1,755 and €1,877 million respectively. Additionally, the effects for the periods ended December 31, 2003, 2002 and 2001 due to additional
amortization expense and portion of impairment charges should be a decrease in net income of €138 million, €271 million and
€310 million, respectively,

F-101

---



and
income tax expense for the corresponding periods should be decreased accordingly to reflect this change at the statutory tax rate of 35%.

Certain
prior year amounts in this adjustment have been reclassified for comparative purposes in order to report this adjustment together with its related tax effect.

4. Goodwill



Under Spanish GAAP, prior to December 31, 1997 the goodwill arising on business combinations was amortized over its estimated economic life subject to a
maximum of 10 years. Under U.S. GAAP, prior to January 1, 2002, REPSOL YPF amortized goodwill over the same estimated economic life.

In
1998, the maximum period permitted for amortization of goodwill under Spanish GAAP increased from 10 to 20 years. Accordingly, REPSOL YPF lengthened the estimated economic life
for goodwill arising on certain acquisitions prior to December 31, 1997. For U.S. GAAP, no change was made to the original estimated economic life of the goodwill. As a result of the difference
in useful lives, REPSOL YPF recorded under U.S. GAAP an additional expense of €23 million during the year ended December 31, 2001. As discussed in Item
4.5"Reversal of goodwill amortization and goodwill impairment", existing goodwill is no longer amortizable for U.S. GAAP purposes beginning January 1, 2002. Accordingly, the
difference in useful lives of goodwill no longer exists, and no adjustment is recorded to income in 2003 or 2002. Instead, REPSOL YPF has eliminated all goodwill amortization expense recorded under
Spanish GAAP during 2003 and 2002 in item 4.5 below.

Goodwill
arising on business combinations consummated from 1998 is being amortized over its estimated life subject to a maximum of 20 years under Spanish GAAP. For these business
combinations, there was no difference between the estimated economic life of goodwill for Spanish GAAP and U.S. GAAP purposes up to December 31, 2001.



Under Spanish GAAP, REPSOL YPF charged in 1999 against period income the expenses directly related to the acquisition of YPF shares, including fees and
commissions. Under U.S. GAAP, these amounts are part of the cost of acquisition and thus increased the goodwill recorded in the purchase. This adjustment recorded the additional goodwill under U.S.
GAAP, which was then amortized on a straight-line basis over a period of 20 years up to January 1, 2002.

Accordingly,
under U.S. GAAP, net income was decreased by €2 million for the year ended December 31, 2001. In 2003 and 2002, as goodwill is no longer
amortizable under U.S. GAAP as discussed in item 4.5"Reversal of goodwill amortization and goodwill impairment", there is no effect on net income and the effect in shareholder's equity
remains unchanged.



During 2000, REPSOL YPF finalized the allocation of the purchase price of YPF to the assets acquired and the liabilities assumed at June 1999. As a result
of this process, the goodwill initially recorded increased by €355 million under Spanish GAAP.

Under
U.S. GAAP, the period during which pre-acquisition contingencies can be recorded against goodwill may not exceed one year from the consummation of the business
combination. A significant

F-102

---



part
of the adjustments recorded by REPSOL YPF during 2000 were based on relevant information that became known in the second half of 2000. Accordingly, under U.S. GAAP, these adjustments were
recorded through net income in 2000, and amortization taken under Spanish GAAP on such goodwill up to December 31, 2001 was reversed in this adjustment.

As
goodwill is no longer amortizable under U.S. GAAP in 2003 and 2002 as discussed in item 4.5"Reversal of goodwill amortization and goodwill impairment", all goodwill
amortization expense recorded in 2003 and 2002 under Spanish GAAP is reversed in the reconciliation. Such adjustment has been included in item 4.5. Thus, there is no effect on 2003 or 2002 net income
from this adjustment, and the effect on shareholders' equity remains unchanged from the previous year



In June 2000, REPSOL YPF launched two exchange tender offers, pursuant to which the Group acquired an additional 31.48% stake in Astra CAPSA and an
additional 1.16% stake in YPF.

Under
Spanish GAAP, these transactions were accounted for as follows: once the number of new shares to be issued was determined in accordance with the corresponding exchange ratios,
additional paid-in capital was recorded for the difference between the underlying book value of the acquired interests and the capital increase. Accordingly, the acquisition cost (which
consisted of the capital increase plus additional paid-in capital) coincides with the underlying book value of the interests acquired and no significant goodwill arises.

Under
U.S. GAAP, the purchase method of accounting would apply to these transactions. Under this method, the excess of the acquisition cost (valued at the market price of the shares
issued by REPSOL YPF during a reasonable period before and after the terms of the acquisitions were agreed to and announced) over the fair value of the net assets acquired would be treated as
goodwill. Accordingly, under U.S. GAAP, goodwill and shareholders' equity (paid-in capital) as of December 31, 2001 was increased by €228 million, and net
income for the year ended December 31, 2001 was decreased by €12 million to reflect the additional goodwill amortization recorded under US GAAP.

As
goodwill is no longer amortizable under U.S. GAAP in 2003 or 2002 as discussed in item 4.5"Reversal of goodwill amortization and goodwill impairment", there is no effect
on 2003 or 2002 net income and the effect on shareholder's equity remains unchanged.



Effective January 1, 2002, REPSOL YPF adopted SFAS No. 142,Goodwill and Other Intangible Assets(SFAS 142). Under SFAS 142, goodwill is no longer amortized over its estimated useful life, but is
instead tested for impairment on an annual basis and whenever indicators of impairment arise. The goodwill impairment test, which is based on fair value, is performed on a reporting unit level.
Additionally, goodwill on equity method investments is no longer amortized; however, it will continue to be tested for impairment in accordance with Accounting Principles Board ("APB") Opinion
No. 18,The Equity Method of Accounting for Investments in Common Stock("APB 18").

Under
SFAS 142, intangible assets with indefinite lives will not be amortized. Instead they will be carried at the lower of cost or market value and tested for impairment at least
annually. All other recognized intangible assets will continue to be amortized over their estimated useful lives. REPSOL YPF does not have intangible assets with indefinite useful lives (see
Note 2.b and 4). Assuming no new acquisitions or disposals, REPSOL YPF estimates that the carrying amount of intangible assets as of

F-103

---



December 31,
2003 will be amortized on a straight-line basis over the remaining useful lives of the assets. Thus the estimated aggregate amortization expense for each of the five
succeeding fiscal years is approximately €120 million.

REPSOL
YPF has performed the transitional goodwill impairment test required by SFAS No. 142 as of January 1, 2002 and the annual goodwill impairment test as of
December 31, 2003 and 2002. As a result of these analyses, REPSOL YPF has determined that an impairment loss of €1,215 million (reported as the cumulative effect of a
change in accounting principle) is necessary to reduce the U.S. GAAP carrying value of the goodwill assigned to the Refining, LPG, Chemicals, and Natural Gas and Electricity reporting units as of
January 1, 2002. The analysis of the annual goodwill impairment tests did not result in any impairment loss on goodwill as of December 31, 2003 or 2002. The fair value of the reporting
units for which goodwill has been assigned was determined based on income and market approaches. The income approach used considered both the traditional cash flow and the expected cash flow methods.
The market approach considered examination of transactions of comparable enterprises. Goodwill in each reporting unit will be tested for impairment as of December 31 of every year.

As
a result, the application of this Standard has consisted of the recognition of the impairment mentioned above in 2002 and of the elimination under U.S. GAAP of all goodwill
amortization recorded in 2003 and 2002 under Spanish GAAP for consolidated entities and entities carried by the equity method (see Note 7). The balance in negative goodwill under Spanish GAAP
as of January 1, 2002 has not been eliminated in this adjustment since it related to the acquisition of Enagas and is already eliminated in item 10 of the reconciliation. Accordingly, net
income for the year ended December 31, 2003 and 2002 should be increased (decreased) by €142 million and €1,034 million, respectively (of which
€1,215 million represents the cumulative effect of a change in accounting principle) and shareholder's equity as of December 31, 2003 and 2002 should be decreased by
€619 million and €929 million, respectively (of which €1,093 million represents the cumulative effect of a change in accounting
principle).

The
changes in the carrying amount of goodwill arising on entities fully consolidated, under U.S. GAAP, for the year ended December 31, 2003 and 2002 are as follow:

|Changes in the amount of GoodwillUS GAAP |  | Exploration
and
Production |   | Refining
and
Marketing |   | Chemicals |   | Natural Gas
and
Electricity |   | Total  |  
|----------------------------------------- |  | -------------------------- | - | ---------------------- | - | --------- | - | --------------------------- | - | ------ | -
|Balance as of January 01, 2002            |  | 1,826                      |   | 1,506                  |   | 252       |   | 250                         |   | 3,834  |  
|Goodwill impairment at transition         |  |                           |   | (909                   | ) | (237      | ) | (69                         | ) | (1,215 | )
|Variations in scope of consolidation      |  |                           |   |                       |   |          |   | (177                        | ) | (177   | )
|Translation differences                   |  | (278                       | ) | (134                   | ) | (15       | ) | (4                          | ) | (431   | )
|Other movements                           |  | (3                         | ) | (8                     | ) |          |   |                            |   | (11    | )
|                                          |  |                            |   |                        |   |           |   |                             |   |        |  
|Balance as of December 31, 2002           |  | 1,545                      |   | 455                    |   | 0         |   | 0                           |   | 2,000  |  
|                                          |  |                            |   |                        |   |           |   |                             |   |        |  
|Goodwill impairment                       |  |                           |   |                       |   |          |   |                            |   | 0      |  
|Variations in scope of consolidation      |  |                           |   | (15                    | ) |          |   |                            |   | (15    | )
|Translation differences                   |  | (220                       | ) | (62                    | ) |          |   |                            |   | (282   | )
|Other movements                           |  |                           |   | (2                     | ) |          |   |                            |   | (2     | )
|                                          |  |                            |   |                        |   |           |   |                             |   |        |  
|Balance as of December 31, 2003           |  | 1,325                      |   | 376                    |   | 0         |   | 0                           |   | 1,701  |  
|                                          |  |                            |   |                        |   |           |   |                             |   |        |  

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The
pro-forma effect of applying SFAS 142 for the year ended December 31, 2001 is as follows:

|                                                      |  | Year ended
December 31,
2001
|----------------------------------------------------- |  | ----------------------------
|Reported net income under U.S. GAAP                   |  | 980                         
|Add back: Goodwill amortization Spanish GAAP          |  | 323                         
|Add back: Amortization on additional US GAAP goodwill |  | 21                          
|                                                      |  |                             
|Adjusted net income under U.S. GAAP                   |  | 1,324                       
|                                                      |  |                             
|Net income per share, under U.S. GAAP                 |  | 1.08                        
|                                                      |  |                             

5. Revenue recognition

Under Spanish GAAP, certain up-front non-refundable fees paid by clients in relation to natural gas and liquefied petroleum gas (LPG)
supply contracts are recorded as period income.

Under
U.S. GAAP, pursuant to the provisions of SAB No. 101,Revenue Recognition in Financial Statements, when such
up-front fees do not relate to products delivered or services rendered that represent the culmination of a separate earnings process, the revenue should be deferred over the expected
period of performance.

Up
to December 31, 2001, part of this adjustment included the effect of deferring the up-front fees charged by Gas Natural to its clients. In 2003 and 2002, as the
investment in Gas Natural should be carried under the equity method under U.S. GAAP, the portion relating to the deferral of natural gas up-front fees has been reclassified to item
20"U.S. GAAP adjustments of equity investees".

Accordingly,
under U.S. GAAP, REPSOL YPF should record a charge to net income of €2 million, €4 million, and
€29 million for the years ended December 31, 2003, 2002, and 2001, respectively. The effect of deferring such up-front fees on shareholders' equity results in
a decrease of
€52 million and €50 million as of December 31, 2003 and 2002, respectively.

6. Compensation arrangements



Since 2000, REPSOL YPF's Compensation and Senior Management Development Committee have been implementing medium and long term incentive plans (see
Note 23), based on the increase in REPSOL YPF's share price.

Under
Spanish GAAP, REPSOL YPF has recorded the corresponding compensation cost as the excess of the market price over the reference price of the incentive allocated linearly
pro-rata in the period of the plan.

Under
U.S. GAAP, in accordance with APB 25, this arrangement is treated as a compensatory variable plan. The compensation cost is measured as the excess of the quoted market price at
each balance sheet date over the exercise price.

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In
addition, under Spanish GAAP, in order to cover these disbursements REPSOL YPF arranged purchase options ("calls") to hedge these plans. As of December 31, 2002 REPSOL YPF
recorded these calls on the basis of their fair value (see Note 23) under the "other provisions" caption within long-term liabilities, since it represented a loss at that date.

Under
U.S. GAAP, in accordance with EITF Issue No. 00-19,Accounting for Derivative Financial Instruments Indexed to, and Potentially Settled
in, a Company's Own Stock, since these calls are contracts that require net-cash settlement and are classified as liabilities, they should be measured at fair
value, with changes in fair value reported in earnings. In addition, these calls have not been assigned as effective hedges under U.S. GAAP.

Accordingly,
as of December 31, 2003, 2002 and 2001, the differences between Spanish and U.S. GAAP in the accounting treatment followed in respect of the medium and
long-term incentive plans have not been material to the Company's financial position or results of operations.



In 2003, the REPSOL YPF's Compensation and Senior Management Development Committee approved an incentive plan tied to medium and long-term objectives
based on the Company's 2003-2007 Strategic Plan (see Note 23). Under Spanish GAAP, a provision of €5.1 million was recorded in 2003 to meet the commitments
arising from this plan.

Under
U.S. GAAP, compensation for this type of variable plan is accrued as a charge to expense over the period or periods the employee performs the related services, and up to the end of
the required service period, only when it is probable that the performance goals will be achieved, in accordance with FASB Interpretation No. 38,Determining the
Measurement Date for Stock Option, Purchase, and Award
Plans Involving Junior Stockan Interpretation of APB Opinion No. 25. Prior to the final measurement date, interim measures of compensation expense should be
based on the company's best estimate of the compensation that will eventually be granted to employees upon achievement of the specified performance criteria, to the extent that such criteria is not
based upon achieving a set market price, or upon achievement of some other discrete event, in which case compensation should be recorded when the target is achieved. Therefore, because the plan
referred to above is tied to the achievement of specific medium and long-term objectives whose probability of occurrence is not assured, the provision recorded in 2003 under Spanish GAAP
is reversed, and will be recorded as the objectives are met.

7. Interest rate swaption

As described in Note 23, REPSOL YPF wrote an option on an interest rate swap (swaption) which reflected the call option embedded within the US$
725 million of preferred shares issued in 1997 by Repsol International Capital, a subsidiary of Repsol International Finance B.V. Under Spanish GAAP, the premium received had been recorded as
deferred income and was being amortized to income on a straight-line basis over the term of the swaption.

Under
U.S. GAAP, written options must be marked-to-market, with the movement in the mark-to-market valuation recorded in the consolidated
statements of income. Accordingly, had U.S. GAAP been applied, net income for the year ended December 31, 2001 should be increased by €2 million.

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In
October and November of 2002, the purchasers of the written options exercised their right to enter into the interest rate swap agreement (Note 23). As a result, under Spanish
GAAP, REPSOL YPF assigned this swap to hedge the cash flow generated by the issues of preferred shares in euros and recorded a liability against net financial expense, which reflected the
mark-to-market of the swap as of the date of commencement of the hedge, net of the amount of the unamortized premium.

Under
U.S. GAAP, the interest rate swap entered into as a result of exercising the option has to be recorded at fair value at the balance sheet date in accordance with SFAS
No. 133,Derivatives and Hedging Activities("SFAS 133"). Therefore, any adjustment related to this interest rate swap has been included
in item 14"Derivative instruments and hedging activities" for the years ended December 31, 2003 and 2002. The adjustment has been included within "other derivative contracts",
since the hedge assignation under Spanish GAAP is not permissible under U.S. GAAP, due to the fact that the preferred shares are classified as "minority interest in a consolidated subsidiary".

8. Deferred Start-up Activities Costs

Under Spanish GAAP, REPSOL YPF capitalizes certain start-up and organization costs and other deferred charges within the "deferred expenses" caption
of the Spanish GAAP balance sheet and amortizes them over a period of five to seven years (Note 2f and Note 8).

Under
U.S. GAAP, Statement of Position ("SOP") No. 98-5,Reporting on the Costs of Start-Up Activities,
requires the costs of start-up activities and organization costs to be expensed as incurred.

Accordingly,
under U.S. GAAP net income for the years ended December 31, 2003, 2002 and 2001, should be increased by € 8 million,
€3 million and €55 million, respectively.

9. Costs related to stock issues

Under Spanish GAAP, REPSOL YPF capitalized, under the caption "start-up expenses" in the Spanish GAAP consolidated balance sheet, the direct expenses
relating to the two capital stock issues carried out during 1999 (Note 2a and Note 3) and is amortizing such costs over five years. Under U.S. GAAP, direct costs related to the issuance
of capital stock must be deducted from the proceeds of the new capital.

Accordingly,
under U.S. GAAP, net income in each of the years ended December 31, 2003, 2002 and 2001 should be increased by €38 million for the reversal of
the Spanish GAAP amortization, and shareholders' equity should be reduced by €23 million, and €61 million, as of December 31, 2003 and 2002,
respectively, to eliminate the balance in the "start-up expenses" caption.

10. Acquisition of Enagas

When Gas Natural (a 27.147% and 24.04% owned subsidiary of REPSOL YPF as of December 31, 2003 and 2002, respectively) acquired its original 91% interest in
Enagas, it was granted an option to purchase the remaining 9% of Enagas at a fixed price. Accordingly, following the original acquisition, Gas Natural recorded a minority interest of 9% with respect
to Enagas in its consolidated income statement. Under Spanish GAAP, when Gas Natural finally exercised its option to acquire the remaining 9% of Enagas in 1998, it recorded negative goodwill and
released to income, as of that date, the amount that REPSOL YPF would have realized if it had acquired the 9% interest at the same date as the original 91% stake.

F-107

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Under
U.S. GAAP, the exercise of this option would be treated as the acquisition of a minority interest pursuant to APB Opinion No.16,Business
Combinations. As a result, the negative goodwill arising from the difference between the amounts paid and the carrying value of the minority interest would be allocated to
property, plant and equipment and recorded at the date that the option was exercised.

In
2002, REPSOL YPF sold 23% of its participation in Gas Natural (thereby reducing its holding in Gas Natural to 24.04% as of December 31, 2002), and thus the investment should be
accounted for under the equity method under U.S. GAAP (see item 20"U.S. GAAP adjustments of equity investees"). As a result, beginning in 2002, the U.S. GAAP adjustments from Gas Natural
are being presented as a separate line item in the U.S. GAAP reconciliation. Therefore, the effect of this adjustment in 2003 and 2002 has been reclassified to item 20"U.S. GAAP
adjustments of equity investees".

11. Revenues from gas distribution infrastructure

Under Spanish GAAP, prior to 1995, Gas Natural recorded as income for the period the value received in respect of gas distribution branches and infrastructure
from its customers.

Under
U.S. GAAP, the corresponding amounts would be accounted for as deferred revenues, and would be credited to income according to the useful life of the assets to which they relate.
Up to December 31, 2001, the effect of this deferral was included in this line item of the US GAAP reconciliation. Net income for the year ended December 31, 2001 should be increased by
€1 million. The effect of this adjustment in 2003 and 2002 has been recorded in item
20"U.S. GAAP adjustments of equity investees", as Gas Natural is carried by the equity method under U.S. GAAP.

12. Translation differences related to disposals

During 2003, 2002 and 2001, the REPSOL YPF Group sold its participation in some foreign affiliates. Under Spanish GAAP, the accumulated translation differences
related to foreign affiliates that are disposed of are reclassified from translation differences to reserves upon their sale.

Under
U.S. GAAP, upon sale of the investment in a foreign entity, the amount attributable to that entity and accumulated in "Translation differences" must be removed from this caption
and must be reported as part of the gain or loss on sale or liquidation of the investment, in accordance with SFAS No. 52,Foreign Currency
Translation("SFAS 52"). As a result of this difference, under U.S. GAAP, net income for the years ended December 31, 2002 and 2001, should be increased by
€7 million, and €26 million, respectively. There is no effect on shareholders' equity.

In
addition, due to sale of its participation in Gas Natural in 2002 (see Note 1.f), a portion of the accumulated translation differences related to foreign affiliates of Gas
Natural has been removed from this caption and reported as part of the gain or loss on sale of this investment, as explained in item 20"U.S. GAAP adjustments of equity investees", as Gas
Natural should be accounted for under the equity method under U.S. GAAP.

F-108

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13. Andina Asset Swap

On February 15, 2001, YPF entered into an asset swap agreement with Pecom Energía S.A. ("Pecom") whereby YPF received an additional 20.25%
stake in Empresa Petrolera Andina ("Andina") and 50% in the areas Manantiales Behr and Restinga Alí, and in return transferred to Pecom its participation in the areas Santa Cruz I
(30%), and Santa Cruz II (62.2%) and other minor assets. At the same time, YPF also acquired from Pluspetrol Resources an additional stake in Andina of 9.5% for €154 million
($142 million), resulting in a total participation by YPF in Andina of 50% at December 31, 2001. The total value of the net assets exchanged in these transactions was
$435 million.

Under
Spanish GAAP, the transaction was recorded at the book value of the assets exchanged, and thus no gain or loss was recognized on the transaction. Under U.S. GAAP, the transaction
should be recorded at the fair value of the assets received or transferred (whichever is more readily determinable) in accordance with APB Opinion No. 29,Accounting for
Non-monetary Transactions, as interpreted by Emerging Issues Task Force ("EITF") No. 01-02,Interpretations of APB
Opinion No. 29,because of the different nature of the assets exchanged (a productive area vs. shares of a company). As a result, a gain of
€107 million was recorded under U.S. GAAP for this transaction in the year ended December 31, 2001. The effect on net income for the years ended December 31, 2003
and 2002 was €(1) million and €(1) million, respectively, as a result of the higher financial reporting basis of the properties acquired and thus higher amortization
charges recorded under U.S. GAAP.

14. Derivative instruments and hedging activities

Under U.S. GAAP, REPSOL YPF adopted, effective January 1, 2001, SFAS No. 133,Accounting for Derivative Instruments and
Hedging Activities, as amended ("SFAS 133"), which establishes accounting and reporting standards for derivative instruments, including certain derivative instruments
embedded
in other contracts (embedded derivatives) and for hedging activities. SFAS 133 requires that all derivatives, whether designated in hedging relationships or not, be recorded on the balance
sheet at fair value. The difference between a derivative's previous carrying amount and its fair value as of January 1, 2001 shall be reported as a transition adjustment in net income or other
comprehensive income ("OCI"), as appropriate, as the cumulative effect of a change in accounting principle. The accounting for changes in fair value of a derivative instrument depends on its intended
use and the resulting designation.

If
the derivative is designated as a fair value hedge, the changes in the fair value of the derivative and of the hedged item attributable to the hedged risk are recognized in earnings.
If the derivative is designated as a cash flow hedge, the effective portions of changes in the fair value of the derivative are recorded in OCI and are recognized in the income statement when the
hedged item affects earnings. Ineffective portions of changes in the fair value of cash flow hedges are recognized in earnings. The gain or loss on a hedging derivative instrument that is designated
as, and is effective as, an economic hedge of the net investment in a foreign operation shall be reported in the same manner as a translation adjustment to the extent it is effective as a hedge. The
ineffective portion of net investment hedges shall be reported in earnings.

Upon
adoption of SFAS 133 on January 1, 2001, REPSOL YPF designated all its hedging relationships anew. The adoption resulted in a pre-tax reduction to income
of €2 million and a pre-tax reduction to OCI of €14.2 million. For the amounts classified as OCI, €1.6 million related
to the

F-109

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effective
portion of cash flow hedges, the total of which were reclassified into earnings during 2001; and €12.6 million related to the effective portion of net investment
hedges.

The
adjustments recorded in order to apply SFAS No. 133 for the periods ended December 31, 2003, 2002, and 2001, net of minority interest, are set forth below:

|                                                                           |  | Millions of Euros |  
|-------------------------------------------------------------------------- |  | ----------------- | -
|
|
|
|Derivatives instruments not qualified as net investment hedge in U.S. GAAP |  | (150              | )
|Adjustment to record net investment hedge instruments at their fair value  |  |                  |  
|Recognition of embedded derivatives at fair value                          |  | (130              | )
|Recognition of others derivatives at fair value                            |  | 4                 |  
|                                                                           |  |                   |  
|Total effect of adjustments to apply SFAS No. 133                          |  | (276              | )
|                                                                           |  |                   |  



As part of its overall risk management strategy, REPSOL YPF uses some swap and forward contracts on products to hedge against variations in product price of firm
commitments. These derivatives are typically designated as fair value hedges, to manage the price risk on firm commitments.

