CONFORMED COPY

QUARTERLY REPORTUNDER SECTION 13 OR 15(d)

OF THE SECURITIESEXCHANGE ACT OF 1934

UNITED STATES

SECURITIES ANDEXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

[X] Quarterly ReportPursuant to Section 13 or 15(d) of

the SecuritiesExchange Act of 1934

For the period ended March 31, 2005

or

[ ] TransitionReport Pursuant to Section 13 of 15(d) of

the SecuritiesExchange Act of  1934

For the transitionperiod from         to

Commission filenumber 000-50616

I.R.S. EmployerIdentification Number 55-0825013

PDC 2003-B LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

103 East Main  Street

Bridgeport, WV 26330

Telephone: (304)842-6256

Indicate by check mark whether the registrant (1) hasfiled all reports required to be filed by Section 13 or 15(d) of the SecuritiesExchange Act of 1934 during the preceding 12 months (or for such shorter periodthat the registrant was required to file such reports), and (2) has beensubject to such filing requirements for the past 90 days.  Yes     XX       No        

Indicate by check mark whether the registrant is anaccelerated filer (as definition in Rule 12b-2 of the Exchange Act.) Yes            No    XX    

PDC 2003-B LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

INDEX

| PART I - FINANCIAL INFORMATION  | Page No.                                                                                                       |
|---------------------------------|----------------------------------------------------------------------------------------------------------------|
|                                 |                                                                                                                |  |  |
| Item 1.1.                       | Financial  Statements                                                                                          |  |
|                                 | Balance Sheets - March 31, 2005 (unaudited) and December 31, 2004                                              |  1 |
|                                 |                                                                                                                |  |  |
|                                 | Statements of Operations - Three Months Ended March 31, 2005 and 2004 (unaudited)                              |  2 |
|                                 | Statement of Partners' Equity and Comprehensive Income  (Loss) - Three Months Ended March 31, 2005 (unaudited) |  3 |
|                                 |                                                                                                                |  |  |
|                                 | Statements of Cash Flows- Three Months Ended March 31, 2005 and 2004 (unaudited)                               |  4 |
|                                 |                                                                                                                |  |  |
|                                 |                                                                                                                | Notes to Financial Statements |  5 |
|                                 |                                                                                                                |  |  |
| Item 2.                         | Management's Discussion and Analysis of Financial 

Condition and Results of Operations                        |  6 |
|                                 |                                                                                                                |  |  |
| Item 3.                         | Quantitative and Qualitative Disclosure About Market  Rate Risk                                                |  9 |
|                                 |                                                                                                                |  |
| Item 4.                         | Controls and Procedures                                                                                        | 10 |
|                                 |                                                                                                                |  |  |
| PART II  OTHER INFORMATION |                                                                                                                |
|                                 |                                                                                                                |  |  |
| Item 1.                         | Legal Proceedings                                                                                              | 11 |
|                                 |                                                                                                                |  |  |
| Item 6.                         | Exhibits                                                                                                       | 11 |
|                                 |                                                                                                                |  |  |
|                                 |                                                                                                                |  |  |
|                                 |                                                                                                                |  |  |  |

