Exhibit 99.2
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                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

     In connection with the Quarterly Report of Unit Corporation (the "Company")
on Form 10-Q for the period ended September 30, 2002 as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), I, Larry
D. Pinkston, Chief Financial Officer of the Company, certify, solely for the
purpose of complying with 18 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of
the Sarbanes-Oxley Act of 2002, that:

     (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.


                                       /s/ Larry D. Pinkston
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                                       Larry D. Pinkston
                                       Chief Financial Officer
                                       November 5, 2002