+-----------------------------------------------------------------------+
| 19 Attachment 3: Supplem                                              |
| ental Information on Petroleum Exploration and Production Activities  |
|                                                                       |
| Under the US Financial Accounting Standard no. 69 (FAS 69) and other  |
| information – Unaudited                                               |
+-----------------------------------------------------------------------+

19.1 PTTEP and its Subsidiaries’ Petroleum Reserves Report As of
December 31, 2003

  The total Proved Reserves of PTT Exploration and Production Public
  Company Limited (PTTEP) and its Subsidiaries as of December 31, 2003
  are shown in the attached table. The Proved Reserves are reviewed
  annually by company’s earth scientists and reservoir engineers to
  ensure rigorous professional standards. The Proved Reserves are
  reported on a gross basis, which includes the company’s net working
  interest and related host country’s interest.

  No reserve quantities have been recorded for the company on Blocks B,
  48/95, 52/97, 9-2, and 16-1 Projects in offshore Vietnam due to no
  commercial arrangement has been established for the discoveries.

  The total Proved Reserves (Consolidated Companies) as of December 31,
  2003 of PTTEP and its Subsidiaries are 112 Million Stock Tank Barrels
  (MMSTB) for crude and condensate, and 5,137 Billion Standard Cubic
  Feet (BSCF) for gas. The total Proved Reserves (Consolidated
  Companies) in term of oil equivalent is 882 Million Barrels (MMBOE).

  The total production in 2003 (Consolidated Companies) is 44 MMBOE or
  equivalent to the production rate of approximately 120,000 Barrels of
  Oil Equivalent per Day (BOED), approximately 10,000 BOED or 9%
  increase from last year. The production increase was mainly attributed
  to the increase of petroleum production from Pailin projects and the
  increased interest in Yetagun Project.

  PTTEP indirectly holds 34.20% interest in PT. Medco Energi
  Internasional Tbk. (Medco), an Indonesia upstream oil and gas
  exploration and production company. PTTEP’s share of Medco’s Proved
  Reserves are 40 MMSTB for crude and condensate, and 93 BSCF for gas.
  The total Proved Reserves in term of oil equivalent is 55 Million
  Barrels (MMBOE). Medco’s Proved Reserves were certified by Gaffney,
  Cline & Associates (Consultants) Pte. Ltd. (GCA) as of January 1,
  2004.

  The total PTTEP’s worldwide Proved Reserves as of December 31, 2003,
  including investment in Medco are 152 MMSTB for crude and condensate,
  and 5,230 BSCF for gas, or approximately 937 MMBOE.

+-----------------------------+---------+--------+---------+--------+
|                             | Crude & |        | Natural |        |
|                             | Con     |        | Gas     |        |
|                             | densate |        |         |        |
+-----------------------------+---------+--------+---------+--------+
|                             | (       |        | (       |        |
|                             | Million |        | Billion |        |
|                             | Barrel) |        | Cubic   |        |
|                             |         |        | Feet)   |        |
+-----------------------------+---------+--------+---------+--------+
|                             | D       | F      | Dome    | F      |
|                             | omestic | oreign | stic⁽²⁾ | oreign |
|                             | ⁽²⁾     |        |         |        |
+-----------------------------+---------+--------+---------+--------+
| Company's share of reserves |         |        |         |        |
| ⁽¹⁾                         |         |        |         |        |
+-----------------------------+---------+--------+---------+--------+
| Of consolidated companies   |         |        |         |        |
+-----------------------------+---------+--------+---------+--------+
|  As of December 31, 2002    | 89      | 9      | 2,727   | 1,865  |
+-----------------------------+---------+--------+---------+--------+
| 1) Revision of previous     | 8       | (0.02) | 187     | (1)    |
| estimates                   |         |        |         |        |
+-----------------------------+---------+--------+---------+--------+
| 2) Improved recovery        | -       | -      | -       | -      |
+-----------------------------+---------+--------+---------+--------+
| 3) Extensions and           | 11      | -      | 470     | -      |
| discoveries                 |         |        |         |        |
+-----------------------------+---------+--------+---------+--------+
| 4) Purchases/sales of       | -       | 3      | -       | 124    |
| petroleum in place⁽⁴⁾       |         |        |         |        |
+-----------------------------+---------+--------+---------+--------+
| 5) Production               | (7)     | (0.44) | (162)   | (78)   |
+-----------------------------+---------+--------+---------+--------+
|  T                          | 101     | 11     | 3,222   | 1,915  |
| otal consolidated companies |         |        |         |        |
|                             |         |        |         |        |
|  (December 31, 2003)        |         |        |         |        |
+-----------------------------+---------+--------+---------+--------+

+-----------------------------+-------+--------+-------+-----+------+
|                             | Total |        | B     |     |      |
|                             | (Dom  |        | arrel |     |      |
|                             | estic |        | of    |     |      |
|                             | &     |        | Oil   |     |      |
|                             | For   |        | Equiv |     |      |
|                             | eign) |        | alent |     |      |
+-----------------------------+-------+--------+-------+-----+------+
|                             | Crude | N      | (Mi   |     |      |
|                             | &     | atural | llion |     |      |
|                             |       | Gas    | Ba    |     |      |
|                             |       |        | rrel) |     |      |
+-----------------------------+-------+--------+-------+-----+------+
|                             | Conde | (B     |       |     |      |
|                             | nsate | illion |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
|                             | (Mi   | Cubic  | D     | F   | T    |
|                             | llion | Feet)  | omest | ore | otal |
|                             | Ba    |        | ic⁽²⁾ | ign |      |
|                             | rrel) |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
| Company's share of reserves |       |        |       |     |      |
| ⁽¹⁾                         |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
| Of consolidated companies   |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
|  As of December 31, 2002    | 98    | 4,592  | 519   | 249 | 768  |
+-----------------------------+-------+--------+-------+-----+------+
| 1) Revision of previous     | 8     | 186    | 41    | 4   | 45   |
| estimates                   |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
| 2) Improved recovery        | -     | -      | -     | -   | -    |
+-----------------------------+-------+--------+-------+-----+------+
| 3) Extensions and           | 11    | 470    | 88    | -   | 88   |
| discoveries                 |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
| 4) Purchases/ sales of      | 3     | 124    | -     | 25  | 25   |
| petroleum in place ⁽⁴⁾      |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
| 5) Production               | (8)   | (235)  | (34)  | (   | (44) |
|                             |       |        |       | 10) |      |
+-----------------------------+-------+--------+-------+-----+------+
| Total consolidated          | 112   | 5,137  | 614   | 268 | 882  |
| companies                   |       |        |       |     |      |
|                             |       |        |       |     |      |
| (December 31, 2003)         |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
| MEDCO ⁽³⁾                   | 40    | 93     | -     | 55  | 55   |
+-----------------------------+-------+--------+-------+-----+------+
| TOTAL WORLDWIDE             | 152   | 5,230  | 614   | 323 | 937  |
|                             |       |        |       |     |      |
| (December 31, 2003)         |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+

