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  Energy Income  Limited  Partnership II-G  ("Issuer") for the period
ending March 31, 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 15th day of May, 2003.

                          GEODYNE ENERGY INCOME LIMITED
                          PARTNERSHIP II-G
                          ("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  Energy Income  Limited  Partnership II-G and will be
retained by Geodyne Energy Income Limited  Partnership II-G and furnished to the
Securities and Exchange Commission or its staff upon request.