PDC 2003-B LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

Balance Sheets

March 31, 2005 and December 31, 2004

|                                                                                        |                                                            |                                                                                         |
|----------------------------------------------------------------------------------------|------------------------------------------------------------|-----------------------------------------------------------------------------------------|
|       Assets                                             |                                                            |                                                                                         |
|                                                                                        | 2005                                                       | 2004                                                                                    |
|                                                                                        | (Unaudited)                                                |                                                                                         |
|                                                                                        |                                                            |                                                                                         |
| Current assets:                                                                        |                                                            |                                                                                         |
|  Cash                                                                             | $        20,722              | 20,399                                                                                  |
|  Accounts receivable - oil and gas revenues                                       |   1,006,680                                      |    1,244,771                                                             |
|  Due from managing general partner                                                |           777 |             -     |
|           Total  current assets      | 1,028,179                                                  | 1,265,170                                                                               |
|                                                                                        |                                                            |                                                                                         |
| Oil and gas properties, successful efforts method                                      | 18,874,640                                                 | 18,874,640                                                                              |
|      Less accumulated  depreciation, depletion                |                                                            |                                                                                         |
|         and amortization                            |   3,517,565                                           |      3,122,776                                                      |
|                                                                                        | 15,357,075                                                 | 15,751,864                                                                              |
|                                                                                        |                                                            |                                                                                         |
|                                                                                        | $16,385,254                                                |  17,017,034                                                                        |
|                                                                                        |                                                            |                                                                                         |
|      Liabilities and  Partners' Equity                        |                                                            |                                                                                         |
|                                                                                        |                                                            |                                                                                         |
| Current liabilities:                                                                   |                                                            |                                                                                         |
|  Accrued expenses                                                                 | $     100,476                          | 196,678                                                                                 |
|           Total  current liabilities | 100,476                                                    | 196,678                                                                                 |
|                                                                                        |                                                            |                                                                                         |
| Asset retirement obligations                                                           | 11,984                                                     | 11,807                                                                                  |
|                                                                                        |                                                            |                                                                                         |
| Partners' Equity                                                                       | 16,272,794                                                 |  16,808,549                                                                        |
|                                                                                        |                                                            |                                                                                         |
|                                                                                        |                                                            |                                                                                         |
|                                                                                        | $16,385,254                                                |  17,017,034                                                                        |

See accompanying notes to financial statements.

-1-

PDC 2003-B LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

Statements ofOperations

Three Months ended March 31, 2005 and 2004

(Unaudited)

                                                                                                                                                           

|                                                 |      2005                                            |      2004                                         |
|-------------------------------------------------|--------------------------------------------------------------------------|-----------------------------------------------------------------------|
| Revenues:                                       |                                                                          |                                                                       |
| Sales of oil and gas                            | $1,093,254                                                               | 2,146,688                                                             |
| Interest income                                 |             1,097 |             58 |
|                                                 | 1,094,351                                                                | 2,146,746                                                             |
| Expenses:                                       |                                                                          |                                                                       |
| Lifting Cost                                    | 186,607                                                                  | 239,117                                                               |
| Direct administrative                           | 177                                                                      | -                                                 |
| Depreciation, depletion,  and amortization | 394,789

581,573                                                         | 842,304

1,081,421                                                    |
| Net income                                      | $ 512,778                                                                | 1,065,325                                                             |
| Net income per limited partner unit             | $        473                          |         983                        |
|                                                 |                                                                          |                                                                       |

See accompanying notes to financial statements.

-2-

PDC 2003-B LIMITEDPARTNERSHIP

(A West Virginia LimitedPartnership)

Statement ofPartners' Equity and Comprehensive Income (Loss)

Three months ended March 31, 2005

(Unaudited)

|                                                                                                           | Limited and

Additional 

General

Partners                                                              |  Managing

General Partner                                                                          | Accumulated

Other

Comprehensive

Income (loss)                            |                                         Total |
|-----------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                                                                                           |                                                                                                          |                                                                                                          |                                                                             |                                                                                                                                                                                                                                             |
| Balance December 31, 2004                                                                                 | $13,530,594                                                                                         | 3,382,650                                                                                           | (104,695)                                                         | 16,808,549                                                                                                                                                                                                                             |
|                                                                                                           |                                                                                                          |                                                                                                          |                                                                             |                                                                                                                                                                                                                                             |
| Distributions to partners                                                                                 | (857,165)                                                                                                | (214,291)                                                                                                | -                                                       | (1,071,456)                                                                                                                                                                                                                                 |
|                                                                                                           |                                                                                                          |                                                                                                          |                                                                             |                                                                                                                                                                                                                                             |
| Comprehensive income:                                                                                     |                                                                                                          |                                                                                                          |                                                                             |                                                                                                                                                                                                                                             |
| Net income                                                                                                |  410,222                                                                                       | 102,556                                                                                             | -                                                       |  512,778                                                                                                                                                                                                                          |
| Change in fair value of 

  outstanding hedging positions                                       |                                                                                                     |                                                                                                     |  16,389                                                                |                                                                                                                                                                                                                                        |
| Less reclassification adjustments   for  settled contracts included in 

  net income |                                                                                                     |                                                                                                     |  