+-----------------------------+---------+--------+---------+--------+
|                             | Crude & |        | Natural |        |
|                             | Con     |        | Gas     |        |
|                             | densate |        |         |        |
+-----------------------------+---------+--------+---------+--------+
|                             | (       |        | (       |        |
|                             | Million |        | Billion |        |
|                             | Barrel) |        | Cubic   |        |
|                             |         |        | Feet)   |        |
+-----------------------------+---------+--------+---------+--------+
|                             | D       | F      | Dome    | F      |
|                             | omestic | oreign | stic⁽²⁾ | oreign |
|                             | ⁽²⁾     |        |         |        |
+-----------------------------+---------+--------+---------+--------+
| Company's share of reserves |         |        |         |        |
| ⁽¹⁾                         |         |        |         |        |
+-----------------------------+---------+--------+---------+--------+
| Of consolidated companies   |         |        |         |        |
+-----------------------------+---------+--------+---------+--------+
|  As of December 31, 2001    | 89      | 9      | 2,707   | 1,933  |
+-----------------------------+---------+--------+---------+--------+
| 1) Revision of previous     | 5       | -      | 122     | -      |
| estimates                   |         |        |         |        |
+-----------------------------+---------+--------+---------+--------+
| 2) Improved recovery        | 0⁽⁵⁾    | -      | (0.1)   | -      |
+-----------------------------+---------+--------+---------+--------+
| 3) Extensions and           | 2       | -      | 50      | -      |
| discoveries                 |         |        |         |        |
+-----------------------------+---------+--------+---------+--------+
| 4) Purchases/sales of       | -       | -      | -       | -      |
| petroleum in place          |         |        |         |        |
+-----------------------------+---------+--------+---------+--------+
| 5) Production               | (7)     | (0.3)  | (152)   | (68)   |
+-----------------------------+---------+--------+---------+--------+
|  T                          | 89      | 9      | 2,727   | 1,865  |
| otal consolidated companies |         |        |         |        |
|                             |         |        |         |        |
|  (December 31, 2002)        |         |        |         |        |
+-----------------------------+---------+--------+---------+--------+

+-----------------------------+-------+--------+-------+-----+------+
|                             | Total |        | B     |     |      |
|                             | (Dom  |        | arrel |     |      |
|                             | estic |        | of    |     |      |
|                             | &     |        | Oil   |     |      |
|                             | For   |        | Equiv |     |      |
|                             | eign) |        | alent |     |      |
+-----------------------------+-------+--------+-------+-----+------+
|                             | Crude | N      | (Mi   |     |      |
|                             | &     | atural | llion |     |      |
|                             |       | Gas    | Ba    |     |      |
|                             |       |        | rrel) |     |      |
+-----------------------------+-------+--------+-------+-----+------+
|                             | Conde | (B     |       |     |      |
|                             | nsate | illion |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
|                             | (Mi   | Cubic  | D     | F   | T    |
|                             | llion | Feet)  | omest | ore | otal |
|                             | Ba    |        | ic⁽²⁾ | ign |      |
|                             | rrel) |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
| Company's share of reserves |       |        |       |     |      |
| ⁽¹⁾                         |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
| Of consolidated companies   |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
|  As of December 31, 2001    | 98    | 4,640  | 510   | 258 | 768  |
+-----------------------------+-------+--------+-------+-----+------+
| 1) Revision of previous     | 5     | 122    | 30    | -   | 30   |
| estimates                   |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
| 2) Improved recovery        | 0⁽⁵⁾  | (0.1)  | (     | -   | (0   |
|                             |       |        | 0.02) |     | .02) |
+-----------------------------+-------+--------+-------+-----+------+
| 3) Extensions and           | 2     | 50     | 10    | -   | 10   |
| discoveries                 |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
| 4) Purchases/ sales of      | -     | -      | -     | -   | -    |
| petroleum in place          |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
| 5) Production               | (7)   | (220)  | (31)  | (9) | (40) |
+-----------------------------+-------+--------+-------+-----+------+
| Total consolidated          | 98    | 4,592  | 519   | 249 | 768  |
| companies                   |       |        |       |     |      |
|                             |       |        |       |     |      |
| (December 31, 2002)         |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+
| MEDCO ⁽³⁾                   | 50    | 43     | -     | 58  | 58   |
+-----------------------------+-------+--------+-------+-----+------+
| TOTAL WORLDWIDE             | 148   | 4,635  | 519   | 307 | 826  |
|                             |       |        |       |     |      |
| (December 31, 2002)         |       |        |       |     |      |
+-----------------------------+-------+--------+-------+-----+------+

(1) The Proved Reserves are reported on a gross basis which includes the
    company's net working interest and the related host country
    interest.

(2) Includes JDA Project

(3) PTTEP indirectly holds 34.20% interest in Medco. Medco's proved
    reserves as of January 1, 2004 and 2003 were certified by Gaffney,
    Clines & Associates (Consultants) Pte. Ltd.

(4) PTTEP's interest in Yetagun increased from 14.1667% to 19.31784%

(5) Insignificant volume

 19.2 Capitalized costs relating to oil and gas producing activities

Capitalized costs represent cumulative expenditures for proved and
unproved properties, and support equipment and facilities used in oil
and gas exploration and production operations together with related
accumulated depreciation, depletion and amortization. Proved properties
include wells, equipment, transportation pipeline and related producing
facilities associated with proved reserves project. Unproved properties
represent amounts associated with non-proved reserve project. Support
equipment and facilities include warehouse, field offices, vehicles and
movable assets used in oil and gas producing activities. The net
capitalized costs represent the undepreciated value for these assets.

  -------------------------------------------- -------------- ------------
  (Million Baht)                               2003           2002
                                                              Restated

  Proved properties                            71,892         61,273

  Unproved properties                          1,105          1,612

  Accrued decommissioning costs                4,293          3,715

  Support equipment and facilities             325            435

  Gross capitalized costs                      77,615         67,035

  Accumulated depreciation, depletion, and     (25,690)       (20,172)
  amortization                                                

  Net capitalized costs                        51,925         46,863

  Capitalized costs of equity company ⁽¹⁾      4,724          4,315
  -------------------------------------------- -------------- ------------

(1) Represents PTTEP’s share of net capitalized costs of investment in
    Medco

19.3 Costs Incurred in oil and gas property acquisition, exploration,
and development activities

Costs incurred represent amounts both capitalized and charged to expense
during the year. Property acquisition costs include costs to purchase
proved and unproved properties. Exploration costs include the costs of
geological and geophysical work, carrying and retaining undeveloped
properties, and drilling and equipping exploratory wells. Development
costs include costs associated with drilling and equipping development
wells, improved recovery systems, facilities for extraction, treating,
gathering and storage, producing facilities for existing developed
reserves, and costs associated with transportation pipeline

  ------------------------ ---------- --------- ------- ---------- --------- -------
                           2003                         2002                 

  (Million Baht)           Domestic   Foreign   Total   Domestic   Foreign   Total

  Acquisition of                                                             
  properties                                                                 

  - Proved                 -          1,558     1,558   -          -         -

  - Unproved               -          -         -       -          (37)      (37)

  Exploration costs ⁽¹⁾    45         2,246     2,291   352        720       1,072

  Development costs        4,511      1,466     5,977   6,393      (43)      6,350

  Total                    4,556      5,270     9,826   6,745      640       7,385

  Costs incurred of equity            1,158     1,158              792       792
  Company⁽²⁾                                                                 

                                                                             
  ------------------------ ---------- --------- ------- ---------- --------- -------

(1) Exploration costs include transferring of exploration well costs to
    development well costs for future production.

(2) Represents PTTEP’s share of costs incurred of investment in Medco
    accounted for under equity method

19.4 Results of operation for producing activities

  Results of operations from oil and gas producing activities for the
  year 2003 and 2002 are shown in the following table.

  Production costs include lifting costs incurred to operate and
  maintain productive wells and related equipment. Exploration expenses
  consist of geological and geophysical costs, and dry hole costs.
  General administrative expenses are expenses directly related to oil
  and gas producing activities. DD&A expense relates to capitalized
  costs incurred in acquisition, exploration and development activities,
  transportation pipeline, including amortized decommissioning costs.
  Other income/expenses include pipeline transportation income and
  foreign exchange gains and losses. Income tax expenses are based on
  the tax effects arising from the operations. General corporate
  overhead and interest costs are excluded from the results of
  operations.