Under
Spanish GAAP, derivatives designated as fair value hedges are not recorded as assets or liabilities at fair value, but are instead recorded in the income statement as the hedged
item impacts earnings. Under U.S. GAAP, all derivatives, whether designated in hedging relationships or not, are recorded on the balance sheet at fair value. Additionally, those hedging relationships
that are
designated as fair value hedges under U.S. GAAP, including firm commitments, have their respective hedged items recorded at fair value and all hedge ineffectiveness is included in earnings.

For
the years ended December 31, 2003, 2002, and 2001, the Company's subsidiary, YPF, has entered into a limited number of fair value hedges to protect the fair value of certain
forward oil sales contracts (Note 23) from the variability caused by the fluctuations in crude oil prices. The difference between Spanish and U.S. GAAP represents an increase in current and
non-current liabilities of €154 million, €129 million, and €53 million for the years ended December 31, 2003,
2002 and 2001, respectively, related to the recording at fair value of the hedged item; and a corresponding increase in current and non-current financial assets of
€154 million, €129 million, and €53 million for the years ended December 31, 2003, 2002 and 2001, respectively, related to
recording at fair value the derivative instrument. The aforementioned effects have been recorded with an offset to the "other income / expense" caption.

The
Company had no material ineffectiveness recorded in earnings during those years, since the derivative instruments have been contracted for the same term, price and quantities as the
respective

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hedged
items. REPSOL YPF does not exclude any components of the derivative gains and losses from the assessment of hedge effectiveness.



REPSOL YPF's policy is to attempt to finance its activities in the functional currency of its foreign investments in order to hedge its foreign currency exposure.
This policy is implemented either by financing in the related currency or using derivatives, such as currency swaps, which provide an equivalent effect of a foreign currency loan, thereby reducing the
exchange risk.

For
the year ended December 31, 2003 and 2002, approximately €1,566 million, and €1,482 million, respectively, of net gains (losses)
related to non-derivative instruments and derivative instruments used as net investment hedges with the U.S. dollar as the functional currency were included as a cumulative translation
adjustment in the consolidated statements of comprehensive income. These net gains or losses principally offset the net gains (losses) recorded on the respective net investments in foreign currencies
being hedged. The hedge instruments used by REPSOL YPF did not result in any ineffectiveness since their notional amounts were less than or equal to the net investment being hedged as of the beginning
of each quarter, and the currencies of the hedging instrument and hedged item were the same.

Those
derivatives that did not qualify under U.S. GAAP as a net investment hedge instrument have been recorded as other derivatives with effects in earnings.

The
breakdown of the hedging instruments, their recorded amounts and the amount accounted under the Cumulative Translation Adjustment caption are as follows:

|                                                                    |  | Millions of Euros
|------------------------------------------------------------------- |  | -----------------
|
|
|Recorded amount as of December 31, 2002                             |  | 3,378            
|Impact in cumulative translation adjustment as of December 31, 2002 |  | 772              
|Recorded amount as of December 31, 2003                             |  | 3,591            
|Impact in cumulative translation adjustment as of December 31, 2003 |  | 877              



A portion of REPSOL YPF's subsidiary's (Gas Natural) expected product purchases are denominated in foreign currency. Gas Natural uses foreign currency forward
exchange contracts that expire in less than twelve months to hedge against the effect that fluctuation in exchange rates may have on cash flows associated with these purchases. In addition, Gas
Natural has purchased cash-settled call options indexed to its own stock, that expire within less than four years, to hedge the exposure to variability in expected future cash flows
attributable to changes in its stock price that arises in nonvested stock appreciation rights. The time value of the purchased call options is excluded from the assessment of hedge effectiveness.

Furthermore,
REPSOL YPF has entered into a limited number of transactions, primarily swap contracts on products, in order to hedge against the variability in cash flow due to crude oil
prices and

F-111

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currency
rates of forecasted transactions. Since these transactions were not designated as cash flow hedges under U.S. GAAP, the related derivative was treated as "other derivatives instruments".

Under
U.S. GAAP, those hedging relationships which are designated as cash flow hedges have their respective effective portion of the gain or loss recorded in other comprehensive income
until it is necessary to be adjusted against net income in order to offset the respective change in expected future cash flows on the hedged transaction. All of the ineffective portion and excluded
component of the derivative instruments is included in earnings.

As
of December 31, 2003 the total amount to be reclassified into earnings during the next 12 months is not material.

For
the years ended December 31, 2003, 2002 and 2001, REPSOL YPF had no material ineffectiveness recorded in earnings relating to cash flow hedges, including the time value of
options contracts. All components of each derivative's gain or loss were included in the assessment of hedges effectiveness, except the time value of option contracts. The effect of this adjustment
for 2003 and 2002 relating to Gas Natural has been recorded in item 20"U.S. GAAP adjustments of equity investees", as this affiliate should be accounted for under the equity method under
U.S. GAAP.



REPSOL YPF has entered into various contracts which may contain "embedded" derivative instrumentsimplicit or explicit terms that affect some or all
of the cash flows or the value of other exchanges required by the contract in a manner similar to a derivative instrument and which, according to the requirements of SFAS 133, need to be
bifurcated from the host contract and accounted for as a derivative instrument. REPSOL YPF has assessed the existence of potential embedded derivatives contained in its contracts entered into or
substantively modified since January 1, 1999. Embedded derivatives in contracts not designated as a hedge instrument that required bifurcation were recorded at their fair value, and their
impact on net income, net of minority interest, for the years ended December 31, 2003, 2002, and 2001 was a loss of €130 million,
€ 98 million, and €31 million, respectively.



REPSOL YPF holds various interest rate, foreign exchange and commodity derivative instruments, which were not formally designated under SFAS 133 for the
application of hedge accounting. The purpose of entering into these derivative contracts is to provide REPSOL YPF with economic hedges of market risk exposures.

REPSOL
YPF enters into other hedging contracts used primarily to mitigate the effects of crude oil price fluctuations for a portion of the future years' purchase transactions, as well as
crude oil price options intended to hedge long-term crude oil sales contract, and crude oil price swaps and other instruments used to mitigate crude oil price risks. The purpose of
entering into these derivative contracts is to provide REPSOL YPF with economic hedges of exposed risks. REPSOL YPF has decided not to formally designate these contracts as hedges of specific assets,
liabilities, firm commitments or anticipated transactions under the provisions of SFAS 133.

F-112

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Under
Spanish GAAP these derivatives are recorded at the lower of cost or market value. Under U.S. GAAP all derivatives not designated as certain hedges are recorded on the balance sheet
at fair value with all changes in fair value being recorded as a component of income from continuing operations during the period that such contracts remain outstanding.

In
the normal course of operations REPSOL YPF is involved in energy trading and risk management activities as defined by EITF Issue No. 98-10, Accounting for Contracts Involved in Energy Trading and Risk Management
Activities, as superseded by EITF Issue No. 02-03, Issues Involved in Accounting for Derivative Contracts Held for Trading Purposes and Contracts Involved in energy Trading and Risk Management
Activities("EITF 02-03"). EITF 02-03 requires that all contracts entered into for trading purposes by an entity involved in such activities (energy trading contracts) and contracts
considered to be derivatives pursuant to Statement 133 should be measured at fair value and recorded in the consolidated balance sheet with gains and losses included in current earnings. Gains and
losses on energy trading contracts and contracts considered to be derivatives pursuant to Statement 133 are classified as other income or other expense. EITF 02-03 applies to all energy
trading contracts and not just those that meet the definition of a derivative.

As
of December 31, 2003 and 2002, REPSOL YPF did not have any open energy trading contracts that pursuant to EITF No. 02-03 should be marked to market.

Derivative
instruments are reported on a net-by-counterparty basis on the consolidated balance sheet when management believes a legal right of setoff exists under
an enforceable netting agreement. The approximate fair value of these other derivatives used as economic hedges, but not designated under SFAS 133 as a hedge instrument, is set forth below:

|                             |  | Millions of Euros |  | Millions of Euros
|---------------------------- |  | ----------------- |  | -----------------
|
|
|Interest rate collar         |  | 75.7              |  |                 
|Future contracts on products |  |                  |  |                 
|Swap contracts on products   |  | 2                 |  |                 
|Interest rate swap           |  |                  |  | 186.3            
|Others                       |  |                  |  | 1.0              

15. Reversal of involuntary conversion in Argentina

On February 3, 2002, the Argentine government issued a decree that (1) eliminated the fixed exchange rate; (2) established one free floating
exchange rate for the Argentine peso; and (3) required U.S. dollar-denominated obligations to be converted to peso-denominated obligations using mandated conversion rates, depending
on the type of obligation. The market for the floating exchange rate opened on January 11, 2002.

Under
the Spanish GAAP principle of prudence, and in accordance with the requirements of the Spanish Accounting and Audit Institute (ICAC), those U.S. dollar-functional entities with
U.S. dollar-denominated payables or receivables that were involuntarily converted to pesos by the emergency order on February 3, 2002 had the effects of this conversion recorded during the year
ended December 31,

F-113

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2001.
Under Spanish GAAP this event was considered a subsequent event that occurred after year-end but confirmed a condition that existed prior to year-end, therefore requiring
that the year-end financial statements be adjusted to reflect the most current information about this loss. Under U.S. GAAP, the effects of this conversion was considered an event
occurring after the balance-sheet date that were indicative of conditions that did not exist at the balance-sheet date, since at such date there was not any indication of such "pesification" of assets
and liabilities. As such, the net income for the years ended December 31, 2002 and 2001 should be increased/(decreased) by €129 million and
€(137) million, respectively, and at December 31, 2003 and 2002, there is no difference between Spanish and US GAAP in shareholders' equity for this concept.

16. Pension plan additional minimum liability

As displayed in the "Additional Disclosures" section of this note, YPF has a non-contributory defined benefit pension plan with an accumulated benefit
obligation ("ABO") in excess of the fair value of plan assets. According to SFAS No. 87,Employer's Accounting for Pensions("SFAS 87"), if the
ABO exceeds the fair value of plan assets, the employer shall recognize in the consolidated balance sheet a liability that is at least equal to the unfunded ABO. Recognition of an additional minimum
liability is required if an unfunded ABO exists and (a) an asset has been recognized as prepaid pension cost, (b) the liability already recognized as unfunded accrued pension cost is
less than the unfunded ABO, or (c) no accrued or prepaid pension cost has been recognized.

Under
Spanish GAAP, the Company has recorded the additional minimum liability referred to above against an expense account in the consolidated statements of operations for the years
ended December 31, 2003 and 2002. Under U.S. GAAP, the same liability is required, but its offsetting debit is recorded as a component of other comprehensive income. As such, net income for the
years ended December 31, 2003 and 2002 is increased by €11 million and €53 million, respectively, with no effect on shareholder's equity as of
December 31, 2003 or 2002.

17. Foreign currency exchange gains

Under Spanish GAAP, unrealized gains on foreign currency transactions are not recognized as income and are instead recorded in the liability side of the balance
sheet under "Deferred revenues". However, if exchange losses in the same homogeneous group have been charged to income in prior years or in the current year, unrealized gains can be credited to income
in the amount that would result from reducing those losses by the gains recognized in prior years. As of December 31, 2003 and 2002, REPSOL YPF has applied this accounting principle and has
certain unrealized foreign currency transaction gains that cannot be compensated with corresponding losses, which have been included within "deferred revenues" (Note 13).

Under
US GAAP, foreign currency transactions gains or losses, whether realized or unrealized, generally shall be included in determining net income for the period in which the exchange
rate changes, in accordance with SFAS 52.

F-114

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As such, net income for the years ended December 31, 2003 and 2002 should be increased by €87 million and
€76 million, respectively.

18. Functional currency of YPF

Under Spanish GAAP, up to December 31, 2002, REPSOL YPF considered some components of its operating segments in Argentina to have as their functional
currency the Argentine peso. Under U.S. GAAP, REPSOL YPF performed an analysis of its subsidiary, YPF, as an entire entity, and considered the U.S. dollar as the functional currency of that subsidiary
as a whole. As such, an adjustment under U.S. GAAP is included in order to record YPF as a whole using the U.S. dollar as its functional currency. During 2003, REPSOL YPF has also determined, under
Spanish GAAP, the U.S. dollar to be the functional currency of YPF as whole. This difference results in an increase in shareholder's equity of €550 million and
€646 million as of December 31, 2003 and 2002, respectively.

19. Asset retirement obligations

As of January 1, 2003 Repsol YPF adopted, under U.S. GAAP, SFAS No. 143 (SFAS 143),Accounting for Asset Retirement
Obligations. The primary impact of SFAS 143 is to change the method of accruing for upstream site restoration costs. These costs were previously accrued ratably over the
productive lives of the assets and were allocated to income each year based on production with respect to the proved reserves under both Spanish and US GAAP (see note 2c.3). At the end of 2002,
the cumulative amount accrued was approximately €125 million (see note 14), and principally relate to offshore oil and gas platforms. Under SFAS 143, the fair
values of asset retirement obligations are recorded as liabilities on a discounted basis when they are incurred, which is typically at the time the assets are installed. Amounts recorded for the
related assets will be increased by the amount of these obligations. Over time the liabilities will be accreted for the change in their present value and the initial capitalized costs will be
depreciated over the useful lives of the related assets.

The
cumulative effect adjustment for the change in accounting principle is after tax income of €6.83 million, resulting from adjusting the liability accumulated
under SFAS 19 in order to record it at the amount required by SFAS 143. As of December 31, 2003, the effect of the application of SFAS 143 on the balance sheet was a
€43.7 million increase to property, plant and equipment, and a €30.1 increase to accrued liabilities, with its corresponding tax effects.

Had
SFAS 143 been in effect in 2002, net income that would have been reported would not have been materially different from the net income that was reported. In fact, the effect
on net income in 2003, as detailed above, has not been material to the Group's results of operations.

20. U.S. GAAP adjustments of equity investees

As disclosed in Note 1.f, REPSOL YPF reduced its holding in Gas Natural from 47.04% to 24.04% on May 23, 2002. As such, REPSOL YPF changed its
method of accounting for Gas Natural under Spanish GAAP from the global integration method to the proportional integration method since May of 2002. For U.S. GAAP purposes, Gas Natural (a significant
subsidiary of REPSOL YPF) would be deconsolidated and accounted for under the equity method from such date (see item "Classification differences and otherProportional Integration" in this
Note). In addition, REPSOL YPF reduced in

F-115

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2002
its holding in CLH from 59.62% to 31.03%. Additionally, REPSOL YPF reduce its investment in CLH to 25% during 2003.

Starting
in 2002, this reconciling item includes the U.S. GAAP adjustments to the net income and shareholders' equity of investments that would be accounted for under the equity method
of accounting pursuant to APB 18, mainly resulting from Gas Natural and CLH. The U.S. GAAP adjustments attributable to Gas Natural and CLH in prior years were included in the appropriate line items by
adjustment concept, since these companies were fully consolidated in those periods. The U.S. GAAP adjustments of these equity investees refer to similar concepts as the REPSOL YPF's U.S. GAAP
adjustments. The effect of these adjustments on net income totaled €8 million and €60 million for the years ended December 31, 2003 and 2002,
respectively.

Due
to the effects of the US GAAP adjustments of Gas Natural and CLH on Repsol YPF's shareholders' equity, Repsol YPF had, prior to their sale, a different carrying amount under Spanish
and US GAAP for these investments. Therefore, in 2003 and 2002, upon their sale, an additional gain on disposal of shareholdings of €1 million and
€120 million, respectively, has been recognized under US GAAP and has been included within this reconciling item.

Furthermore,
this adjustment includes the reversal of equity goodwill amortization (Note 7), in accordance with SFAS 142, which represented an increase in net income for
the years ended December 31, 2003 and 2002 of €33 million and €119 million, respectively, as well as the inclusion in net income of translation
differences related to disposals, which represented a decrease in 2002 net income of €52 million. See item 4.5"Reversal of goodwill amortization and goodwill
impairment" and item 12"Translation differences related to disposals".

Accordingly,
the net effect of the above has resulted in an increase in shareholders' equity of €67 million and €24 million as of
December 31, 2003 and 2002, respectively, and an increase in net income of €42 million and €247 million for the years ended December 31,
2003 and 2002, respectively.

21. OthersRepsol Garantizado

In the July 1999 share issuances of REPSOL YPF, the Group employees resident in Spain were offered two products (the Repsol Garantizado schemes) under
which the employee was hedged during a three-year period against a possible decline in the market value of his/her shares below the initial level. The Repsol Garantizado schemes have
expired and have been fully liquidated in July 2002.

Under
U.S. GAAP, the Repsol Garantizado schemes were considered a compensatory variable plan. Pursuant to the provisions of APB 25, the compensation cost would be measured as the
difference between the initial reference price and the quoted market price at each balance sheet date, taking into consideration the hedging premiums received by REPSOL YPF from the employees. The
compensation cost to be recorded under U.S. GAAP for the year ended December 31, 2001 amounted to €6 million.

Additionally,
the forward sale contracts that REPSOL YPF entered into would be marked to market through earnings under U.S. GAAP. The mark-to-market of the
forward contracts which remained open at each year-end plus the net accumulated effect on contracts settled as of December 31, 2001 amounted to €7 million.

F-116

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Accordingly,
the U.S. GAAP adjustment to net income for the year ended December 31, 2001 should be a decrease of €1 million. No adjustment has been recorded
in 2002 or 2003, as the plans have expired and have been fully settled.

22. Tax effect of the above adjustments and deferred taxation under SFAS No. 109

The accounting rules that are applicable under Spanish GAAP in relation to the recording of income taxes differ from those under U.S. GAAP with respect to when
deferred tax assets and liabilities are recognized and, secondly, in the disclosures required.

The
principal differences between REPSOL YPF's accounting policy for deferred tax accounting and U.S. GAAP (SFAS 109) are:



In
addition tax effects are computed on the differences arising from taxable adjustments to U.S. GAAP, since they are considered to be temporary differences to be accounted for under
SFAS No. 109.

The
following is a reconciliation of the income tax provision under Spanish GAAP to that under U.S. GAAP:

Millions of Euros2003

2002

2001Income tax provision under Spanish GAAP

1,048

564

988Tax effect of U.S. GAAP adjustments and deferred taxation under SFAS 109 (1)

34

(97
)
(121
)Income tax provisions under U.S. GAAP

1,082

467

867


---

F-117

---



Deferred
tax assets and liabilities as of December 31, 2003 and 2002 were as follows:

|                                      |  | Millions of Euros |  | Millions of Euros
|------------------------------------- |  | ----------------- |  | -----------------
|
|
|
|Balance under Spanish GAAP (Note 15): |  |                   |  |                  
|Current                               |  | 15                |  |                 
|Noncurrent                            |  | 909               |  | 674              
|                                      |  |                   |  |                  
|                                      |  | 924               |  | 674              
|                                      |  |                   |  |                  
|Adjustments under U.S. GAAP (1)       |  |                   |  |                  
|Derivatives and hedging activities    |  | 82                |  |                 
|Functional currency of YPF            |  | 70                |  |                 
|Costs related to stock issues         |  | 8                 |  |                 
|Revenue recognition                   |  | 18                |  |                 
|Foreign currency exchange gains       |  |                  |  | 57               
|Other deferred taxes                  |  | 18                |  | 39               
|                                      |  |                   |  |                  
|Net deferred taxes under U.S. GAAP    |  | 1,120             |  | 770              
|                                      |  |                   |  |                  

---

The
deferred tax assets arose mainly from:

|                                                                                                                                                                          |  | Millions of Euros
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | -----------------
|
|Provisions for internal pension allowances which, under Spanish tax regulations, are not tax-deductible until effectively paid or contributed to an external pension fund |  | 10               
|Provisions for personnel restructuring plans, which become tax-deductible when they are effectively paid                                                                  |  | 14               
|Accounting basis for bad debt reserves in excess of tax basis                                                                                                             |  | 15               
|Tax basis for depreciation of property in excess of accounting basis                                                                                                      |  | 29               
|Tax loss carryforwards (1)                                                                                                                                                |  | 554              
|Functional currency of YPF                                                                                                                                                |  | 70               
|Costs related to stock issues                                                                                                                                             |  | 8                
|Revenue recognition                                                                                                                                                       |  | 18               
|Derivatives and hedging activities                                                                                                                                        |  | 82               
|Other provisions                                                                                                                                                          |  | 68               
|Other deferred tax assets                                                                                                                                                 |  | 252              
|                                                                                                                                                                          |  |                  
|                                                                                                                                                                          |  | 1,120            
|                                                                                                                                                                          |  |                  

---

F-118

---



The
deferred tax liabilities arose mainly from:

Millions of Euros2003

2002Accounting basis for depreciation of property in excess of tax basis

331

210Tax basis for financial expenses in excess of accounting basis as a consequence of hedging operations

87

59Deferred taxes arising from re-investment of profits in new tangible assets

48

62Foreign currency exchange gains

57

27Other deferred tax liabilities

247

219770

577




The preparation of financial statements in conformity with Spanish GAAP as well as the additional note on differences between Spanish GAAP and U.S. GAAP and other
required disclosures requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.



The following disclosures have been provided as a supplement to the accounting policies described in the notes to the primary financial statements.

Repsol
YPF follows the "successful efforts" method of accounting for its oil and gas exploration and production operations. Accordingly, the accounting treatment provided to the
different costs incurred is as follows:



F-119

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The
amounts capitalized pursuant to the above paragraphs are depreciated as follows:

In
accordance with generally accepted accounting principles on long-term fixed asset depreciation, whenever an indication exists that they might be impaired, and undiscounted
future cash flows do not exceed book value, the Company compares, if appropriate, the market value or the discounted future cash flows from its proved and unproved reserves (the latter of which are
subject to a risk factor) in each field owned by the Company at year-end with the net book values of the assets relating thereto. Any resulting write-down is recorded as a charge to
income.

F-120

---





Exploration investments in progress and those financed by the Spanish State pending classification as unsuccessful are recorded under this caption and are
presented in the consolidated financial statements as follows:



With regards to the operations of the REPSOL YPF Group, the accounting under Spanish GAAP of revenues and expenses related to shipping and handling fees and costs
does not present differences with U.S. GAAP. Where applicable, amounts billed to customers for shipping and handling have been included in the income statement as operating revenues. In those
instances, the costs associated with such revenues that have been incurred with third parties have been included in the income statement as operating expenses under the "Transport and freight"
caption. Also, and consistent with the above criteria, under Spanish GAAP, where applicable, reimbursements received from customers for "out-of-pocket" expenses incurred have
been included as operating revenues, while the associated costs have been recorded separately as operating expenses. This accounting treatment is consistent with U.S. GAAP as regulated in EITF
01-14.

In
addition, with regards to the operations of the Repsol YPF Group, in the limited instances where, in accordance with the economic substance of the activity, the Group operates as an
agent (i.e. operation of service stations for third parties, etc.) rather than as the principal, revenue is recognized under Spanish GAAP on a net basis, and, therefore, only the corresponding
commission or fee earned from the sale is accounted for as revenue, instead of recording the gross amount billed. This accounting treatment is consistent with US GAAP as regulated by EITF
99-19.



Included below is a summarized discussion of the activities and the corresponding accounting treatment provided to the service stations based on the existing
differences in ownership or levels of

F-121

---



control.
No differences have been identified in this respect between the accounting treatment provided under Spanish GAAP and US GAAP.



Those service stations which are referred to as "Controlled by REPSOL YPF" or "strong links" encompass the two following situations:





This category includes dealer-owned, dealer-operated (DODO) service stations. These stations are owned by third parties with which REPSOL YPF has signed a
contract that entitles it (i) to become the exclusive supplier and (ii) to brand the service station with its corporate image. The average contract term is 5 years in Spain and
8 years in Argentina.

Typically,
the owner of the service station markets the product purchased from REPSOL YPF on an agency basis (i.e. earning a fee) subject to a price ceiling established by REPSOL YPF.
Accordingly, REPSOL YPF records the revenue arising from the sale of the product less the corresponding marketing fee earned by the lessee when the risks and rewards of the product are transferred to
the end-consumer.

Reflagging
costs are costs incurred in connection with the signing of these types of exclusive distribution agreements with service stations to market Repsol YPF's oil products for a
specified period of time under its brand name, and the corresponding refurbishing and improvement of such service stations. Upon signing of the contracts, the service stations agree to exclusively
sell REPSOL YPF's gasoline and other products. REPSOL YPF, in turn, directly incurs costs associated with the refurbishing and improvement of such service stations. The contracts are established for a
defined period of time, and may be renewed beyond the initial term. If a service station cancels a contract before its completion, they will have to pay Repsol YPF a cancellation penalty fee.

Under
Spanish GAAP, Repsol YPF capitalizes such costs and amortizes them on a straight-line basis over the respective contract periods, as it deems it to be the most
systematic and rational method of reflecting the time pattern over which these costs are consumed.

