SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 10-Q

               QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934


For the quarter ended June 30, 1999


Commission File Number:

      I-B:  0-14657           I-C:  0-14658           I-D:  0-15831
      I-E:  0-15832           I-F:  0-15833

                 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B
                 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
                 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D
                 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E
                 GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F
            --------------------------------------------------------
             (Exact name of Registrant as specified in its Articles)


                                          I-B 73-1231999
                                          I-C 73-1252536
                                          I-D 73-1265223
                                          I-E 73-1270110
         Oklahoma                         I-F 73-1292669
- ----------------------------    -------------------------------
(State or other jurisdiction    (I.R.S. Employer Identification
   of incorporation or                         Number)
     organization)


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


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



Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days.

                        Yes     X               No
                            ------                    ------




                                       1





                          PART I. FINANCIAL INFORMATION


ITEM 1.  FINANCIAL STATEMENTS

                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-B
                             COMBINED BALANCE SHEETS
                                   (Unaudited)

                                     ASSETS

                                                June 30,       December 31,
                                                  1999            1998
                                               ----------      ------------

CURRENT ASSETS:
   Cash and cash equivalents                    $  1,358          $ 20,930
   Accounts receivable:
      Oil and gas sales                           46,536            18,364
      General Partner (Note 2)                         -             6,814
                                                --------          --------
        Total current assets                    $ 47,894          $ 46,108

NET OIL AND GAS PROPERTIES, utilizing
   the successful efforts method                 270,964           275,445

DEFERRED CHARGE                                   74,248            74,248
                                                --------          --------
                                                $393,106          $395,801
                                                ========          ========

                 LIABILITIES AND PARTNERS' CAPITAL (DEFICIT)

CURRENT LIABILITIES:
   Accounts payable                             $ 10,803          $ 24,273
                                                --------          --------
        Total current liabilities               $ 10,803          $ 24,273

ACCRUED LIABILITY                               $ 23,490          $ 23,490

PARTNERS' CAPITAL (DEFICIT):
   General Partner                             ($106,158)        ($107,999)
   Limited Partners, issued and
      outstanding, 11,958 units                  464,971           456,037
                                                --------          --------
        Total Partners' capital                 $358,813          $348,038
                                                --------          --------
                                                $393,106          $395,801
                                                ========          ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       2


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-B
                        COMBINED STATEMENTS OF OPERATIONS
                FOR THE THREE MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999               1998
                                               --------           --------

REVENUES:
   Oil and gas sales                            $58,914            $59,328
   Interest income                                   10                210
   Loss on sale of oil and gas
      properties                                      -           (    106)
                                                -------            -------
                                                $58,924            $59,432

COSTS AND EXPENSES:
   Lease operating                              $11,258            $13,188
   Production tax                                 3,672              3,608
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                 10,423             11,551
   General and administrative
      (Note 2)                                   13,789             12,875
                                                -------            -------
                                                $39,142            $41,222
                                                -------            -------

NET INCOME                                      $19,782            $18,210
                                                =======            =======
GENERAL PARTNER - NET INCOME                    $ 1,405            $ 1,362
                                                =======            =======
LIMITED PARTNERS - NET INCOME                   $18,377            $16,848
                                                =======            =======
NET INCOME per unit                             $  1.53            $  1.41
                                                =======            =======
UNITS OUTSTANDING                                11,958             11,958
                                                =======            =======


         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       3


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-B
                        COMBINED STATEMENTS OF OPERATIONS
                 FOR THE SIX MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)

                                                  1999               1998
                                               ---------          ---------

REVENUES:
   Oil and gas sales                            $130,296           $120,200
   Interest income                                    68                732
   Loss on sale of oil and gas
      properties                                       -          (     106)
                                                --------           --------
                                                $130,364           $120,826

COSTS AND EXPENSES:
   Lease operating                              $ 40,729           $ 29,009
   Production tax                                  7,687              6,930
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                  22,049             21,963
   General and administrative
      (Note 2)                                    35,886             33,967
                                                --------           --------
                                                $106,351           $ 91,869
                                                --------           --------

