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 Quarterly Report on Form
10-Q for the Geodyne Institutional/Pension Energy Income Limited Partnership
P-3 ("Issuer") for the period ending June 30, 2003 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 13th day of August, 2003.

                              GEODYNE INSTITUTIONAL/PENSION ENERGY
                              INCOME LIMITED PARTNERSHIP P-3
                              ("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)

      A signed original of this written statement  required by Section 906 has
been  furnished  to  Geodyne   Institutional/Pension   Energy  Income  Limited
Partnership P-3 and will be retained by Geodyne  Institutional/Pension  Energy
Income  Limited  Partnership  P-3 and furnished to the Securities and Exchange
Commission or its staff upon request.