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 000-51309

I.R.S. Employer IdentificationNumber 20-2088347

PDC 2005-A 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 2005-A LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

INDEX

| PART I - FINANCIAL INFORMATION  | Page No.                                                                                                                                                |
|---------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                 |                                                                                                                                                         |  |  |
| Item 1.1.                       | Financial  Statements                                                                                                                                   |  |
|                                 | Balance Sheet - March 31, 2005 (unaudited)                                                                                                              |  1 |
|                                 |                                                                                                                                                         |  |  |
|                                 | Statement of Operations -  Period from February 9, 2005 (date of inception) 

 to March 31, 2005  (unaudited)                            |  2 |
|                                 |                                                                                                                                                         |  |  |
|                                 | Statement of Partners' Equity and Comprehensive Income  (Loss) - Period from 

 February 9, 2005 (date of inception) to March 31, 2005 (unaudited) |  3 |
|                                 |                                                                                                                                                         |  |  |
|                                 | Statement of Cash Flows- Period from February 9, 2005 (date of inception) to

 March 31, 2005 (unaudited)                                          |  4 |
|                                 |                                                                                                                                                         |  |  |
|                                 |                                                                                                                                                         | Notes to Financial Statements |  5 |
|                                 |                                                                                                                                                         |  |  |
| Item 2.                         | Management's Discussion and Analysis of Financial 

Condition and Results of Operations                                                                 | 6 |
|                                 |                                                                                                                                                         |  |  |
| Item 3.                         | Controls and Procedures                                                                                                                                 | 8 |
|                                 |                                                                                                                                                         |  |  |
| PART II  OTHER INFORMATION |                                                                                                                                                         |
|                                 |                                                                                                                                                         |  |  |
| Item 1.                         | Legal Proceedings                                                                                                                                       | 9 |
|                                 |                                                                                                                                                         |  |  |
| Item 6.                         | Exhibits                                                                                                                                                | 9 |
|                                 |                                                                                                                                                         |  |  |
|                                 |                                                                                                                                                         |  |  |
|                                 |                                                                                                                                                         |  |  |  |

PDC 2005-A LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

Balance Sheet

March 31, 2005 (Unaudited)

|                                   |                                                                |
|-----------------------------------|----------------------------------------------------------------|
| Assets                            |                                                                |
|                                   |                                                                |
| Current assets:                   |                                                                |
| Cash                              | $           44,035,682 |
| Due from Managing General Partner | 159,978                                                        |
| Due from PDC Securities, Inc.     |           1,010   |
|   Total current assets  | 44,196,670                                                     |
|                                   |                                                                |
|                                   | $ 44,196,670                                                   |
|                                   |                                                                |
| Partners' Equity                  |                                                                |
|                                   |                                                                |
| Partners' Equity                  | $44,196,670                                                    |
|                                   |                                                                |
|                                   | $44,196,670                                                    |

                                 See accompanying notesto financial statements.

1

PDC 2005-A LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

Statement ofOperations

Period from February 9, 2005 (date of inception) to March 31, 2005 

(Unaudited)

                                                                                                                                                           

|                                                           |                                           |
|-----------------------------------------------------------|---------------------------------------------------------------|
| Revenues:                                                 |                                                               |
| Interest income                                           | $65,791                                                  |
|                                                           | 65,791                                                   |
| Expenses:                                                 |                                                               |
| Management fee                                            | 599,062                                                  |
| Direct administration cost                                |          22      |
|                                                           |  599,084                                            |
| Net loss                                                  | $(533,293)                                                    |
| Net loss per limited and additional general partner  unit | $         (274)  |
|                                                           |                                                               |

                 See accompanying notes to financialstatements.

2

PDC 2005-A LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

Statement ofPartners' Equity 

Period from February 9, 2005 (date of inception) to March 31, 2005

(Unaudited)

|                                              | Limited and   Additional General Partners |  Managing

General Partner |                                         Total |
|----------------------------------------------|------------------------------------------------|---------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|                                              |                                                |                                 |                                                                                                                                                                                                                                             |
| Partners initial capital contributions  | $39,937,470                                    | 8,826,181                       | 48,763,651                                                                                                                                                                                                                             |
| Syndication costs                            | (4,033,688)                                    | -           | (4,033,688)                                                                                                                                                                                                                                 |
|                                              |                                                |                                 |                                                                                                                                                                                                                                             |
| Net (loss) income                            |     (546,447)                   |      13,154 |  (533,293)                                                                                                                                                                                                                             |
|                                              |                                                |                                 |                                                                                                                                                                                                                                             |
| Balance March 31, 2005                       | $ 35,357,335                         | 8,839,335                       | 44,196,670                                                                                                                                                                                                                             |
|                                              |                                                |                                 |                                                                                                                                                                                                                                             |

   See accompanying notes to financial statements.