F-122

---



Under
US GAAP, reflagging costs have also been capitalized as intangible assets in accordance with SFAS 142, and amortized over their respective contract periods, since they
represent separately identifiable rights (contractual rights) that are expected to contribute directly to the future cash flows of REPSOL YPF (through future sales).



A discussion is currently ongoing within the oil industry regarding classification of oil and gas mineral rights. REPSOL YPF reports these assets as part of
Property, Plant and Equipment. The industry's current practice as to proper classification of acquisition of contractual mineral interests under SFAS 141,Business
Combinations, and SFAS 142,Goodwill and Intangible Assets, has been questioned. The FASB has issued FASB Staff Position
Nos. FAS 141-1 and FAS 142-1, addressing certain aspects of this discussion. In addition, EITF 04-2 addresses a related issue, whether mineral rights are tangible or intangible
assets, concluding that such assets are tangible assets. Furthermore, mineral rights are required to be separately disclosed in reporting periods beginning after March 31, 2004. However, this
statement applies only to mining entities, while oil- and gas-producing entities within the scope of SFAS 19 are excluded.

The
EITF has included the topic for oil and gas-producing entities on its agenda as Issue No. 03-S, stating that consideration of this issue will be consistent with the approach
taken with regards to mineral rights related to mining enterprises. Thus, further authoritative guidance on the issue is expected.

Should
new accounting guidance require hydrocarbon reserves obtained in acquisitions of oil and gas properties to be reported separately, either as tangible or intangible assets, the
maximum amount REPSOL YPF would reclassify in accordance with such guidance is approximately €4,966 million and €5,513 million, respectively, as of December 31,
2003, and 2002. The determination of these amounts is based on REPSOL YPF's current understanding of this issue. A reclassification would not be expected to change REPSOL YPF's results of operations
or cash flows. REPSOL YPF will continue to classify these assets as part of Property, Plant and Equipment until authoritative guidance is provided.



Except for the accounting treatment of the additional minimum liability discussed in item 16"Pension plan additional minimum liability," REPSOL YPF's
accounting policy for pension and other postretirement benefit plans has been compliant with SFAS 87,Employers' Accounting for Pensions, and SFAS
No. 106,Employers' Accounting for Postretirement Benefits Other Than Pensions,since 1992 (see Note 2.l).



Approximately 27 active employees working for Gas Natural (REPSOL YPF's consolidated subsidiary as of December 31, 2001 and equity investee as of
December 31, 2002) as of December 31, 2001 are covered under defined benefit pension plans. Depending on the group of employees, the defined benefits are based either on a
lump-sum payment at retirement age representing either 14 months or 60 months of salary, or an annual pension based on 100% of salary at retirement date.

Most
of the defined benefit obligation is unfunded. For accounting purposes, net periodic pension costs are determined using the projected unit credit method.

F-123

---





The
following is a reconciliation of beginning and ending balances of the benefit obligation:

Millions of EurosChange in benefit obligation2001Projected Benefit Obligation at beginning of year

18Service cost

Interest cost

1Actuarial loss

(15
)Benefits paid

Settlements

Projected Benefit Obligation at end of year

4


The
components of net periodic benefit cost for 2001 is as follows:

Millions of EurosComponents of net periodic benefit cost2001Service cost

0Interest cost

1Net periodic defined benefit pension cost

1Net periodic defined contribution pension cost and similar obligations

6Total cost of pension plans and similar obligations (Note 2.l)

7


Under
U.S. GAAP, the charge to the "Interest Expense" caption referred to in Note 2.l would be classified under the "Personnel Expenses" caption of the consolidated statements of
income. This classification difference has no impact on net income.

The
following is a reconciliation of the accrued pension costs and the projected benefit obligations:

Millions of Euros2001Projected benefit obligation

4Unrecognized net (gain)/loss

Accrued pension cost

4


The
following actuarial assumptions were used in 2001:

2001Discount rate

5
%Salary increase rate

2.5
%


The
above disclosures are not provided for 2002 or 2003 as Gas Natural is accounted for under the equity method of accounting in those years pursuant to U.S. GAAP.

F-124

---





YPF (a 99.04% owned subsidiary of REPSOL YPF) has a number of trustee non-contributory pension plans covering substantially all full-time
employees. YPF's funding policy is to contribute amounts to the plans sufficient to meet the minimum funding requirements under governmental regulations, plus such additional amounts as management may
determine to be appropriate. The benefits related to the plans are based on years of service and compensation earned during years of employment. YPF also has a non-contributory
supplemental retirement plan for executive officers and selected key employees.

The
following is a reconciliation of beginning and ending balances of the benefit obligation:

Millions of
EurosChange in benefit obligation2003

2002Projected Benefit Obligation at beginning of year

92

108Service cost

1

1Interest cost

5

7Actuarial loss

27

9Foreign currency exchange rate changes

(18
)
(19
)Settlements

(13
)
Benefits paid

(3
)
(14
)Projected Benefit Obligation at end of year

91

92


The
following is a reconciliation of beginning and ending balances of the fair value of plan assets:

Millions of EurosFair value of plan assets(*)2003

2002Fair value of plan assets at beginning of year

70

98Actual return on assets

9

(6
)Foreign currency exchange rate changes

(12
)
(13
)Asset adjustments

0

(1
)Employer contributions

2

6Benefits paid

(16
)
(14
)Fair value of plan assets at end of year

53

70


---

F-125

---



The
detail of the funded status of the plans and the amounts recognized and not recognized in the consolidated balance sheet are as follows:

Millions of
EurosFunded status of plans(*)2003

2002Accumulated benefit obligation at October 31,

(90
)
(90
)Projected benefit obligation at October 31,

(91
)
(92
)Fair value of plan assets at October 31,

53

70Unfunded status

(38
)
(22
)Unrecognized net loss

51

48Net amount recognized, at October 31,

13

26


---

Millions of EurosAmounts recognized in the statement of financial position2003

2002Prepaid pension cost

0

0Accrued benefit liability

(37
)
(22
)Accumulated other comprehensive income

50

48Net amount recognized

13

26


The
components of net periodic benefit cost for years ended December 31, 2003, 2002 and 2001 are as follows:

|                                                    |                                                                                  | Millions of Euros |   
|--------------------------------------------------- | -------------------------------------------------------------------------------- | ----------------- | --
|
|
|Service cost                                        |                                                                                  | 1                 |   
|Interest cost                                       |                                                                                  | 5                 |   
|Expected return on plan assets                      |                                                                                  | (5                | ) 
|Amortization of net loss                            |                                                                                  | 3                 |   
|                                                    |                                                                                  |                   |   
|                                                    | Net periodic defined benefit pension cost                                        |                   | 4 
|                                                    | Recognized settlement loss                                                       |                   | 8 
|                                                    | Net periodic defined contribution pension cost and similar obligations (note 2l) |                   | 24
|                                                    |                                                                                  |                   |   
|Total cost of pension plans and similar obligations |                                                                                  | 36                |   
|                                                    |                                                                                  |                   |   

The
following actuarial assumptions were used in 2003, 2002 and 2001:

2003

2002

2001Discount rate

6.25%

7.00%

7.25%Expected return on plan assets

9.00%

9.00%

9.00%Salary increase rate

4.5%-5.5%

4.5%-5.50%

4.5%-5.5%


F-126

---



The
projected benefit obligation, accumulated benefit obligation, and fair value of plan assets for the pension plans with accumulated benefit obligations in excess of plan assets were
€91 million, €90 million, and €53 million, respectively, as of December 31, 2003, and €92 million,
€90 million and €70 million, respectively, at December 31, 2002.



YPF provides certain health care and life insurance benefits for eligible retired employees and certain insurance and other post-employment benefits
for eligible individuals whose employment is terminated by YPF prior to their normal retirement. YPF accrues the estimated cost of retiree benefit payments, other than pensions, during the employee's
active service periods. Employees become eligible for these benefits if they meet minimum age and service requirements. YPF accounts for benefits provided after employment but before retirement by
accruing the estimated cost of post-employment benefits when the minimum service period is met, payment of the benefit is probable and the amount of the benefit can be reasonably
estimated. The Company's policy is to fund other post-retirement and post-employment benefits as claims are incurred. Key information on this plan as of the date of the last
actuarial report is as follows:

|                                                                |                                            | Millions of Euros
|--------------------------------------------------------------- | ------------------------------------------ | -----------------
|
|
|Interest cost on accumulated post-retirement benefit obligation |                                            | 2                
|                                                                |                                            |                  
|                                                                | Net periodic post-retirement benefit costs |                  
|                                                                |                                            |                  

The
following is a reconciliation of beginning and ending balances of the benefit obligation:

Millions of EurosChange in benefit obligation2003

2002Accumulated post-retirement benefit obligation, beginning of period (*)

42

46Interest cost

3

3Participants contributions

1

1Actuarial loss

10

1Foreign currency exchange rate changes

(5
)
(8
)Benefits paid

(5
)
(5
)Accumulated post-retirement benefit obligation, beginning of period (*)

46

38


---

F-127

---



The
following is a reconciliation of beginning and ending balances of the fair value of plan assets:

Millions of EurosFair value of plan assets2003

2002Fair value of plan assets at beginning of year (*)

0

0Employer contributions

4

4Participant contributions

1

1Benefits paid

(5
)
(5
)Fair value of plan assets at end of year (*)

0

0


---

The
detail of the funded status of the plans and the amounts recognized and not recognized in the statement of financial position are as follows:

|                                                        |                             | Millions of Euros |    
|------------------------------------------------------- | --------------------------- | ----------------- | ---
|
|
|Reconciliation of funded status:                        |                             |                   |    
|                                                        | Funded status               |                   | (39
|                                                        | Unrecognized actuarial loss |                   | 14 
|                                                        |                             |                   |    
|Net liability recognized at October 31,                 |                             | (25               | )  
|Adjustments for employer contributions Nov.1 to Dec. 31 |                             | 1                 |    
|                                                        |                             |                   |    
|Net liability recognized at December 31                 |                             | (24               | )  
|                                                        |                             |                   |    

For
measurement purposes at December 31, 2003, the net per capita cost of covered health care benefits are assumed to have an initial annual rate of increase of 10% in 2004 that
will gradually decrease by 1% each year to 5% in 2009, and thereafter remain at 5%. For measurement purposes at December 2002, the net per capita cost of covered health care benefits are
assumed to have an initial
annual rate of increase of 9% in 2003 that will gradually decrease by 1% each year to 5% in 2007, and thereafter remain at 5%.

Assumed
health care cost trend rates have a significant effect on the amounts reported for the health plan. A one-percentage-point change in assumed health care cost trend
rates would have the following effects on the 2003 amounts reported:

|                                                        |  | (in thousands of euros)
|------------------------------------------------------- |  | -----------------------
|
|Effect on total of service and interest cost components |  | (0.175                 
|Effect on year-end post-retirement benefit obligation   |  | (2.460                 

F-128

---





The Company also provides for medical and death benefits to disabled employees and death benefits for certain former and retired executives. Total liabilities as
of December 31, 2003 amounted to $4.0 million for these benefits. The discount rate used to calculate these liabilities was 6.25%.

Fair value of financial instruments

SFAS No. 107,Disclosures about Fair Value of Financial Instruments, requires that REPSOL YPF disclose the
estimated fair values of its financial instruments. As of December 31, 2003 and 2002, the following methods and assumptions were used by the Group to estimate the fair value of each class of
financial instrument for which it is practicable to estimate such value:



The
carrying amounts reflected in the consolidated financial statements are reasonable estimates of the fair value because of the relatively short period between the origination of the
instruments and their expected realization.





F-129

---









Millions of Euros2003

Carrying
Amounts

Fair ValueCash and cash equivalentsCash and due from banks

247

247Temporary cash investments

5,031

5,031Accounts receivable

4,582

4,582Accounts payable

(5,779
)
(5,787
)Short-term debt

(4,369
)
(4,369
)Investments in affiliates and other noncurrent assetsEquity securites:For which it is practicable to estimate fair value

51

51For which it is not practicable to estimate fair value

20

N/ALoans and other financial instruments

498

498Deposits

40

40Other financial instruments

275

275State financing of investments in exploration

(3
)
N/ALong-term debt

6,454

6,725Future contracts on products (buy), short term

N/A

1


F-130

---



Future contracts on products (sell), short term

N/A

Swap contracts on products, short-term

N/A

2Crude oil price swaps. FOS II y FOS III

N/A

153Forward foreign exchange contracts. R. YPF, SA., RNF, RIF, BV

2.95

3Forward foreign exchange contracts. (CHILE Y BRASIL)

(1
)
(1
)Forward foreign exchange contracts. G Nat. Proportional integration 27.15%

N/A

(3
)Interest rate option collars. RIC

N/A

76Interest rate option collars. Profertil. Proportional integration 50%

N/A

(2
)Cross Currency Interest Rate Swaps. Repsol YPF, S.A. L/P

906

898Cross Currency Interest Rate Swaps. G. Nat. Proportional integration 27.15%

N/A

Interest rate swap. Repsol YPF, S.A.

N/A

(4
)Interest rate swap. Repsol International Capital

(79.90
)
(186
)Interest rate swap. Mega. Proportional integration 38%

N/A

(0
)Interest rate swap. Gas Natural Proportional integration 27.15%

N/A

1Guarantees provided to third parties (see note 25)

N/A




F-131

---



Millions of Euros2002

Carrying
Amounts

Fair ValueCash and cash equivalentsCash and due from banks

195

195Temporary cash investments

4,270

4,270Accounts receivable

4,470

4,470Accounts payable

(4,286
)
(4,286
)Short-term debt

(3,999
)
(3,999
)Investments in affiliates and other noncurrent assetsEquity securites:For which it is practicable to estimate fair value

63

63For which it is not practicable to estimate fair value

23

N/ALoans and other financial instruments

335

335Deposits

34

34Other financial instruments

251

251State financing of investments in exploration

(3
)
N/ALong-term debt

8,273

8,601Future contracts on products (buy), short term

N/A

2Future contracts on products (sell), short term

N/A

(2
)Swap contracts on products, short-term

N/A

3Swap contracts on products, long-term

N/A

128Forward foreign exchange contracts

N/A

(72
)Interest rate options

N/A

73Interest rate collars

N/A

(3
)Cross-currency Interest rate swaps

814

670Interest Rate Swaps

(87
)
(193
)


Comprehensive Income

SFAS No. 130,Comprehensive Income, defines comprehensive income as a measure of all changes in equity of
an enterprise during a period that result from transactions and other economic events of the
period other than transactions with owners. Under Spanish GAAP, comprehensive income components are recorded as separate items in shareholders' equity, since the comprehensive income caption does not
exist.

The
following is a Statement of Comprehensive Income for the years ended December 31, 2003, 2002 and 2001.

|                                         |                                                                | Millions of Euros |       
|---------------------------------------- | -------------------------------------------------------------- | ----------------- | ------
|
|
|Net Income according to U.S. GAAP        |                                                                | 1,921             |       
|Other Comprehensive Income (net of tax): |                                                                |                   |       
|                                         | Foreign currency translation adjustments under Spanish GAAP(*) |                   | (1,534
|                                         | Foreign currency translation from US GAAP adjustments:         |                   |       
|                                         |                                                                |                   |       

F-132

---



|                            |                                                                                                               | Translation differences related to disposals(*)                                                                                  |    |     |     | (7   | ) | (26 | )
|--------------------------- | ------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------- | -- | ---- | --- | ---- | - | --- | -
|                            |                                                                                                               | Reversal of devaluation effect in Argentina(*)                                                                                   |    |     |     | 28   |   | (21 | )
|                            |                                                                                                               | Functional currency for YPF(*)                                                                                                   |    | (82  | )   | 831  |   |    |  
|                            |                                                                                                               | Goodwill transitional impairment(*)                                                                                              |    | 168  |     | 122  |   |    |  
|                            |                                                                                                               | Other translation differences(*)                                                                                                 |    | (5   | )   | (12  | ) |    |  
|                            | Additional minimum pension liability, net of tax of €4 million and €19 million in 2003 and 2002, respectively |                                                                                                                                  | (7 | )    | (34 | )    |  |    
|                            | Derivative Instruments:                                                                                       |                                                                                                                                  |    |      |     |      |   |    
|                            |                                                                                                               | Cumulative effect of change in accounting principle, SFAS 133, net of tax of € 4 million in 2001                                 |    |     |     |     |   | (10 | )
|                            |                                                                                                               | Deferred loss on SFAS 133 hedges, net of tax of €(98) million, €65 million and € 46 million in 2003, 2002 and 2001, respectively |    | 212  |     | (80  | ) | (81 | )
|                            |                                                                                                               |                                                                                                                                  |    |      |     |      |  
|Comprehensive (Loss)/Income |                                                                                                               | 673                                                                                                                              |    | (587 | )   | (153 | )

---

The
table below shows changes in Accumulated Other Comprehensive Income:

|                                                                                                              |                                                                                                                                  | Millions of Euros |    
|------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------- | ----------------- | ---
|
|Beginning balance, January 1                                                                                  |                                                                                                                                  | (2,462            | )  
|Foreign currency translation adjustments under Spanish GAAP(*)                                                |                                                                                                                                  | (1,534            | )  
|Foreign currency translation from US GAAP adjustments:                                                        |                                                                                                                                  |                   |    
|                                                                                                              | Translation differences related to disposals(*)                                                                                  |                   |   
|                                                                                                              | Reversal of devaluation effect in Argentina(*)                                                                                   |                   |   
|                                                                                                              | Functional currency for YPF(*)                                                                                                   |                   | (82
|                                                                                                              | Goodwill transitional impairment(*)                                                                                              |                   | 168
|                                                                                                              | Other translation differences(*)                                                                                                 |                   | (5 
|Additional minimum pension liability, net of tax of €4 million and €19 million in 2003 and 2002, respectively |                                                                                                                                  | (7                | )  
|Derivative Instruments:                                                                                       |                                                                                                                                  |                   |    
|                                                                                                              | Cumulative effect of change in accounting principle, SFAS 133, net of tax of €4 million in 2001                                  |                   |   
|                                                                                                              | Deferred loss on SFAS 133 hedges, net of tax of €(98) million, €65 million and € 46 million in 2003, 2002 and 2001, respectively |                   | 212
|                                                                                                              |                                                                                                                                  |                   |    
|Ending balance, December 31                                                                                   |                                                                                                                                  | (3,710            | )  
|                                                                                                              |                                                                                                                                  |                   |    

---

F-133

---



Valuation and Qualifying Accounts

The movement in allowance for doubtful accounts is as follows:

Millions of Euros2003

2002

2001Beginning balance, January 1

267

513

634Charged against costs and expenses

18

52

247Adjustments due to acquisitons and disposals



(82
)
(120
)Write-off of doubtful accounts

(36
)
(34
)
(63
)Translation difference on balances

(3
)
(182
)
(185
)Ending balance, December 31

246

267

513


Consolidated statements of cash flows

Note 25 includes a statement of sources and applications of funds prepared according to Spanish GAAP. Under U.S. GAAP, SFAS No. 95, Statements of Cash
Flows, requires a statement of cash flows to be presented in accordance with U.S. GAAP format as part of a full set of financial
statements.

F-134

---



The
consolidated statements of cash flows of the REPSOL YPF Group for the years ended December 31, 2003, 2002, and 2001 prepared considering Spanish GAAP figures and in accordance
with U.S. GAAP format is as follows:

REPSOL YPF, S.A. AND COMPANIES COMPOSING THE REPSOL YPF GROUP  CONSOLIDATED STATEMENTS OF CASH FLOWS  FOR THE YEARS ENDED DECEMBER 31, 2003, 2002 AND 2001  (Amounts in Millions)

|                                                                                  |                                                      | Euros  |      
|--------------------------------------------------------------------------------- | ---------------------------------------------------- | ------ | -----
|
|Cash flows from operating activities(a):                                          |                                                      |        |      
|Net income                                                                        |                                                      | 2,020  |      
|Adjustments to reconcile net income to net cash provided by operating activities: |                                                      |        |      
|                                                                                  | Depreciation, depletion and amortization             |        | 2,419
|                                                                                  | Provisions, net                                      |        | 260  
|                                                                                  | Minority interests, net of tax                       |        | 210  
|                                                                                  | (Gain) loss on asset disposals                       |        | (56  
|                                                                                  | Deferred taxes and other                             |        | (376 
|Changes per balance sheet in operating assets and liabilities:                    |                                                      |        |      
|                                                                                  | Inventories                                          |        | 10   
|                                                                                  | Prepaid expenses and deferred collections            |        | 5    
|                                                                                  | Accounts receivable                                  |        | (288 
|                                                                                  | Current liabilities                                  |        | 1,054
|Other changes in working capital (b):                                             |                                                      |        |      
|                                                                                  | Consolidation of new companies                       |        | 8    
|                                                                                  | Translation differences and devaluation in Argentina |        | 4    
|                                                                                  | Other non-cash effects                               |        | 103  
|                                                                                  |                                                      |        |      
|                                                                                  |                                                      | 5,373  |      
|                                                                                  |                                                      |        |      
|Cash flows from investing activities:                                             |                                                      |        |      
|Capital expenditures                                                              |                                                      | (2,241 | )    
|Proceeds from disposals                                                           |                                                      | 228    |      
|Investments in affiliates and financial investments                               |                                                      | (1,516 | )    
|Deferred expenses and intangible investments                                      |                                                      | (104   | )    
|                                                                                  |                                                      |        |      
|                                                                                  |                                                      | (3,633 | )    
|                                                                                  |                                                      |        |      
|Cash flows from financing activities:                                             |                                                      |        |      
|Loan proceeds and other long-term debt                                            |                                                      | 2,045  |      
|Repayment of loans and other non-current liabilities                              |                                                      | (714   | )    
|Changes in current financial assets and liabilities(b)                            |                                                      | (2,388 | )    
|Subsidies received                                                                |                                                      | 47     |      
|Minority interest contributions                                                   |                                                      |       |      
|Provisions and other                                                              |                                                      | (44    | )    
|Dividends paid                                                                    |                                                      | (634   | )    
|                                                                                  |                                                      |        |      
|                                                                                  |                                                      | (1,688 | )    
|                                                                                  |                                                      |        |      
|Net change in cash and cash equivalents                                           |                                                      | 52     |      
|                                                                                  |                                                      |        |      
|Cash and cash equivalents at the beginning of the year(c)                         |                                                      | 195    |      
|                                                                                  |                                                      |        |      
|Cash and cash equivalents at the end of the year(c)                               |                                                      | 247    |      
|                                                                                  |                                                      |        |      

F-135

---





(a)   Interest
and income tax payments made during 2003, 2002 and 2001 were as follows:

Amounts in MillionsEuros2003

2002

2001Interest

905

1,535

1,629Income taxes

110

143

1,591


(b)   As
a result of the variations in the consolidated Group (see Note 1.f), and due to the translation differences recorded in the year, the following
non-cash items are excluded in the accompanying statement of cash flows for the years 2003, 2002 and 2001:

Millions of Euros2003

2002

2001Other changes in operating assets and liabilities:Consolidation of new companies

8

(402
)
247Translation differences

4

(367
)
(213
)Other non-cash changes in operating assets and liabilities

103

(286
)
(160
)115

(1,055
)
(126
)Non-cash changes in current financial assets and liabilities

(1,997
)
(833
)
(5,219
)(1,882
)
(1,888
)
(5,345
)


(c)   For
the purpose of the statement of cash-flows, Repsol YPF treats as cash and cash equivalents the balance of the "Cash on hand and at banks" caption, the
related items of which have an original maturity at acquisition of less than 90 days.



REPSOL YPF expenses research and development costs as incurred under both Spanish GAAP and U.S. GAAP. For the years ended December 31, 2003, 2002 and 2001,
research and development expenses amounted to €1 million, €6 million and €23 million, respectively.



As described in Note 18, in 2003, 2002, and 2001, under Spanish GAAP REPSOL YPF recorded as extraordinary results items that under U.S. GAAP would be
recorded as operating revenues (expenses), except for gains on disposals of shareholdings relating to equity method and cost method investments, which are reflected as non-operating under
U.S. GAAP, but which did not represent any material amounts for the years ended December 31, 2003, 2002 and 2001.

In
addition, gains on sales of property, plant and equipment that are included in "Other operating revenues" under Spanish GAAP would not be classified as part of "Total operating
revenues" under U.S. GAAP, although such gains would still be included in operating income.

F-136

---



Under
Spanish GAAP, as a result of the legislation in force in Spain on the marketing of oil and gas, REPSOL YPF includes in both expenses and revenues the excise taxes on the products
marketed by it. The amount of excise taxes included in revenues amounted to €5,626 million,€5,532 million, and €6,850 million in
2003, 2002 and 2001, respectively. Under U.S. GAAP, excise taxes would not be included within revenues.