+------------------------------+---+-----+-----+-----+---+-----+-----+------+
|                              | 2 |     |     |     | 2 |     |     |      |
|                              | 0 |     |     |     | 0 |     |     |      |
|                              | 0 |     |     |     | 0 |     |     |      |
|                              | 3 |     |     |     | 2 |     |     |      |
|                              |   |     |     |     | ( |     |     |      |
|                              |   |     |     |     | R |     |     |      |
|                              |   |     |     |     | e |     |     |      |
|                              |   |     |     |     | s |     |     |      |
|                              |   |     |     |     | t |     |     |      |
|                              |   |     |     |     | a |     |     |      |
|                              |   |     |     |     | t |     |     |      |
|                              |   |     |     |     | e |     |     |      |
|                              |   |     |     |     | d |     |     |      |
|                              |   |     |     |     | ) |     |     |      |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
| (Million Baht)               |   | Do  | F   | To  |   | Do  | F   | T    |
|                              |   | mes | ore | tal |   | mes | ore | otal |
|                              |   | tic | ign |     |   | tic | ign |      |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
| Gross revenues :             |   |     |     |     |   |     |     |      |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
|  Total Sales                 |   | 27, | 6,  | 34, |   | 23, | 6,  | 29   |
|                              |   | 193 | 845 | 038 |   | 467 | 120 | ,587 |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
| Expenses :                   |   |     |     |     |   |     |     |      |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
| Production expenses          |   | 1,  | 547 | 2,  |   | 1,  | 799 | 2    |
|                              |   | 842 |     | 389 |   | 975 |     | ,774 |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
| Exploration expenses         |   | 56  | 2,  | 2,  |   | 105 | 45  | 150  |
|                              |   |     | 256 | 312 |   |     |     |      |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
|   General administrative     |   | 455 | 271 | 726 |   | 592 | 212 | 804  |
|   expenses                   |   |     |     |     |   |     |     |      |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
|   Petroleum royalties        |   | 3,  | 641 | 4,  |   | 2,  | 505 | 3    |
|                              |   | 380 |     | 201 |   | 919 |     | ,424 |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
| Depreciation, depletion,     |   | 4,  | 500 | 5,  |   | 4,  | 425 | 4    |
|                              |   | 702 |     | 202 |   | 135 |     | ,560 |
| and amortization             |   |     |     |     |   |     |     |      |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
| Other (income)/ expenses     |   | (   | (9  | (9  |   | 199 | (5  | (    |
|                              |   | 33) | 38) | 71) |   |     | 64) | 365) |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
| Total expenses               |   | 10, | 3,  | 13, |   | 9,  | 1,  | 11   |
|                              |   | 402 | 277 | 679 |   | 925 | 422 | ,347 |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
|   Results before income      |   | 16, | 3,  | 20, |   | 13, | 4,  | 18   |
|   taxes                      |   | 791 | 568 | 359 |   | 542 | 698 | ,240 |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
| Income tax expenses          |   | 6,  | 1,  | 8,  |   | 5,  | 694 | 6    |
|                              |   | 696 | 897 | 593 |   | 379 |     | ,073 |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
| Net results of operations    |   | 10, | 1,  | 11, |   | 8,  | 4,  | 12   |
|                              |   | 095 | 671 | 766 |   | 163 | 004 | ,167 |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+
| Results of operations of     |   |     | 480 | 480 |   |     | 530 | 530  |
| equity company⁽¹⁾            |   |     |     |     |   |     |     |      |
+------------------------------+---+-----+-----+-----+---+-----+-----+------+

  ⁽¹⁾Represents PTTEP’s share of results of operations of investment in
  Medco

19.5 Standardized Measure of Discounted Future Net Cash Flows Relating
to Proved Oil and Gas Reserves

  The standardized measure of discounted future net cash flows, related
  to the above proved oil and gas reserves, is computed by applying
  year-end prices of oil and gas (with consideration of price changes
  only to the extent provided by contractual arrangements) to the
  estimated future production of year-end proved oil and gas reserves
  remaining less estimated future expenditures (based on year-end costs)
  to be incurred in developing and production the proved reserves,
  discounted using a rate of 10% per year to reflect the estimated
  timing of the future cash flows. Future income taxes are calculated by
  applying the appropriate year-end statutory tax rates to the future
  pre tax net cash flows and reduced by applicable tax deductions or tax
  credits.

  Discounted future cash flow estimates like those shown below are not
  intended to represent estimates of the fair value of oil and gas
  properties. Estimates of fair value should also consider probable and
  possible which may become proved in the future, reserves, anticipated
  future oil and gas prices, interest rates, changes in development and
  production costs and risks associated with future production. Because
  of these and other considerations, any of fair value is necessarily
  subjective and imprecise.

+------------------------+------+------+------+------+-------+-------+
| (Million Baht)         | Dome |      | For  |      | Total |       |
|                        | stic |      | eign |      |       |       |
+------------------------+------+------+------+------+-------+-------+
|                        | 2003 | 2002 | 2003 | 2002 | 2003  | 2002  |
+------------------------+------+------+------+------+-------+-------+
| Future cash inflows    | 383  | 322  | 164  | 154  | 54    | 47    |
|                        | ,121 | ,681 | ,872 | ,506 | 7,993 | 7,187 |
+------------------------+------+------+------+------+-------+-------+
| Future production      | (50, | (51, | (21, | (21, | (71   | (73   |
| costs                  | 172) | 897) | 553) | 838) | ,725) | ,735) |
+------------------------+------+------+------+------+-------+-------+
| Fu                     | (92, | (80, | (6,  | (6,  | (99   | (86   |
| ture development costs | 504) | 159) | 696) | 435) | ,200) | ,594) |
+------------------------+------+------+------+------+-------+-------+
| Future income tax      | (81, | (63, | (49, | (46, | (130  | (109  |
| expenses               | 203) | 755) | 104) | 052) | ,307) | ,807) |
+------------------------+------+------+------+------+-------+-------+
| Future net cash flows  | 159  | 126  | 87   | 80   | 24    | 20    |
|                        | ,241 | ,870 | ,520 | ,181 | 6,761 | 7,051 |
+------------------------+------+------+------+------+-------+-------+
| 10% annual discount    | (78, | (62, | (51, | (48, | (130  | (110  |
|                        | 957) | 059) | 478) | 933) | ,435) | ,992) |
+------------------------+------+------+------+------+-------+-------+
| Standardized measure   |      |      |      |      |       |       |
| of                     |      |      |      |      |       |       |
|                        |      |      |      |      |       |       |
| discounted future net  |      |      |      |      |       |       |
| cash                   |      |      |      |      |       |       |
+------------------------+------+------+------+------+-------+-------+
| Flows (SMDCF)          | 80   | 64   | 36   | 31   | 11    | 9     |
|                        | ,283 | ,811 | ,043 | ,248 | 6,326 | 6,059 |
+------------------------+------+------+------+------+-------+-------+
| SMDCF of equity        |      |      | 4    | 4    | 4,038 | 4,911 |
| company⁽¹⁾             |      |      | ,038 | ,911 |       |       |
+------------------------+------+------+------+------+-------+-------+
| Total SMDCF            | 80   | 64   | 40   | 36   | 12    | 10    |
|                        | ,283 | ,811 | ,081 | ,159 | 0,364 | 0,970 |
+------------------------+------+------+------+------+-------+-------+

(1) Represents PTTEP’s share of discounted future net cash flows of
    investment in Medco.

Changes in Standardized Measure of Discounted Future Net Cash Flows
Relating to

Proved Oil and Gas Reserves

+--------------------------------------------+------------+------------+
| Million Baht                               | 2003       | 2002       |
+--------------------------------------------+------------+------------+
| Present value at beginning of year         | 96,059     | 90,608     |
+--------------------------------------------+------------+------------+
| Sales and transfers of oil and gas         | (27,251)   | (23,282)   |
| produced,                                  |            |            |
|                                            |            |            |
| net of production costs                    |            |            |
+--------------------------------------------+------------+------------+
| Development costs incurred during the      | 4,916      | 6,597      |
| period                                     |            |            |
+--------------------------------------------+------------+------------+
| Net changes in prices and production costs | 17,348     | 9,929      |
+--------------------------------------------+------------+------------+
| Net change in development costs            | 11,886     | (3,197)    |
+--------------------------------------------+------------+------------+
| Extensions, discoveries and improved       | 19,732     | 4,154      |
| recovery,                                  |            |            |
|                                            |            |            |
| less related costs                         |            |            |
+--------------------------------------------+------------+------------+
| Revisions of previous quantity estimates   | 22,769     | 12,333     |
+--------------------------------------------+------------+------------+
| Purchases / sales of petroleum in place    | 11,818     | -          |
+--------------------------------------------+------------+------------+
| Accretions of discount                     | (20,450)   | 7,815      |
+--------------------------------------------+------------+------------+
| Net change in income taxes                 | (20,500)   | (8,898)    |
+--------------------------------------------+------------+------------+
| Present value at the year end              | 116,326    | 96,059     |
+--------------------------------------------+------------+------------+