NET INCOME                                      $ 24,013           $ 28,957
                                                ========           ========
GENERAL PARTNER - NET INCOME                    $  2,079           $  2,290
                                                ========           ========
LIMITED PARTNERS - NET INCOME                   $ 21,934           $ 26,667
                                                ========           ========
NET INCOME per unit                             $   1.83           $   2.23
                                                ========           ========
UNITS OUTSTANDING                                 11,958             11,958
                                                ========           ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       4


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-B
                        COMBINED STATEMENTS OF CASH FLOWS
                 FOR THE SIX MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)


                                                 1999               1998
                                               -------           ---------
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net income                                  $24,013            $ 28,957
   Adjustments to reconcile net
      income to net cash provided
      by operating activities:
      Depreciation, depletion, and
        amortization of oil and gas
        properties                              22,049              21,963
      Loss on sale of oil and gas
        properties                                   -                 106
      (Increase) decrease in accounts
        receivable - oil and gas sales        ( 28,172)             17,140
      Decrease in accounts receivable -
        General Partner                          6,814                   -
      Decrease in accounts payable            ( 13,470)          (   4,432)
                                               -------            --------
Net cash provided by operating
   activities                                  $11,234            $ 63,734
                                               -------            --------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Capital expenditures                       ($17,824)          ($    105)
   Proceeds from sale of oil and gas
      properties                                   256                   -
                                               -------            --------
Net cash used by investing
   activities                                 ($17,568)          ($    105)
                                               -------            --------

CASH FLOWS FROM FINANCING ACTIVITIES:
   Cash distributions                         ($13,238)          ($109,586)
                                               -------            --------
Net cash used by financing activities         ($13,238)          ($109,586)
                                               -------            --------

NET DECREASE IN CASH AND CASH
   EQUIVALENTS                                ($19,572)          ($ 45,957)

CASH AND CASH EQUIVALENTS AT
   BEGINNING OF PERIOD                          20,930              77,028
                                               -------            --------
CASH AND CASH EQUIVALENTS AT
   END OF PERIOD                               $ 1,358            $ 31,071
                                               =======            ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       5


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-C
                             COMBINED BALANCE SHEETS
                                   (Unaudited)

                                     ASSETS

                                                June 30,       December 31,
                                                  1999            1998
                                              -----------      ------------

CURRENT ASSETS:
   Cash and cash equivalents                    $ 32,891          $ 33,065
   Accounts receivable:
      Oil and gas sales                           71,914            51,790
      General Partner (Note 2)                         -            18,767
                                                --------          --------
        Total current assets                    $104,805          $103,622

NET OIL AND GAS PROPERTIES, utilizing
   the successful efforts method                 165,833           175,640

DEFERRED CHARGE                                   80,059            80,059
                                                --------          --------
                                                $350,697          $359,321
                                                ========          ========

                 LIABILITIES AND PARTNERS' CAPITAL (DEFICIT)

CURRENT LIABILITIES:
   Accounts payable                             $ 12,500          $ 13,520
                                                --------          --------
        Total current liabilities               $ 12,500          $ 13,520

ACCRUED LIABILITY                               $ 12,927          $ 12,927

PARTNERS' CAPITAL (DEFICIT):
   General Partner                             ($ 96,455)        ($ 96,039)
   Limited Partners, issued and
      outstanding, 8,885 units                   421,725           428,913
                                                --------          --------
        Total Partners' capital                 $325,270          $332,874
                                                --------          --------
                                                $350,697          $359,321
                                                ========          ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       6


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-C
                        COMBINED STATEMENTS OF OPERATIONS
                FOR THE THREE MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999             1998
                                              ----------        ---------

REVENUES:
   Oil and gas sales                           $110,881          $95,699
   Interest income                                  135              703
   Loss on sale of oil and gas
      properties                                      -         (     20)
                                               --------          -------
                                               $111,016          $96,382

COSTS AND EXPENSES:
   Lease operating                             $ 21,516          $46,870
   Production tax                                 5,902            6,739
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                  6,778            5,618
   General and administrative
      (Note 2)                                   25,538           24,549
                                               --------          -------
                                               $ 59,734          $83,776
                                               --------          -------