Under Spanish GAAP, at the inception of a capital lease, REPSOL YPF records the leased fixed assets as intangible assets in the balance sheet at the present value
of minimum lease payment, and the corresponding liability is recorded at its nominal amount. The unamortized portion of interest charges is recorded as a deferred charge (see Note 8), and is
amortized using the effective interest method as
payments on the lease are made. Under U.S. GAAP, leased fixed assets are shown in the balance sheet as property, plant and equipment. In addition, the capitalized asset and obligation should be
recorded at the net present value of the minimum lease payments at the outset of the lease. Interest should be charged each period, but the total amount of interest to be paid should not be recorded
in the balance sheet. This difference results in a net effect on the asset and liability balances reported under Spanish and US GAAP, but no effect on net income.



These
classification differences have no impact on net income.



In 2002 the companies that were consolidated by the proportional consolidation method were the following: Refap S.A., Refinaria de Petróleos de
Manguinhos, Compañía Mega, Global Companies LLC, Pluspetrol Energy, S.A., Profértil S.A., Refinerías del Norte S.A., BPRY Caribbean Ventures
LLC, Dubai Marine Areas Ltd.(DUMA), Repsol Occidental Corporation, Empresas Lipigas S.A., Dynasol Elastómeros S.A., and Gas Natural SDG S.A.

In
2003 the companies that were consolidated by the proportional consolidation method were the following: Refap, S.A.; Refinería de Petróleos de Manguinhos;
Compañía Mega; Global Companies LLC, Pluspetrol Energy, S.A.; Profertil, S.A.; Refinerías del Norte, S.A.; BPRY Caribean Ventures LLC; Dubai Marine
Areas Ltd. (DUMA); Repsol Occidental Corporation; Empresas Lipigas, S.A.; Dynasol Elastómeros, S.A. and Gas Natural SDG, S.A.

F-137

---



Under
U.S. GAAP, these entities would be accounted for under the equity method. The consolidation of these companies by the proportional consolidation method has no effect on net income
or shareholders' equity. The effect of the equity method would be to reduce (increase) the following financial statement captions by the following amounts (millions of Euros):

December 31,2003

2002Total fixed and other noncurrent assets

1,139

1,087Total current assets

1,218

1,175Total assets

2,357

2,262Total noncurrent liabilities

1,381

1,248Total current liabilities

976

1,014Total liabilities

2,357

2,262


Year Ended December 31,2003

2002Operating revenues

3,611

3,436Operating expenses

3,107

2,978Net income

504

458Cash flow operating activities

679

347Cash flow investing activities

(646
)
358Cash flow from financing activities

7

(702
)Net change in cash and cash equivalents

40

3


F-138

---





For the year ended December 31, 2003 Gas Natural SDG S.A. is considered to be a significant subsidiary of REPSOL YPF. The summarized financial information
provided by this subsidiary to the Group, under Spanish GAAP, as of December 31, 2003 is as follows:

December, 312003

2002Total fixed and other noncurrent assets

7,515

6,074Total current assets

2,268

2,516Total assets

9,783

8,590Shareholders' equity

4,224

3,923Minority Interests

212

201Total noncurrent liabilities

3,269

2,562Total current liabilities

2,078

1,904Total liabilities and shareholders' equity

9,783

8,590


Year Ended December, 312003

2002Operating Revenue

5,702

5,343Operating Expense

4,903

4,420Income before income tax and minority interests

776

1,014Net income

555

809




Following is a list of companies consolidated under both Spanish and U.S. GAAP, over which the Group does not have a majority of the voting equity interests.
These entities have been consolidated for the reason noted in the table.

|Company Name                 |  | % of direct
ownership |  | Reason                                                                                                                                                                             
|---------------------------- |  | --------------------- |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Empresa Petrolera Andina, SA |  | 50.00                 |  | The Board is made up of 7 members, of which 5 seats are held by Repsol YPF, the voting powers of which are sufficient to permit control over the operating decisions of the entity.

F-139

---





Following is a list of companies for which the Group owns a majority controlling interest, but which have been accounted for under the equity method rather than
consolidated under Spanish GAAP as they are deemed to be immaterial to the Repsol YPF Group. These entities represent 0.36% of the total assets, 0.93% of the operating revenues, and 0.04% of the
operating income of the Group as of December 31, 2003. Under U.S. GAAP, all entities controlled by the Company should be fully consolidated. The effect of the non-consolidation of these
entities, as well as those mentioned in Note 1 b) has not resulted in a material reconciliation adjustment.

Company Name

% of direct
ownershipEuroboxes, SA

99.94Gerpesa

99.97Repsol Electrica de Distribucion SA

99.97Repsol Maroc

99.88National Gaz

99.86Mejorgas, SA

75.73Repsol France

100Repsol Gas Brasil, S.A.

100Gasoleos y Lubricantes, SA

96.65Gasolube noroeste, S.A.

96.65Gasolube Andalucía, S.L.

96.65Gasolube Castilla y León S.L.

96.65Hinia, S.A.

96.68Autoclub Repsol S.L.

57.99Asiru, S.A.

96.65Noroil, S.A.

67.66Repsol (UK) Ltd.

100Repsol Bronderslev A/S

100Estasur, S.A.

99.97AESA Construcciones y Servicios Bolivia

100


F-140

---



Following
is a list of companies in which the Group owns less than a 20% interest but which are accounted for under the equity method under both Spanish GAAP and US GAAP for the reasons
listed in the table:

|Company Name                             |  | % of direct
ownership |  | Reason                                                                                                                                                                                                                                                                                                                                                               
|---------------------------------------- |  | --------------------- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Transportadora Sul Brasileira do Gas, SA |  | 15                    |  | The Board is made up of 9 members, of which 2 seats are held by Repsol YPF. The combination of the percentage held and the representation on the Board give Repsol YPF significant influence over this entity.                                                                                                                                                       
|Gasoducto del Pacífico Argentina, S.A.   |  | 8.67                  |  | The shareholders agreement requires a "special majority of shareholders", that is the affirmative vote of each original shareholder, for certain protective decisions. In addition, YPF has one Director in the Board over a total of ten. There is no
controlling partner. The combination of these factors gives Repsol YPF significant influence over this entity.
|Gasoducto Oriental, S.A.                 |  | 16.5                  |  | Gasoducto Oriental is an affiliate of Astra Evangelista S.A., which is in turn controlled by YPF. YPF has 1 of 4 Directors in the Management Board of Gasoducto Oriental.                                                                                                                                                                                            
|A&C Pipeline Holding                     |  | 17.83                 |  | The Board is made up of 5 members, of which 1 seat is held by Repsol YPF. The combination of the percentage held and the representation on the Board gives Repsol YPF significant influence over this entity.                                                                                                                                                        



REPSOL YPF holds interests in four variable interest entities (VIEs). Three of such entities have been created in order to structure REPSOL YPF's future
deliveries of oil in Argentina pursuant to forward oil sale (FOS) contracts (see Note 23). The last VIE, Tecnicontrol y Gestión Integral, S.L. (Tecnicontrol), has been created to
structure the land purchase option described in Note 23. The purpose of the FOS transactions is to provide YPF with cash to fund operations in advance of the actual sale and delivery of oil.
The purpose of Tecnicontrol is to provide REPSOL YPF with the flexibility to acquire additional land near its current headquarters in Madrid without incurring the purchase price of such land at the
time the agreement was entered into.

All
four VIEs have been fully consolidated under U.S. GAAP as of December 31, 2003 and 2002. The difference between consolidating these entities and the accounting treatment
provided under Spanish GAAP, has no material effect on net income or shareholders' equity. The only effect would be

F-141

---



to
(reduce) / increase the following financial statement captions by the following amounts (in millions of Euros):

December 31,
2003

December 31,
2002Total fixed and other noncurrent assets

(9
)
190Total current assets

15

5Total assets

6

195Total noncurrent liabilities



148Total current liabilities

6

47Total liabilities

6

195


For the year
ended December 31,2003

2002Operating revenues

7

4Operating expenses

1

0Net income

1

1


Nonetheless,
because the debt related to the FOS VIEs has been classified within "customer advances" under Spanish GAAP, long-term debt under U.S. GAAP should be increased by
€239 million and €520 million as of December 31, 2003 and 2002, respectively.



SFAS No. 150Accounting for Certain Financial Instruments with Characteristics of Both Liabilities and
Equity

In
May 2003, the FASB issued SFAS No. 150,Accounting for Certain Financial Instruments with Characteristics of Both Liabilities and
Equity("SFAS 150"). This Statement establishes standards for how an issuer classifies and measures certain financial instruments with characteristics of both
liabilities and equity. It requires that an issuer classify a financial instrument that is within its scope as a liability (or an asset in some circumstances). Many of those instruments were
previously classified as equity. Specifically, this Statement requires an issuer to classify the following instruments as liabilities (or assets in some circumstances): (1) a financial
instrument issued in the form of shares that is mandatorily redeemable, (2) a financial instrument, other than an outstanding share, that, at inception, embodies an obligation to repurchase the
issuer's equity shares, or is indexed to such an obligation, and that requires or may require the issuer to settle the obligation by transferring assets, (3) a financial instrument that
embodies an unconditional obligation, or a financial instrument other than an outstanding share that embodies a conditional obligation, that the issuer must or may settle by issuing a variable number
of its equity shares, if, at inception, the monetary value of the obligation is based solely or predominantly on certain specified criteria. SFAS 150 was originally effective for financial
instruments entered into or modified after May 31, 2003, and otherwise was effective at the beginning of the first interim period beginning after June 15, 2003. However, FSP
FAS 150-3 states that "for all

F-142

---



other
financial instruments that are mandatorily redeemable, the classification, measurement, and disclosure provisions of Statement 150 are deferred indefinitely pending further Board action".
Therefore, REPSOL YPF will adopt this Statement in general as of January 1, 2004, as it does not present interim financial information under U.S. GAAP, and once required by the FASB for its
mandatorily redeemable financial instruments. The Statement is to be implemented by reporting the cumulative effect of a change in an accounting principle for financial instruments created before its
issuance date and still existing at the beginning of the interim period of adoption. Restatement is not permitted.

Under
Spanish GAAP, REPSOL YPF has recorded as minority interest in the balance sheet the preferred shares issued by its subsidiary Repsol International Capital (see Note 12). The
Company is
currently analyzing whether these preferred shares will need to be classified as a liability and the effect this could have on its financial position, results of operations, or cash flows. The amount
of the preferred shares classified as minority interest as of December 31, 2003 equals €3,575 million.

FIN
No. 46 RevisedConsolidation of Variable Interest Entitiesan interpretation of ARB No. 51

In
December 2003, the FASB issued a revision to Interpretation No. 46, "Consolidation of Variable Interest Entities, an Interpretation of ARB No. 51" ("FIN 46R" or
the "Interpretation"). FIN 46R clarifies the application of ARB No. 51, "Consolidated Financial Statements", to certain entities in which equity investors do not have the characteristics of a
controlling financial interest or do not have sufficient equity at risk for the entity to finance its activities without additional subordinated financial support. FIN 46R requires the consolidation
of these entities, known as variable interest entities ("VIEs"), by the primary beneficiary of the entity. The primary beneficiary is the entity, if any, that will absorb a majority of the entity's
expected losses, receive a majority of the entity's expected residual returns, or both.

Among
other changes, the revisions of FIN 46R (a) clarified some requirements of the original FIN 46, which had been issued in January 2003, (b) eased some
implementation problems, and (c) added new scope exceptions. FIN 46R deferred the effective date of the Interpretation for public companies, to the end of the first reporting period ending
after March 15, 2004, except that all public companies must at a minimum apply the provisions of the Interpretation to entities that were previously considered "special-purpose entities" under
the FASB literature prior to the issuance of FIN 46R by the end of the first reporting period ending after December 15, 2003.

REPSOL
YPF holds interest in four variable interest entities (VIE) that have been consolidated under U.S. GAAP, prior to the issuance of FIN 46R or FIN 46, in conformity with prior U.S.
accounting literature (EITF 96-21 and EITF 90-15). (See also section called "Consolidation of Variable Interest Entities" above). Furthermore, REPSOL YPF is currently assessing
whether any of the service stations with which it currently holds contractual relationships fall within the scope of FIN 46R, in order to determine whether the adoption of FIN 46R will have any
effect on its financial position, results of operations, or cash flows.

SFAS
No. 132 (Revised 2003)Employers' Disclosures about Pensions and Other Postretirement Benefits

In
December 2003, the FASB issued SFAS No. 132, Revised 2003, (SFAS 132R), which requires an entity to make additional disclosures about pensions and other
postretirement benefits. These

F-143

---



disclosures
include information describing the types of plan assets, investment strategy, measurement date(s), plan obligations, cash flows and components of net periodic benefit cost.
SFAS 132R would be effective for any domestic (Spanish) plans beginning with fiscal years ending after December 15, 2003 and any foreign (non-Spanish) plans beginning with
fiscal years ending after June 15, 2004. The Company does not have any Spanish plans that could be impacted by this new pronouncement in the year ending December 31, 2003. REPSOL YPF
will include the disclosures required by SFAS 132R for the YPF Maxus pension plans described in the section "Pensions and Other Post-retirement Benefit Plans" above in the year
2004.

SAB
No. 104Revenue Recognition

In
December 2003, the SEC issued Staff Accounting Bulletin (SAB) No. 104,Revenue Recognition. SAB 104 updates portions of
the interpretive guidance included in Topic 13 of the codification of Staff Accounting Bulletins in order to make this interpretive guidance consistent with current authoritative accounting and
auditing guidance and SEC rules and regulations. The Company believes it is currently following the guidance of SAB 104.

(28) REPSOL INTERNATIONAL FINANCE, B.V. SUMMARIZED FINANCIAL INFORMATION

Repsol
International Finance B.V. has issued guaranteed debt securities which are registered in the United States. Repsol International Finance B.V. is wholly owned by Repsol YPF and the
securities referred to above are fully and unconditionally guaranteed by Repsol YPF. Set out below is condensed consolidating financial information in respect of Repsol International Finance B.V.

F-144

---



Balance sheets as of December 31, 2003 and 2002

December 31, 2003

|                                                   |                                          | Millions of Euros
|-------------------------------------------------- | ---------------------------------------- | -----------------
|
|FIXED AND OTHER                                    |                                          |                  
|NONCURRENT ASSETS                                  |                                          |                  
|Start-up expenses                                  |                                          | 23               
|Intangible assets                                  |                                          | 48               
|Property, plant and equipment                      |                                          | 537              
|Holdings in companies carried by the equity method |                                          | 16,278           
|Loans to group companies                           |                                          |                 
|Other financial investments                        |                                          | 1,742            
|Goodwill                                           |                                          |                 
|Deferred expenses                                  |                                          | 12               
|                                                   |                                          |                  
|                                                   | Total fixed and other non current assets |                  
|                                                   |                                          |                  
|CURRENT ASSETS                                     |                                          |                  
|Inventories                                        |                                          | 6                
|Accounts receivable                                |                                          | 546              
|Short term loans to group companies                |                                          | 1,657            
|Other financial accounts                           |                                          | 1,503            
|                                                   |                                          |                  
|                                                   | Total Current Assets                     |                  
|                                                   |                                          |                  
|TOTAL ASSETS                                       |                                          | 22,352           
|                                                   |                                          |                  

F-145

---



|                                           |                              | Millions of Euros |       
|------------------------------------------ | ---------------------------- | ----------------- | ------
|
|SHAREHOLDERS' EQUITY                       |                              |                   |       
|Capital stock                              |                              | 1,221             |       
|Paid-in surplus                            |                              | 6,428             |       
|Reserves in parent company                 |                              | 3,917             |       
|Reserves in consolidated companies         |                              | 4,940             |       
|Translation differences                    |                              | (4,650            | )     
|Net income for the year                    |                              | 2,020             |       
|Interim dividend paid during the year      |                              | (244              | )     
|                                           |                              |                   |       
|                                           | Total Shareholders' equity   |                   | 13,632
|                                           |                              |                   |       
|Provisions                                 |                              | 65                |       
|Minority interests                         |                              |                  |       
|Non interest bearing liabilities           |                              | 327               |       
|Long-term loans from group companies       |                              | 7,003             |       
|Medium-term notes                          |                              |                  |       
|Other long-term loans                      |                              | 189               |       
|SHORT-TERM LIABILITIES                     |                              |                   |       
|Commercial paper                           |                              |                  |       
|Short-term loans from group companies      |                              | 615               |       
|Other short-term loans                     |                              | 39                |       
|Other current liabilities                  |                              | 482               |       
|                                           |                              |                   |       
|                                           | Total Short-term Liabilities |                   | 1,136 
|                                           |                              |                   |       
|TOTAL SHAREHOLDERS' EQUITY
AND LIABILITIES |                              | 22,352            |       
|                                           |                              |                   |       

F-146

---



December 31, 2002

|                                                   |                                          | Millions of Euros
|-------------------------------------------------- | ---------------------------------------- | -----------------
|
|FIXED AND OTHER                                    |                                          |                  
|NONCURRENT ASSETS                                  |                                          |                  
|Start-up expenses                                  |                                          | 61               
|Intangible assets                                  |                                          | 19               
|Property, plant and equipment                      |                                          | 268              
|Holdings in companies carried by the equity method |                                          | 19,140           
|Loans to group companies                           |                                          |                 
|Other financial investments                        |                                          | 89               
|Goodwill                                           |                                          |                 
|Deferred expenses                                  |                                          | 42               
|                                                   |                                          |                  
|                                                   | Total fixed and other non current assets |                  
|                                                   |                                          |                  
|CURRENT ASSETS                                     |                                          |                  
|Inventories                                        |                                          | 1                
|Accounts receivable                                |                                          | 467              
|Short term loans to group companies                |                                          | 1,490            
|Other financial accounts                           |                                          | 1,019            
|                                                   |                                          |                  
|                                                   | Total Current Assets                     |                  
|                                                   |                                          |                  
|TOTAL ASSETS                                       |                                          | 22,596           
|                                                   |                                          |                  

F-147

---



|                                           |                              | Millions of Euros |       
|------------------------------------------ | ---------------------------- | ----------------- | ------
|
|SHAREHOLDERS' EQUITY                       |                              |                   |       
|Capital stock                              |                              | 1,221             |       
|Paid-in surplus                            |                              | 6,428             |       
|Reserves in parent company                 |                              | 3,004             |       
|Reserves in consolidated companies         |                              | 4,290             |       
|Translation differences                    |                              | (3,126            | )     
|Net income for the year                    |                              | 1,952             |       
|Interim dividend paid during the year      |                              | (183              | )     
|                                           |                              |                   |       
|                                           | Total Shareholders' equity   |                   | 13,586
|                                           |                              |                   |       
|Provisions                                 |                              | 41                |       
|Minority interests                         |                              |                  |       
|Non interest bearing liabilities           |                              | (690              | )     
|Long-term loans from group companies       |                              | 7,883             |       
|Medium-term notes                          |                              |                  |       
|Other long-term loans                      |                              | 726               |       
|SHORT-TERM LIABILITIES                     |                              |                   |       
|Commercial paper                           |                              |                  |       
|Short-term loans from group companies      |                              | 611               |       
|Other short-term loans                     |                              | (53               | )     
|Other current liabilities                  |                              | 492               |       
|                                           |                              |                   |       
|                                           | Total Short-term Liabilities |                   | 1,050 
|                                           |                              |                   |       
|TOTAL SHAREHOLDERS' EQUITY AND LIABILITIES |                              | 22,596            |       
|                                           |                              |                   |       

F-148

---





Consolidated statements of income for the years ended December 31, 2003, 2002 and 2001:

|                                                              |                                 | Millions of Euros |     
|------------------------------------------------------------- | ------------------------------- | ----------------- | ----
|
|OPERATING REVENUES                                            |                                 |                   |     
|Sales                                                         |                                 |                  |     
|Other                                                         |                                 | 784               |     
|                                                              |                                 |                   |     
|                                                              | Total Operating Revenues        |                   | 784 
|OPERATING EXPENSES                                            |                                 |                   |     
|Materials consumed                                            |                                 | (202              | )   
|Personnel expenses                                            |                                 | (117              | )   
|Taxes other than income taxes                                 |                                 | (1                | )   
|Outside work, supplies and services                           |                                 | (322              | )   
|Transport and freight                                         |                                 | (18               | )   
|Depreciation, depletion and amortization                      |                                 | (77               | )   
|                                                              |                                 |                   |     
|                                                              | Total Operating Expenses        |                   | (737
|OPERATING INCOME                                              |                                 | 47                |     
|INTEREST INCOME (EXPENSE)                                     |                                 |                   |     
|Dividends                                                     |                                 |                  |     
|Interest income                                               |                                 | 29                |     
|Interest expense                                              |                                 | (406              | )   
|Other financial income/(expense)                              |                                 | 2                 |     
|                                                              |                                 |                   |     
|                                                              | Total Interest Income (Expense) |                   | (375
|EXTRAORDINARY EXPENSE                                         |                                 | 40                |     
|GOODWILL AMORTIZATION                                         |                                 |                  |     
|SHARE IN THE INCOME OF COMPANIES CARRIED BY THE EQUITY METHOD |                                 | 1,527             |     
|                                                              |                                 |                   |     
|INCOME BEFORE INCOME TAX AND MINORITY INTERESTS               |                                 | 1,239             |     
|INCOME TAX                                                    |                                 | 781               |     
|INCOME ATTRIBUTED TO MINORITY INTERESTS                       |                                 |                  |     
|                                                              |                                 |                   |     
|NET INCOME                                                    |                                 | 2,020             |     
|                                                              |                                 |                   |     

F-149

---



|                                                              |                          | Millions of Euros |                                
|------------------------------------------------------------- | ------------------------ | ----------------- | -------------------------------
|
|OPERATING REVENUES                                            |                          |                   |                                
|Sales                                                         |                          |                  |                                
|Other                                                         |                          | 380               |                                
|                                                              |                          |                   |                                
|                                                              | Total Operating Revenues |                   | 380                            
|OPERATING EXPENSES                                            |                          |                   |                                
|Materials consumed                                            |                          | (6                | )                              
|Personnel expenses                                            |                          | (86               | )                              
|Taxes other than income taxes                                 |                          |                  |                                
|Outside work, supplies and services                           |                          | (221              | )                              
|Transport and freight                                         |                          | (7                | )                              
|Depreciation, depletion and amortization                      |                          | (64               | )                              
|                                                              |                          |                   |                                
|                                                              |                          |                   | Total Operating Expenses       
|OPERATING INCOME                                              |                          | (4                | )                              
|INTEREST INCOME (EXPENSE)                                     |                          |                   |                                
|Dividends                                                     |                          |                  |                                
|Interest income                                               |                          | 361               |                                
|Interest expense                                              |                          | (848              | )                              
|Other financial income/(expense)                              |                          | 56                |                                
|                                                              |                          |                   |                                
|                                                              |                          |                   | Total Interest Income (Expense)
|EXTRAORDINARY EXPENSE                                         |                          | 1,728             |                                
|GOODWILL AMORTIZATION                                         |                          |                  |                                
|SHARE IN THE INCOME OF COMPANIES CARRIED BY THE EQUITY METHOD |                          | (164              | )                              
|                                                              |                          |                   |                                
|INCOME BEFORE INCOME TAX AND MINORITY INTERESTS               |                          | 1,129             |                                
|INCOME TAX                                                    |                          | 823               |                                
|INCOME ATTRIBUTED TO MINORITY INTERESTS                       |                          |                  |                                
|                                                              |                          |                   |                                
|NET INCOME                                                    |                          | 1,952             |                                
|                                                              |                          |                   |                                

F-150

---



|                                                              |                                 | Millions of Euros |     
|------------------------------------------------------------- | ------------------------------- | ----------------- | ----
|
|OPERATING REVENUES                                            |                                 |                   |     
|Sales                                                         |                                 |                  |     
|Other                                                         |                                 | 295               |     
|                                                              |                                 |                   |     
|                                                              | Total Operating Revenues        |                   | 295 
|                                                              |                                 |                   |     
|OPERATING EXPENSES                                            |                                 |                   |     
|Materials consumed                                            |                                 |                  |     
|Personnel expenses                                            |                                 | (81               | )   
|Taxes other than income taxes                                 |                                 |                  |     
|Outside work, supplies and services                           |                                 | (187              | )   
|Transport and freight                                         |                                 |                  |     
|Depreciation, depletion and amortization                      |                                 | (54               | )   
|                                                              |                                 |                   |     
|                                                              | Total Operating Expenses        |                   | (322
|OPERATING INCOME                                              |                                 | (27               | )   
|INTEREST INCOME (EXPENSE)                                     |                                 |                   |     
|Dividends                                                     |                                 |                  |     
|Interest income                                               |                                 | 42                |     
|Interest expense                                              |                                 | (587              | )   
|Other financial income/(expense)                              |                                 | (80               | )   
|                                                              |                                 |                   |     
|                                                              | Total Interest Income (Expense) |                   | (625
|EXTRAORDINARY EXPENSE                                         |                                 | (9                | )   
|GOODWILL AMORTIZATION                                         |                                 |                  |     
|SHARE IN THE INCOME OF COMPANIES CARRIED BY THE EQUITY METHOD |                                 | 1,409             |     
|                                                              |                                 |                   |     
|INCOME BEFORE INCOME TAX AND MINORITY INTERESTS               |                                 | 748               |     
|INCOME TAX                                                    |                                 | 277               |     
|INCOME ATTRIBUTED TO MINORITY INTERESTS                       |                                 |                  |     
|                                                              |                                 |                   |     
|NET INCOME                                                    |                                 | 1,025             |     
|                                                              |                                 |                   |     

