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


      The undersigned hereby certify, pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the
undersigned's best knowledge and belief, the Annual Report on Form 10-K for the
Geodyne Institutional/Pension Energy Income Limited Partnership P-4 ("Issuer")
for the period ending December 31, 2002 as filed with the Securities and
Exchange Commission on the date hereof (the "Report"):

      (a)   fully complies with the requirements of section 13(a) or 15(d) of
            the Securities Exchange Act of 1934; and

      (b)   the information contained in the Report fairly presents, in all
            material respects, the financial condition and results of operations
            of the Issuer.

      Dated this 25th day of March, 2003.

                                   GEODYNE INSTITUTIONAL/PENSION ENERGY
                                   INCOME LIMITED PARTNERSHIP P-4
                                   ("Issuer")

                                    //s// Dennis R. Neill
                                    -----------------------------------
                                    Dennis R. Neill
                                    President (Chief Executive Officer)

                                    //s// Craig D. Loseke
                                    -----------------------------------
                                    Craig D. Loseke
                                    Chief Accounting Officer
                                    (Chief Financial Officer)