     6,534                                                |                                                                                                                                                                                                                                        |
| Other comprehensive income                                                                                |                                                                                                          |                                                                                                          | 22,923                                                                      |                 22,923                                                                                                                                           |
| Comprehensive income                                                                                      |                     |                     |                 |   535,701                                                                                                                                                                                                                         |
|                                                                                                           |                                                                                                          |                                                                                                          |                                                                             |                                                                                                                                                                                                                                             |
| Balance March 31, 2005                                                                                    | $ 13,083,651                                                                                        |  3,270,915                                                                                     |    (81,772)                                                  |  16,272,794                                                                                                                                                                                                                            |
|                                                                                                           |                                                                                                          |                                                                                                          |                                                                             |                                                                                                                                                                                                                                             |

See accompanyingnotes to financial statements.

-3-

PDC 2003-B LIMITED PARTNERSHIP

(A West VirginiaLimited Partnership)

Statements of CashFlows

Three Months ended March 31, 2005 and 2004

(Unaudited)

|                                                                                                                                     |         2005 |         2004                                                    |
|-------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------|----------------------------------------------------------------------------------------------------|
| Cash flows from operating activities:                                                                                               |                                                 |                                                                                                    |
| Net income                                                                                                                          | $512,778                                   | 1,065,325                                                                                     |
| Adjustments to reconcile net income to net cash                                                                                     |                                                 |                                                                                                    |
|   provided from operating activities:                                                                                     |                                                 |                                                                                                    |
|   Depreciation, depletion and amortization                                                                                | 394,789                                    | 842,304                                                                                       |
|  Accretion of asset retirement obligation                                                                                      | 177                                        | -                                                                              |
|   Changes in operating assets and  liabilities:

 Decrease (increase) in accounts receivable - oil and  gas revenues | 168,472                                    | (743,873)                                                                                          |
|  Increase in due from managing general partner                                                                                 | (777)                                           |                  - |
|   Decrease in accounts payable                                                                                            |     (3,660)                      |     (4,320)                                                                         |
|          Net  cash provided from operating activities                                  |  1,071,779                       |  1,159,436                                                                          |
|                                                                                                                                     |                                                 |                                                                                                    |
| Cash flows from financing activities:                                                                                               |                                                 |                                                                                                    |
|   Distributions to partners                                                                                               |  (1,071,456)                               |  (1,163,693)                                                                                  |
|           Net  cash used by financing activities                                  | (1,071,456)                                     | (1,163,693)                                                                                        |
|                                                                                                                                     |                                                 |                                                                                                    |
| Net increase (decrease) in cash                                                                                                     | 323                                        | (4,257)                                                                                       |
| Cash at beginning of period                                                                                                         |       20,399           |       23,773                                                         |
| Cash at end of period                                                                                                               | $      20,722          |       19,516                                                         |
|                                                                                                                                     |                                                 |                                                                                                    |

See accompanying notes to financial statements.

-4-

PDC 2003-B LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

Notes to FinancialStatements

(Unaudited)

1.     AccountingPolicies

        Referenceis hereby made to PDC 2003-B Limited Partnership's (the Partnership's) AnnualReport on Form 10-K for 2004, which contains a summary of significantaccounting policies followed by the Partnership in the preparation of itsfinancial statements.  These policies were also followed in preparing thequarterly report included herein. 

2.     Basisof Presentation

        TheManagement of the Partnership believes that all adjustments (consisting of onlynormal recurring accruals) necessary to a fair statement of the results of suchperiods have been made.  The results of operations for the three months ended March 31, 2005 are not necessarily indicative of the results to be expected for the fullyear. 

3.     Oiland Gas Properties

        ThePartnership follows the successful efforts method of accounting for the cost ofexploring for and developing oil and gas reserves.  Under this method, costs ofdevelopment wells, including equipment and intangible drilling costs related toboth producing wells and developmental dry holes, and successful exploratorywells are capitalized and amortized on an annual basis to operations by theunits-of-production method using estimated proved developed reserves which willbe determined at year end by Petroleum Development Corporation's (ManagingGeneral Partner's) petroleum engineers.  If a determination is made that anexploratory well has not discovered economically producible reserves, then itscosts are expensed as dry hole costs.  