F-151

---



Consolidated statements of cash flows for the years ended December 31, 2003, 2002 and 2001

|                                                                              |                                          | Millions of Euros |     
|----------------------------------------------------------------------------- | ---------------------------------------- | ----------------- | ----
|
|Cash flows from operating activities                                          |                                          |                   |     
|Net income                                                                    |                                          | 2,020             |     
|Adjustments to reconcile net income to cash provided by operating activities: |                                          |                   |     
|                                                                              | Depreciation, depletion and amortization |                   | 77  
|                                                                              | Provisions, net                          |                   | 22  
|                                                                              | Minority interests, net of tax           |                   |    
|                                                                              | Gain on assets disposals                 |                   | (36 
|                                                                              | Deferred taxes and other                 |                   | (253
|                                                                              |                                          |                   |     
|                                                                              |                                          | 1,830             |     
|Changes in operating working capital                                          |                                          | 82                |     
|                                                                              |                                          |                   |     
|                                                                              |                                          | 1,912             |     
|                                                                              |                                          |                   |     
|Cash flows from investing activities                                          |                                          |                   |     
|Investments                                                                   |                                          | (398              | )   
|Proceeds from disposals                                                       |                                          | 50                |     
|                                                                              |                                          |                   |     
|                                                                              |                                          | (348              | )   
|                                                                              |                                          |                   |     
|Cash flows from financing activities                                          |                                          |                   |     
|Loans proceeds and other long-term debt                                       |                                          | 2,157             |     
|Capital increases                                                             |                                          |                  |     
|Repayment of loans and other non-current liabilities                          |                                          | (2,807            | )   
|Changes in current financial assets and liabilities                           |                                          | (555              | )   
|Subsidies, provisions and other                                               |                                          | 81                |     
|Dividends paid                                                                |                                          | (440              | )   
|                                                                              |                                          |                   |     
|                                                                              |                                          | (1,564            | )   
|                                                                              |                                          |                   |     
|Net change in cash and cash equivalents                                       |                                          |                  |     
|                                                                              |                                          |                   |     
|Cash and cash equivalents at the beginning of the year                        |                                          |                  |     
|                                                                              |                                          |                   |     
|Cash and cash equivalents at the end of the year                              |                                          |                  |     
|                                                                              |                                          |                   |     

F-152

---





|                                                                              |                                          | Millions of Euros |       
|----------------------------------------------------------------------------- | ---------------------------------------- | ----------------- | ------
|
|Cash flows from operating activities                                          |                                          |                   |       
|Net income                                                                    |                                          | 1,952             |       
|Adjustments to reconcile net income to cash provided by operating activities: |                                          |                   |       
|                                                                              | Depreciation, depletion and amortization |                   | 64    
|                                                                              | Provisions, net                          |                   | (159  
|                                                                              | Minority interests, net of tax           |                   |      
|                                                                              | Gain on assets disposals                 |                   | (1,413
|                                                                              | Deferred taxes and other                 |                   | 913   
|                                                                              |                                          |                   |       
|                                                                              |                                          | 1,357             |       
|Changes in operating working capital                                          |                                          | (117              | )     
|                                                                              |                                          |                   |       
|                                                                              |                                          | 1,240             |       
|                                                                              |                                          |                   |       
|Cash flows from investing activities                                          |                                          |                   |       
|Investments                                                                   |                                          | (1,459            | )     
|Proceeds from disposals                                                       |                                          | 2,156             |       
|                                                                              |                                          |                   |       
|                                                                              |                                          | 697               |       
|                                                                              |                                          |                   |       
|Cash flows from financing activities                                          |                                          |                   |       
|Loans proceeds and other long-term debt                                       |                                          | 1,476             |       
|Capital increases                                                             |                                          |                  |       
|Repayment of loans and other non-current liabilities                          |                                          | (3,108            | )     
|Changes in current financial assets and liabilities                           |                                          | (1,119            | )     
|Subsidies, provisions and other                                               |                                          | 997               |       
|Dividends paid                                                                |                                          | (183              | )     
|                                                                              |                                          |                   |       
|                                                                              |                                          | (1,937            | )     
|                                                                              |                                          |                   |       
|Net change in cash and cash equivalents                                       |                                          |                  |       
|                                                                              |                                          |                   |       
|Cash and cash equivalents at the beginning of the year                        |                                          |                  |       
|                                                                              |                                          |                   |       
|Cash and cash equivalents at the end of the year                              |                                          |                  |       
|                                                                              |                                          |                   |       

F-153

---



|                                                                              |                                          | Millions of Euros |    
|----------------------------------------------------------------------------- | ---------------------------------------- | ----------------- | ---
|
|Cash flows from operating activities                                          |                                          |                   |    
|Net income                                                                    |                                          | 1,025             |    
|Adjustments to reconcile net income to cash provided by operating activities: |                                          |                   |    
|                                                                              | Depreciation, depletion and amortization |                   | 58 
|                                                                              | Provisions, net                          |                   | 281
|                                                                              | Minority interests, net of tax           |                   |   
|                                                                              | Gain on assets disposals                 |                   |   
|                                                                              | Deferred taxes and other                 |                   | 508
|                                                                              |                                          |                   |    
|                                                                              |                                          | 1,872             |    
|Changes in operating working capital                                          |                                          | 553               |    
|                                                                              |                                          |                   |    
|                                                                              |                                          | 2,425             |    
|                                                                              |                                          |                   |    
|Cash flows from investing activities                                          |                                          |                   |    
|Investments                                                                   |                                          | (1,578            | )  
|Proceeds from disposals                                                       |                                          |                  |    
|                                                                              |                                          |                   |    
|                                                                              |                                          | (1,578            | )  
|                                                                              |                                          |                   |    
|Cash flows from financing activities                                          |                                          |                   |    
|Loans proceeds and other long-term debt                                       |                                          | 8,561             |    
|Capital increases                                                             |                                          |                  |    
|Repayment of loans and other non-current liabilities                          |                                          | (7,230            | )  
|Changes in current financial assets and liabilities                           |                                          | (1,854            | )  
|Subsidies, provisions and other                                               |                                          | 311               |    
|Dividends paid                                                                |                                          | (635              | )  
|                                                                              |                                          |                   |    
|                                                                              |                                          | (847              | )  
|                                                                              |                                          |                   |    
|Net change in cash and cash equivalents                                       |                                          |                  |    
|                                                                              |                                          |                   |    
|Cash and cash equivalents at the beginning of the year                        |                                          |                  |    
|                                                                              |                                          |                   |    
|Cash and cash equivalents at the end of the year                              |                                          |                  |    
|                                                                              |                                          |                   |    

F-154

---





SUPPLEMENTARY INFORMATION ON OIL AND GAS EXPLORATION AND PRODUCTION ACTIVITIES (Unaudited information)

Capitalized costs

Capitalized
costs represent the historical costs capitalized to assets with proved and unproved oil and gas reserves, including auxiliary equipment and facilities, and the related
accumulated depreciation, depletion and amortization. These amounts include state-financed exploration costs (see Note 2.c.3).

|                                                   |                         | Millions of Euros |       
|-------------------------------------------------- | ----------------------- | ----------------- | ------
|
|As of December 31, 2003                            |                         |                   |       
|Costs capitalized to assets with proved reserves   |                         | 22,696            |       
|Costs capitalized to assets with unproved reserves |                         | 913               |       
|                                                   |                         |                   |       
|                                                   |                         | 23,609            |       
|Support equipment and facilities                   |                         | 791               |       
|                                                   |                         |                   |       
|                                                   | Total capitalized costs |                   | 24,400
|Accumulated depreciation depletion and provisions  |                         | (13,515           | )     
|                                                   |                         |                   |       
|                                                   | Net amounts             |                   | 10,885
|                                                   |                         |                   |       
|As of December 31, 2002                            |                         |                   |       
|Costs capitalized to assets with proved reserves   |                         | 25,213            |       
|Costs capitalized to assets with unproved reserves |                         | 679               |       
|                                                   |                         |                   |       
|                                                   |                         | 25,892            |       
|Support equipment and facilities                   |                         | 1,004             |       
|                                                   |                         |                   |       
|                                                   | Total capitalized costs |                   | 26,896
|Accumulated depreciation                           |                         | (14,815           | )     
|                                                   |                         |                   |       
|                                                   | Net amounts             |                   | 12,081
|                                                   |                         |                   |       
|As of December 31, 2001                            |                         |                   |       
|Costs capitalized to assets with proved reserves   |                         | 28,873            |       
|Costs capitalized to assets with unproved reserves |                         | 1,351             |       
|                                                   |                         |                   |       
|                                                   |                         | 30,224            |       
|Support equipment and facilities                   |                         | 676               |       
|                                                   |                         |                   |       
|                                                   | Total capitalized costs |                   | 30,900
|Accumulated depreciation                           |                         | (15,715           | )     
|                                                   |                         |                   |       
|                                                   | Net amounts             |                   | 15,185
|                                                   |                         |                   |       

F-155

---



Costs incurred

Costs
incurred represent amounts capitalized or expensed during the year relating to acquisitions of assets with oil and gas reserves and exploration and development activities,
including amounts financed by the State (see Note 2.c.3).

|     |                                               | Millions of Euros
|---- | --------------------------------------------- | -----------------
|
|2003 |                                               |                  
|     | Acquisitions of assets with proved reserves   |                  
|     | Acquisitions of assets with unproved reserves |                  
|     | Exploration costs                             |                  
|     | Development costs                             |                  
|     |                                               |                  
|     |                                               | 2,485            
|     |                                               |                  
|2002 |                                               |                  
|     | Acquisitions of assets with proved reserves   |                  
|     | Acquisitions of assets with unproved reserves |                  
|     | Exploration costs                             |                  
|     | Development costs                             |                  
|     |                                               |                  
|     |                                               | 1,155            
|     |                                               |                  
|2001 |                                               |                  
|     | Acquisitions of assets with proved reserves   |                  
|     | Acquisitions of assets with unproved reserves |                  
|     | Exploration costs                             |                  
|     | Development costs                             |                  
|     |                                               |                  
|     |                                               | 1,823            
|     |                                               |                  

Results of operations of oil and gas producing activities

The
following table shows the revenues and expenses associated directly with the Company's oil and gas producing activities. It does not include any allocation of the Company's financial
costs or

F-156

---



general
corporate overhead and, therefore, is not necessarily indicative of the contribution to consolidated net earnings of the Company's oil and gas operations.

|     |                                                | Millions of Euros                      |               
|---- | ---------------------------------------------- | -------------------------------------- | --------------
|
|2003 |                                                |                                        |               
|     | Revenues                                       |                                        |               
|     |                                                | Sales to unaffiliated parties          |               
|     |                                                | Sales to affiliated parties            |               
|     |                                                | Other revenues                         |               
|     |                                                |                                        |               
|     |                                                |                                        | Total revenues
|     |                                                | Production costs(1)                    |               
|     |                                                | Exploration expenses                   |               
|     |                                                | Other operating expenses               |               
|     |                                                | Depreciation and amortization          |               
|     |                                                |                                        |               
|     |                                                | Income (Loss) before taxes and charges |               
|     |                                                | Taxes and charges(2)                   |               
|     |                                                |                                        |               
|     | Results of oil and gas producing activities(3) |                                        | 1,219         
|     |                                                |                                        |               

---

F-157

---





| |                                                | Millions of Euros                      |               
| | ---------------------------------------------- | -------------------------------------- | --------------
|
| | Revenues                                       |                                        |               
| |                                                | Sales to unaffiliated parties          |               
| |                                                | Sales to affiliated parties            |               
| |                                                | Other revenues                         |               
| |                                                |                                        |               
| |                                                |                                        | Total revenues
| |                                                | Production costs(1)                    |               
| |                                                | Exploration expenses                   |               
| |                                                | Other operating expenses               |               
| |                                                | Depreciation and amortization          |               
| |                                                |                                        |               
| |                                                | Income (Loss) before taxes and charges |               
| |                                                | Taxes and charges                      |               
| |                                                |                                        |               
| | Results of oil and gas producing activities(2) |                                        | 1,174         
| |                                                |                                        |               

---

F-158

---





| |                                                | Millions of Euros                      |               
| | ---------------------------------------------- | -------------------------------------- | --------------
|
| | Revenues                                       |                                        |               
| |                                                | Sales to unaffiliated parties          |               
| |                                                | Sales to affiliated parties            |               
| |                                                | Other revenues                         |               
| |                                                |                                        |               
| |                                                |                                        | Total revenues
| |                                                | Production costs(1)                    |               
| |                                                | Exploration expenses                   |               
| |                                                | Other operating expenses               |               
| |                                                | Depreciation and amortization          |               
| |                                                |                                        |               
| |                                                | Income (Loss) before taxes and charges |               
| |                                                | Taxes and charges                      |               
| |                                                |                                        |               
| | Results of oil and gas producing activities(2) |                                        | 1,816         
| |                                                |                                        |               

---



The tables below reflect the estimated developed and undeveloped proved reserves of crude oil, condensed oil and L.P.G. and natural gas as of December 31,
2001, 2002 and 2003, and the variations therein.

48.3%
(85% of reserves under operation) of the total proved reserves of crude oil, condensed oil and L.P.G. and natural gas as of December 31, 2003, were estimated by the
independent engineers Gaffney, Cline & Associates and DeGolyer and MacNaughton. The reserves of the other assets in 2003 and 2002 and the total reserves existing as of December 31, 2001,
were estimated by the Group in accordance with the rules and regulations established for the oil and gas industry by the U.S. Securities and Exchange Commission and the accounting principles laid down
by the Financial Accounting Standards Board which govern stock market economic information practices in the U.S.A.. In accordance with these rules, proved oil and gas reserves are the estimated
quantities of crude oil, natural gas and liquids related to natural gas for which geological and engineering information demonstrates with reasonable certainty that known fields can be extracted in
future years under existing economic and operating conditions, such as prices and costs as of the date of the estimates. The price change considerations to be used may be used only for current
contractual agreements and not for increases based on possible future conditions.

F-159

---



Effective
January 1, 2001, REPSOL YPF changed the conversion factor for the volume of gas produced to barrels of oil equivalent which had historically been used in the information
published. Through that date the factor of 6,000 cubic feet of gas = 1 barrel of oil equivalent had been used; from January 1, 2001, the factor used is 5,615 cubic feet of gas=1 barrel
of oil equivalent. In the table summarizing reserves the figures for 1999 and 2000 are based on the new method.

REPSOL
YPF decided to apply this new conversion factor for purposes of internal unification of accounting and technical processes and because the EIA, a US Department of Energy body,
uses the conversion factor of 1 barrel of oil equivalent to 5,615 cubic feet of gas in the preparation of all its reports.

F-160

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Proved developed and undeveloped reserves of crude oil, condensed oil and L.P.G.:

|                                                                  |  | Thousands of Barrels |  
|----------------------------------------------------------------- |  | -------------------- | -
|
|Reserves at December 31, 2000                                     |  | 2,378,471            |  
|Revision of previous estimates                                    |  | (33,025              | )
|Increase due to improvements in recovery techniques               |  | 40,706               |  
|Extensions and discoveries                                        |  | 82,123               |  
|Purchase (Sale) of reserves                                       |  | 62,146               |  
|Production                                                        |  | (235,433             | )
|                                                                  |  |                      |  
|Reserves at December 31, 2001(1)                                  |  | 2,294,988            |  
|                                                                  |  |                      |  
|Revision of previous estimates                                    |  | 13,070               |  
|Increase due to improvements in recovery techniques               |  | 31,313               |  
|Extensions and discoveries                                        |  | 54,178               |  
|Purchase (Sale) of reserves                                       |  | (161,621             | )
|Production                                                        |  | (213,232             | )
|                                                                  |  |                      |  
|Reserves at December 31, 2002(2)                                  |  | 2,018,696            |  
|                                                                  |  |                      |  
|Revision of previous estimates                                    |  | (43,948              | )
|Increase due to improvements in recovery techniques               |  | 35,052               |  
|Extensions and discoveries                                        |  | 39,147               |  
|Purchase (Sale) of reserves                                       |  | 49,742               |  
|Production                                                        |  | (216,957             | )
|                                                                  |  |                      |  
|Reserves at December 31, 2003(3)                                  |  | 1,881,731            |  
|                                                                  |  |                      |  
|Proved developed reserves of crude oil, condensed oil and L.P.G.: |  |                      |  
|At December 31, 2000                                              |  | 1,808,911            |  
|At December 31, 2001                                              |  | 1,768,399            |  
|At December 31, 2002                                              |  | 1,526,201            |  
|At December 31, 2003                                              |  | 1,412,269            |  

---

F-161

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Proved developed and undeveloped reserves of natural gas:

|                                                    |  | Natural Gas in Millions of Cubic Feet |  
|--------------------------------------------------- |  | ------------------------------------- | -
|
|Reserves at December 31, 2000                       |  | 14,394,740                            |  
|Revision of previous estimates                      |  | 419,948                               |  
|Increase due to improvements in recovery techniques |  | 1,011                                 |  
|Extensions and discoveries                          |  | 766,106                               |  
|Purchase (Sale) of reserves                         |  | 3,768,282                             |  
|Production                                          |  | (757,524                              | )
|                                                    |  |                                       |  
|Reserves at December 31, 2001(1)                    |  | 18,592,563                            |  
|                                                    |  |                                       |  
|Revision of previous estimates                      |  | 400,702                               |  
|Increase due to improvements in recovery techniques |  | 95                                    |  
|Extensions and discoveries                          |  | 471,322                               |  
|Purchase (Sale) of reserves                         |  | (406,132                              | )
|Production                                          |  | (852,771                              | )
|                                                    |  |                                       |  
|Reserves at December 31, 2002(2)                    |  | 18,205,779                            |  
|                                                    |  |                                       |  
|Revision of previous estimates                      |  | (444,811                              | )
|Increase due to improvements in recovery techniques |  | 298                                   |  
|Extensions and discoveries                          |  | 854,379                               |  
|Purchase (Sale) of reserves                         |  | 2,428,750                             |  
|Production                                          |  | (1,102,736                            | )
|                                                    |  |                                       |  
|Reserves at December 31, 2003(3)                    |  | 19,941,659                            |  
|                                                    |  |                                       |  
|Proved developed reserves of natural gas:           |  |                                       |  
|At December 31, 2000                                |  | 9,688,850                             |  
|At December 31, 2001                                |  | 11,500,900                            |  
|At December 31, 2002                                |  | 11,506,823                            |  
|At December 31, 2003                                |  | 10,182,221                            |  

---

F-162

---





Proved developed and undeveloped reserves of crude oil, condensed oil and L.P.G. and natural gas:

|                                                                                  |  | Thousands of Barrels of Crude Oil |  
|--------------------------------------------------------------------------------- |  | --------------------------------- | -
|
|Reserves at December 31, 2000                                                     |  | 4,942,094                         |  
|Revision of previous estimates                                                    |  | 41,764                            |  
|Increase due to improvements in recovery techniques                               |  | 40,886                            |  
|Extensions and discoveries                                                        |  | 218,564                           |  
|Purchase (Sale) of reserves                                                       |  | 733,256                           |  
|Production                                                                        |  | (370,344                          | )
|                                                                                  |  |                                   |  
|Reserves at December 31, 2001(1)                                                  |  | 5,606,220                         |  
|                                                                                  |  |                                   |  
|Revision of previous estimates                                                    |  | 84,433                            |  
|Increase due to improvements in recovery techniques                               |  | 31,330                            |  
|Extensions and discoveries                                                        |  | 138,117                           |  
|Purchase (Sale) of reserves                                                       |  | (233,951                          | )
|Production                                                                        |  | (365,106                          | )
|                                                                                  |  |                                   |  
|Reserves at December 31, 2002(2)                                                  |  | 5,261,043                         |  
|                                                                                  |  |                                   |  
|Revision of previous estimates                                                    |  | (123,167                          | )
|Increase due to improvements in recovery techniques                               |  | 35,105                            |  
|Extensions and discoveries                                                        |  | 191,307                           |  
|Purchase (Sale) of reserves                                                       |  | 482,289                           |  
|Production                                                                        |  | (413,348                          | )
|                                                                                  |  |                                   |  
|Reserves at December 31, 2003(3)                                                  |  | 5,433,228                         |  
|                                                                                  |  |                                   |  
|Proved developed reserves of crude oil, condensed oil and L.P.G. and natural gas: |  |                                   |  
|At December 31, 2000                                                              |  | 3,534,441                         |  
|At December 31, 2001                                                              |  | 3,816,645                         |  
|At December 31, 2002                                                              |  | 3,575,502                         |  
|At December 31, 2003                                                              |  | 3,225,666                         |  

---

Current value of future net revenues

The
estimate of future net revenues was performed in accordance with the rules and regulations established for the oil and gas industry by the U.S. Securities and Exchange Commission and
the

F-163

---



accounting
principles laid down by the Financial Accounting Standards Board which govern stock market information practices in the U.S.A.. The method to be applied is the impartiality or fairness
method and is the result of applying current oil and gas prices (considering price changes only by contractual agreement) to estimated future production of proved reserves of oil and gas as of the
date of the last balance sheet filed, less the estimated future costs (based on current costs) to develop and produce proved reserves, assuming the continuation of current economic conditions.

Future
production costs were estimated on the basis of actual costs borne in 2002 and 2003. Future development costs were calculated on the basis of technical studies conducted by REPSOL
YPF and by the operators holding joint title with REPSOL YPF. The taxes projected for each of the future years were determined by applying the nominal tax rate applicable, reduced by the tax benefits
available to the Company in each of the years. The interest rate used to discount the future net revenues was 10%.

The
present value of the future net revenues calculated as described above is not intended to be interpreted, and should not be interpreted, as the fair value of the Group's oil and gas
reserves. An estimation of the fair value of these reserves should also include the future exploitation of reserves not yet classified as proved reserves, possible changes in future prices and costs
and a discount rate which represents the value of money over time at the calculation date and the uncertainties inherent in estimating the reserves.