3

PDC 2005-A LIMITEDPARTNERSHIP

(A West Virginia LimitedPartnership)

Statement of CashFlows

Period from February 9, 2005 (date of inception) to March 31, 2005 

(Unaudited)

|                                                                                                                |                                                                                                      |
|----------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------|
| Cash flows from operating activities:                                                                          |                                                                                                           |
| Net loss                                                                                                       | $   (533,293)                                                                                   |
| Adjustments to reconcile net income to net cash 

 used by from operating activities:                |                                                                                                           |
|  Increase in due from Managing General Partner                                                            | (159,978)                                                                                                 |
|  Increase in due from PDC Securities, Inc.                                                                |      (1,010)                                                                          |
|                                                                                                                |                                                                                                           |
|          Net  cash used by operating activities                   |  (694,281)                                                                                           |
|                                                                                                                |                                                                                                           |
| Cash flows from financing activities:                                                                          |                                                                                                           |
|        Limited and additional general partner  contributions                     | 39,937,470                                                                                           |
|        Managing General Partner contribution                                     | 8,826,181                                                                                            |
|         Syndication cost paid                                               | (4,033,688)                                                                                               |
|             Net cash provided from financing activities | 44,729,963                                                                                           |
|                                                                                                                |                                                                                                           |
| Net increase in cash                                                                                           | 44,035,682                                                                                           |
| Cash at beginning of period                                                                                    |                -     |
| Cash at end of period                                                                                          | $44,035,682                                                                                          |

                   See accompanying notes to financialstatements.

4

PDC 2005-A LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

Notes to FinancialStatements

(Unaudited)

        AccountingPolicies 

1.     Basis of Presentation

        TheManagement of PDC 2005-A Limited Partnership (the Partnership) believes thatall adjustments (consisting of only normal recurring accruals) necessary to afair statement of the results of such periods have been made.  The results ofoperations for the period ended March 31, 2005 are not necessarily indicativeof the results to be expected for the full year. 

2.     Oiland Gas Properties

The Partnership willfollow the successful efforts method of accounting for the cost of exploringfor 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 will be capitalized and amortized on an annual basis to operations by theunits-of-production method using estimated proved developed reserves determinedat year end by an independent petroleum engineer, Wright & Company, Inc. If a determination is made that an exploratory well has not discoveredeconomically producible reserves, then its costs will be expensed as dry holecost. 

The Partnership willassess 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 will be held constantthroughout the estimated life of the properties.  If net capitalized costexceeds undiscounted future net cash flow, the measurement of impairment willbe based on estimated fair value which would consider future discounted cashflows.

3.     Revenue Recognition

Sales of natural gas will be recognizedwhen natural gas has been delivered to a custody transfer point, persuasiveevidence of a sales arrangement exists, the rights and responsibility ofownership pass to the purchaser upon delivery, collection of revenue from thesale is reasonably assured and the sales price is fixed or determinable. Natural gas will be sold by the Managing General Partner under contracts withterms ranging from one month to three years.  Virtually all of the ManagingGeneral Partner's contracts pricing provisions will be tied to a market index,with certain adjustments based on, among other factors, whether a well deliversto a gathering or transmission line, quality of natural gas and prevailingsupply and demand conditions, so that the price of the natural gas will fluctuateto remain competitive with other available natural gas supplies. As a result,the Partnership'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 theManaging General Partner's customers and reflected in the wellhead price.

Sales of oil will be 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 willnot refine any of its oil production.  The Partnership's crude oil production willbe sold to purchasers at or near the Partnership's wells under short-termpurchase contracts at prices and in accordance with arrangements that arecustomary in the oil industry. 