NET INCOME                                     $ 51,282          $12,606
                                               ========          =======
GENERAL PARTNER - NET INCOME                   $  2,829          $   819
                                               ========          =======
LIMITED PARTNERS - NET INCOME                  $ 48,453          $11,787
                                               ========          =======
NET INCOME per unit                            $   5.45          $  1.33
                                               ========          =======
UNITS OUTSTANDING                                 8,885            8,885
                                               ========          =======


         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       7


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-C
                        COMBINED STATEMENTS OF OPERATIONS
                 FOR THE SIX MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999              1998
                                              ----------        ----------

REVENUES:
   Oil and gas sales                           $188,375          $282,095
   Interest income                                  338             1,990
   Loss on sale of oil and gas
      properties                                      -         (      20)
                                               --------          --------
                                               $188,713          $284,065

COSTS AND EXPENSES:
   Lease operating                             $ 60,499          $ 93,931
   Production tax                                10,506            17,076
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                 13,084            12,996
   General and administrative
      (Note 2)                                   56,920            55,161
                                               --------          --------
                                               $141,009          $179,164
                                               --------          --------

NET INCOME                                     $ 47,704          $104,901
                                               ========          ========
GENERAL PARTNER - NET INCOME                   $  2,892          $  5,665
                                               ========          ========
LIMITED PARTNERS - NET INCOME                  $ 44,812          $ 99,236
                                               ========          ========
NET INCOME per unit                            $   5.04          $  11.17
                                               ========          ========
UNITS OUTSTANDING                                 8,885             8,885
                                               ========          ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       8

                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-C
                        COMBINED STATEMENTS OF CASH FLOWS
                 FOR THE SIX MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)
                                                 1999               1998
                                               ---------          ---------
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net income                                   $47,704           $104,901
   Adjustments to reconcile net income
      to net cash provided by operating
      activities:
      Depreciation, depletion, and
        amortization of oil and gas
        properties                               13,084             12,996
      Loss on sale of oil and gas
        properties                                    -                 20
      (Increase) decrease in accounts
        receivable - oil and gas sales         ( 20,124)            47,944
      Decrease in accounts receivable -
        General Partner                          18,767                  -
      Decrease in accounts payable             (  1,020)         (   6,519)
                                                -------           --------
Net cash provided by operating
   activities                                   $58,411           $159,342
                                                -------           --------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Capital expenditures                        ($ 3,325)         ($     20)
   Proceeds from sale of oil and
      gas properties                                 48                  -
                                                -------           --------
Net cash used by investing activities          ($ 3,277)         ($     20)
                                                -------           --------

CASH FLOWS FROM FINANCING ACTIVITIES:
   Cash distributions                          ($55,308)         ($258,833)
                                                -------           --------
Net cash used by financing activities          ($55,308)         ($258,833)
                                                -------           --------

NET DECREASE IN CASH AND CASH
   EQUIVALENTS                                 ($   174)         ($ 99,511)

CASH AND CASH EQUIVALENTS AT
   BEGINNING OF PERIOD                           33,065            141,699
                                                -------           --------
CASH AND CASH EQUIVALENTS AT
   END OF PERIOD                                $32,891           $ 42,188
                                                =======           ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       9


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-D
                             COMBINED BALANCE SHEETS
                                   (Unaudited)

                                     ASSETS

                                              June 30,         December 31,
                                                1999              1998
                                             ----------        ------------

CURRENT ASSETS:
   Cash and cash equivalents                  $133,954            $167,361
   Accounts receivable:
      Oil and gas sales                        127,906             134,477
                                              --------            --------
        Total current assets                  $261,860            $301,838

NET OIL AND GAS PROPERTIES, utilizing
   the successful efforts method               576,449             605,793

DEFERRED CHARGE                                 66,062              66,062
                                              --------            --------
                                              $904,371            $973,693
                                              ========            ========

                 LIABILITIES AND PARTNERS' CAPITAL (DEFICIT)