19.6 Other information

  Productive Oil and Gas Wells

  The number of productive wells at December 31, 2003 were as follows :

+-------------------------------------+---------+------+------+-------+
|                                     | Oil     |      | Gas  |       |
+-------------------------------------+---------+------+------+-------+
|                                     | Gross   | Net  | G    | Net   |
|                                     |         |      | ross |       |
+-------------------------------------+---------+------+------+-------+
| Thailand                            | 244     | 54   | 504  | 125   |
+-------------------------------------+---------+------+------+-------+
| Foreign                             |         |      |      |       |
+-------------------------------------+---------+------+------+-------+
| Southeast Asia                      | -       | -    | 18   | 4     |
+-------------------------------------+---------+------+------+-------+
| Total                               | 244     | 54   | 522  | 129   |
+-------------------------------------+---------+------+------+-------+

  Drilling in Progress

  The number of oil and gas wells in progress at December 31, 2003 were
  as follows:

  Exploratory

+--------------------------------------+-------+-----------+-----------+
|                                      |       | Gross     | Net       |
+--------------------------------------+-------+-----------+-----------+
| Thailand                             |       | -         | -         |
+--------------------------------------+-------+-----------+-----------+
| Foreign                              |       |           |           |
+--------------------------------------+-------+-----------+-----------+
| Southeast Asia                       |       | -         | -         |
+--------------------------------------+-------+-----------+-----------+
| Total                                |       | -         | -         |
+--------------------------------------+-------+-----------+-----------+

  Development

+--------------------------------------+-------+-----------+-----------+
| Thailand                             |       | 7         | 2         |
+--------------------------------------+-------+-----------+-----------+
| Foreign                              |       |           |           |
+--------------------------------------+-------+-----------+-----------+
| Southeast Asia                       |       | -         | -         |
+--------------------------------------+-------+-----------+-----------+
| Total                                |       | 7         | 2         |
+--------------------------------------+-------+-----------+-----------+

  Net Oil and Gas Wells Drilled Annually in 2003

  Exploratory

+--------------------------------------+-------+------------+----------+
|                                      |       | Net        | Net dry  |
|                                      |       | Productive |          |
|                                      |       | wells      | well     |
|                                      |       | drilled    | drilled  |
+--------------------------------------+-------+------------+----------+
| Thailand                             |       | -          | -        |
+--------------------------------------+-------+------------+----------+
| Foreign                              |       |            |          |
+--------------------------------------+-------+------------+----------+
| Southeast Asia                       |       | 0.2        | 2        |
+--------------------------------------+-------+------------+----------+
| Total                                |       | 0.2        | 2        |
+--------------------------------------+-------+------------+----------+

  Development

+--------------------------------------+-------+-----------+-----------+
| Thailand                             |       | 29        | 1         |
+--------------------------------------+-------+-----------+-----------+
| Foreign                              |       |           |           |
+--------------------------------------+-------+-----------+-----------+
| Southeast Asia                       |       | -         | -         |
+--------------------------------------+-------+-----------+-----------+
| Total                                |       | 29        | 1         |
+--------------------------------------+-------+-----------+-----------+

  Gross wells include the total number of wells in which the company has
  an interest. Net wells are the sum of the company’s fractional
  interests in gross wells

  ------------------------ -- ------- -- ------- -- ------- -- --------- -- --------
  20. Attachment 4 :                                                        
  Quarterly Information in                                                  
  2003 and 2002                                                             
  (unaudited) for the                                                       
  consolidated financial                                                    
  statement are as follow                                                   

                                                               (Unit :      
                                                               Million      
                                                               Baht)        

  Year 2003                   4TH Q      3RD Q      2ND Q      1ST Q        Total

  Revenues                                                                  

  Sales                       8,924      8,875      8,427      7,812        34,038

  Revenue from pipeline       354        298        228        209          1,089
  transportation                                                            

  Other revenues                                                            

  Gain on foreign exchange    50         469        241        110          870

  Interest income             45         44         54         59           202

  Other revenues              10         31         14         9            64

  Share of profit from        6          206        369        169          750
  investments accounted                                                     
  for under equity method                                                   

  Total revenues              9,389      9,923      9,333      8,368        37,013

  Expenses                                                                  

  Production expenses         616        589        637        548          2,390

  Exploration expenses        1,377      239        109        586          2,311

  General administrative      403        321        300        289          1,313
  expenses                                                                  

  Petroleum royalties         1,088      1,052      974        907          4,021

  Other expenses                                                            

  Depreciation, depletion     1,459      1,357      1,281      1,353        5,450
  and amortization                                                          

  Director's remuneration     13         2          2          2            19

  Other expenses              38         31         17         22           108

  Total expenses              4,994      3,591      3,320      3,707        15,612

  Income before interest      4,395      6,332      6,013      4,661        21,401
  and income taxes                                                          

  Interest expenses           342        360        367        342          1,411

  Income taxes                2,060      2,081      2,096      1,725        7,962

  Net income                  1,993      3,891      3,550      2,594        12,028

                                                                            

  Earnings per share                                                        
  (Baht)                                                                    

  Basic earnings per share    3.06       5.97       5.44       3.98         18.44

  Diluted earnings per        3.05       5.96       5.44       3.98         18.43
  share                                                                     

                                                                            

                                                                            

                                                                            

                                                               (Unit :      
                                                               Million      
                                                               Baht)        

  Year 2002                   4TH Q      3RD Q      2ND Q      1ST Q        Total

  Revenues                                                                  

  Sales                       7,695      8,258      7,227      6,407        29,587

  Revenue from pipeline       196        154        148        147          645
  transportation                                                            

  Other revenues                                                            

  Gain on foreign exchange    141        -          861        340          618*

  Interest income             58         42         46         63           209

  Other revenues              20         8          11         18           57

  Share of profit from        -          340        283        113          657*
  investments accounted                                                     
  for under equity method                                                   

  Total revenues              8,110      8,802      8,576      7,088        31,773

  Expenses                                                                  

  Production expenses         783        655        707        629          2,774

  Exploration expenses        60         41         35         13           149

  General administrative      362        319        317        272          1,270
  expenses                                                                  

  Petroleum royalties         889        960        835        740          3,424

  Other expenses                                                            

  Depreciation, depletion     1,243      1,273      1,228      1,041        4,785
  and amortization                                                          

  Director’s remuneration     9          1          2          3            15

  Loss on foreign exchange    -          724        -          -            -*

  Other expenses              371        43         6          71           491

  Share of loss from          79         -          -          -            -*
  investments accounted                                                     
  for under equity method                                                   

  Total expenses              3,796      4,016      3,130      2,769        12,908

  Income before interest      4,314      4,786      5,446      4,319        18,865
  and income taxes                                                          

  Interest expenses           351        347        344        373          1,415

  Income taxes                871        1,466      1,696      1,363        5,396

  Net income                  3,092      2,973      3,406      2,583        12,054

  Earnings per share                                                        
  (Baht)                                                                    

  Basic earnings per share    4.74       4.56       5.22       3.96         18.49

  Diluted earnings per        4.74       4.56       5.22       3.96         18.49
  share                                                                     

  * present net balance                                                     
  ------------------------ -- ------- -- ------- -- ------- -- --------- -- --------

  -----------------------------------------------------------------------
  21. Attachment 5: Audit Committee Report 2003

  -----------------------------------------------------------------------

The Board of Directors of PTT Exploration and Production Public Company
Limited (PTTEP) appointed the current Audit Committee on June 26, 2001.
The Audit Committee is composed of 3 Independent Directors with
knowledge, expertise and experience in finance and accounting, law, as
well as related technical practices, and is chaired by Mr.Vudhibhandhu
Vichairatana, with Mr. Chulasingh Vasantasingh and General Lertrat
Ratanavanich as members. No one on the Audit Committee is an executive,
staff member or advisor in PTTEP. The Audit Committee’s scope of work,
duties and responsibilities are in accordance with the Audit Committee
Charter B.E. 2542.