F-164

---



The
following table shows the present value of the future net revenues relating to proved oil and gas reserves, calculated on the basis of the aforementioned assumptions.

|                     |                                                      | Millions of Euros |        
|-------------------- | ---------------------------------------------------- | ----------------- | -------
|
|At December 31, 2001 |                                                      |                   |        
|                     | Future cash flows                                    |                   | 63,876 
|                     | Future production and development costs              |                   | (25,942
|                     |                                                      |                   |        
|                     | Future net cash flows before income taxes            |                   | 37,934 
|                     | Future income tax expense                            |                   | (11,184
|                     |                                                      |                   |        
|                     | Future net cash flows after income taxes             |                   | 26,750 
|                     | Effect of discounting at 10%                         |                   | (12,991
|                     |                                                      |                   |        
|                     | Standardized measure                                 |                   | 13,759 
|                     |                                                      |                   |        
|At December 31, 2002 |                                                      |                   |        
|                     | Future cash flows                                    |                   | 65,827 
|                     | Future production and development costs              |                   | (20,000
|                     |                                                      |                   |        
|                     | Future net cash flows before income taxes            |                   | 45,827 
|                     | Future income tax expense                            |                   | (15,141
|                     |                                                      |                   |        
|                     | Future net cash flows after income taxes             |                   | 30,686 
|                     | Effect of discounting at 10%                         |                   | (14,370
|                     |                                                      |                   |        
|                     | Standardized measure                                 |                   | 16,316 
|                     |                                                      |                   |        
|At December 31, 2003 |                                                      |                   |        
|                     | Future cash flows                                    |                   | 57,133 
|                     | Future production, development and abandonment costs |                   | (17,019
|                     |                                                      |                   |        
|                     | Future net cash flows before income taxes            |                   | 40,114 
|                     | Future income tax expense                            |                   | (14,057
|                     |                                                      |                   |        
|                     | Future net cash flows after income taxes             |                   | 26,057 
|                     | Effect of discounting at 10%                         |                   | (11,873
|                     |                                                      |                   |        
|                     | Standardized measure(*)                              |                   | 14,184 
|                     |                                                      |                   |        

---

F-165

---



Changes in the standardized measure of discounted future net cash flows

The
detail of the changes in the standardized measure of discounted future net cash flows for 2003, 2002 and 2001 is as follows:

|                                                                |  | Millions of Euros |  
|--------------------------------------------------------------- |  | ----------------- | -
|
|Balance as of December 31, 2000                                 |  | 18,000            |  
|Oil and gas sales, net of production costs                      |  | (4,010            | )
|Net variation in selling prices                                 |  | (7,764            | )
|Development costs incurred during the year                      |  | 1,296             |  
|Purchases/(Sales) of reserves                                   |  | (245              | )
|Changes in reserve quantities                                   |  | 1,650             |  
|Changes in production, development and abandonment costs        |  | (1,024            | )
|Net change in taxes and charges                                 |  | 2,855             |  
|Accretion of discount                                           |  | 3,001             |  
|Net variation                                                   |  | (4,241            | )
|                                                                |  |                   |  
|Balance as of December 31, 2001                                 |  | 13,759            |  
|                                                                |  |                   |  
|Oil and gas sales, net of production costs                      |  | (3,365            | )
|Net variation in selling prices                                 |  | 8,166             |  
|Development costs incurred during the year                      |  | 1,025             |  
|Purchases/(Sales) of reserves                                   |  | (117              | )
|Changes in reserve quantities                                   |  | 844               |  
|Changes in future production, development and abandonment costs |  | (664              | )
|Net change in taxes and charges                                 |  | (3,109            | )
|Accretion of discount                                           |  | (223              | )
|Net variation                                                   |  | 2,557             |  
|                                                                |  |                   |  
|Balance as of December 31, 2002                                 |  | 16,316            |  
|                                                                |  |                   |  
|Oil and gas sales, net of production costs                      |  | (2,956            | )
|Net variation in selling prices                                 |  | (263              | )
|Development costs incurred during the year                      |  | 741               |  
|Purchases/(Sales) of reserves                                   |  | 1,051             |  
|Changes in reserve quantities                                   |  | 364               |  
|Changes in future production, development and abandonment costs |  | (578              | )
|Net change in taxes and charges                                 |  | 487               |  
|Accretion of discount                                           |  | (978              | )
|Net variation                                                   |  | (2,132            | )
|                                                                |  |                   |  
|Balance as of December 31, 2003(*)                              |  | 14,184            |  
|                                                                |  |                   |  

---

F-166

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EXHIBIT I

MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

|                                                |                                               |                                           |                   |                   |                                        |                                               |                                                  |                                                  |                                             |                                             |      | Total % of Ownership |       | Amounts in Millions of Euros
|----------------------------------------------- | --------------------------------------------- | ----------------------------------------- | ----------------- | ----------------- | -------------------------------------- | --------------------------------------------- | ------------------------------------------------ | ------------------------------------------------ | ------------------------------------------- | ------------------------------------------- | ---- | -------------------- | ----- | ----------------------------
|
|Repsol Petróleo, S.A.                           |                                               | Spain                                     |                   | Repsol YPF, S.A.  |                                        |                                               |                                                  | Refining                                         |                                             | G.I.                                        |      | 99.97                |       | 99.97                       
|                                                | Repsol YPF Lubricantes y Especialidades, S.A. |                                           | Spain             |                   | Repsol Petróleo, S.A.                  |                                               | Repsol Comercial de Productos Petrolíferos, S.A. |                                                  | Distribution and marketing of by- productos |                                             | G.I. |                      | 99.97 |                             
|                                                |                                               | Estasur, S.A.                             |                   | Spain             |                                        | Repsol YPF Lubricantes y Especialidades, S.A. |                                                  | Repsol Comercial de Productos Petrolíferos, S.A. |                                             | Distribution and marketing of lubricants    |      | E.M.                 |       | 99.97                       
|                                                |                                               | Euroboxes, S.A.                           |                   | Spain             |                                        | Repsol YPF Lubricantes y Especialidades, S.A. |                                                  | Repsol Comercial de Productos Petrolíferos, S.A. |                                             | Operation of workshops and other activities |      | E.M.                 |       | 99.94                       
|                                                |                                               | Gerpesa                                   |                   | Spain             |                                        | Repsol YPF Lubricantes y Especialidades, S.A. |                                                  |                                                  |                                             | Other business activities                   |      | E.M.                 |       | 99.97                       
|                                                | Repsol Eléctrica de Distribución, S.A.        |                                           | Spain             |                   | Repsol Petróleo, S.A.                  |                                               | Repsol YPF, S.A.                                 |                                                  | Electric power and distribution supply      |                                             | E.M. |                      | 99.97 |                             
|                                                | Asfaltos Españoles, S.A.                      |                                           | Spain             |                   | Repsol Petróleo, S.A.                  |                                               |                                                  |                                                  | Asphalts                                    |                                             | E.M. |                      | 49.99 |                             
|Repsol YPF Trading y Transportes, S.A. (RYTTSA) |                                               | Spain                                     |                   | Repsol YPF, S.A.  |                                        | Repsol Petróleo, S.A.                         |                                                  | Trading of oil products                          |                                             | G.I.                                        |      | 100                  |       | 100                         
|                                                | RYTTSA Singapur                               |                                           | Cayman Islands    |                   | Repsol YPF Trading y Transportes, S.A. |                                               |                                                  |                                                  | Trading of oil products                     |                                             | G.I. |                      | 100   |                             
|Repsol Overzee Finance, B.V.                    |                                               | Netherlands                               |                   | Repsol YPF, S.A.  |                                        |                                               |                                                  | Portfolio Company                                |                                             | G.I.                                        |      | 100                  |       | 100                         
|                                                | Atlantic 2/3 Holdings, Llc.                   |                                           | Trinidad & Tobago |                   | Repsol Overzee Finance, B.V.           |                                               |                                                  |                                                  | Portfolio Company                           |                                             | E.M. |                      | 25.00 |                             
|                                                |                                               | Atlantic 2/3 Company of Trinidad & Tobago |                   | Trinidad & Tobago |                                        | Atlantic 2/3 Holidngs, Llc.                   |                                                  |                                                  |                                             | Gas supply and logistics                    |      | G.I.                 | (6)   | 25.00                       

---



MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

|                    |                           |                             |           |                  |                     |                           |          |                     |                                    |                          |      | Total % of Ownership |       | Amounts in Millions of Euros
|------------------- | ------------------------- | --------------------------- | --------- | ---------------- | ------------------- | ------------------------- | -------- | ------------------- | ---------------------------------- | ------------------------ | ---- | -------------------- | ----- | ----------------------------
|
|Repsol Butano, S.A. |                           | Spain                       |           | Repsol YPF, S.A. |                     | Repsol Petróleo, S.A.     |          | L.P.G. distribution |                                    | G.I.                     |      | 100                  |       | 100                         
|                    | Repsol Maroc              |                             | Morocco   |                  | Repsol Butano, S.A. |                           |          |                     | Marketing of gas                   |                          | E.M. |                      | 99.88 |                             
|                    |                           | National Gaz                |           | Morocco          |                     | Repsol Maroc              |          |                     |                                    | Marketing of gas         |      | E.M.                 |       | 99.86                       
|                    | Repsol YPF Gas, S.A.      |                             | Argentina |                  | Repsol Butano, S.A. |                           |          |                     | Marketing of gas                   |                          | G.I. |                      | 85.00 |                             
|                    |                           | Comsergas                   |           | Argentina        |                     | Repsol YPF Gas, S.A.      |          |                     |                                    | Gas cylinder repair      |      | G.I.                 |       | 52.70                       
|                    |                           | Gas Austral, S.A.           |           | Argentina        |                     | Repsol YPF Gas, S.A.      |          |                     |                                    | Marketing of gas         |      | E.M.                 |       | 42.50                       
|                    |                           | Mejorgas, S.A.              |           | Argentina        |                     | Repsol YPF Gas, S.A.      |          | Poligas Luján, S.A. |                                    | Marketing of gas natural |      | E.M.                 |       | 75.73                       
|                    | Duragas, S.A.             |                             | Ecuador   |                  | Repsol Butano, S.A. |                           |          |                     | LPG distribution and marketing     |                          | G.I. |                      | 100   |                             
|                    |                           | Autogas, S.A.               |           | Ecuador          |                     | Duragas, S.A.             |          |                     |                                    | LPG marketing            |      | G.I.                 |       | 60.36                       
|                    | Semapesa                  |                             | Ecuador   |                  | Repsol Butano, S.A. |                           |          |                     | Personnel and maintanance services |                          | G.I. |                      | 100   |                             
|                    | Repsol Butano Chile, S.A. |                             | Chile     |                  | Repsol Butano, S.A. |                           | YPF S.A. |                     | Portfolio Company                  |                          | G.I. |                      | 100   |                             
|                    |                           | Repsol YPF Gas Chile, Ltda. |           | Chile            |                     | Repsol Butano Chile, S.A. |          | OPESSA              |                                    | Portfolio Company        |      | G.I.                 |       | 100                         

---



MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

|                                                 |                                                  |                                          |                        |                       |                                                  |                                 |                                                  |                                 |                                            |                  |               | Total % of Ownership |       | Amounts in Millions of Euros
|------------------------------------------------ | ------------------------------------------------ | ---------------------------------------- | ---------------------- | --------------------- | ------------------------------------------------ | ------------------------------- | ------------------------------------------------ | ------------------------------- | ------------------------------------------ | ---------------- | ------------- | -------------------- | ----- | ----------------------------
|
|                                                 |                                                  |                                          | Empresas Lipigas, S.A. |                       | Chile                                            |                                 | Repsol YPF Gas Chile, Ltda.                      |                                 |                                            |                  | LPG marketing |                      | P.I.  |                             
|                                                 | Repsol YPF Comercial del Perú, S.A.              |                                          | Peru                   |                       | Repsol Butano, S.A.                              |                                 |                                                  |                                 | LPG marketing                              |                  | G.I.          |                      | 99.61 |                             
|                                                 |                                                  | Limagás, S.A.                            |                        | Peru                  |                                                  | Repsol YPF Comercial Perú, S.A. |                                                  |                                 |                                            | LPG distribution |               | E.M.                 |       | 29.85                       
|                                                 |                                                  | Repsol YPF Comercial de la Amazonía, SAC |                        | Peru                  |                                                  | Repsol YPF Comercial Perú, S.A. |                                                  | Grupo Repsol YPF del Perú       |                                            | LPG distribution |               | G.I.                 |       | 100                         
|                                                 | Repsol YPF GLP de Bolivia, S.A.                  |                                          | Bolivia                |                       | Repsol Butano, S.A.                              |                                 | R. YPF E&P de Bolivia, S.A./R. YPF Bolivia, S.A. |                                 | LPG marketing                              |                  | G.I.          |                      | 100   |                             
|                                                 |                                                  | Repsol YPF Gas de Bolivia, S.A.          |                        | Bolivia               |                                                  | Repsol YPF GLP de Bolivia, S.A. |                                                  | Repsol YPF E&P de Bolivia, S.A. |                                            | LPG marketing    |               | G.I.                 |       | 51.00                       
|                                                 | Repsol France                                    |                                          | France                 |                       | Repsol Butano, S.A.                              |                                 | Repsol Química, S.A./Repsol YPF, S.A.            |                                 | LPG distribution and marketing             |                  | E.M.          |                      | 100   |                             
|                                                 | Repsol Gas Brasil, S.A.                          |                                          | Brazil                 |                       | Repsol Butano, S.A.                              |                                 | Repsol YPF Brasil, S.A.                          |                                 | LPG marketing                              |                  | E.M.          |                      | 100   |                             
|                                                 | Repsol Portugal Gas de Petróleo Liquefeito, S.A. |                                          | Portugal               |                       | Repsol Butano, S.A.                              |                                 | R. YPF Lubricantes y Especialidades              |                                 | LPG distribution and marketing             |                  | G.I.          |                      | 100   |                             
|Repsol Comercial de Productos Petrolíferos, S.A. |                                                  | Spain                                    |                        | Repsol Petróleo, S.A. |                                                  | Repsol YPF, S.A./PETRONOR       |                                                  | Marketing of oil products       |                                            | G.I.             |               | 96.65                |       | 100                         
|                                                 | Gasóleos y Lubricantes, GASOLUBE, S.A.           |                                          | Spain                  |                       | Repsol Comercial de Productos Petrolíferos, S.A. |                                 |                                                  |                                 | Distribution and marketing of oil products |                  | E.M.          |                      | 96.65 |                             
|                                                 | Gasolube Noroeste, S.A.                          |                                          | Spain                  |                       | Repsol Comercial de Productos Petrolíferos, S.A. |                                 |                                                  |                                 | Distribution and marketing of oil products |                  | E.M.          |                      | 96.65 |                             

---



MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

| |                                                |                                            |         |       |                                                  |                      |                                               |  |                                              |                           |      | Total % of Ownership |       | Amounts in Millions of Euros
| | ---------------------------------------------- | ------------------------------------------ | ------- | ----- | ------------------------------------------------ | -------------------- | --------------------------------------------- |  | -------------------------------------------- | ------------------------- | ---- | -------------------- | ----- | ----------------------------
|
| | Gasolube Andalucía, S.L.                       |                                            | Spain   |       | Repsol Comercial de Productos Petrolíferos, S.A. |                      |                                               |  | Distribution and marketing of oil products   |                           | E.M. |                      | 96.65 |                             
| | Gasolube Castilla y León, S.L.                 |                                            | Spain   |       | Repsol Comercial de Productos Petrolíferos, S.A. |                      |                                               |  | Distribution and marketing of oil products   |                           | E.M. |                      | 96.65 |                             
| | CAMPSARED                                      |                                            | Spain   |       | Repsol Comercial de Productos Petrolíferos, S.A. |                      | Repsol Petróleo, S.A.                         |  | Operation and management of service stations |                           | G.I. |                      | 96.65 |                             
| | Sociedad Catalana de Petrolis, S.A. (PETROCAT) |                                            | Spain   |       | Repsol Comercial de Productos Petrolíferos, S.A. |                      | Repsol Petróleo, S.A.                         |  | Distribution and marketing of oil products   |                           | E.M. |                      | 43.69 |                             
| | Air Miles España, S.A.                         |                                            | Spain   |       | Repsol Comercial de Productos Petrolíferos, S.A. |                      |                                               |  | Management of "Travel Club" membership card  |                           | E.M. |                      | 21.75 |                             
| | Carburants i Derivats, S.A. (CADESA)           |                                            | Andorra |       | Repsol Comercial de Productos Petrolíferos, S.A. |                      |                                               |  | Distribution of oil-by products              |                           | E.M. |                      | 32.14 |                             
| | Hinia, S.A.                                    |                                            | Spain   |       | Repsol Comercial de Productos Petrolíferos, S.A. |                      | Repsol YPF Lubricantes y Especialidades, S.A. |  | Distribution and marketing of oil products   |                           | E.M. |                      | 96.68 |                             
| | Autoclub Repsol S.L.                           |                                            | Spain   |       | Repsol Comercial de Productos Petrolíferos, S.A. |                      |                                               |  | Automotive services                          |                           | E.M. |                      | 57.99 |                             
| |                                                | Euro 24, S.L.                              |         | Spain |                                                  | Autoclub Repsol S.L. |                                               |  |                                              | Road assistance           |      | E.M.                 |       | 57.99                       
| |                                                | Autoclub Repsol Services S.L.              |         | Spain |                                                  | Autoclub Repsol S.L. |                                               |  |                                              | Retailing of oil products |      | E.M.                 |       | 57.99                       
| |                                                | Autoclub Repsol Correduría de Seguros S.L. |         | Spain |                                                  | Autoclub Repsol S.L. |                                               |  |                                              | Insurance troker          |      | E.M.                 |       | 57.99                       
| | Asiru, S.A.                                    |                                            | Spain   |       | Repsol Comercial de Productos Petrolíferos, S.A. |                      |                                               |  | Distribution and marketing of oil products   |                           | E.M. |                      | 96.65 |                             

---



MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

|                                              |                                             |       |       |                  |                                                  |                       |                  |                                        |                                                    |      |      | Total % of Ownership |       | Amounts in Millions of Euros
|--------------------------------------------- | ------------------------------------------- | ----- | ----- | ---------------- | ------------------------------------------------ | --------------------- | ---------------- | -------------------------------------- | -------------------------------------------------- | ---- | ---- | -------------------- | ----- | ----------------------------
|
|                                              | Noroil, S.A.                                |       | Spain |                  | Repsol Comercial de Productos Petrolíferos, S.A. |                       | PETRONOR         |                                        | Distribution and marketing of oil products         |      | E.M. |                      | 67.66 |                             
|                                              | Solred, S.A.                                |       | Spain |                  | Repsol Comercial de Productos Petrolíferos, S.A. |                       | Repsol YPF, S.A. |                                        | Management of means of payment at serv. stations   |      | G.I. |                      | 96.65 |                             
|                                              | Gestión de Puntos de Venta, Gespevesa, S.A. |       | Spain |                  | Repsol Comercial de Productos Petrolíferos, S.A. |                       |                  |                                        | Mark. of prod. at serv. st. and convenience stores |      | E.M. |                      | 48.33 |                             
|                                              | Terminales Canarios, S.L.                   |       | Spain |                  | Repsol Comercial de Productos Petrolíferos, S.A. |                       |                  |                                        | Distribution and marketing of oil products         |      | E.M. |                      | 48.33 |                             
|Compañía Logística de Hidrocarburos CLH, S.A. |                                             | Spain |       | Repsol YPF, S.A. |                                                  | PETRONOR              |                  | Transport and storage of oil products  |                                                    | E.M. |      | 24.25                |       | 25                          
|                                              | CLH Aviación, S.A.                          |       | Spain |                  | CLH                                              |                       |                  |                                        | Transport and storage of oil products              |      | G.I. | (6)                  | 24.25 |                             
|Petróleos del Norte, S.A. (PETRONOR)          |                                             | Spain |       | Repsol YPF, S.A. |                                                  |                       |                  | Refining                               |                                                    | G.I. |      | 85.98                |       | 85.98                       
|                                              | Asfalnor, S.A.                              |       | Spain |                  | PETRONOR                                         |                       |                  |                                        | Distrib. and marketing of asphalt products         |      | G.I. |                      | 85.98 |                             
|Repsol Exploración, S.A.                      |                                             | Spain |       | Repsol YPF, S.A. |                                                  | Repsol Petróleo, S.A. |                  | Oil and gas exploration and production |                                                    | G.I. |      | 100                  |       | 100                         
|                                              | Repsol Exploración Trinidad, S.A.           |       | Spain |                  | Repsol Exploración, S.A.                         |                       | Repsol YPF, S.A. |                                        | Oil and gas exploration and production             |      | G.I. |                      | 100   |                             
|                                              | Repsol YPF Cuba, S.A.                       |       | Spain |                  | Repsol Exploración, S.A.                         |                       | Repsol YPF, S.A. |                                        | Oil and gas exploration and production             |      | G.I. |                      | 100   |                             
|                                              | Repsol Exploración Colombia, S.A.           |       | Spain |                  | Repsol Exploración, S.A.                         |                       | Repsol YPF, S.A. |                                        | Oil and gas exploration and production             |      | G.I. |                      | 100   |                             

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

| |                                      |                                 |       |             |                          |                                 |                       |                                 |                                        |                                        |      | Total % of Ownership |     | Amounts in Millions of Euros
| | ------------------------------------ | ------------------------------- | ----- | ----------- | ------------------------ | ------------------------------- | --------------------- | ------------------------------- | -------------------------------------- | -------------------------------------- | ---- | -------------------- | --- | ----------------------------
|
| | Repsol Exploración Argelia, S.A.     |                                 | Spain |             | Repsol Exploración, S.A. |                                 | Repsol YPF, S.A.      |                                 | Oil and gas exploration and production |                                        | G.I. |                      | 100 |                             
| | Repsol Exploración Murzuq, S.A.      |                                 | Spain |             | Repsol Exploración, S.A. |                                 | Repsol YPF, S.A.      |                                 | Oil and gas exploration and production |                                        | G.I. |                      | 100 |                             
| |                                      | Repsol Oil Operations AG        |       | Switzerland |                          | Repsol Exploración Murzuq, S.A. |                       |                                 |                                        | Oil and gas exploration and production |      | E.M.                 |     | 40.00                       
| |                                      | Repsol Inco AG                  |       | Switzerland |                          | Repsol Exploración Murzuq, S.A. |                       |                                 |                                        | Oil and gas exploration and production |      | E.M.                 |     | 40.00                       
| | Repsol YPF Ecuador, S.A.             |                                 | Spain |             | Repsol Exploración, S.A. |                                 | Repsol Petróleo, S.A. |                                 | Oil and gas exploration and production |                                        | G.I. |                      | 100 |                             
| |                                      | Repsol YPF OCP de Ecuador, S.A. |       | Spain       |                          | Repsol YPF Ecuador, S.A.        |                       | Repsol Exploración Tobago, S.A. |                                        | Portfolio Company                      |      | G.I.                 |     | 100                         
| | Repsol Exploración Securé, S.A.      |                                 | Spain |             | Repsol Exploración, S.A. |                                 | Repsol YPF, S.A.      |                                 | Oil and gas exploration and production |                                        | G.I. |                      | 100 |                             
| | Repsol Exploración Perú, S.A.        |                                 | Spain |             | Repsol Exploración, S.A. |                                 | Repsol YPF, S.A.      |                                 | Oil and gas exploration and production |                                        | G.I. |                      | 100 |                             
| | Repsol YPF Oriente Medio, S.A.       |                                 | Spain |             | Repsol Exploración, S.A. |                                 | Repsol YPF, S.A.      |                                 | Oil and gas exploration and production |                                        | G.I. |                      | 100 |                             
| | Repsol Exploración Kazakhstán, S.A.  |                                 | Spain |             | Repsol Exploración, S.A. |                                 | Repsol YPF, S.A.      |                                 | Oil and gas exploration and production |                                        | G.I. |                      | 100 |                             
| | Repsol Exploración Tobago, S.A.      |                                 | Spain |             | Repsol Exploración, S.A. |                                 | Repsol YPF, S.A.      |                                 | Oil and gas exploration and production |                                        | G.I. |                      | 100 |                             
| | Repsol YPF Eléctrica de Brasil, S.A. |                                 | Spain |             | Repsol Exploración, S.A. |                                 | Repsol YPF, S.A.      |                                 | Oil and gas exploration and production |                                        | G.I. |                      | 100 |                             

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

|                    |                                           |                            |                   |                   |                           |                                    |                  |                   |                                        |                                        |      | Total % of Ownership |       | Amounts in Millions of Euros
|------------------- | ----------------------------------------- | -------------------------- | ----------------- | ----------------- | ------------------------- | ---------------------------------- | ---------------- | ----------------- | -------------------------------------- | -------------------------------------- | ---- | -------------------- | ----- | ----------------------------
|
|                    | Repsol Exploración Azerbaiyan, S.A.       |                            | Spain             |                   | Repsol Exploración, S.A.  |                                    | Repsol YPF, S.A. |                   | Oil and gas exploration and production |                                        | G.I. |                      | 100   |                             
|                    | Repsol Exploración Venezuela, B.V.        |                            | Netherlands       |                   | Repsol Exploración, S.A.  |                                    |                  |                   | Oil and gas exploration and production |                                        | G.I. |                      | 100   |                             
|                    |                                           | Repsol YPF Venezuela, S.A. |                   | Venezuela         |                           | Repsol Exploración Venezuela, B.V. |                  |                   |                                        | Oil and gas exploration and production |      | G.I.                 |       | 100                         
|                    | Repsol Exploración Guinea, S.A.           |                            | Spain             |                   | Repsol Exploración, S.A.  |                                    | Repsol YPF, S.A. |                   | Oil and gas exploration and production |                                        | G.I. |                      | 100   |                             
|                    | BPRY Caribbean Ventures LLC               |                            | Trinidad & Tobago |                   | Repsol Exploración, S.A.  |                                    |                  |                   | Portfolio Company                      |                                        | P.I. |                      | 30.00 |                             
|                    |                                           | BP Amoco Trinidad & Tobago |                   | Trinidad & Tobago |                           | BPRY Caribbean Ventures LLC        |                  |                   |                                        | Oil and gas exploration and production |      | P.I.                 |       | 30.00                       
|                    | Dubai Marine Areas, Ltd. (DUMA)           |                            | U.K.              |                   | Repsol Exploración, S.A.  |                                    |                  |                   | Oil and gas exploration and production |                                        | P.I. |                      | 50.00 |                             
|                    | Repsol Investigaciones Petrolíferas, S.A. |                            | Spain             |                   | Repsol Exploración, S.A.  |                                    |                  |                   | Oil and gas exploration and production |                                        | G.I. |                      | 100   |                             
|Repsol YPF Perú, BV |                                           | Netherlands                |                   | Repsol YPF, S.A.  |                           |                                    |                  | Portfolio Company |                                        | G.I.                                   |      | 100                  |       | 100                         
|                    | Grupo Repsol YPF del Perú, S.A.C.         |                            | Peru              |                   | Repsol YPF Perú, B.V.     |                                    |                  |                   | Portfolio Company                      |                                        | G.I. |                      | 100   |                             
|                    | Refinería La Pampilla, S.A.               |                            | Peru              |                   | Refinadores de Perú, S.A. |                                    |                  |                   | Refining                               |                                        | G.I. |                      | 50.29 |                             
|                    | Repsol Comercial, S.A.C.                  |                            | Peru              |                   | Repsol YPF Perú, B.V.     |                                    |                  |                   | Marketing of fuels                     |                                        | G.I. |                      | 100   |                             