CURRENT LIABILITIES:
   Accounts payable                           $ 10,766            $  9,270
   Gas imbalance payable                        43,521              43,521
                                              --------            --------
        Total current liabilities             $ 54,287            $ 52,791

ACCRUED LIABILITY                             $ 14,456            $ 14,456

PARTNERS' CAPITAL (DEFICIT):
   General Partner                           ($ 54,664)          ($ 53,161)
   Limited Partners, issued and
      outstanding, 7,195 units                 890,292             959,607
                                              --------            --------
        Total Partners' capital               $835,628            $906,446
                                              --------            --------
                                              $904,371            $973,693
                                              ========            ========

         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       10


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-D
                        COMBINED STATEMENTS OF OPERATIONS
                FOR THE THREE MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999              1998
                                              ----------        ----------

REVENUES:
   Oil and gas sales                           $190,167          $186,722
   Interest income                                1,174             3,307
   Gain on sale of oil and gas
      properties                                      -           108,746
                                               --------          --------
                                               $191,341          $298,775

COSTS AND EXPENSES:
   Lease operating                             $ 10,021          $ 26,529
   Production tax                                12,849            13,884
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                 12,744            11,703
   General and administrative
      (Note 2)                                   22,038            21,684
                                               --------          --------
                                               $ 57,652          $ 73,800
                                               --------          --------

NET INCOME                                     $133,689          $224,975
                                               ========          ========
GENERAL PARTNER - NET INCOME                   $ 21,662          $ 34,889
                                               ========          ========
LIMITED PARTNERS - NET INCOME                  $112,027          $190,086
                                               ========          ========
NET INCOME per unit                            $  15.57          $  26.42
                                               ========          ========
UNITS OUTSTANDING                                 7,195             7,195
                                               ========          ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       11


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-D
                        COMBINED STATEMENTS OF OPERATIONS
                 FOR THE SIX MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999              1998
                                              ---------         ----------

REVENUES:
   Oil and gas sales                           $322,393          $480,382
   Interest income                                2,580             6,088
   Gain on sale of oil and gas
      properties                                      -           255,796
                                               --------          --------
                                               $324,973          $742,266

COSTS AND EXPENSES:
   Lease operating                             $ 53,832          $ 57,471
   Production tax                                22,522            31,822
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                 30,056            27,588
   General and administrative
      (Note 2)                                   48,556            47,567
                                               --------          --------
                                               $154,966          $164,448
                                               --------          --------

NET INCOME                                     $170,007          $577,818
                                               ========          ========
GENERAL PARTNER - NET INCOME                   $ 29,322          $ 89,622
                                               ========          ========
LIMITED PARTNERS - NET INCOME                  $140,685          $488,196
                                               ========          ========
NET INCOME per unit                            $  19.55          $  67.85
                                               ========          ========
UNITS OUTSTANDING                                 7,195             7,195
                                               ========          ========


           The accompanying  condensed notes are an integral part of these
                     combined financial statements.


                                       12


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-D
                        COMBINED STATEMENTS OF CASH FLOWS
                 FOR THE SIX MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)


                                                  1999              1998
                                               ----------        ---------
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net income                                   $170,007          $577,818
   Adjustments to reconcile net
      income to net cash provided
      by operating activities:
      Depreciation, depletion, and
        amortization of oil and gas
        properties                                30,056            27,588
      Gain on sale of oil and gas
        properties                                     -         ( 255,796)
      Decrease in accounts receivable -
        oil and gas sales                          6,571           109,050
      Increase (decrease) in accounts
        payable                                    1,496         (  21,144)
                                                --------          --------
Net cash provided by operating
   activities                                   $208,130          $437,516
                                                --------          --------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Capital expenditures                        ($    712)        ($  1,857)
   Proceeds from sale of oil and
      gas properties                                   -           268,638
                                                --------          --------
Net cash provided (used) by
   investing activities                        ($    712)         $266,781
                                                --------          --------