In 2003, all Audit Committee members performed their duties and
responsibilities of Corporate Governance according to the PTTEP’s Audit
Committee Charter by attending 5 Audit Committee meetings. There were a
total of 38 agenda items which can be summarized as follows:

(1) Reviewing the PTTEP 2003 financial report for accuracy and adequacy,
in which the External Auditor (The Office of the Auditor General or OAG)
attended every quarter or 4 times.

(2) Reviewing the performance of PTTEP to ensure compliance with the
securities and stock exchange laws, the Stock Exchange of Thailand’s
rules and regulations and other laws related to PTTEP’s business.

(3) Considering and/or supporting the disclosure of any connected
transactions or conflict of interest to ensure accuracy and
completeness. PTTEP has issued a quarterly Management Discussion and
Analysis Report (MD&A), which is useful for all investors in addition to
the annual one.

(4) Ensuring and reviewing PTTEP’s internal controls, including its
appropriate/efficient internal audit system. Reviewing the internal
audit report, its guidelines and evaluating all results, according to
the relevant procedures and general standards, including liaising with
the External Auditor (OAG).

(5) Considering, selecting and proposing the OAG as PTTEP’s external
auditor and considering the audit fees. The amount of the consolidated
audit fees in 2003 was the same as it was in 2002.

(6) Considering the important risks facing PTTEP and proposing solutions
to minimize those risks.

(7) Assessing the 2003 performance of the Manager, Internal Audit
Department.

(8) Approving the 2004 audit plans proposed by the Internal Audit
Department.

(9) Considering and screening the budget and the 2004 workforce for the
Internal Audit Department.

(10) The Chairman and another Audit Committee member participated in and
reported on the Audit Committee’s activities 2002 during the Annual
General Shareholders Meeting on 24 April 2003.

(11) Reviewing and proposing that the Board of Directors revise the
Audit Committee Charter B.E. 2542

(12) Supporting Good Corporate Governance implementation, i.e. in 2003
two Audit Committee members attended the Director Certificate Program
(DCP) at the Thai Institute of Directors (IOD).

(13) Considering the performance results of the Audit Committee for the
5^(th) year. In 2003 the results were rated at the best level or the
most appropriate level and the Board of Directors have already
acknowledged these assessment results.

The Audit Committee regularly submitted all Minutes of the meetings to
the Board of Directors.

In conclusion, the Audit Committee performed its assigned duties and
responsibilities related to Corporate Governance in 2003 with care,
knowledge and independence at its fullest ability, as well as providing
forthright opinions to all parties for the benefit of PTTEP,
shareholders and stakeholders in an appropriate manner.

Vudhibhandhu Vichairatana

(Mr. Vudhibhandhu Vichairatana)

Chairman of the Audit Committee

 February 19, 2004

  -----------------------------------------------------------------------
  21. Attachment 6: Table of Information of PTTEP and its Subsidiaries’
  Projects

  -----------------------------------------------------------------------

PTTEP Projects

+-----+-------------+-------------+---------------+-----------------+
|     | Product     |             |               |                 |
|     | ion Project |             |               |                 |
+-----+-------------+-------------+---------------+-----------------+
|     | S1 Project  | E5 Project  | Unoca         | Bongk           |
|     |             |             | l III Project | ot Project (Blo |
|     |             |             |               | ck B15,B16,B17) |
+-----+-------------+-------------+---------------+-----------------+
| Lo  | Sukhothai,  | Khon Khaen  | Gulf of       | Gulf of         |
| cat | P           | Province,   | Thailand,     | Thailand,       |
| ion | hitsanulok, | Thailand    | Offshore      | approximately   |
|     | and         |             | Surat Thani   | 180 kms.        |
|     | K           |             | Province      | offshore        |
|     | amphaengpet |             |               | Songkhla        |
|     | Province,   |             |               | Province.       |
|     | Thailand    |             |               |                 |
+-----+-------------+-------------+---------------+-----------------+
| Pet | Sirikit     | Nam Phong   | Funan,        | Bongkot         |
| rol | Main,       |             | Jakrawan,     |                 |
| eum | Sirikit     |             | Gomin, Surat, |                 |
| Fi  | East,       |             | Plamuk, Trat, |                 |
| eld | Sirikit     |             | Pakarang,     |                 |
|     | West, Pru   |             | Yala          |                 |
|     | Kratiam,    |             |               |                 |
|     | Pratu Tao,  |             |               |                 |
|     | Thap Raet,  |             |               |                 |
|     | Wat Taen,   |             |               |                 |
|     | Nong Tum    |             |               |                 |
+-----+-------------+-------------+---------------+-----------------+
| P   | 1985        | 1990        | 1990          | 1988            |
| art |             |             |               |                 |
| ici |             |             |               |                 |
| pat |             |             |               |                 |
| ion |             |             |               |                 |
+-----+-------------+-------------+---------------+-----------------+
| P   | 1983        | 1990        | 1992          | 1993            |
| rod |             |             |               |                 |
| uct |             |             |               |                 |
| ion |             |             |               |                 |
| St  |             |             |               |                 |
| art |             |             |               |                 |
| up  |             |             |               |                 |
+-----+-------------+-------------+---------------+-----------------+
| C   |   No. Date  |   No. Date  |   No. Date    |   No. Date      |
| onc |   Condition |   Condition |   Condition   |   Condition     |
| ess |             |             |               |                 |
| ion |             |             |               |                 |
+-----+-------------+-------------+---------------+-----------------+
|     | 1/2522/16   | 2/2522/17   | 1/2515/5 26   | 3/2515/7 8      |
|     | 21 October  | 29 August   | September     | March 1972      |
|     | 1985        | 1990        | 1990 Thailand | Thailand I      |
|     | Thailand I  | Thailand I  | I             |                 |
|     |             |             |               | 5/2515/9 10     |
|     | Su          | Su          | Supplementary | March 1972      |
|     | pplementary | pplementary | no. 8         | Thailand I      |
|     | no. 1       | no. 2       |               |                 |
|     |             |             | 2/2515/6 26   |                 |
|     |             |             | September     |                 |
|     |             |             | 1990 Thailand |                 |
|     |             |             | I             |                 |
|     |             |             |               |                 |
|     |             |             | Supplementary |                 |
|     |             |             | no. 5         |                 |
+-----+-------------+-------------+---------------+-----------------+
| Pa  |   Name      |   Name      |   Name        |   Name          |
| rtn |             |             |   Percentage  |   Percentage    |
| ers |  Percentage |  Percentage |               |                 |
|     |             |             | Unocal        | PTTEP. ^(/2)    |
|     |   PTTEP     |             | Thailand Ltd. | 44.4445         |
|     |   Siam      |  ExxonMobil | ^(/2) 71.25   |                 |
|     |   Limited   |             |               | TotalFinaElf    |
|     |   ^(/2)     | Exploration | Mitsui Oil    | Exploration &   |
|     |   75.00[1]  |   and       | Exploration   | Production      |
|     |             |             | 23.75         | 33.3333         |
|     |   PTTEP     |             |               |                 |
|     |   In        |  Production | PTTEP 5.00    |   Thailand      |
|     | ternational |   Khorat    |               |                 |
|     |   Limited   |   Inc.      |   Total       | Lippon Star     |
|     |   25.00     |             |   100.00      | Management      |
|     |             | (EMEPKI)[2] |               | 2.2222          |
|     |   Total     |   80.00     |               |                 |
|     |   100.00    |             |               | British Gas     |
|     |             |   PTTEP     |               | Thailand        |
|     |             |   20.00     |               | 20.0000         |
|     |             |             |               |                 |
|     |             |   Total     |               |   Total         |
|     |             |   100.00    |               |   100.0000      |
+-----+-------------+-------------+---------------+-----------------+
| T   |   Crude     | Natural Gas | Natural Gas   | Natural Gas and |
| ype |   Oil,      |             | and           | Condensate      |
| of  |   Natural   |             | Condensate    |                 |
| Pet |   Gas, LPG  |             |               |                 |
| rol |             |             |               |                 |
| eum |             |             |               |                 |
+-----+-------------+-------------+---------------+-----------------+