        

The Partnershipassesses impairment of capitalized costs of proved oil and gas properties bycomparing net capitalized costs to undiscounted future net cash flows on afield-by-field basis using expected prices.  Prices utilized in each year'scalculation for measurement purposes and expected costs are held constantthroughout the estimated life of the properties.  If net capitalized costexceeds undiscounted future net cash flow, the measurement of impairment isbased on estimated fair value which would consider future discounted cashflows.

4.     Revenue Recognition

        

Sales of natural gas are recognized whennatural gas has been delivered to a custody transfer point, persuasive evidenceof a sales arrangement exists, the rights and responsibility of ownership passto the purchaser upon delivery, collection of revenue from the sale isreasonably assured and the sales price is fixed or determinable.  Natural gasis sold by the Managing General Partner under contracts with terms ranging fromone month to three years.  Virtually all of the Managing General Partner'scontracts pricing provisions are tied to a market index, with certainadjustments based on, among other factors, whether a well delivers to agathering or transmission line, quality of natural gas and prevailing supplyand demand conditions, so that the price of the natural gas fluctuates toremain competitive with other available natural gas supplies. As a result, thePartnership's revenues from the sale of natural gas will suffer if marketprices decline and benefit if they increase. The Partnership believes that thepricing provisions of its natural gas contracts are customary in the industry.

The Managing General Partner currentlyuses the "Net-Back" method of accounting for transportation arrangements ofnatural gas sales.  The Managing General Partner sells gas at the wellhead andcollects a price and recognizes revenues based on the wellhead sales pricesince transportation costs downstream of the wellhead are incurred by the ManagingGeneral Partner's customers and reflected in the wellhead price.

-5-

PDC 2003-B LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

Notes to FinancialStatements

(Unaudited)

Sales of oil are recognized whenpersuasive evidence of a sales arrangement exists, the oil is verified asproduced and is delivered in a stock tank, collection of revenue from the saleis reasonably assured and the sales price is determinable.  The Partnership iscurrently able to sell all the oil that it can produce under existing salescontracts with petroleum refiners and marketers.  The Partnership does notrefine any of its oil production.  The Partnership's crude oil production issold to purchasers at or near the Partnership's wells under short-term purchasecontracts at prices and in accordance with arrangements that are customary inthe oil industry. 

5.     Derivative Instruments and Hedging Activities

The Managing GeneralPartner utilizes commodity based derivative instruments as hedges to manage aportion of       the Partnership's exposure to price volatility stemming from oiland natural gas production. These instruments consist of CIG (ColoradoInterstate Gas Index) - based contracts for natural gas futures and options forgas production and NYMEX traded oil futures and option contracts for oilproduction.  The costless collars and option contracts hedge committed andanticipated oil and natural gas sales generally forecasted to occur within a 24month period. The Partnership does not hold or issue derivatives for trading orspeculative purposes. 

All derivatives arerecognized on the Partnership balance sheet at their fair value. On the datethe derivative contract is entered into, the Managing General Partnerdesignates the derivative as either a hedge of a forecasted transaction or thevariability of cash flows to be received or paid related to a recognized assetor liability ("cash flow" hedge), or a non-hedging derivative. The ManagingGeneral Partner formally documents all relationships between hedginginstruments and hedged items, as well as its risk-management objective andstrategy for undertaking various hedge transactions. This process includeslinking all derivatives that are designated as cash-flow hedges to specificfirm commitments. The Managing General Partner also formally assesses, both atthe hedge's inception and on an ongoing basis, whether the derivatives that areused in hedging transactions are highly effective in offsetting changes in cashflows of hedged items.  When it is determined that a derivative is not highlyeffective as a hedge or that it has ceased to be a highly effective hedge, thePartnership discontinues hedge accounting prospectively. No hedging activitieswere discontinued during 2005 or 2004.