CASH FLOWS FROM FINANCING ACTIVITIES:
   Cash distributions                          ($240,825)        ($686,991)
                                                --------          --------
Net cash used by financing activities          ($240,825)        ($686,991)
                                                --------          --------

NET INCREASE (DECREASE) IN CASH AND
   CASH EQUIVALENTS                            ($ 33,407)         $ 17,306

CASH AND CASH EQUIVALENTS AT
   BEGINNING OF PERIOD                           167,361           274,109
                                                --------          --------
CASH AND CASH EQUIVALENTS AT
   END OF PERIOD                                $133,954          $291,415
                                                ========          ========



         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       13


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-E
                             COMBINED BALANCE SHEETS
                                   (Unaudited)

                                     ASSETS

                                               June 30,        December 31,
                                                 1999             1998
                                             ------------      ------------

CURRENT ASSETS:
   Cash and cash equivalents                  $  534,714        $   12,003
   Accounts receivable:
      Oil and gas sales                          637,538           651,445
      General Partner (Note 2)                   675,000                 -
                                              ----------        ----------
        Total current assets                  $1,847,252        $  663,448

NET OIL AND GAS PROPERTIES, utilizing
   the successful efforts method               3,924,995         4,191,663

DEFERRED CHARGE                                  570,545           570,545
                                              ----------        ----------
                                              $6,342,792        $5,425,656
                                              ==========        ==========

                 LIABILITIES AND PARTNERS' CAPITAL (DEFICIT)

CURRENT LIABILITIES:
   Accounts payable                           $   71,415        $  209,486
   Gas imbalance payable                         115,808           115,808
                                              ----------        ----------
        Total current liabilities             $  187,223        $  325,294

ACCRUED LIABILITY                             $  151,490        $  151,490

PARTNERS' CAPITAL (DEFICIT):
   General Partner                           ($  112,305)      ($  232,100)
   Limited Partners, issued and
      outstanding, 41,839 units                6,116,384         5,180,972
                                              ----------        ----------
        Total Partners' capital               $6,004,079        $4,948,872
                                              ----------        ----------
                                              $6,342,792        $5,425,656
                                              ==========        ==========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       14


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-E
                        COMBINED STATEMENTS OF OPERATIONS
                FOR THE THREE MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999              1998
                                              ----------       -----------

REVENUES:
   Oil and gas sales                           $  949,135      $1,026,695
   Interest income                                  2,832          12,920
   Gain on sale of oil and gas
      properties                                        -         489,455
   Insurance settlement                           675,000               -
                                               ----------      ----------
                                               $1,626,967      $1,529,070

COSTS AND EXPENSES:
   Lease operating                             $  199,360      $  241,285
   Production tax                                  59,534          70,829
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                  139,099         159,710
   General and administrative
      (Note 2)                                    124,059         122,432
                                               ----------      ----------
                                               $  522,052      $  594,256
                                               ----------      ----------

NET INCOME                                     $1,104,915      $  934,814
                                               ==========      ==========
GENERAL PARTNER - NET INCOME                   $  184,787      $  160,644
                                               ==========      ==========
LIMITED PARTNERS - NET INCOME                  $  920,128      $  774,170
                                               ==========      ==========
NET INCOME per unit                            $    21.99      $    18.51
                                               ==========      ==========
UNITS OUTSTANDING                                  41,839          41,839
                                               ==========      ==========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       15


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-E
                        COMBINED STATEMENTS OF OPERATIONS
                 FOR THE SIX MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)

                                                  1999             1998
                                              -----------      -----------

REVENUES:
   Oil and gas sales                          $1,654,037       $2,092,070
   Interest income                                 3,169           22,299
   Gain on sale of oil and gas
      properties                                       -        1,149,051
   Insurance settlement                          675,000                -
                                              ----------       ----------
                                              $2,332,206       $3,263,420

COSTS AND EXPENSES:
   Lease operating                            $  447,730       $  456,139
   Production tax                                109,615          144,939
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                 276,642          312,718
   General and administrative
      (Note 2)                                   278,611          272,850
                                              ----------       ----------
                                              $1,112,598       $1,186,646
                                              ----------       ----------