PTTEP Projects (cont’n)

+------------+---------------------------+----------------------------+
|            | Production Projects       | Exploration Projects       |
+------------+---------------------------+----------------------------+
|            | Pailin (B 12/27)          | Arthis Projiect (B 14A,    |
|            |                           | B15A, B16A)                |
+------------+---------------------------+----------------------------+
| Location   | In the Gulf of Thailand   | Gulf of Thailand           |
|            | offshore of               |                            |
|            | Nakornsrithammaraj        |                            |
|            | Province, north-west of   |                            |
|            | the Bongkot Project       |                            |
+------------+---------------------------+----------------------------+
| Petroleum  | Pailin, Nil, Morakot,     | -                          |
| Field      | Peitay, Tubtim            |                            |
+------------+---------------------------+----------------------------+
| Par        | 1993                      | -                          |
| ticipation |                           |                            |
| Year       |                           |                            |
+------------+---------------------------+----------------------------+
| Production | Q 3 of Year 1999          | 2007                       |
| Start up   |                           |                            |
+------------+---------------------------+----------------------------+
| Concession |   No. Date Condition      |   No. Date Condition       |
+------------+---------------------------+----------------------------+
|            | 1/2529/33 January 15,     | 3/2515/7 8 March 1972      |
|            | 1986 Thailand I           | Thailand I                 |
|            |                           |                            |
|            |                           | 5/2515/9 10 March 1972     |
|            |                           | Thailand I                 |
+------------+---------------------------+----------------------------+
| Partners   |   Name Percentage         |   Name Percentage          |
|            |                           |                            |
|            |   PTTEP 45.00             |   PTTEP. ^(/2) 80.00       |
|            |                           |                            |
|            |   Unocal Thailand Ltd.    |   Unocal Thailand Ltd.     |
|            |   ^(/)[3]² 35.00          |   16.00                    |
|            |                           |                            |
|            |   Amerada Hess            |   Moeco Thailand Company   |
|            |   International           |   Limited 4.00             |
|            |   Exploration 15.00       |                            |
|            |                           |   Total 100.00             |
|            |   Moeco Thaioil           |                            |
|            |   Development 5.00        |                            |
|            |                           |                            |
|            |   Total 100.00            |                            |
+------------+---------------------------+----------------------------+
| Type of    | Natural Gas and           | Expected to be Natural Gas |
| Petroleum  | Condensate                | and Crude Oil              |
+------------+---------------------------+----------------------------+

PTTEP Projects

+---------+-----------------+-------------------+---------------------+
|         | Production      | Production        | Production Project  |
|         | Project         | Project           |                     |
+---------+-----------------+-------------------+---------------------+
|         | PTTEP 1 Project | Yadana Project    | Yetagun Project     |
|         |                 | (Block M5 M6)     |                     |
+---------+-----------------+-------------------+---------------------+
| L       | City District   | Gulf of Matabun   | South Eastern of    |
| ocation | Kamphaengsang   | Myanmar           | Yadana Project , in |
|         | Narkorn Prothom |                   | the Gulf of Mataban |
|         | Province and    |                   |                     |
|         | City District   |                   |                     |
|         | of Suphanburi   |                   |                     |
|         | Province        |                   |                     |
+---------+-----------------+-------------------+---------------------+
| Pe      | Kamphaengsang,  | Yadana Badamyasen | เยตากุน              |
| troleum | U-Thong and     |                   |                     |
| Field   | Sangrajai       |                   |                     |
+---------+-----------------+-------------------+---------------------+
| Partic  | 1993            | 1995              | 1997                |
| ipation |                 |                   |                     |
| Year    |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
| Pro     | 1991            | 1998              | 2000                |
| duction |                 |                   |                     |
| Start   |                 |                   |                     |
| up      |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
| Pe      |   No. Date      |   No. Date        |   No. Date          |
| troleum |   Condition     |   Condition       |   Condition         |
| Field   |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
|         | 2/2528/27       |   - - -           |   - - -             |
|         | February 5,     |                   |                     |
|         | 1985 Thailand   |                   |                     |
|         | III             |                   |                     |
+---------+-----------------+-------------------+---------------------+
| Pro     |                 |                   |                     |
| duction |                 |                   |                     |
| Sharing |                 |                   |                     |
| Ag      |                 |                   |                     |
| reement |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
|   :     | -               | July 9, 1992      | September 29,1992   |
|   Date  |                 |                   | (Block M12)         |
|   of    |                 |                   |                     |
|   Ag    |                 |                   | May 3, 1990 (Block  |
| reement |                 |                   | M 13 และBlock M14)  |
+---------+-----------------+-------------------+---------------------+
|   :     | -               | 20 years or       | -                   |
|         |                 | expiration of gas |                     |
|  Period |                 | Sales/Purchase    |                     |
|   of    |                 | Agreement or 30   |                     |
|   Ag    |                 | years from 1      |                     |
| reement |                 | August 1998       |                     |
+---------+-----------------+-------------------+---------------------+
|   :     | -               | -                 | 3 years from date   |
|         |                 |                   | of Sales/Purchase   |
|  Period |                 |                   | Agreement with      |
|   of    |                 |                   | allowance of 2      |
|   Expl  |                 |                   | extension periods   |
| oration |                 |                   | of one year each.   |
+---------+-----------------+-------------------+---------------------+
|   :     | -               | -                 | 30 years as         |
|         |                 |                   | according to the    |
|  Period |                 |                   | Sales/Purchase      |
|   of    |                 |                   | Agreement           |
|   Pro   |                 |                   |                     |
| duction |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
| P       |   Name          |   Name Percentage |   Name Percentage   |
| artners |   Percentage    |                   |                     |
|         |                 |   Total Myanmar   | Petronas Carigali   |
|         |                 |   Exploration and | Myanmar Limited     |
|         |  PTTEPI^(/)[4]² |   Production      | 30.00140            |
|         |   100.00        |   Co.Ltd.^(/2)    |                     |
|         |                 |   31.24           |   Premier Petroleum |
|         |                 |                   |   Myanmar Limited   |
|         |                 |   Unocal Myanmar  |   ^(/2) 10.90878    |
|         |                 |   Offshore Co.,   |                     |
|         |                 |   Ltd. 28.26      |   MOGE 20.45410     |
|         |                 |                   |                     |
|         |                 |   PTTEPI 25.50    |   Nippon Oil        |
|         |                 |                   |   Exploration       |
|         |                 |   MOGE 15.00      |   (Myanmar)         |
|         |                 |                   |   19.31780          |
|         |                 |   Total 100.00    |                     |
|         |                 |                   |   PTTEPI 19.31780   |
|         |                 |                   |                     |
|         |                 |                   |   Total 100.0000    |
+---------+-----------------+-------------------+---------------------+
| Pro     | Crude Oil       | Natural Gas       | Natural Gas and     |
| duction |                 |                   | Condensate          |
+---------+-----------------+-------------------+---------------------+