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

|                                       |                                            |                          |                |                   |                                    |                              |                            |                             |                          |                   |                          | Total % of Ownership |      | Amounts in Millions of Euros
|-------------------------------------- | ------------------------------------------ | ------------------------ | -------------- | ----------------- | ---------------------------------- | ---------------------------- | -------------------------- | --------------------------- | ------------------------ | ----------------- | ------------------------ | -------------------- | ---- | ----------------------------
|
|Repsol YPF Comercial del Ecuador, S.A. |                                            | Ecuador                  |                | Repsol YPF, S.A.  |                                    |                              |                            | Marketing of oil and gas    |                          | G.I.              |                          | 100                  |      | 100                         
|                                       | Combustibles Industriales Oil Trader, S.A. |                          | Ecuador        |                   | Repsol YPF Comercial Ecuador, S.A. |                              |                            |                             | Marketing of oil and gas |                   | G.I.                     |                      | 100  |                             
|Repsol International Finance B.V.      |                                            | Netherlands              |                | Repsol YPF, S.A.  |                                    |                              |                            | Finance and holding company |                          | G.I.              |                          | 100                  |      | 100                         
|                                       | Repsol LNG Port of Spain, BV               |                          | Netherlands    |                   | Repsol International Finance, B.V. |                              |                            |                             | Portfolio Company        |                   | G.I.                     |                      | 100  |                             
|                                       |                                            | Atlantic 1 Holdings, LLC |                | Trinidad & Tobago |                                    | Repsol LNG Port of Spain, BV |                            |                             |                          | Portfolio Company |                          | E.M.                 |      | 20.00                       
|                                       |                                            |                          | Atlantic LNG   |                   | Trinidad & Tobago                  |                              | Atlantic 1 Holdings, LLC   |                             |                          |                   | Gas supply and logistics |                      | G.I. | (6)                         
|                                       | Repsol International Capital               |                          | Cayman Islands |                   | Repsol International Finance, B.V. |                              |                            |                             | Finance                  |                   | G.I.                     |                      | 100  |                             
|                                       | Repsol Investeringen, BV                   |                          | Netherlands    |                   | Repsol International Finance, B.V. |                              |                            |                             | Finance                  |                   | G.I.                     |                      | 100  |                             
|                                       | Repsol Netherlands Finance, BV             |                          | Netherlands    |                   | Repsol International Finance, B.V. |                              | Repsol Investeringen, B.V. |                             | Finance                  |                   | G.I.                     |                      | 100  |                             
|                                       | Repsol YPF Capital, S.L.                   |                          | Spain          |                   | Repsol International Finance, B.V. |                              | Repsol YPF, S.A.           |                             | Portfolio Company        |                   | G.I.                     |                      | 100  |                             
|                                       |                                            | CAVEANT                  |                | Argentina         |                                    | Repsol YPF Capital, S.L.     |                            | Repsol YPF, S.A.            |                          | Finance           |                          | G.I.                 |      | 100                         
|                                       | Gaviota RE                                 |                          | Luxembourg     |                   | Repsol International Finance, B.V. |                              | Repsol YPF, S.A.           |                             | Reinsurance              |                   | G.I.                     |                      | 100  |                             

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

|                     |                                   |                            |            |                  |                                    |                         |                                          |                |                                        |                          |      | Total % of Ownership |       | Amounts in Millions of Euros
|-------------------- | --------------------------------- | -------------------------- | ---------- | ---------------- | ---------------------------------- | ----------------------- | ---------------------------------------- | -------------- | -------------------------------------- | ------------------------ | ---- | -------------------- | ----- | ----------------------------
|
|                     | Cormorán RE                       |                            | Luxembourg |                  | Repsol International Finance, B.V. |                         | Repsol YPF, S.A.                         |                | Reinsurance                            |                          | G.I. |                      | 100   |                             
|                     | Repsol (UK) Ltd.                  |                            | U.K.       |                  | Repsol International Finance, B.V. |                         |                                          |                | Portfolio Company                      |                          | E.M. |                      | 100   |                             
|                     | Repsol Occidental Corporation     |                            | U.S.A.     |                  | Repsol International Finance, B.V. |                         |                                          |                | Oil and gas exploration and production |                          | P.I. |                      | 25.00 |                             
|Repsol Química, S.A. |                                   | Spain                      |            | Repsol YPF, S.A. |                                    | Repsol Petróleo, S.A.   |                                          | petrochemicals |                                        | G.I.                     |      | 100                  |       | 100                         
|                     | Polidux, S.A.                     |                            | Spain      |                  | Repsol Química, S.A.               |                         | Repsol YPF, S.A.                         |                | petrochemicals                         |                          | G.I. |                      | 100   |                             
|                     | Repsol Bronderslev A/S            |                            | Denmark    |                  | Repsol Química, S.A.               |                         |                                          |                | Chemicals                              |                          | E.M. |                      | 100   |                             
|                     |                                   | Repsol Polívar, SPA        |            | Italy            |                                    | Repsol Bronderslev, A/S |                                          |                |                                        | petrochemicals           |      | E.M.                 |       | 100                         
|                     | General Química, S.A.             |                            | Spain      |                  | Repsol Química, S.A.               |                         | Repsol Investigaciones Petrolíferas S.A. |                | Chemicals                              |                          | G.I. |                      | 100   |                             
|                     |                                   | Cogeneración Gequisa, S.A. |            | Spain            |                                    | General Química, S.A.   |                                          |                |                                        | Electricity cogeneration |      | E.M.                 |       | 39.00                       
|                     | Dynasol Elastómeros, S.A.         |                            | Spain      |                  | Repsol Química, S.A.               |                         |                                          |                | Production of synhtetic rubber         |                          | P.I. |                      | 50.01 |                             
|                     | Dynasol Elastómeros, S.A. de C.V. |                            | Mexico     |                  | Repsol Química, S.A.               |                         |                                          |                | Production and marketing of chemicals  |                          | E.M. |                      | 49.99 |                             
|                     | Dynasol Gestión, S.A.             |                            | Spain      |                  | Repsol Química, S.A.               |                         |                                          |                | Management of Dynasol Elastómetros     |                          | E.M. |                      | 50.00 |                             

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

|                                            |                                  |                                      |          |                  |                                             |                                     |                              |                              |                                   |                  |      | Total % of Ownership |       | Amounts in Millions of Euros
|------------------------------------------- | -------------------------------- | ------------------------------------ | -------- | ---------------- | ------------------------------------------- | ----------------------------------- | ---------------------------- | ---------------------------- | --------------------------------- | ---------------- | ---- | -------------------- | ----- | ----------------------------
|
|Repsol Portugal Petróleo e Derivados, Ltda. |                                  | Portugal                             |          | Repsol YPF, S.A. |                                             | R. YPF Lubricantes y Especialidades |                              | Marketing of oil products    |                                   | G.I.             |      | 100                  |       | 100                         
|                                            | Gespost                          |                                      | Portugal |                  | Repsol Portugal Petróleo e Derivados, Ltda. |                                     |                              |                              | Marketing of oil products         |                  | G.I. |                      | 99.67 |                             
|Repsol Italia                               |                                  | Italy                                |          | Repsol YPF, S.A. |                                             | R. YPF Lubricantes y Especialidades |                              | Marketing of oil products    |                                   | G.I.             |      | 100                  |       | 100                         
|Gas Natural SDG, S.A.(7)                    |                                  | Spain                                |          | Repsol YPF, S.A. |                                             | Repsol Petróleo, S.A.               |                              | Marketing of gas             |                                   | P.I.             |      | 27.15                |       | 27.15                       
|                                            | Sagane, S.A.                     |                                      | Spain    |                  | Gas Natural SDG, S.A.                       |                                     | La Propagadora del Gas, S.A. |                              | Gas supply                        |                  | P.I. |                      | 27.15 |                             
|                                            |                                  | Europe Maghreb Pipeline, Ltd. (EMPL) |          | U.K.             |                                             | Sagane, S.A.                        |                              |                              |                                   | Gas transmission |      | P.I.                 |       | 19.71                       
|                                            |                                  | Metragaz, S.A.                       |          | Morocco          |                                             | Sagane, S.A.                        |                              |                              |                                   | Gas transmission |      | P.I.                 |       | 19.64                       
|                                            | Grupo Enagas, S.A.(5)            |                                      | Spain    |                  | Gas Natural SDG, S.A.                       |                                     |                              |                              | Gas supply and transmission       |                  | E.M. |                      | 10.49 |                             
|                                            | Sociedad de Gas de Euskadi, S.A. |                                      | Spain    |                  | Gas Natural SDG, S.A.                       |                                     |                              |                              | Gas distribution and transmission |                  | E.M. |                      | 5.57  |                             
|                                            | Gas Natural Soluciones S.L.      |                                      | Spain    |                  | Gas Natural SDG, S.A.                       |                                     | La Propagadora del Gas, S.A. |                              | Services                          |                  | P.I. |                      | 27.15 |                             
|                                            | Kromschroeder, S.A.              |                                      | Spain    |                  | Gas Natural SDG, S.A.                       |                                     |                              |                              | Meters                            |                  | E.M. |                      | 11.54 |                             
|                                            |                                  | Natural Energy, S.A.                 |          | Argentina        |                                             | Kromschroeder, S.A.                 |                              | La Propagadora del Gas, S.A. |                                   | Marketing of gas |      | P.I.                 |       | 13.54                       

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

| |                                              |                             |       |       |                       |                       |                              |  |                          |                  |      | Total % of Ownership |       | Amounts in Millions of Euros
| | -------------------------------------------- | --------------------------- | ----- | ----- | --------------------- | --------------------- | ---------------------------- |  | ------------------------ | ---------------- | ---- | -------------------- | ----- | ----------------------------
|
| | Gas Natural Castilla y León, S.A.            |                             | Spain |       | Gas Natural SDG, S.A. |                       | La Propagadora del Gas, S.A. |  | Gas distribution         |                  | P.I. |                      | 24.46 |                             
| | Gas Natural Castilla La Mancha, S.A.         |                             | Spain |       | Gas Natural SDG, S.A. |                       |                              |  | Gas distribution         |                  | P.I. |                      | 25.79 |                             
| | Gas Natural Distribución Eléctrica           |                             | Spain |       | Gas Natural SDG, S.A. |                       | La Propagadora del Gas, S.A. |  | Electricity distribution |                  | P.I. |                      | 27.15 |                             
| | Gas Natural Rioja, S.A.                      |                             | Spain |       | Gas Natural SDG, S.A. |                       |                              |  | Gas distribution         |                  | P.I. |                      | 23.76 |                             
| | Gas Navarra, S.A.                            |                             | Spain |       | Gas Natural SDG, S.A. |                       |                              |  | Gas distribution         |                  | P.I. |                      | 24.43 |                             
| | Gas Galicia SDG, S.A.                        |                             | Spain |       | Gas Natural SDG, S.A. |                       |                              |  | Gas distribution         |                  | P.I. |                      | 16.83 |                             
| |                                              | Gas Natural La Coruña, S.A. |       | Spain |                       | Gas Galicia SDG, S.A. |                              |  |                          | Gas distribution |      | P.I.                 |       | 15.32                       
| | Gas Aragón, S.A.                             |                             | Spain |       | Gas Natural SDG, S.A. |                       |                              |  | Gas distribution         |                  | E.M. |                      | 9.50  |                             
| | La Propagadora del Gas, S.A.                 |                             | Spain |       | Gas Natural SDG, S.A. |                       | ESESA                        |  | Portfolio Company        |                  | P.I. |                      | 27.15 |                             
| | Gas Natural Informática, S.A.                |                             | Spain |       | Gas Natural SDG, S.A. |                       | La Propagadora del Gas, S.A. |  | Computer services        |                  | P.I. |                      | 27.15 |                             
| | Gas Natural Andalucía, S.A.                  |                             | Spain |       | Gas Natural SDG, S.A. |                       | La Propagadora del Gas, S.A. |  | Gas distribution         |                  | P.I. |                      | 27.15 |                             
| | Compañía Auxiliar de Industrias Varias, S.A. |                             | Spain |       | Gas Natural SDG, S.A. |                       | La Propagadora del Gas, S.A. |  | Services                 |                  | P.I. |                      | 27.15 |                             

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

| |                                    |                                        |                           |                      |                       |                      |                              |                           |                                                          |                          |                   | Total % of Ownership   |       | Amounts in Millions of Euros
| | ---------------------------------- | -------------------------------------- | ------------------------- | -------------------- | --------------------- | -------------------- | ---------------------------- | ------------------------- | -------------------------------------------------------- | ------------------------ | ----------------- | ---------------------- | ----- | ----------------------------
|
| | La Energía, S.A.                   |                                        | Spain                     |                      | Gas Natural SDG, S.A. |                      | La Propagadora del Gas, S.A. |                           | Electricity cogeneration                                 |                          | P.I.              |                        | 27.15 |                             
| |                                    | A.E. Sanitaria Vall d' Hebrón          |                           | Spain                |                       | La Energía, S.A.     |                              |                           |                                                          | Electricity cogeneration |                   | P.I.                   |       | 22.06                       
| |                                    | Sociedad de Tratamiento Hornillos S.L. |                           | Spain                |                       | La Energía, S.A.     |                              |                           |                                                          | Electricity cogeneration |                   | P.I.                   |       | 21.72                       
| |                                    | UTE La Energía-SPA                     |                           | Spain                |                       | La Energía, S.A.     |                              |                           |                                                          | Electricity cogeneration |                   | P.I.                   |       | 16.29                       
| |                                    | A.E.C.S. Hospital Trias i Pujol        |                           | Spain                |                       | La Energía, S.A.     |                              |                           |                                                          | Electricity cogeneration |                   | P.I.                   |       | 13.58                       
| | Gas Natural Comercializadora, S.A. |                                        | Spain                     |                      | Gas Natural SDG, S.A. |                      | La Propagadora del Gas, S.A. |                           | Retailing of gas and industrial electricity              |                          | P.I.              |                        | 27.15 |                             
| | Invergas Puerto Rico               |                                        | Spain                     |                      | Gas Natural SDG, S.A. |                      | La Propagadora del Gas, S.A. |                           | Portfolio Company                                        |                          | P.I.              |                        | 27.15 |                             
| |                                    | Buenergía Gas & Power Ltd.             |                           | Puerto Rico          |                       | Invergas Puerto Rico |                              |                           |                                                          | Portfolio Company        |                   | P.I.                   |       | 25.79                       
| |                                    |                                        | Ecoeléctrica Holding Ltd. |                      | Puerto Rico           |                      | Buenergía Gas & Power LTD.   |                           |                                                          |                          | Portfolio Company |                        | P.I.  |                             
| |                                    |                                        |                           | Ecoeléctrica LP Ltd. |                       | Puerto Rico          |                              | Ecoeléctrica Holding Ltd. |                                                          | Ecoeléctrica Ltd.        |                   | Electricity production |       | P.I.                        
| |                                    |                                        |                           | Ecoeléctrica Ltd.    |                       | Puerto Rico          |                              | Ecoeléctrica Holding Ltd. |                                                          |                          |                   | Portfolio Company      |       | P.I.                        
| | Gas Natural Servicios SDG, S.A.    |                                        | Spain                     |                      | Gas Natural SDG, S.A. |                      | La Propagadora del Gas, S.A. |                           | Retailing of domestic gas and electricity and management |                          | P.I.              |                        | 27.15 |                             

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

| |                                          |                          |             |       |                       |                                |                              |       |                                      |                   |      | Total % of Ownership |       | Amounts in Millions of Euros
| | ---------------------------------------- | ------------------------ | ----------- | ----- | --------------------- | ------------------------------ | ---------------------------- | ----- | ------------------------------------ | ----------------- | ---- | -------------------- | ----- | ----------------------------
|
| |                                          | UTE GNS-Dalkia Energía   |             | Spain |                       | Gas Natural Services SDG, S.A. |                              |       |                                      | Energy management |      | P.I.                 |       | 13.58                       
| |                                          | Iradia Climatización AIE |             | Spain |                       | Gas Natural Services SDG, S.A. |                              | ESESA |                                      | Energy management |      | P.I.                 |       | 27.15                       
| | Gas Natural Electricidad SDG, S.A.       |                          | Spain       |       | Gas Natural SDG, S.A. |                                | La Propagadora del Gas, S.A. |       | Electricity production and retailing |                   | P.I. |                      | 27.15 |                             
| | Gas Natural Trading SDG, S.A.            |                          | Spain       |       | Gas Natural SDG, S.A. |                                | La Propagadora del Gas, S.A. |       | Trading of gas                       |                   | P.I. |                      | 27.15 |                             
| | Desarrollo del Cable, S.A.               |                          | Spain       |       | Gas Natural SDG, S.A. |                                | La Propagadora del Gas, S.A. |       | Communications cable                 |                   | P.I. |                      | 27.15 |                             
| | Equipos y Servicios, S.A. (ESESA)        |                          | Spain       |       | Gas Natural SDG, S.A. |                                | La Propagadora del Gas, S.A. |       | Services                             |                   | P.I. |                      | 27.15 |                             
| | Gas Natural Cantabria SDG, S.A.          |                          | Spain       |       | Gas Natural SDG, S.A. |                                | La Propagadora del Gas, S.A. |       | Gas distribution                     |                   | P.I. |                      | 24.55 |                             
| | Gas Natural Murcia SDG, S.A.             |                          | Spain       |       | Gas Natural SDG, S.A. |                                | La Propagadora del Gas, S.A. |       | Gas distribution                     |                   | P.I. |                      | 27.09 |                             
| | Gas Natural CEGAS                        |                          | Spain       |       | Gas Natural SDG, S.A. |                                | La Propagadora del Gas, S.A. |       | Gas distribution                     |                   | P.I. |                      | 24.55 |                             
| | Gas Natural Aprovisionamientos SDG, S.A. |                          | Spain       |       | Gas Natural SDG, S.A. |                                | Sagane, S.A.                 |       | Gas Supply                           |                   | P.I. |                      | 27.15 |                             
| | Gas Natural Finance, BV                  |                          | Netherlands |       | Gas Natural SDG, S.A. |                                |                              |       | Portfolio Company                    |                   | P.I. |                      | 27.15 |                             
| | Holding Gas Natural, S.A.                |                          | Spain       |       | Gas Natural SDG, S.A. |                                | La Propagadora del Gas, S.A. |       | Finance                              |                   | P.I. |                      | 27.15 |                             

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

| |                                                  |                                 |                                            |           |                        |                                      |                                     |                             |                                                  |                                      |                   | Total % of Ownership |       | Amounts in Millions of Euros
| | ------------------------------------------------ | ------------------------------- | ------------------------------------------ | --------- | ---------------------- | ------------------------------------ | ----------------------------------- | --------------------------- | ------------------------------------------------ | ------------------------------------ | ----------------- | -------------------- | ----- | ----------------------------
|
| | CEG Río, S.A.                                    |                                 | Brazil                                     |           | Gas Natural SDG, S.A.  |                                      | Gas Natural Internacional SDG, S.A. |                             | Marketing of gas                                 |                                      | P.I.              |                      | 10.39 |                             
| | Companhia Distribuidora de Gas do Río de Janeiro |                                 | Brazil                                     |           | Gas Natural SDG, S.A.  |                                      | Gas Natural Internacional SDG, S.A. |                             | Gas distribution                                 |                                      | P.I.              |                      | 7.81  |                             
| | Gas Natural Sao Paulo Sul, S.A.                  |                                 | Brazil                                     |           | Gas Natural, SDG, S.A. |                                      |                                     |                             | Gas distribution                                 |                                      | P.I.              |                      | 27.15 |                             
| | Gas Natural International, Ltd.                  |                                 | Irlanda                                    |           | Gas Natural SDG, S.A.  |                                      | La Propagadora del Gas, S.A.        |                             | Portfolio Company                                |                                      | P.I.              |                      | 27.15 |                             
| | Gas Natural Internacional SDG, S.A.              |                                 | Spain                                      |           | Gas Natural SDG, S.A.  |                                      | La Propagadora del Gas, S.A.        |                             | Portfolio Company                                |                                      | P.I.              |                      | 27.15 |                             
| |                                                  | Invergas, S.A.                  |                                            | Argentina |                        | Gas Natural Internacional, SDG, S.A. |                                     |                             |                                                  | Portfolio Company                    |                   | P.I.                 |       | 19.55                       
| |                                                  |                                 | Gas Natural Ban, S.A.                      |           | Argentina              |                                      | Invergas, S.A.                      |                             | Gas Natural Argentina SDG, S.A.                  |                                      | Gas distribution  |                      | P.I.  |                             
| |                                                  | Gas Natural Argentina SDG, S.A. |                                            | Argentina |                        | Gas Natural Internacional, SDG, S.A. |                                     |                             |                                                  | Portfolio Company                    |                   | P.I.                 |       | 19.55                       
| |                                                  | Gas Natural do Brasil           |                                            | Brazil    |                        | Gas Natural Internacional, SDG, S.A. |                                     |                             |                                                  | Electricity production and retailing |                   | P.I.                 |       | 27.15                       
| |                                                  | Serviconfort Brasil, S.A.       |                                            | Brazil    |                        | Gas Natural Internacional, SDG, S.A. |                                     | Gas Natural do Brasil, S.A. |                                                  | Services                             |                   | P.I.                 |       | 27.15                       
| |                                                  | Gas Natural México, S.A. de CV  |                                            | Mexico    |                        | Gas Natural Internacional, SDG, S.A. |                                     | Gas Natural SDG, S.A.       |                                                  | Gas distribution                     |                   | P.I.                 |       | 23.55                       
| |                                                  |                                 | Servicios de Energía de México, S.A. de CV |           | Mexico                 |                                      | Gas Natural México, S.A. de CV      |                             | Sistemas Administración y Services, S.A. de C.V. |                                      | Portfolio Company |                      | P.I.  |                             

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

| |                                                 |                                                  |                                           |        |                                      |                                |                                           |  |                                  |                                   |                  | Total % of Ownership |       | Amounts in Millions of Euros
| | ----------------------------------------------- | ------------------------------------------------ | ----------------------------------------- | ------ | ------------------------------------ | ------------------------------ | ----------------------------------------- |  | -------------------------------- | --------------------------------- | ---------------- | -------------------- | ----- | ----------------------------
|
| |                                                 |                                                  | Comercializadora Metrogas                 |        | Mexico                               |                                | Services de Energía de México, S.A. de CV |  | Gas Natural México, S.A. de C.V. |                                   | Gas distribution |                      | P.I.  |                             
| |                                                 |                                                  | Adm. Servicios Energía México, S.A. de CV |        | Mexico                               |                                | Services de Energía de México, S.A. de CV |  | Gas Natural México, S.A. de C.V. |                                   | Services         |                      | P.I.  |                             
| |                                                 | Energía y Confort Admón. de Personal, S.A. de CV |                                           | Mexico |                                      | Gas Natural México, S.A. de CV |                                           |  |                                  | Services                          |                  | P.I.                 |       | 23.55                       
| |                                                 | Gas Natural Servicios, S.A. de C.V.              |                                           | Mexico |                                      | Gas Natural México, S.A. de CV |                                           |  |                                  | Services                          |                  | P.I.                 |       | 23.55                       
| |                                                 | Transnatural RL de CV.                           |                                           | Mexico |                                      | Gas Natural México, S.A. de CV |                                           |  |                                  | Transmission and marketing of gas |                  | P.I.                 |       | 11.78                       
| |                                                 | CH4 Energía, S.A de CV.                          |                                           | Mexico |                                      | Gas Natural México, S.A. de CV |                                           |  |                                  | Transmission and marketing of gas |                  | P.I.                 |       | 11.78                       
| | Gas Natural Vendita Italia, S.p.a.              |                                                  | Italy                                     |        | Gas Natural Internacional SDG, S.A.  |                                | Gas Natural SDG, S.A.                     |  | Marketing of gas                 |                                   | P.I.             |                      | 27.15 |                             
| | Gas Natural Distribuzione Italia, S.p.a.        |                                                  | Italy                                     |        | Gas Natural Internacional SDG, S.A.  |                                | Gas Natural SDG, S.A.                     |  | Portfolio Company                |                                   | P.I.             |                      | 27.15 |                             
| | Sistemas Administración y Servicios, S.A. de CV |                                                  | Mexico                                    |        | Gas Natural Internacional, SDG, S.A. |                                | Gas Natural SDG, S.A.                     |  | Services                         |                                   | P.I.             |                      | 23.62 |                             
| | Natural Services, S.A.                          |                                                  | Argentina                                 |        | Gas Natural Internacional, SDG, S.A. |                                |                                           |  | Gas cylinder repair              |                                   | P.I.             |                      | 21.53 |                             
| | Serviconfort Colombia                           |                                                  | Colombia                                  |        | Gas Natural Internacional, SDG, S.A. |                                |                                           |  | Services                         |                                   | P.I.             |                      | 25.79 |                             
| | Gas Natural, S.A. ESP                           |                                                  | Colombia                                  |        | Gas Natural Internacional, SDG, S.A. |                                |                                           |  | Gas distribution                 |                                   | P.I.             |                      | 16.03 |                             

