SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                     FORM 15


Certification and Notice of Termination of Registration Under Section 12(g) of
the Securities Exchange Act of 1934 or Suspension of Duty to File Reports Under
Sections 13 and 15(d) of the Securities Exchange Act of 1934.

                         Commission File No.: 0-19563
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               Geodyne Energy Income Limited Partnership III-G
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            (Exact name of registrant as specified in its charter)

             Two West Second Street, Tulsa, OK 74103 918-583-1791
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    (Address, including zip code, and telephone number, including area code,
                  of registrant's principal executive offices)

                    Units of Limited Partnership Interest
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          (Title of each class of securities covered by this form.)

                                     None
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       (Titles of all other classes of securities for which a duty to file
                  reports under section 13(a) or 15(d) remains)

Please place an X in the box(es) to designate the appropriate rule provision(s)
relied upon to terminate or suspend the duty to file reports:

      Rule 12g-4(a)(1)(i)   (  )    Rule 12h-3(b)(1)(ii)   (X )
      Rule 12g-4(a)(1)(ii)  (X )    Rule 12h-3(b)(2)(i)    (  )
      Rule 12g-4(a)(2)(i)   (  )    Rule 12h-3(b)(2)(ii)   (  )
      Rule 12g-4(a)(2)(ii)  (  )    Rule 15d-6             (  )
      Rule 12h-3(b)(1)(i)   (  )

Approximate number of holders of record as of the certification or notice
date:    486
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Pursuant to the  requirements  of the Securities  Exchange Act of 1934,  Geodyne
Energy Income Limited Partnership III-G has caused this  certification/notice to
be signed on its behalf by the undersigned duly authorized person.


Date: May 8, 2003             By: //s// Dennis R. Neill
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                                    Dennis R. Neill, President
                                    Geodyne Resources, Inc.
                                    General Partner