UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 Current Report
                       Pursuant to Section 13 or 15(d) of
                           the Securities Act of 1934


Date of Report (Date of earliest event reported): July 11, 2007

      GEODYNE INSTITUTIONAL/PENSION ENERGY INCOME LIMITED PARTNERSHIP P-4
      GEODYNE INSTITUTIONAL/PENSION ENERGY INCOME LIMITED PARTNERSHIP P-6

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             (Exact name of Registrant as specified in its Charter)

                        P-4: 0-18308            P-4: 73-1341929
   Oklahoma             P-6: 0-18937            P-6: 73-1357375
- ----------------      ----------------        -------------------
(State or other         (Commission           (I.R.S. Employer
 jurisdiction of        File Number)          Identification No.)
 incorporation)

                  Two West Second Street, Tulsa, Oklahoma 74103
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               (Address of principal executive offices) (Zip Code)

Registrant's telephone number, including area code: (918) 583-1791

Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the Registrant under any of the
following provisions:

      [ ] Written  communications  pursuant to Rule 425 under the Securities Act
(17 CFR 230.425)
      [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17
CFR 240.14a-12)
      [ ]  Pre-commencement  communications  pursuant to Rule 14d-2(b) under the
Exchange Act (17 CFR 240.14d-2(b))
      [ ]  Pre-commencement  communications  pursuant to Rule 13e-4(c) under the
Exchange Act (17 CFR 240.13e-4(c))


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ITEM 2.01.  COMPLETION OF ACQUISITION OR DISPOSITION OF ASSETS

     On July 11, 2007 the Geodyne  Institutional/Pension  Energy Income  Limited
Partnership  P-4  and  Geodyne   Institutional/Pension   Energy  Income  Limited
Partnership  P-6 (the  "Partnerships")  sold  their  interests  in a  number  of
producing  properties  to  independent  third  parties  at The Oil and Gas Asset
Clearinghouse auction in Houston, Texas. In addition,  Samson Resources Company,
an  affiliate  of  the  General  Partner,  purchased  properties  from  the  P-4
Partnership  through the  competitive  bidding  process at the same  auction for
total net proceeds of approximately $4,000. Total net proceeds,  including sales
to affiliated entities, for the auction are as described below:


                                       Reserves
       Number                           Sold as        Reserve
         of    Location    Number     of 12/31/06       Value
        Wells     of         of       Oil     Gas       Sold        Net
P/ship  Sold  Properties Purchasers (Bbls)   (Mcf)    12/31/06    Proceeds
- ------ ------ ---------- ---------- ------  -------  ----------  ----------

  P-4    92   Arkansas        3      4,733  406,742  $1,011,342  $1,312,000
              and Texas

  P-6     7   Texas           4      4,542  923,652   1,973,996   3,368,000

     The transactions are subject to standard auction closing conditions.

     The proceeds from the sales, less any additional transaction costs, will be
included in the November 15, 2007 cash distributions paid by the Partnerships.

     This sale was in conjunction with the Partnerships'  scheduled  termination
on December 31, 2007. All of the  Partnerships'  properties will be sold as part
of the liquidation  process.  It is anticipated that auction sales will continue
through at least early 2008.

ITEM 9.01.  FINANCIAL STATEMENTS AND EXHIBITS

     The pro forma  financial  information  that would be  required  pursuant to
Article 11 of  Regulation  S-X will be filed by amendment to this Form 8-K on or
before August 1, 2007.

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                                   SIGNATURES

      Pursuant to the  requirements of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                             GEODYNE INSTITUTIONAL/PENSION ENERGY INCOME LIMITED
                                 PARTNERSHIP P-4
                             GEODYNE INSTITUTIONAL/PENSION ENERGY INCOME LIMITED
                                 PARTNERSHIP P-6

                             By:  GEODYNE RESOURCES, INC.
                                  General Partner

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

DATE: July 17, 2007


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