UNITED STATES  
                         SECURITIES AND EXCHANGE COMMISSION
                                Washington, D. C.  20549

                                   FORM 10-QSB


[x]  QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT 
     OF  1934  


                  For the quarterly period ended March 31, 2005


                                      OR


[ ]  TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE 
     ACT OF 1934


                       Commission File Number 0-14731


                          HALLADOR PETROLEUM COMPANY
            (Exact name of registrant as specified in its charter)


         COLORADO                                      84-1014610
         --------                                      ----------
 (State of incorporation)                   (I.R.S. Employer Identification No.)



       1660 Lincoln Street, Suite 2700, Denver, Colorado 80264-2701
       ------------------------------------------------------------
                  (Address of principal executive offices)



  303.839.5504                                     Fax:  303.832.3013
  ------------                                     ------------------
                    (Issuer's telephone numbers) 



Check whether the issuer (1) filed all reports required by Section 13 or 
15(d) of the Securities Exchange Act during the past 12 months, and (2) has
been subject to the filing requirements for the past 90 days: Yes [X]  No[ ]


Shares outstanding as of May 16, 2005; 7,093,150



PART I - FINANCIAL INFORMATION


                         Consolidated Balance Sheet
                              (in thousands)

 

                                                         March 31,  December 31,
                                                           2005        2004*
                                                          ------      ------
                                                               
ASSETS
Current assets:
  Cash and cash equivalents                               $18,122    $19,927
  Oil and gas operator bonds                                  253        252
  Accounts receivable-
    Oil and gas sales                                         602        573
    Well operations                                           130        117
    E&B account receivable                                     36        230
    E& B - note receivable                                  3,600      3,569
                                                           ------     ------
       Total current assets                                22,743     24,668 
                                                           ------     ------
Oil and gas properties, at cost (successful efforts):
  Unproved properties                                       1,511        220
  Proved properties                                         2,155      2,155
  Less - accumulated depreciation,
    depletion, amortization and impairment                 (1,748)    (1,740)
                                                           ------     ------
                                                            1,918        635
                                                           ------     ------
Investment in Catalytic Solutions                             150        150
Investment in CELLC                                           325
Other assets                                                   68         67
                                                           ------     ------
                                                          $25,204    $25,520
                                                           ======     ======
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable and accrued liabilities                $   642   $    642
  Oil and gas sales payable                                   904        922
  Income tax payable                                          300        300
  Partnership options payable                                            407
                                                           ------     ------
       Total current liabilities                            1,846      2,271
                                                           ------     ------
Minority interest                                           9,784      9,742
                                                           ------     ------
Stockholders' equity:
  Preferred stock, $.10 par value;
    10,000,000 shares authorized; none issued
  Common stock, $ .01 par value; 100,000,000
    shares authorized, 7,093,150 shares issued                 71         71
Additional paid-in capital                                 18,061     18,061
Accumulated deficit                                        (4,558)    (4,625)
                                                           ------     ------
                                                           13,574     13,507
                                                           ------     ------
                                                          $25,204    $25,520
                                                           ======     ======

*Derived from the Form 10-KSB.


                                See accompanying notes.

                          Consolidated Statement of Operations
                                    (in thousands)



                                                        Three months ended March 31,
                                                             2005         2004
                                                            ------       ------
                                                                 
Revenue: 
  Gas                                                       $   167      $   158
  Natural gas liquids                                            44           32
  Oil                                                            25           20
  Interest                                                      133            6
                                                             ------       ------
                                                                369          216
                                                             ------       ------
Costs and expenses:     
  Lease operating                                                48           43
  Delay rentals                                                   4           30
  Depreciation, depletion and amortization                       10           12
  General and administrative                                    168          186
                                                             ------       ------
                                                                230          271
                                                             ------       ------

Loss (loss) from continuing operations  
  before minority interest                                      139          (55)
Minority interest                                               (42)          16
                                                             ------       ------
Income (loss) from continuing operations                         97          (39)
Income tax-current                                              (30)      
Income from discontinued operations net of minority 
  interest of $213                                                           498
                                                             ------       ------ 
Net income                                                  $    67      $   459
                                                             ======       ======
Income (loss) per share - basic
  Continuing operations                                     $   .01      $  (.01)
  Discontinued operations                                                    .07
                                                             ------       ------
Net earnings per share                                      $   .01      $   .06
                                                             ======       ======
Weighted average shares outstanding-basic                     7,093        7,093
                                                             ======       ======


                              See accompanying notes.


                         Consolidated Statement of Cash Flows
                                     (in thousands)



                                                        Three months ended March 31,
                                                             2005         2004
                                                            ------       ------
                                                                   

Net cash provided by operating activities:                  $   222      $ 1,027  
                                                             ------       ------
Cash flows from investing activities:
  Properties                                                 (1,292)        (132)
  Investment in COALition                                      (325)
  Other                                                          (3)
                                                             ------       ------
                                                             (1,620)        (132)

Cash flows from financing activities:
  Repurchase of partnership options                            (407)
                                                             ------       ------
Net (decrease) increase in cash and cash equivalents         (1,805)         895
  
Cash and cash equivalents, beginning of period               19,927        3,319
                                                             ------       ------
Cash and cash equivalents, end of period                    $18,122      $ 4,214
                                                             ======       ======



                                      See accompanying notes.