Changes in fairvalue of a derivative that is highly effective and that is designated andqualifies as a cash-flow hedge are recorded in accumulated other comprehensiveincome, until earnings are affected by the variability in cash flows of thedesignated hedged item. Changes in the fair value of non-hedging derivativesare reported in current-period earnings. The Partnership discontinues hedgeaccounting prospectively when it is determined that the derivative is no longereffective in offsetting changes in the cash flows of the hedged item, thederivative expires or is sold, terminated, or exercised.  Additionally, if thederivative is designated as a hedging instrument, because it is probable that aforecasted transaction will not occur, or the Partnership determines thatdesignation of the derivative as a hedging instrument is no longer appropriate,hedge accounting will be discontinued.

By using derivative financial instrumentsto hedge exposures to changes in commodity prices, the Managing General Partnerexposes the Partnership to credit risk. Credit risk is the failure of thecounterparty to perform under the terms of the derivative contract. When thefair value of a derivative contract is positive, the counterparty owes thePartnership, which creates credit risk. The Managing General Partner minimizesthe credit risk in derivative instruments by entering into transactions withhigh-quality counterparties.

Item2.          Management's Discussion and Analysis of Financial Condition andResults of Operations

Liquidityand Capital Resources

The Partnership was funded on September 3, 2003 with initial Limited and Additional General Partner contributions of $17,345,901 (867.30units) and the Managing General Partner's cash contribution of $3,772,733 inaccordance with the Limited Partnership Agreement.  After payment ofsyndication costs of $1,821,320 and a one-time management fee to the ManagingGeneral Partner of $433,648 the Partnership had available cash of $18,863,666for Partnership activities.

-6-

PDC 2003-B LIMITED PARTNERSHIP

(A West VirginiaLimited Partnership)

Notes to FinancialStatements

(Unaudited)

The Partnershipbegan exploration and development activities subsequent to the funding of thePartnership and completed well drilling activities by December 31, 2003. Twenty-six wells have been drilled, all of which have been completed asproducing wells.   No additional wells will be drilled.

ThePartnership had net working capital at March 31, 2005 of $927,703.

Operations areexpected to be conducted with available funds and revenues generated from oiland gas activities.  No bank borrowings are anticipated.  

Resultsof Operations

# Three months ended March 31, 2005 compared with March 31, 2004 

Oiland gas sales for the three months ended March 31, 2005 were $1,093,254 compared to $2,146,688 for the three months ended March 31, 2004.  For the three months ended March 31, 2005, the Partnership sold 134,755 Mcf of gas and 7,379barrels of oil sold at an average sales price of $5.51 and $47.54, respectively. This compared with 220,574 Mcf of gas and 31,923 barrels of oil at averageprices of $4.61 and $35.42, respectively for the three months ended March 31, 2004.  Lifting cost per Mcfe for the three months ended March 31, 2005 amounted to $1.04 as compared to $0.58 per Mcfe for the three months ended March 31, 2004.  The fixed costs of operations and well maintenance were allocated tolower production volumes, therefore increasing the lifting cost per Mcfe.Depreciation, depletion, and amortization decreased from $842,304 for the threemonths ended March 31, 2004 to $394,789 for the three months ended March 31,2005 as a result of lower volumes of natural gas sold.  Cash distributions tothe partners amounted to $1,071,456 for the three months ended March 31, 2005 and $1,163,693 for the three months ended March 31, 2004.

The Partnership's revenue from oil and gas will beaffected by changes in prices.  As a result of changes in federal regulations,gas prices are highly dependent on the balance between supply and demand.  ThePartnership's gas sales prices are subject to increase and decrease based onvarious market sensitive indices.

CriticalAccounting Policies

 Certain accounting policies are very importantto the portrayal of the Partnership's financial condition and results ofoperations and require management's most subjective or complex judgments.  Inapplying those policies, our management uses its judgment to determine theappropriate assumptions to be used in the determination of certain estimates.Those estimates are based on our historical experience, our observance oftrends in the industry, and information available from other outside sources,as appropriate. The Partnership's critical accounting policies and estimatesare as follows:

RevenueRecognition.  Sales of naturalgas are recognized when natural gas has been delivered to a custody transferpoint, persuasive evidence of a sales arrangement exists, the rights andresponsibility of ownership pass to the purchaser upon delivery, collection ofrevenue from the sale is reasonably assured and the sales price is fixed ordeterminable.  Natural gas is sold by the Managing General Partner undercontracts with terms ranging from one month to three years.  Virtually all ofthe Managing General Partner's contracts pricing provisions are tied to amarket index, with certain adjustments based on, among other factors, whether awell delivers to a gathering or transmission line, quality of natural gas andprevailing supply and demand conditions, so that the price of the natural gasfluctuates to remain competitive with other available natural gas supplies.  Asa result, the Partnership's revenues from the sale of natural gas will sufferif market prices decline and benefit if they increase. The Partnership believesthat the pricing provisions of its natural gas contracts are customary in theindustry.

