Document:

SECOND AMENDMENT TO
                            AGREEMENT OF PARTNERSHIP
                       GEODYNE PRODUCTION PARTNERSHIP II-H

      This Second  Amendment to Agreement of Partnership  of Geodyne  Production
Partnership  II-H (the  "Partnership")  is entered  into by and between  Geodyne
Resources,  Inc.  ("Resources"),  a Delaware corporation,  as successor Managing
Partner, and Geodyne Energy Income Limited Partnership II-H ("Geodyne II-H"), as
General Partner.

      WHEREAS,  on May 17, 1989, Geodyne Production Company  ("Production"),  as
Managing  Partner,  and Geodyne II-H, as General  Partner,  executed and entered
into that certain Agreement of Partnership of PaineWebber/Geodyne  Energy Income
Production Partnership II-H (the "Agreement"); and

      WHEREAS,  on February 26, 1993,  Production  and Geodyne II-H executed and
entered into that certain First  Amendment to Agreement,  whereby it changed (i)
the name of the Partnership from  "PW/Geodyne  Production  Partnership  II-H" to
"Geodyne  Production  Partnership  II-H",  (ii) the address of the Partnership's
principal place of business,  and (iii) the address for the Partnership's  agent
for service of process; and

      WHEREAS,  Section 10.1 of the Agreement provides that the managing partner
of the partnership (the "Managing Partner") may, without prior notice or consent
of any other Partner (as defined in the Agreement),  amend any provision of this
Agreement if, in its opinion,  such amendment  does not have a material  adverse
effect upon the Limited Partnership (as defined in the Agreement); and

      WHEREAS,  Production  merged  with  and  into  Geodyne  Resources,  Inc.
("Resources"), its parent corporation, effective June 30, 1996; and

      WHEREAS,  Section 6.1 of the Agreement  provides that the Managing Partner
may assign its  Managing  Partner  Interest to any entity  which shall  become a
successor  Managing Partner,  if such assignment is in connection with a merger;
and

      WHEREAS,  as a result of the merger of Production with and into Resources,
ownership of the Managing  Partner  Interest in the  Partnership  is assigned to
Resources by operation of law; and

      WHEREAS,  as a result of the merger of Production with and into Resources,
Resources  has  now  succeeded  to  the  position  of  Managing  Partner  of the
Partnership; and

      WHEREAS, Resources, as Managing Partner, desires to amend the Agreement in
order to reflect Resources as the new Managing Partner.

                                      -1-
<PAGE>

      NOW,  THEREFORE,  in  consideration  of  the  covenants,   conditions  and
agreements herein contained, the parties hereto hereby agree as follows:

       All  references  in the  Agreement  to  Geodyne  Production  Company as
       Managing  Partner  are hereby  amended  to  reflect,  instead,  Geodyne
       Resources, Inc. as Managing Partner.

       IN WITNESS  WHEREOF,  the parties hereto have hereunto set their hands as
of the 1st day of July, 1996.

                                     Geodyne Production Company
                                     by Geodyne Resources, Inc.
                                     as successor by merger

                                     By:  /s/ Dennis R. Neill
                                          -------------------------------
                                          Dennis R. Neill
                                          President

                                     Geodyne Resources, Inc.
                                     as Managing Partner

                                     By:  /s/ Dennis R. Neill
                                          -------------------------------
                                          Dennis R. Neill
                                          President

                                     Geodyne Energy Income Limited
                                     Partnership II-H
                                     as General Partner

                                     By   Geodyne Resources, Inc.
                                          General Partner

                                     By:  /s/ Dennis R. Neill
                                          -------------------------------
                                          Dennis R. Neill
                                          President

                                      -2-THIRD AMENDMENT TO
                            AGREEMENT OF PARTNERSHIP
                       GEODYNE PRODUCTION PARTNERSHIP II-H

      This Third  Amendment to Agreement of  Partnership  of Geodyne  Production
Partnership  II-H (the  "Partnership")  is entered  into by and between  Geodyne
Resources,  Inc.  ("Resources"),  a Delaware corporation,  as successor Managing
Partner, and Geodyne Energy Income Limited Partnership II-H ("Geodyne II-H"), as
General Partner.