PTTEPI Projects

+---------+-----------------+-------------------+---------------------+
|         | Exploration     |                   |                     |
|         | Projects        |                   |                     |
+---------+-----------------+-------------------+---------------------+
|         | Project L 22/43 | Project G 4/43    | Project G 9/43      |
+---------+-----------------+-------------------+---------------------+
| L       | Pisanuluk       | Gulf of Thailand, | Gulf of Thailand,   |
| ocation | Province and    | offshore of       | Overlapping Area    |
|         | Pichit Province | Prachaubkirikan   | between Thailand    |
|         |                 | Province          | and Cambodia        |
+---------+-----------------+-------------------+---------------------+
| Pe      |                 | -                 | -                   |
| troleum |                 |                   |                     |
| Field   |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
| Partic  | 2003            | -                 | -                   |
| ipation |                 |                   |                     |
| Year    |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
| Pro     |                 | -                 | -                   |
| duction |                 |                   |                     |
| Year    |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
| Con     |   No. Date      |   No. Date        |   No. Date          |
| cession |   Condition     |   Condition       |   Condition         |
+---------+-----------------+-------------------+---------------------+
|         | 2/2546 July     | 4/2546/61 July    | 8/2546/65 July      |
|         | 17,2003         | 17, 2003 Thailand | 17,2003             |
|         | Thailand III    | III               |                     |
+---------+-----------------+-------------------+---------------------+
|   :     | - 2 Phases 3    | - 2 Phases 3      | - On negotiation    |
|   Expl  | years/phase     | years/phase       | process as it is an |
| oration |                 |                   | overlapping area    |
|         |                 |                   | between Thailand    |
|  Period |                 |                   | and Cambodia        |
+---------+-----------------+-------------------+---------------------+
|   :     | - 20 Years      | - 20 Years after  | -                   |
|   Pro   | after the final | the final date of |                     |
| duction | date of the     | the petroleum     |                     |
|         | petroleum       | exploration       |                     |
|  Period | exploration     | phase.            |                     |
|         | phase.          |                   |                     |
+---------+-----------------+-------------------+---------------------+
| P       |   Name          |   Name Percentage |   Name Percentage   |
| artners |   Percentage    |                   |                     |
|         |                 |   Chevron         |   PTTEPI^(/)[5]².   |
|         | PTTEPI 100.00   |   Offshore        |   100.00            |
|         | ^(/1)           |   (Thailand)      |                     |
|         |                 |   Limited ^(/2)   |   Total 100.00      |
|         |   Total 100.00  |   85.00           |                     |
|         |                 |                   |                     |
|         |                 |   PTTEPI 15.00    |                     |
|         |                 |                   |                     |
|         |                 |   Total 100.00    |                     |
+---------+-----------------+-------------------+---------------------+
| P       | Crude Oil       | Crude Oil,        | -                   |
| roducts |                 | Natural Gas and   |                     |
|         |                 | Condensate        |                     |
+---------+-----------------+-------------------+---------------------+

PTTEPI Projects

+---------+-----------------+-------------------+---------------------+
|         | Exploration     |                   |                     |
|         | Projects        |                   |                     |
+---------+-----------------+-------------------+---------------------+
|         | Project M7& M9  | Project E 5 North |                     |
+---------+-----------------+-------------------+---------------------+
| L       | Gulf of Mataban | Udornthani        |                     |
| ocation | near the Yadana | Province          |                     |
|         | Field           |                   |                     |
+---------+-----------------+-------------------+---------------------+
| Pe      | -               | Puhom             |                     |
| troleum |                 |                   |                     |
| Field   |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
| Partic  | -               | 1990              |                     |
| ipation |                 |                   |                     |
| Year    |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
| Pro     | -               | -                 |                     |
| duction |                 |                   |                     |
| Year    |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
| Con     |   No. Date      |   No. Date        |                     |
| cession |   Condition     |   Condition       |                     |
+---------+-----------------+-------------------+---------------------+
|         |   - - -         | 1/2524/19         |                     |
|         |                 | November 6, 1997  |                     |
|         |                 | Thailand I        |                     |
|         |                 |                   |                     |
|         |                 | Supplementary     |                     |
|         |                 | No.1              |                     |
+---------+-----------------+-------------------+---------------------+
| Pro     |                 |                   |                     |
| duction |                 |                   |                     |
| Sharing |                 |                   |                     |
| Ag      |                 |                   |                     |
| reement |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
|   :     | - November 6,   | -                 |                     |
|   Date  | 2003            |                   |                     |
|   of    |                 |                   |                     |
|   Ag    |                 |                   |                     |
| reement |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
|   :     | - Data Study    | -                 |                     |
|         | Period of 1     |                   |                     |
|  Period | year            |                   |                     |
|   of    |                 |                   |                     |
|   Ag    |                 |                   |                     |
| reement |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+
|   :     | - 3 years after | -                 |                     |
|         | the Data Study  |                   |                     |
|  Period | Period with     |                   |                     |
|   of    | allowance of 2  |                   |                     |
|   Expl  | extension       |                   |                     |
| oration | periods of one  |                   |                     |
|         | year each.      |                   |                     |
+---------+-----------------+-------------------+---------------------+
|   :     | - 20 years      | -                 |                     |
|         | after the final |                   |                     |
|  Period | day of the      |                   |                     |
|   of    | development or  |                   |                     |
|   Pro   | production or   |                   |                     |
| duction | according to    |                   |                     |
|         | the petroleum   |                   |                     |
|         | sales/purchase  |                   |                     |
|         | agreement.      |                   |                     |
+---------+-----------------+-------------------+---------------------+
| P       |   Name          |   Name Percentage |                     |
| artners |   Percentage    |                   |                     |
|         |                 |   Amerada Hess    |                     |
|         |   PTTEPI^(/2)   |   International   |                     |
|         |   100.00        |   Exploration     |                     |
|         |                 |   Company 35.00   |                     |
|         |   Total 100.00  |                   |                     |
|         |                 |   Abigo Limited   |                     |
|         |                 |   35.00           |                     |
|         |                 |                   |                     |
|         |                 |   EssoMobil       |                     |
|         |                 |   Exploration and |                     |
|         |                 |   Production      |                     |
|         |                 |   Khorat          |                     |
|         |                 |   Inc.Limited     |                     |
|         |                 |   ^(/2) 10.00     |                     |
|         |                 |                   |                     |
|         |                 |   PTTEPI 20.00    |                     |
|         |                 |                   |                     |
|         |                 |   Total 100.00    |                     |
+---------+-----------------+-------------------+---------------------+
| P       |                 |                   |                     |
| roducts |                 |                   |                     |
+---------+-----------------+-------------------+---------------------+