TheManaging General Partner currently uses the "Net-Back" method of accounting fortransportation arrangements of natural gas sales.  The Managing General Partnersells gas at the wellhead and collects a price and recognizes revenues based onthe wellhead sales price since transportation costs downstream of the wellheadare incurred by the Managing General Partner's customers and reflected in thewellhead price.

-7-

PDC 2003-B LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

Notes to FinancialStatements

(Unaudited)

Salesof oil are recognized when persuasive evidence of a sales arrangement exists,the oil is verified as produced and is delivered in a stock tank, collection ofrevenue from the sale is reasonably assured and the sales price isdeterminable.  The Partnership is currently able to sell all the oil that itcan produce under existing sales contracts with petroleum refiners andmarketers.  The Partnership does not refine any of its oil production.  ThePartnership's crude oil production is sold to purchasers at or near thePartnership's wells under short-term purchase contracts at prices and inaccordance with arrangements that are customary in the oil industry. 

Impairment of Long-Lived Assets. The Partnershipassesses impairment of capitalized costs of proved oil and gas properties bycomparing net capitalized costs to undiscounted future cash flows on afield-by-field basis using expected prices. Prices utilized in each year'scalculation for measurement purposes and expected costs are held constantthroughout the life of the properties. If net capitalized costs exceedundiscounted future net cash flow, the measurement of impairment is based onestimated fair value which would consider future discounted cash flows.

Oil and Gas Properties 

 

Exploration anddevelopment costs are accounted for by the successful efforts method.

The Partnership assesses impairment of capitalized costsof proved oil and gas properties by comparing net capitalized costs to estimatedundiscounted future cash flows on a field-by-field basis using expected prices.Prices utilized in each year's calculation for measurement purposes andexpected costs are held constant throughout the estimated life of theproperties. If net capitalized costs exceed undiscounted future net cash flow,the measurement of impairment is based on estimated fair value which wouldconsider future discounted cash flows.

Property acquisition costs are capitalized whenincurred.  Geological and geophysical costs and delay rentals are expensed asincurred.  The costs of drilling exploratory wells are capitalized pendingdetermination of whether the wells have discovered economically produciblereserves.  If reserves are not discovered, such costs are expensed as dryholes.  Development costs, including equipment and intangible drilling costsrelated to both producing wells and developmental dry holes are capitalized.

Unproved properties and leases are written-off to expensewhen it is determined that they will expire to be abandoned.

Costs of proved properties, including leaseholdacquisitions, exploration and development costs and equipment, are depreciatedand depleted by the unit-of-production method based on estimated proveddeveloped oil and gas reserves.

Upon sale or retirement of complete fields of depreciableor depletable property, the book value thereof, less proceeds or salvage value,is credited or charged to income.  Upon sale of a partial unit of property, theproceeds are credited to accumulated depreciation and depletion.

RecentlyIssued Accounting Pronouncements

 

AssetRetirement Obligations

On March 30, 2005, the FASB issued FASB Interpretation No. 47, "Accounting forConditional Asset Retirement Obligations" (FIN No. 47).  This interpretationclarifies that the term "conditional asset retirement obligation" as used inStatement No. 143 refers to a legal obligation to perform an asset retirementactivity in which the timing and/or method of settlement are conditional on afuture event that may or may not be within the control of the entity incurringthe obligation.  The obligation to perform the asset retirement activity isunconditional even though uncertainty exists about the timing and/or method ofsettlement.  Thus, the timing and/or method of settlement may 

-8-

PDC 2003-B LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

Notes to FinancialStatements

(Unaudited)

beconditional on a future event.  Accordingly, an entity is required to recognizea liability for the fair value of a conditional asset retirement obligation ifthe fair value of the liability can be reasonably estimated.  Uncertainty aboutthe timing and/or method of settlement of a conditional asset retirement obligationshould be factored into the measurement of the liability, rather than thetiming of recognition of the liability, when sufficient information exists. FIN No. 47 will be effective for the Partnership at the end of the fiscal yearended December 31, 2005. The Partnership has not determined the impact on thePartnership's financial position or results of operations of the application ofFIN No. 47.