5

PDC 2005-A LIMITED PARTNERSHIP

(A West VirginiaLimited Partnership)

Notes to FinancialStatements

(Unaudited)

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

Liquidityand Capital Resources

The Partnership was funded on February 9, 2005 with initial Limited and Additional General Partner contributions of $39,937,470 (1,996.8735units) and the Managing General Partner's cash contribution of $8,826,181 inaccordance with the Limited Partnership Agreement.  After payment ofsyndication costs of $4,033,688 and a one-time management fee to the ManagingGeneral Partner of $599,062 the Partnership had available cash of $44,130,901for Partnership activities.

The Partnership began exploration and developmentactivities subsequent to the funding of the Partnership.  No wells have beendrilled as of March 31, 2005.

ThePartnership had net working capital at March 31, 2005 of $44,196,670.

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

 

Results of Operations

# Period from February 9, 2005 (Date of Inception) to March 31, 2005 

Inaccordance with the Partnership agreement, a one-time management fee equal to 11⁄2% of investors' subscriptions was charged to the Partnership in the amount of$599,062 by the Managing General Partner.  This fee was paid by the Partnershipto the Managing General Partner of the Partnership upon funding of thePartnership.  There was no drilling activity or oil and gas sales for theperiod ended March 31, 2005. 

ThePartnership's revenues from oil and natural gas sales will be affected bychanges in prices.  As a result of changes in federal regulations, gas pricesare highly dependent on the balance between supply and demand.  ThePartnership's oil and gas sales prices are subject to increase and decreasebased on various market sensitive indices.

CriticalAccounting Policies and Estimates  

 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:

 

Revenue Recognition.  Salesof natural gas will be recognized when natural gas has been delivered to acustody transfer point, persuasive evidence of a sales arrangement exists, therights and responsibility of ownership pass to the purchaser upon delivery,collection of revenue from the sale is reasonably assured and the sales priceis fixed or determinable.  Natural gas will be sold by the Managing GeneralPartner under contracts with terms ranging from one month to three years. Virtually all of the Managing General Partner's contracts pricing provisions willbe tied to a market index, with certain adjustments based on, among otherfactors, whether a well delivers to a gathering or transmission line, qualityof natural gas and prevailing supply and demand conditions, so that the priceof the natural gas will fluctuate to remain competitive with other availablenatural gas supplies.  As a result, the Partnership's revenues from the sale ofnatural gas will suffer if market prices decline and benefit if they increase. ThePartnership believes that the pricing provisions of its natural gas contractsare customary in the industry.

6

PDC 2005-A LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

(Unaudited)

Notes to FinancialStatements

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.

Salesof oil will be recognized when persuasive evidence of a sales arrangementexists, the oil is verified as produced and is delivered in a stock tank,collection of revenue from the sale is reasonably assured and the sales priceis determinable.  The Partnership will not refine any of its oil production. The Partnership's crude oil production will be sold to purchasers at or nearthe Partnership's wells under short-term purchase contracts at prices and inaccordance with arrangements that are customary in the oil industry. 

Oil and Gas Properties 

 

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

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

Property acquisition costs will be capitalized whenincurred.  Geological and geophysical costs and delay rentals will be expensedas incurred.  The costs of drilling exploratory wells will be capitalizedpending determination of whether the wells have discovered economicallyproducible reserves.  If reserves are not discovered, such costs will beexpensed as dry holes.  Development costs, including equipment and intangibledrilling costs related to both producing wells and developmental dry holes willbe capitalized.

Unproved properties and leases will be written-off toexpense when it is determined that they will expire or be abandoned.

Costs of proved properties, including leaseholdacquisitions, exploration and development costs and equipment, will be 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,will be credited or charged to income.  Upon sale of a partial unit ofproperty, the proceeds will be credited to accumulated depreciation anddepletion.

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 

7

PDC 2005-A LIMITEDPARTNERSHIP

(A West VirginiaLimited Partnership)

(Unaudited)

Notes to FinancialStatements

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 be conditional ona future event.  Accordingly, an entity is required to recognize a liabilityfor the fair value of a conditional asset retirement obligation if the fairvalue of the liability can be reasonably estimated.  Uncertainty about thetiming 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. FINNo. 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 theseforward-looking statements. 

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.   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 tomaterially affect these controls that occurred during the Partnership's lastfiscal quarter and subsequent to the date of their evaluation.

8

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 2005-A  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                                  |

9