                             Notes to Financial Statements


1.  The interim financial data is unaudited; however, in our opinion, it 
    includes all adjustments, consisting only of normal recurring adjustments
    necessary for a fair statement of the results for the interim periods.
    The financial statements included herein have been prepared pursuant to
    the SEC's rules and regulations; accordingly, certain information and
    footnote disclosures normally included in GAAP financial statements have
    been condensed or omitted.

2.  Our organization and business, the accounting policies we follow and
    other information are contained in the notes to our financial statements
    filed as part of our 2004 Form 10-KSB.  This quarterly report should be 
    read in conjunction with that annual report. 

3.  As allowed in SFAS 123, Accounting for Stock-Based Compensation, we continue
    to apply APB 25, Accounting for Stock Issued to Employees, and
    related interpretations in recording compensation related to our plan. 
    The pro forma effect on our net income was not material for any of the
    periods presented.  No grants were issued during the 2004 period.

    On April 15, 2005, we issued 750,000 options at an exercise price of $2.25,
    which were valued based on a March 2005 private transaction between one of
    our shareholders and a third party.  These options vest at 1/3 per year for 
    the next three years.  There are no more options available for issuance.

4.  On August 10, 2004, we entered into an agreement with E&B Natural Resources
    Management Corporation (a private company) to sell all of our interest in 
    the South Cuyama field and adjacent exploration areas, all located in 
    Santa Barbara County, California, for $23 million; consisting of $19.5
    million in cash and an interest bearing (3.5%) note of $3.5 million due 
    on September 30, 2005.  Closing occurred on September 30, 2004 and we 
    recorded a pre-tax gain of about $14 million.   Results from the South 
    Cuyama field have been presented as discontinued operations in the
    accompanying Consolidated Statement of Operations.  Revenue and expenses
    before the minority interest were about $2.1 million and $1.4 million,
    respectively for the three months ended March 31, 2004.

    Due to the sale, the joint board of directors of Hallador Petroleum 
    Company and the Executive Committee of the Partnership, voted to discontinue
    new partnership operations effective October 1, 2004.  Currently, the
    Partnership's assets consist of cash, the $3.5 million note receivable, oil
    and gas properties in New Mexico and Texas, and other miscellaneous assets.
    On October 1, 2004, the joint board of directors of Hallador  Petroleum 
    Company, and the Executive Committee of the Partnership, valued the oil and
    gas properties in New Mexico and Texas and the other miscellaneous assets at
    $4 million.  On May 6, 2005 we made a cash distribution of about $5 million
    to the limited partners.  During the second quarter 2005, we will offer to
    purchase the limited partners interest in the Partnership for about
    $1.2 million.  This does not include their interest in the $3.5 million
    note receivable which is due September 30, 2005.  Upon collection of the
    note a final distribution will be made to the limited partners.

5.  In late March 2005, we invested $325,000 for a 29% interest in a newly 
    formed entity called COALition Energy, LLC (CELLC).  CELLC was formed to 
    pursue coal investments.  To date CELLC has not commenced significant
    operations.  We account for this investment using the equity method
    of accounting.

    Four of our directors, David Hardie, Steven Hardie, Cortlandt Dietler, 
    and Victor Stabio, who is also our CEO and CFO, acquired, at the same
    proportionate cost, and on the same terms as us, membership interests of 
    3.09%, 3.09%, 4.64%, and 3.09%, respectively, based on personal invests
    of $33,333, $33,333 , $50,000 and $33,334, respectively, in COALition.  
    There are 12 other members of COALition, with Cortlandt Dietler, Victor 
    Stabio, and three other individuals, constituting the initial directors
    of COALition.

    Kestrel Energy Partners, which is 82.64% owned by Yorktown Energy Partners,
    VI, L.P., acquired, through a wholly-owned subsidiary, a 20% interest in 
    COALition for $224,490.  Yorktown Energy Partners VI, L.P. and Yorktown 
    Energy Partners II, L.P., as well as their respective general partners and
    Yorktown Partners LLC, the manager of both of these partnerships, are under
    common control.  Yorktown Energy Partners II., L.P. owns approximately 32%
    of our common stock.


                               HALLADOR PETROLEUM COMPANY
               Management's Discussion and Analysis or Plan of Operation

RESULTS OF OPERATIONS
--------------------- 

Overview
-------- 

The following discussion updates the MD&A section of our 2004 Form 10-KSB which 
was filed on April 15, 2005 and should be read in conjunction thereto.  There 
have been no significant changes or developments to report.