DisclosureRegarding Forward Looking Statements

This Form 10-Q contains "forward-lookingstatements" within the meaning of Section 27A of the Securities Act of 1933, asamended (the "Securities Act"), and Section 21E of the Securities Exchange Actof 1934, as amended (the "Exchange Act"). All statements other than statementsof historical facts included in and incorporated by reference into this Form10-Q are forward-looking statements. These forward-looking statements aresubject to certain risks, trends and uncertainties that could cause actualresults to differ materially from those projected. Among those risks, trendsand uncertainties are the Managing General Partner's estimate of thesufficiency of its existing capital sources, its ability to raise additionalcapital to fund cash requirements for future operations, the uncertaintiesinvolved in estimating quantities of proved oil and natural gas reserves, inprospect development and property acquisitions and in projecting future ratesof production, the timing of development expenditures and drilling of wells,and the operating hazards attendant to the oil and gas business. In particular,careful consideration should be given to cautionary statements made in thevarious reports the Partnership has filed with the Securities and ExchangeCommission. The Partnership undertakes no duty to update or revise these forward-lookingstatements. 

Whenused in the Form 10-Q, the words, "expect," "anticipate," "intend," "plan,""believe," "seek," "estimate" and similar expressions are intended to identifyforward-looking statements, although not all forward-looking statements containthese identifying words. Because these forward-looking statements involve risksand uncertainties, actual results could differ materially from those expressedor implied by these forward-looking statements for a number of importantreasons, including those discussed under "Management's Discussions and Analysisof Financial Condition and Results of Operations" and elsewhere in this Form10-Q. 

Item 3.          Quantitative and QualitativeDisclosure About Market Rate Risk

Market-Sensitive Instruments and Risk Management

ThePartnership's primary market risk exposure is commodity price risk.  Thisexposure is discussed in detail below:

Commodity Price Risk

TheManaging General Partner utilizes commodity-based derivative instruments ashedges to manage a portion of its exposure to price risk from its oil andnatural gas sales.  These instruments consist of CIG (Colorado Interstate Gas Index) - based contracts for natural gasfutures and options for gas production and NYMEX traded oil futures and optioncontracts for oil production.  These hedging arrangements have theeffect of locking in for specified periods (at predetermined prices or rangesof prices) the prices the Managing General Partner will receive for the volumeto which the hedge relates.  As a result, while these hedging arrangements arestructured to reduce the Partnership'sexposure to changes in price associated with the hedged commodity, they alsolimit the benefit the Partnership might otherwise have received from pricechanges associated with the hedged commodity.  The Partnership's policyprohibits the use of natural gas and oil future and option contracts forspeculative purposes.

     

-9-

PDC 2003-B LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

Notes to FinancialStatements

(Unaudited)

The following tables summarize the open futures andoptions contracts for the Partnership as of March 31, 2005 and March 31, 2004.

| Commodity | Type | Quantity

Gas-Mmbtu

Oil-Barrels | Weighted

Average   Price | Total

Contract

Amount | Fair

Market

Value |
|-----------|------|----------------------------------|---------------------------|-------------------------|---------------------|

Total Contracts as of March 31, 2005

| Natural Gas | Floors   | 93,443 | 4.19  |               - | 2,490  |
|-------------|----------|--------|-------|----------------------------------------------------------------------------------|-------------|
| Natural Gas | Ceilings | 46,721 | 6.69  |               - | (51,343)    |
| Oil         | Floors   | 3,983  | 32.30 | 128,643                                                                          | 128    |
| Oil         | Ceilings | 1,991  | 40.00 | 79,655                                                                           | (33,047)    |