^(/2)The operator of the Project

PTTEPI Projects (cont’n) & PTTEPO Projects

+----------+--------------+-------------+--------------+-------------+
|          | Production   | Exploration |              |             |
|          | Projects     | Projects    |              |             |
|          |              | with        |              |             |
|          |              | Jo          |              |             |
|          |              | in-Invested |              |             |
|          |              | Agreement   |              |             |
+----------+--------------+-------------+--------------+-------------+
|          |              | PTTEPI      | PTTEPO       |             |
+----------+--------------+-------------+--------------+-------------+
|          | JDA Project  | Bongkot     | Project      | Project     |
|          | (Block B 17  | Project     | Block B and  | Block 44    |
|          | และ C 19)    | (Block B    | Block 48/95  |             |
|          |              | 13/38)      |              |             |
+----------+--------------+-------------+--------------+-------------+
| Location | South of the | South of    | In the Gulf  | Oman        |
|          | Gulf of      | Bongkot     | of Thailand, |             |
|          | Thailand     |             | to the west  |             |
|          |              |             | of Vietnam   |             |
+----------+--------------+-------------+--------------+-------------+
| P        | South Muda   | Bongkot     | Kim Long     |             |
| etroleum | Tapee Jengka |             | Argul        |             |
| Field    | Amrit Mari   |             |              |             |
|          | West Jengka  |             |              |             |
|          | East Jengka  |             |              |             |
|          | South Jengka |             |              |             |
+----------+--------------+-------------+--------------+-------------+
| Parti    | 1994         | -           | 2000         | 2002        |
| cipation |              |             |              |             |
| Year     |              |             |              |             |
+----------+--------------+-------------+--------------+-------------+
| Pr       | -            | 2007        |              |             |
| oduction |              |             |              |             |
| Year     |              |             |              |             |
+----------+--------------+-------------+--------------+-------------+
| Co       |   No. Date   |   No. Date  |   No. Date   |   No. Date  |
| ncession |   Condition  |   Condition |   Condition  |   Condition |
+----------+--------------+-------------+--------------+-------------+
|          |   - - -      | 2/2539/49   |   - - -      |   - - -     |
|          |              | June 27,    |              |             |
|          |              | 1996        |              |             |
|          |              | Thailand    |              |             |
|          |              | III         |              |             |
+----------+--------------+-------------+--------------+-------------+
| Pr       |              |             |              |             |
| oduction |              |             |              |             |
| Sharing  |              |             |              |             |
| A        |              |             |              |             |
| greement |              |             |              |             |
+----------+--------------+-------------+--------------+-------------+
|   : Date | April 21,    | -           | August 8,    | -           |
|   of     | 1994         |             | 2000         |             |
|   A      |              |             |              |             |
| greement |              |             |              |             |
+----------+--------------+-------------+--------------+-------------+
|   :      | 35 years     | -           | -            | -           |
|   Period | from the     |             |              |             |
|   of     | date of      |             |              |             |
|   A      | Agreement    |             |              |             |
| greement |              |             |              |             |
+----------+--------------+-------------+--------------+-------------+
| Partners |   ชื่อ ร้อยละ   |   ชื่อ ร้อยละ  |   ชื่อ ร้อยละ   |   ชื่อ ร้อยละ  |
|          |              |             |              |             |
|          |   PTTEPI     |   PTTEPI    | Unocal       | PTTEP       |
|          |   50.00      |   ^(/)[6]²  | Vietnam      |  Middle Eas |
|          |              |   44.4445   | Exploration  | t Limited ^ |
|          |   Petronas   |             | Limited      | (/2) 100.00 |
|          |   Carligali  |   T         | ^(/2) 42.38  |             |
|          |   (JDA)      | otalFinaElf |              |             |
|          |   50.00      |             | Moeco        |             |
|          |              | Exploration | Vietnam      |             |
|          |   Total      |   and       | Petroleum    |             |
|          |   100.00     |             | Limited      |             |
|          |              |             | 25.62        |             |
|          | Remark:      |  Production |              |             |
|          | Carligari    |   Thailand  | Petroleum    |             |
|          | PTTEP        |   33.3333   | Vietnam      |             |
|          | I            |             | Exploration  |             |
|          | nternational |   Thai      | 23.50        |             |
|          | Operating    |   Energy    |              |             |
|          | Company was  |   Limited   | and          |             |
|          | established  |   22.2222   | Production   |             |
|          | to be the    |             | Limited      |             |
|          | jo           |   รวม       |              |             |
|          | int-operator |   100.0000  | PTTEP Kim    |             |
|          | of JDA       |             | Long Vietnam |             |
|          | Project with |             | Limited 8.50 |             |
|          | PTTEP and    |             |              |             |
|          | Petronas     |             | Total 100.00 |             |
|          | Carligali    |             |              |             |
|          | invested by  |             |              |             |
|          | 50:50.       |             |              |             |
+----------+--------------+-------------+--------------+-------------+
| Products | Natural Gas  | Natural Gas | Natural Gas  | Crude Oil   |
|          | and          | and         |              | and Natural |
|          | Condensate   | Condensate  |              | Gas         |
+----------+--------------+-------------+--------------+-------------+

PTTEPO Projects

+---------+----------------+----------------+-------------------------+
|         | Exploration    |                |                         |
|         | Project with   |                |                         |
|         | Joint-Invested |                |                         |
|         | Agreement      |                |                         |
|         | (cont’n)       |                |                         |
+---------+----------------+----------------+-------------------------+
|         | Project Block  | Project Block  | Project Block 16/1      |
|         | 52/97          | 9/2            |                         |
+---------+----------------+----------------+-------------------------+
| L       | In the Gulf of | Offshore to    | Offshore to the South   |
| ocation | Thailand, to   | the South East | East of Vang Tau of     |
|         | the west of    | of Vang Tau of | Vietnam                 |
|         | Vietnam        | Vietnam        |                         |
+---------+----------------+----------------+-------------------------+
| Pe      | Carvoy Arguy   | -              | -                       |
| troleum |                |                |                         |
| Field   |                |                |                         |
+---------+----------------+----------------+-------------------------+
| Partic  | 2000           | 2002           | 20002                   |
| ipation |                |                |                         |
| Year    |                |                |                         |
+---------+----------------+----------------+-------------------------+
| Pro     | -              | -              | -                       |
| duction |                |                |                         |
| Year    |                |                |                         |
+---------+----------------+----------------+-------------------------+
| Con     |   No. Date     |   No. Date     |   No. Date Condition    |
| cession |   Condition    |   Condition    |                         |
+---------+----------------+----------------+-------------------------+
|         |   - - -        |   - - -        |   - - -                 |
+---------+----------------+----------------+-------------------------+
| Pro     |                |                |                         |
| duction |                |                |                         |
| Sharing |                |                |                         |
| Ag      |                |                |                         |
| reement |                |                |                         |
+---------+----------------+----------------+-------------------------+
|   :     | October 19,    | December       | December 8, 1999        |
|   Date  | 1999           | 21,2000        |                         |
|   of    |                |                |                         |
|   Ag    |                |                |                         |
| reement |                |                |                         |
+---------+----------------+----------------+-------------------------+
|   :     |                |                |                         |
|         |                |                |                         |
|  Period |                |                |                         |
|   of    |                |                |                         |
|   Ag    |                |                |                         |
| reement |                |                |                         |
+---------+----------------+----------------+-------------------------+
| P       |   Name         |   Name         |   Name Percentage       |
| artners |   Percentage   |   Percentage   |                         |
|         |                |                | Petroleum Vietnam       |
|         | Unocal         | Soco Vietnam   | Exploration and         |
|         | Southwest      | Limited 25.00  |                         |
|         | Vietnam        |                | Production Limited      |
|         | ^(/)[7]²       | Petroleum      | 41.00                   |
|         |                | Vietnam        |                         |
|         | Exploration    | Exploration    | PTTEP Hong Long Vietnam |
|         | and Production | and            | Limited 28.50           |
|         | Limited 43.40  |                |                         |
|         | Moeco          | Production     | Soco Vietnam Limited    |
|         | Southwest      | Limited 50.00  | 28.50                   |
|         | Vietnam        |                |                         |
|         | Petroleum Ltd. | PTTEP Hong Vu  | OPECO Vietnam 2.00      |
|         | 19.60          | 25.00          |                         |
|         |                |                |   Total 100.00          |
|         | Petroleum      |   Total 100.00 |                         |
|         | Vietnam        |                | Remark: Hong Long       |
|         | Exploration    | Remark: Hong   | Operating Limited was   |
|         | and            | Vu Operating   | established to be the   |
|         |                | Limited was    | joint- operator of      |
|         | Production     | established to | Project Block 16/1.     |
|         | Limited 30.00  | be the joint-  |                         |
|         |                | operator of    |                         |
|         | PTTEP          | Project Block  |                         |
|         | Southwest      | 9/2            |                         |
|         | Vietnam        |                |                         |
|         | Limited 7.00   |                |                         |
|         |                |                |                         |
|         |   Total 100.00 |                |                         |
+---------+----------------+----------------+-------------------------+
| P       | Natural Gas    | Expected to be | Expected to be Crude    |
| roducts |                | Crude Oil      | Oil                     |
+---------+----------------+----------------+-------------------------+

[1] PTTEP signed the Share Purchasing Agreement with Thai Shell
Exploration and Production Company Limited by buying all the shares on
December 30, 2003 which affected PTTEP to own the total shares from
Jan.1, 2004 onwards.

[2] The Operator of the Project

[3] The Operator of the Project

[4] The operator of the Projects

[5] ^(/1) PTTEP signed the Shares Purchase Agreement with Thai Shell
Exploration and Production Company Limited to purchase all shares on
December 2003 , which resulted PTTEPI to increase an extra of 65%
shares, therefore hold a total of 100 % shares on January 1,2004 onwards
and the ownership will be fully effective when the Government give
approval.

^(/2) The operator of the Project

[6] The operator of the Project

[7] The operator of the Project