     North Dakota
     ------------- 

As disclosed in the 2004 Form 10-KSB, in February 2005 we invested $1.3 million 
in a 2,500 acre oil development prospect in McKenzie County, North Dakota,
located on the mid-western Montana border.  On April 25, 2005 we purchased 
additional acres for $111,000.  We have  a 37.5% WI (.328 NRI), Kodiak Oil 
and Gas, the operator also has a 37.5% WI, the remaining 25% is owned by
others. Kodiak is headquartered in Denver and its stock trades on the TSX
Venture Exchange under the symbol KOG.  We hope to drill the first oil well
in late 2005, at a cost of about $2.5 million to the 100%.  This is a
horizontal play so a vertical well is drilled to 8,000 feet and then two 
horizontal laterals are drilled at distance of 4,000 - 6,000 feet in opposite 
directions.  Headington Oil Company is a major operator in this area on the
Montana side and Burlington Resources is a major operator on the North Dakota
side.  Depending on the success of the first well, our total commitment could
be an additional $2 million.

     San Juan Basin
     -------------- 

As disclosed in the Form 10-KSB two more development gas wells are planned for 
July 2005.  The estimated costs to drill and complete these two wells are about
$1 million each to the 100%.  We have a .056 WI (.047 NRI) in each of the wells.

     Coal
     ---- 
 
As disclosed in the 2004 Form 10-KSB, in late March 2005, we invested $325,000 
for a 29% interest in a newly formed entity called COALition Energy, LLC 
(CELLC).  To date, CELLC has not commenced significant operations.

Four of our directors, David Hardie, Steven Hardie, Cortlandt Dietler, and 
Victor Stabio, who is also our CEO and CFO, acquired, at the same proportionate
cost, and on the same terms as us, membership interests of 3.09%, 3.09%, 4.64%,
and 3.09%, respectively, based on personal invests of $33,333, $33,333, $50,000
and $33,334, respectively, in COALition.  There are 12 other members of 
COALition, with Cortlandt Dietler, Victor Stabio, and three other individuals,
constituting the initial directors of COALition.

Kestrel Energy Partners, which is 82.64% owned by Yorktown Energy Partners, VI,
L.P., acquired, through a wholly-owned subsidiary, a 20% interest in COALition
for $224,490.  Yorktown Energy Partners VI, L.P. and Yorktown Energy Partners 
II, L.P., as well as their respective general partners and Yorktown Partners 
LLC, the manager of both of these partnerships, are under common control.  
Yorktown Energy Partners II., L.P. owns approximately 32% of our common stock.

Liquidity and Capital Resources 
-------------------------------- 

Cash and cash to be provided from operations are expected to enable us to meet
our obligations as they become due during the next several years. 

We have no bank debt, no special purpose entities and no off-balance sheet 
arrangements.
 
Results Of Continuing Operations
-------------------------------- 

     Year-To-Date Comparison
     ----------------------- 

The table below (in thousands) provides sales data and average prices for the 
period.




                               2005                         2004
                     --------------------------     ----------------------
                      Sales    Average              Sales   Average
                      Volume    Price    Revenue    Volume   Price    Revenue
                     -------   -------   -------     ------   -----   -------
                                                    
Gas - mcf
  San Juan            17       $ 5.95     $101      16       $ 4.74    $76
  Other               11         6.00       66      14.8       5.56     82

NGLs - barrels
  San Juan             1.5      29.47       44       1.6      20.00     32

Oil - barrels
  Other                 .533    45.97       25        .608    32.92     20      




Revenue increased due to higher prices. 

Interest income increased due to investing the proceeds from the sale that
occurred in September 2004 and interest income earned on the $3.5 million
note due September 30, 2005.

General and administrative expenses declined due to the termination of two 
employees after the California property sale, and salary reductions in 
the Denver office.  Victor P. Stabio's salary was reduced 26% and 
certain other employees' salaries were reduced 10%.

After the $5 million distribution to the limited partners on May 6, 2005,
interest income will decrease for the remainder of the year.



ITEM 3. CONTROLS AND PROCEDURES

We maintain a system of disclosure controls and procedures that are designed 
for the purposes of ensuring that information required to be disclosed in our
SEC reports is recorded, processed, summarized and reported within the time 
periods specified in the SEC's rules and forms, and that such information is
accumulated and communicated to our CEO as appropriate to allow timely 
decisions regarding required disclosure.

As of the end of the period covered by this report, we carried out an 
evaluation, under the supervision and with the participation of our CEO of 
the effectiveness of the design and operation of our disclosure controls and 
procedures. Based upon that evaluation, our CEO, who is also our CFO,
concluded that our disclosure controls and procedures are effective for the
purposes discussed above. There have been no significant changes in our 
internal controls or in other factors that could significantly affect these
controls subsequent to the date of the evaluation.

PART II-OTHER INFORMATION
 
Item 6.  Exhibits and Reports on Form 8-K

(a) Exhibits:  

    31 -- SOX 302 Certification

    32 -- SOX 906 Certification


                                        Signature


In accordance with the requirements of the Exchange Act, the Registrant has
caused this report to be signed on its behalf by the undersigned, thereunto 
duly authorized.


                                        HALLADOR PETROLEUM COMPANY



Dated:  May 16, 2005                   By:  /s/VICTOR P. STABIO
                                            CEO AND CFO
                                            Signing on behalf of registrant and
                                            as principal financial officer.