Exhibit 99

    CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Hallador Petroleum Company
(the "Company"), on Form 10-QSB for the quarterly period ended March 31, 2003,
as filed with the Securities  and Exchange  Commission on the date hereof
(the "Report"), the undersigned, in the capacities and dates indicated below,
hereby  certifies  pursuant to 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the  Sarbanes-Oxley Act of 2002, that to his knowledge: (1) The
Report fully complies with the requirements  of Section 13(a) or 15(d) of the
Securities  Exchange Act  of 1934; and (2) The information contained in the
Report fairly presents, in all material respects, the financial condition and
results of operations of the Company.


Dated: May 20, 2003                  By:/S/ VICTOR P. STABIO
                                            Chief Executive Officer
                                            and Chief Financial Officer