Contracts maturing in 12 months following March 31, 2005

| Natural Gas | Floors   | 68,572 | 4.07  |                - | 1,010  |
|-------------|----------|--------|-------|----------------------------------------------------------------------------------------|-------------|
| Natural Gas | Ceilings | 34,286 | 6.48  |                - | (46,316)    |
| Oil         | Floors   | 3,983  | 32.30 | 128,643                                                                                | 128    |
| Oil         | Ceilings | 1,991  | 40.00 | 79,655                                                                                 | (33,047)    |
|             |          |        |       |                                                                                        |             |

Prior Year Total Contracts as of March 31, 2004

| Natural Gas | Floors   | 46,761 | 3.45  |               - | -     |
|-------------|----------|--------|-------|----------------------------------------------------------------------------------|---------------------------|
| Natural Gas | Ceilings | 23,381 | 4.59  |               - | (7,493)                   |
| Oil         | Sales    | 27,431 | 31.63 | 867,642                                                                          | (36,057)                  |

The maximum term over which the Partnership is hedgingexposure to the variability of cash flows for commodity price risk is 19months.                               

Disclosure of Limitations

As the information above incorporates only thoseexposures that exist at March 31, 2005, it does not consider those exposures orpositions which could arise after that date. As a result, the Partnership'sultimate realized gain or loss with respect to commodity price fluctuationswill depend on the exposures that arise during the period, the Partnership'shedging strategies at the time and commodity prices at the time.

Item 4.          Controls and Procedures

Under the supervision and with the participation of theManaging General Partner's management, including the Managing General Partner'sChief Executive Officer and Chief Financial Officer, the Managing GeneralPartner has evaluated the effectiveness of the design and operation of itsdisclosure controls and procedures (as defined in Exchange Act Rule 13a-15(e))as of the end of this fiscal quarter, and, based on their evaluation, the ChiefExecutive Officer and 

Chief Financial Officer have concluded that thesedisclosure controls and procedures are effective in all material respects,including those to ensure that information required to be disclosed in reportsfiled or submitted under the Securities Exchange Act is recorded, processed,summarized, and reported, within the time periods specified in the Commission'srules and forms, and is accumulated and communicated to management, includingthe Managing General Partner's Chief Executive Officer and Chief FinancialOfficer, as appropriate to allow for timely disclosure. There have been nosignificant changes in our internal control over financial reporting or inother factors that have materially affected or are reasonably likely to materiallyaffect these controls that occurred during the Partnership's last fiscalquarter and subsequent to the date of their evaluation.

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CONFORMED COPY

PART II - OTHERINFORMATION

Item1.     Legal Proceedings

            None.

Item 6.    Exhibits

| Exhibit Name                                                                                                                                                                                                                                    | Exhibit 

Number |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------|
|                                                                                                                                                                                                                                                 |                  |
| Rule  13a-14(a)/15d-14(a) Certifications by

 Chief  Executive Officer                                                                                                                                                                     | 31               |
| Rule  13a-14(a)/15d-14(a)Certification by

 Chief  Financial Officer                                                                                                                                                                       | 31               |
| Title 18 U.S.C.  Section 1350 (Section 906 of Sarbanes-Oxley Act of 2002) Certifications by  Chief Executive Officer and Chief Financial Officer of Petroleum Development  Corporation, the managing general partner of the Limited Partnership | 32               |
|                                                                                                                                                                                                                                                 |                  |
|                                                                                                                                                                                                                                                 |                  |

                                                                                         SIGNATURES

     Pursuant to the requirements of the SecuritiesExchange Act of 1934 the registrant has duly caused this report to be signed onits behalf by the undersigned thereunto duly authorized.

|                          | PDC 2003-B Limited Partnership

       (Registrant)

  By its Managing General Partner

Petroleum Development Corporation                                |
|--------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                          |                                                                                                                                                                                   |
|                          |                                                                                                                                                                                   |
|                          |                                                                                                                                                                                        |
| Date:  May 13, 2005 |   /s/ Steven R. Williams        

      Steven R. Williams

         Chairman |
|                          |                                                                                                                                                                                        |
|                          |                                                                                                                                                                                        |
| Date: May 13, 2005       |   /s/ Darwin L. Stump    

      Darwin L. Stump

      Chief Financial Officer                                  |

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