      WHEREAS,  on May 17, 1989, Geodyne Production Company  ("Production"),  as
Managing  Partner,  and Geodyne II-H, as General  Partner,  executed and entered
into that certain Agreement of Partnership of PaineWebber/Geodyne  Energy Income
Production Partnership II-H (the "Agreement"); and

      WHEREAS,  on February 26, 1993,  Production  and Geodyne II-H executed and
entered into that certain First  Amendment to Agreement,  whereby it changed (i)
the name of the Partnership from  "PW/Geodyne  Production  Partnership  II-H" to
"Geodyne  Production  Partnership  II-H",  (ii) the address of the Partnership's
principal place of business,  and (iii) the address for the Partnership's  agent
for service of process; and

      WHEREAS,   Production   merged  with  and  into   Resources,   its  parent
corporation, effective June 30, 1996; and

      WHEREAS, on July 1, 1996, Production,  Resources and Geodyne II-H executed
and  entered  into that  certain  Second  Amendment  to  Agreement,  whereby all
references to Production as Managing  Partner were amended to reflect,  instead,
Resources as Managing Partner; and

      WHEREAS,  Section 10.1 of the Agreement provides that the managing partner
of the partnership (the "Managing Partner") may, without prior notice or consent
of any other Partner (as defined in the Agreement),  amend any provision of this
Agreement if, in its opinion,  such amendment  does not have a material  adverse
effect upon the Limited Partnership (as defined in the Agreement); and

      WHEREAS,  Section 2.3 of the Agreement provides that the Partnership shall
continue in full force and effect until  December 31,  2001,  provided  that the
Managing  Partner may extend the term of the  Partnership for up to five periods
of two years each or until  dissolution prior thereto pursuant to the provisions
of the Agreement; and

      WHEREAS,  Resources has elected to extend the life of the  Partnership  an
additional two years.

      NOW,  THEREFORE,  be it resolved  that  Section 2.3 is hereby  amended and
rested as follows:

                                      -1-
<PAGE>

            The Production  Partnership shall continue in force and effect until
      December 31, 2003, provided that the Managing Partner may extend such term
      for up to four  periods  of two years  each,  or until  dissolution  prior
      thereto pursuant to the provisions thereof.

       IN WITNESS  WHEREOF,  the parties hereto have hereunto set their hands as
of the 14th day of November, 2001.

                                       Geodyne Resources, Inc.
                                       as Managing Partner

                                       By: /s/ Dennis R. Neill
                                            ----------------------------
                                            Dennis R. Neill
                                            President

                                       Geodyne Energy Income Limited
                                       Partnership II-H
                                       as General Partner

                                       By Geodyne Resources, Inc.
                                          General Partner

                                       By: /s/ Dennis R. Neill
                                            ----------------------------
                                            Dennis R. Neill
                                            President

                                      -2-CERTIFICATE OF LIMITED PARTNERSHIP
                                       OF
                    PAINEWEBBER/GEODYNE INSTITUTIONAL/PENSION
                      ENERGY INCOME P-1 LIMITED PARTNERSHIP

       The undersigned  General Partner hereby duly executes this Certificate of
Limited  Partnership of  PaineWebber/Geodyne  Institution/Pension  Energy Income
Limited  Partnership  P-1 (the  "Partnership"),  which is being  filed  with the
Secretary  of State  of Texas in  accordance  with  the  Texas  Revised  Limited
Partnership Act.

       1.   The    name   of   the    Partnership    is    PaineWebber/Geodyne
Institutional/Pension Energy Income P-1 Limited Partnership.

       2. The address of the registered  office of the  Partnership is 1360 Post
Oak Boulevard,  Suite 1500,  Houston,  TX 77056,  and the name of the registered
agent whose business  office  address will be the same as the registered  office
address is Geodyne Properties, Inc.

       3.   The  address of the  principal  office of the  Partnership  in the
United States where its  partnership  records are to be kept or made available
is c/o Geodyne  Properties,  Inc.,  320 South Boston  Avenue,  the  Mezzanine,
Tulsa, Oklahoma 74103-3708.

       4. The name,  the mailing  address and the street address of the business
or residence of each general partner of the Partnership are as follows:

Name                      Mailing Address             Business Address
----                      ---------------             ----------------

Geodyne Properties,       320 S. Boston Ave.          320 S. Boston Ave.
Inc.                      The Mezzanine               The Mezzanine
                          Tulsa, OK 74103--3708        Tulsa, OK 74103--3708

       SIGNED on this 16th day of March, 1988.

                                         GENERAL PARTNER:

                                         Geodyne Properties, Inc.,
                                         a Delaware corporation

                                         By: /s/ Michael E. Luttrell
                                             -----------------------------
                                             Michael E. Luttrell
                                             Executive Vice President

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