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

|                                       |                         |                             |                                      |                                    |                       |                                           |                                           |                                        |                   |                                        |                   | Total % of Ownership |       | Amounts in Millions of Euros |      
|-------------------------------------- | ----------------------- | --------------------------- | ------------------------------------ | ---------------------------------- | --------------------- | ----------------------------------------- | ----------------------------------------- | -------------------------------------- | ----------------- | -------------------------------------- | ----------------- | -------------------- | ----- | ---------------------------- | -----
|
|                                       |                         |                             | Gas Natural Cundiboyacense, S.A. ESP |                                    | Colombia              |                                           | Gas Natural, S.A. ESP                     |                                        |                   |                                        | Gas distribution  |                      | P.I.  |                              | 12.42
|                                       |                         |                             | Proinvergas, S.A.                    |                                    | Colombia              |                                           | Gas Natural, S.A. ESP                     |                                        |                   |                                        | Portfolio Company |                      | P.I.  |                              | 8.74 
|                                       |                         |                             | Gasoriente, S.A. ESP                 |                                    | Colombia              |                                           | Gas Natural, S.A. ESP                     |                                        |                   |                                        | Gas distribution  |                      | P.I.  |                              | 8.74 
|                                       |                         |                             |                                      | Gases de Barrancabermeja, S.A. ESP |                       | Colombia                                  |                                           | Gasoriente, S.A. ESP                   |                   |                                        |                   | Gas distribution     |       | P.I.                         |      
|                                       | Portal Gas Natural      |                             | Spain                                |                                    | Gas Natural SDG, S.A. |                                           |                                           |                                        | E-Business        |                                        | P.I.              |                      | 17.15 |                              | 63.16
|                                       |                         | Portal del instalador, S.A. |                                      | Spain                              |                       | Portal Gas Natural                        |                                           | Repsol YPF, S.A.                       |                   | Services                               |                   | P.I.                 |       | 22.86                        |      
|                                       | Torre Marenostrum, S.A. |                             | Spain                                |                                    | Gas Natural SDG, S.A. |                                           |                                           |                                        | Real Estate       |                                        | E.M.              |                      | 12.22 |                              | 45.00
|Proyectos Integrados Energéticos, S.A. |                         | Spain                       |                                      | Repsol YPF, S.A.                   |                       |                                           |                                           |                                        |                   | G.I.                                   |                   | 100                  |       | 100                          |      
|YPF, S.A. (7)                          |                         | Argentina                   |                                      | Repsol YPF, S.A.                   |                       | Repsol YPF Capital/ CAVEANT/R.Exploración |                                           | Oil and gas exploration and production |                   | G.I.                                   |                   | 99.04                |       | 99.04                        |      
|                                       | YPF International, S.A. |                             | Bolivia                              |                                    | YPF, S.A.             |                                           | Repsol YPF Bolivia/Repsol YPF E&P Bolivia |                                        | Portfolio Company |                                        | G.I.              |                      | 99.04 |                              | 100  
|                                       |                         | YPF South Sokang, Ltd.      |                                      | Cayman Islands                     |                       | YPF International, S.A.                   |                                           |                                        |                   | Oil and gas exploration and production |                   | G.I.                 |       | 99.04                        |      
|                                       |                         | YPF Energy Holdings N.V.    |                                      | Neth. Antilles                     |                       | YPF International, S.A.                   |                                           |                                        |                   | Portfolio Company                      |                   | G.I.                 |       | 99.04                        |      
|                                       |                         | YPF Jambi Merang, B.V.      |                                      | Netherlands                        |                       | YPF International, S.A.                   |                                           |                                        |                   | Oil and gas exploration and production |                   | G.I.                 |       | 99.04                        |      

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

| |                   |                            |                          |                 |           |                         |                          |  |                   |                                        |                                        | Total % of Ownership |       | Amounts in Millions of Euros |      
| | ----------------- | -------------------------- | ------------------------ | --------------- | --------- | ----------------------- | ------------------------ |  | ----------------- | -------------------------------------- | -------------------------------------- | -------------------- | ----- | ---------------------------- | -----
|
| |                   | YPF Ecuador Inc.           |                          | Cayman Islands  |           | YPF International, S.A. |                          |  |                   | Oil and gas exploration and production |                                        | G.I.                 |       | 99.04                        |      
| |                   | Greenstone Assurance, Ltd. |                          | Bermuda Islands |           | YPF International, S.A. |                          |  |                   | Reinsurance                            |                                        | G.I.                 |       | 99.04                        |      
| |                   | YPF Malaysia, Ltd.         |                          | Cayman Islands  |           | YPF International, S.A. |                          |  |                   | Oil and gas exploration and production |                                        | G.I.                 |       | 99.04                        |      
| |                   | YPF Indonesia, Ltd.        |                          | Cayman Islands  |           | YPF International, S.A. |                          |  |                   | Oil and gas exploration and production |                                        | G.I.                 |       | 99.04                        |      
| |                   | Maxus Guyana, Ltd.         |                          | Cayman Islands  |           | YPF International, S.A. |                          |  |                   | Oil and gas exploration and production |                                        | G.I.                 |       | 99.04                        |      
| | YPF Holdings Inc. |                            | U.S.A.                   |                 | YPF, S.A. |                         |                          |  | Portfolio Company |                                        | G.I.                                   |                      | 99.04 |                              | 100  
| |                   | CLH Holdings               |                          | U.S.A.          |           | YPF Holdings Inc.       |                          |  |                   | Finance                                |                                        | G.I.                 |       | 99.04                        |      
| |                   |                            | Tierra Solutions Inc.    |                 | U.S.A.    |                         | CLH Holdings             |  |                   |                                        | Other business activities              |                      | G.I.  |                              | 99.04
| |                   | Maxus Energy Corporation   |                          | U.S.A.          |           | YPF Holdings Inc.       |                          |  |                   | Oil and gas exploration and production |                                        | G.I.                 |       | 99.04                        |      
| |                   |                            | Maxus US Exploration Co. |                 | U.S.A.    |                         | Maxus Energy Corporation |  |                   |                                        | Oil and gas exploration and production |                      | G.I.  |                              | 99.04
| |                   |                            | Midgard Energy Co.       |                 | U.S.A.    |                         | Maxus Energy Corporation |  |                   |                                        | Oil and gas exploration and production |                      | G.I.  |                              | 99.04
| |                   |                            | Diamond Gateway Coal Co. |                 | U.S.A.    |                         | Maxus Energy Corporation |  |                   |                                        | Other business activities              |                      | G.I.  |                              | 99.04

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

| |                                                  |                                 |                          |              |                                 |                      |                          |                  |                                               |                                         |                           | Total % of Ownership      |       | Amounts in Millions of Euros |      
| | ------------------------------------------------ | ------------------------------- | ------------------------ | ------------ | ------------------------------- | -------------------- | ------------------------ | ---------------- | --------------------------------------------- | --------------------------------------- | ------------------------- | ------------------------- | ----- | ---------------------------- | -----
|
| |                                                  |                                 | Wheeling Gateway         |              | U.S.A.                          |                      | Maxus Energy Corporation |                  |                                               |                                         | Other business activities |                           | G.I.  |                              | 99.04
| |                                                  |                                 |                          | Gateway Coal |                                 | U.S.A.               |                          | Wheeling Gateway |                                               | Diamond Gateway Coal                    |                           | Other business activities |       | G.I.                         |      
| |                                                  | Ryttsa USA Inc.                 |                          | U.S.A.       |                                 | YPF Holdings Inc.    |                          |                  |                                               | Retailing of oil products               |                           | G.I.                      |       | 99.04                        |      
| |                                                  |                                 | Global Companies LLc.(4) |              | U.S.A.                          |                      | Ryttsa USA Inc.          |                  |                                               |                                         | Retailing of oil products |                           | P.I.  |                              | 50.51
| | Compañía Mega                                    |                                 | Argentina                |              | YPF, S.A.                       |                      |                          |                  | Gas fractionation                             |                                         | P.I.                      |                           | 37.64 |                              | 38.00
| | Operadora de Estaciones de Servicio, S.A. OPESSA |                                 | Argentina                |              | YPF, S.A.                       |                      | Repsol YPF Gas, S.A.     |                  | Marketing of oil and gas                      |                                         | G.I.                      |                           | 98.90 |                              | 99.85
| | Oiltanking Ebytem, S.A.                          |                                 | Argentina                |              | YPF, S.A.                       |                      |                          |                  | Oil and gas transportation and storage        |                                         | E.M.                      |                           | 29.71 |                              | 30.00
| | A&C Pipeline Holding                             |                                 | Cayman Islands           |              | YPF, S.A.                       |                      |                          |                  | Finance                                       |                                         | E.M.                      |                           | 17.83 |                              | 18.00
| |                                                  | Oleoducto Transandino Argentino |                          | Argentina    |                                 | A&C Pipeline Holding |                          |                  |                                               | Oil pipeline construction and operation |                           | E.M.                      |       | 17.83                        |      
| |                                                  | Oleoducto Transandino Chile     |                          | Chile        |                                 | A&C Pipeline Holding |                          |                  |                                               | Oil pipeline construction and operation |                           | E.M.                      |       | 17.83                        |      
| | Gasoducto del Pacífico Argentina, S.A.           |                                 | Argentina                |              | Gasoducto Pacífico Cayman, S.A. |                      |                          |                  | Construction and operation of a gas pipeline  |                                         | E.M.                      |                           | 8.67  |                              | 8.75 
| | Petroken Petroquímica Ensenada, S.A.             |                                 | Argentina                |              | YPF, S.A.                       |                      |                          |                  | Manufacturing and marketing of petrochemicals |                                         | E.M.                      |                           | 49.52 |                              | 50.00

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

| |                                        |                                |                |           |           |                            |          |           |                                               |                              |      | Total % of Ownership |       | Amounts in Millions of Euros
| | -------------------------------------- | ------------------------------ | -------------- | --------- | --------- | -------------------------- | -------- | --------- | --------------------------------------------- | ---------------------------- | ---- | -------------------- | ----- | ----------------------------
|
| | PBB Polisur                            |                                | Argentina      |           | YPF, S.A. |                            |          |           | Manufacturing and marketing of petrochemicals |                              | E.M. |                      | 27.73 |                             
| | Profertil                              |                                | Argentina      |           | YPF, S.A. |                            |          |           | Manufacture and sale of gas products          |                              | P.I. |                      | 49.52 |                             
| | Refinerías del Norte, S.A. (REFINOR)   |                                | Argentina      |           | YPF, S.A. |                            |          |           | Refining and marketing of oil products        |                              | P.I. |                      | 49.52 |                             
| | Terminales Marítimas Patagónicas, S.A. |                                | Argentina      |           | YPF, S.A. |                            |          |           | Logistics of oil by-products                  |                              | E.M. |                      | 32.83 |                             
| | Oleoductos del Valle, S.A. (OLDELVAL)  |                                | Argentina      |           | YPF, S.A. |                            |          |           | Logistics of oil by-products                  |                              | E.M. |                      | 36.64 |                             
| | Gas Argentino, S.A. (GASA)             |                                | Argentina      |           | YPF, S.A. |                            |          |           | Portfolio Company                             |                              | E.M. |                      | 44.89 |                             
| |                                        | Metrogas, S.A.                 |                | Argentina |           | Gas Argentino, S.A. (GASA) |          |           |                                               | Gas distribution             |      | E.M.                 |       | 31.42                       
| | Poligas Luján, S.A.                    |                                | Argentina      |           | YPF, S.A. |                            |          |           | Bottling, transmission and marketing of LPG   |                              | G.I. |                      | 50.01 |                             
| | A.P.D.C.                               |                                | Cayman Islands |           | YPF, S.A. |                            |          |           | Oil and gas exploration and production        |                              | G.I. |                      | 99.04 |                             
| | Enerfín, S.A.                          |                                | Uruguay        |           | YPF, S.A. |                            |          |           | Finance                                       |                              | G.I. |                      | 99.04 |                             
| | Astra Evangelista, S.A.                |                                | Argentina      |           | YPF, S.A. |                            | A.P.D.C. |           | Engineering and construction                  |                              | G.I. |                      | 99.04 |                             
| |                                        | AESA Construcciones y Services |                | Brazil    |           | Astra Evangelista, S.A.    |          | YPF, S.A. |                                               | Engineering and construction |      | G.I.                 |       | 99.04                       

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

|                           |                                  |                                |                |                  |                            |                                                                                |                                       |                                              |                                                    |                                         |      | Total % of Ownership |       | Amounts in Millions of Euros |      
|-------------------------- | -------------------------------- | ------------------------------ | -------------- | ---------------- | -------------------------- | ------------------------------------------------------------------------------ | ------------------------------------- | -------------------------------------------- | -------------------------------------------------- | --------------------------------------- | ---- | -------------------- | ----- | ---------------------------- | -----
|
|                           |                                  | Adicor, S.A.                   |                | Uruguay          |                            | Astra Evangelista, S.A.                                                        |                                       |                                              |                                                    |                                         |      | G.I.                 |       | 99.04                        |      
|                           |                                  | Gasoducto Oriental, S.A.       |                | Argentina        |                            | Astra Evangelista, S.A.                                                        |                                       |                                              |                                                    | Gas distribution                        |      | E.M.                 |       | 16.50                        |      
|                           | Inversora Dock Sud, S.A.         |                                | Argentina      |                  | YPF, S.A.                  |                                                                                |                                       |                                              | Portfolio Company                                  |                                         | E.M. |                      | 42.45 |                              | 42.86
|                           |                                  | Central Dock Sud, S.A.         |                | Argentina        |                            | Inversora Dock Sud, S.A.                                                       |                                       | YPF, S.A.                                    |                                                    | Electric power generation and retailing |      | E.M.                 |       | 39.53                        |      
|                           | Pluspetrol Energy, S.A.          |                                | Argentina      |                  | YPF, S.A.                  |                                                                                |                                       |                                              | Oil and gas exploration and production             |                                         | P.I. |                      | 44.57 |                              | 45.00
|Repsol YPF Chile, Limitada |                                  | Chile                          |                | Repsol YPF, S.A. |                            | OPESSA                                                                         |                                       | Administration of YPF's investments in Chile |                                                    | G.I.                                    |      | 100                  |       | 100                          |      
|                           | Operaciones y Services YPF       |                                | Chile          |                  | Repsol YPF Chile, Limitada |                                                                                | Petróleos Transandinos, S.A.          |                                              | Operation of service stations                      |                                         | G.I. |                      | 100   |                              | 100  
|                           | Petróleos Transandinos YPF, S.A. |                                | Chile          |                  | Repsol YPF Chile, Limitada |                                                                                | YPF, S.A. / OPESSA                    |                                              | Marketing and distribution of fuels and lubricants |                                         | G.I. |                      | 100   |                              | 100  
|Repsol YPF Bolivia, S.A.   |                                  | Bolivia                        |                | Repsol YPF, S.A. |                            | R. Exploración/R. Exploración Perú/R. Exploración Colombia/ R. YPF E&P Bolivia |                                       | Portfolio Company                            |                                                    | G.I.                                    |      | 100                  |       | 100                          |      
|                           | Repsol YPF E&P de Bolivia, S.A.  |                                | Bolivia        |                  | Repsol YPF Bolivia, S.A.   |                                                                                | Rex. Perú, S.A. / Rex. Colombia, S.A. |                                              | Oil and gas exploration and production             |                                         | G.I. |                      | 100   |                              | 100  
|                           | Andina Corporation               |                                | Cayman Islands |                  | Repsol YPF Bolivia, S.A.   |                                                                                |                                       |                                              | Finance                                            |                                         | G.I. |                      | 100   |                              | 100  
|                           |                                  | Empresa Petrolera Andina, S.A. |                | Bolivia          |                            | Andina Corporation                                                             |                                       |                                              |                                                    | Oil and gas exploration and production  |      | G.I.                 |       | 50.00                        |      

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MAIN REPSOL YPF GROUP INVESTEES AS OF DECEMBER 31, 2003

|                        |                                            |                          |                 |                  |                          |                                |                                                 |                                           |                                                  |                             |                          | Total % of Ownership |       | Amounts in Millions of Euros |      
|----------------------- | ------------------------------------------ | ------------------------ | --------------- | ---------------- | ------------------------ | ------------------------------ | ----------------------------------------------- | ----------------------------------------- | ------------------------------------------------ | --------------------------- | ------------------------ | -------------------- | ----- | ---------------------------- | -----
|
|                        |                                            |                          | Transierra S.A. |                  | Bolivia                  |                                | Empresa Petrolera Andina, S.A.                  |                                           |                                                  |                             | Oil and gas transmission |                      | E.M.  |                              | 22.25
|                        | Maxus Bolivia Inc.                         |                          | Cayman Islands  |                  | Repsol YPF Bolivia, S.A. |                                |                                                 |                                           | Oil and gas exploration and production           |                             | G.I.                     |                      | 100   |                              | 100  
|                        | AESA Construcciones y Services Bolivia     |                          | Bolivia         |                  | Repsol YPF Bolivia, S.A. |                                | R. YPF E&P de Bolivia, S.A. / Astra Evangelista |                                           | Engineering and construction                     |                             | E.M.                     |                      | 100   |                              | 100  
|Repsol YPF Brasil, S.A. |                                            | Brazil                   |                 | Repsol YPF, S.A. |                          | OPESSA                         |                                                 | Exploitation and marketing of oil and gas |                                                  | G.I.                        |                          | 100                  |       | 100                          |      
|                        | Repsol YPF Distribuidora, S.A.             |                          | Brazil          |                  | Repsol YPF Brasil, S.A.  |                                |                                                 |                                           | Operation and administration consulting services |                             | G.I.                     |                      | 100   |                              | 100  
|                        | Transportadora Sul Brasileira do Gas, S.A. |                          | Brazil          |                  | Repsol YPF Brasil, S.A.  |                                |                                                 |                                           | Gas supply and logistics                         |                             | E.M.                     |                      | 15.00 |                              | 15.00
|                        | REFAP                                      |                          | Brazil          |                  | Repsol YPF Brasil, S.A.  |                                |                                                 |                                           | Refining and marketing of oil products           |                             | P.I.                     |                      | 30.00 |                              | 30.00
|                        | Refinería de Petróleos Manguinhos          |                          | Brazil          |                  | Repsol YPF Brasil, S.A.  |                                |                                                 |                                           | Refining and marketing of oil products           |                             | P.I.                     |                      | 30.71 |                              | 30.71
|                        |                                            | Manguinhos Distribuidora |                 | Brazil           |                          | Refinería Petróleos Manguinhos |                                                 |                                           |                                                  | Marketing of oil products   |                          | P.I.                 |       | 30.71                        |      
|                        |                                            | Wall Química, S.A.       |                 | Brazil           |                          | Refinería Petróleos Manguinhos |                                                 | Wall Petróleo, S.A.                       |                                                  | Marketing of petrochemicals |                          | P.I.                 |       | 30.71                        |      
|                        | Operadora de Postos de Servicos Ltda.      |                          | Brazil          |                  | Repsol YPF Brasil, S.A.  |                                | Repsol YPF Importadora de Productos             |                                           | Operation of service stations                    |                             | G.I.                     |                      | 100   |                              | 100  
|                        | Repsol YPF Importadora de Productos, Ltda. |                          | Brazil          |                  | Repsol YPF Brasil, S.A.  |                                |                                                 |                                           | Marketing of oil products                        |                             | G.I.                     |                      | 100   |                              | 100  

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Consolidation Method

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EXHIBIT II

HOLDINGS AND / OR DUTIES OF THE DIRECTORS IN COMPANIES ENGAGING IN AN ACTIVITY WHICH IS IDENTICAL, SIMILAR OR SUPPLEMENTARY TO THE ACTIVITY THAT CONSTITUTES THE CORPORATE
PURPOSE OF REPSOL YPF, S.A. (*)

(*) According to information provided by each of the members of the Board of Directors.

D. Antonio Brufau Niubó

DUTIES:



HOLDINGS:



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Exhibit Index

|1.1  |  | By-laws (Estatutos) of Repsol YPF, S.A., as amended (Spanish Version)                                                                                                                                                                                                                                                                                                
|---- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|1.2  |  | By-laws (Estatutos) of Repsol YPF, S.A., as amended (English Version)                                                                                                                                                                                                                                                                                                
|2.1  |  | Indenture among Repsol International Finance B.V., Repsol S.A. and The Chase Manhattan Bank, N.A., as Trustee, dated as of May 15, 1995*                                                                                                                                                                                                                             
|2.2  |  | Trust Deed dated May 5, 2000 among Repsol International Finance B.V., Repsol, S.A. and Citicorp Trustee Company Limited relating to the €1,000,000,000 6% Guaranteed Notes due 2010 issued by Repsol International
Finance B.V. and guaranteed by Repsol, S.A.**                                                                                                     
|2.3  |  | Supplemental Trust Deed dated June 21, 2001 among Repsol International Finance, B.V., Repsol YPF, S.A. and Citicorp Trustee Company Limited relating to the €175,000,000 6% Guaranteed Notes due 2010 issued by Repsol
International Finance, B.V. and guaranteed by Repsol YPF, S.A.***                                                                             
|2.4  |  | Pricing Supplement dated December 3, 2001 relating to the €750,000,000 5.75% Notes due 2006 issued by Repsol International Finance, B.V. under the €5,000,000,000 Euro Medium Term Note Programme guaranteed by
Repsol YPF, S.A.***                                                                                                                                  
|2.5  |  | Pricing Supplement dated July 18, 2003 relating to the €1,000,000,000 5% Floating Rate Notes due 2010 issued by Repsol Intentional Finance, B.V. under the €5,000,000,000 Euro Medium Term Note Programme
guaranteed by Repsol YPF, S.A.                                                                                                                             
|2.6  |  | Amended and Restated Trust Deed dated November 4, 2003 among Repsol International Finance, B.V., Repsol YPF, S.A. and Citicorp Trustee Company Limited relating to the €5,000,000,000 Guaranteed Euro Medium Term Notes
Programme of Repsol International Finance, B.V. due from one month to 30 years from the date of original issue guaranteed by Repsol YPF, S.A.
|4.1  |  | Shareholders' Agreement between Repsol YPF and La Caixa, dated January 11, 2000****                                                                                                                                                                                                                                                                                  
|4.2  |  | Novation Agreement between Repsol YPF and La Caixa, dated May 16, 2002 ****                                                                                                                                                                                                                                                                                          
|4.3  |  | Addendum to the Novation Agreement between Repsol YPF and La Caixa of May 16, 2002, dated December 16, 2002 ****                                                                                                                                                                                                                                                     
|4.4  |  | Second Addendum to the Novation Agreement between Repsol YPF and La Caixa of May 16, 2002, dated June 20, 2003 ****                                                                                                                                                                                                                                                  
|8.1  |  | List of significant subsidiaries                                                                                                                                                                                                                                                                                                                                     
|10.1 |  | Consent of Deloitte & Touche España, S.L.                                                                                                                                                                                                                                                                                                                            
|10.2 |  | Consent of PricewaterhouseCoopers                                                                                                                                                                                                                                                                                                                                    
|10.3 |  | Consent of Gaffney, Cline & Associates                                                                                                                                                                                                                                                                                                                               
|10.4 |  | Consent of DeGolyer and MacNaughton                                                                                                                                                                                                                                                                                                                                  
|11.1 |  | Code of ethics                                                                                                                                                                                                                                                                                                                                                       
|11.2 |  | Code of ethics (English translation)                                                                                                                                                                                                                                                                                                                                 
|12.1 |  | Section 302 Certification by the Chief Executive Officer                                                                                                                                                                                                                                                                                                             
|12.2 |  | Section 302 Certification by the Chief Financial Officer                                                                                                                                                                                                                                                                                                             
|13.1 |  | Section 906 Certification                                                                                                                                                                                                                                                                                                                                            

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