NET INCOME                                    $1,219,608       $2,076,774
                                              ==========       ==========
GENERAL PARTNER - NET INCOME                  $  221,196       $  351,952
                                              ==========       ==========
LIMITED PARTNERS - NET INCOME                 $  998,412       $1,724,822
                                              ==========       ==========
NET INCOME per unit                           $    23.86       $    41.23
                                              ==========       ==========
UNITS OUTSTANDING                                 41,839           41,839
                                              ==========       ==========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       16


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-E
                        COMBINED STATEMENTS OF CASH FLOWS
                 FOR THE SIX MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999              1998
                                              ----------        ----------
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net income                                 $1,219,608        $2,076,774
   Adjustments to reconcile net
      income to net cash provided
      by operating activities:
      Depreciation, depletion, and
        amortization of oil and gas
        properties                               276,642           312,718
      Gain on sale of oil and gas
        properties                                     -       ( 1,149,051)
      Decrease in accounts receivable -
        oil and gas sales                         13,907           367,750
      Increase in accounts receivable -
        General Partner                      (   675,000)                -
      Decrease in accounts receivable -
        other                                          -            69,917
      Decrease in accounts payable           (   138,071)      (   178,137)
                                              ----------        ----------
Net cash provided by operating
   activities                                 $  697,086        $1,499,971
                                              ----------        ----------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Capital expenditures                      ($   10,537)      ($    5,120)
   Proceeds from sale of oil and
      gas properties                                 563         1,279,412
                                              ----------        ----------
Net cash provided (used) by
   investing activities                      ($    9,974)       $1,274,292
                                              ----------        ----------

CASH FLOWS FROM FINANCING ACTIVITIES:
   Cash distributions                        ($  164,401)      ($2,476,183)
                                              ----------        ----------
Net cash used by financing activities        ($  164,401)      ($2,476,183)
                                              ----------        ----------

NET INCREASE IN CASH AND CASH
   EQUIVALENTS                                $  522,711        $  298,080

CASH AND CASH EQUIVALENTS AT
   BEGINNING OF PERIOD                            12,003           827,775
                                              ----------        ----------
CASH AND CASH EQUIVALENTS AT
   END OF PERIOD                              $  534,714        $1,125,855
                                              ==========        ==========

         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       17


                GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F
               GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-F
                             COMBINED BALANCE SHEETS
                                   (Unaudited)

                                     ASSETS

                                               June 30,        December 31,
                                                 1999             1998
                                             ------------      ------------

CURRENT ASSETS:
   Cash and cash equivalents                  $    1,649        $    5,457
   Accounts receivable:
      Oil and gas sales                          196,118           195,444
      General Partner (Note 2)                   472,500                 -
                                              ----------        ----------
        Total current assets                  $  670,267        $  200,901

NET OIL AND GAS PROPERTIES, utilizing
   the successful efforts method               1,232,854         1,311,368

DEFERRED CHARGE                                  346,704           346,704
                                              ----------        ----------
                                              $2,249,825        $1,858,973
                                              ==========        ==========

                 LIABILITIES AND PARTNERS' CAPITAL (DEFICIT)

CURRENT LIABILITIES:
   Accounts payable                           $  201,861        $  406,740
   Gas imbalance payable                          38,738            38,738
                                              ----------        ----------
        Total current liabilities             $  240,599        $  445,478

ACCRUED LIABILITY                             $  109,153        $  109,153

PARTNERS' CAPITAL (DEFICIT):
   General Partner                            $    6,482       ($   94,547)
   Limited Partners, issued and
      outstanding, 14,321 units                1,893,591         1,398,889
                                              ----------        ----------
        Total Partners' capital               $1,900,073        $1,304,342
                                              ----------        ----------
                                              $2,249,825        $1,858,973
                                              ==========        ==========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       18


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-F
                        COMBINED STATEMENTS OF OPERATIONS
                FOR THE THREE MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999              1998
                                              ----------        ----------

REVENUES:
   Oil and gas sales                           $296,738          $320,633
   Interest income                                  751             4,545
   Gain on sale of oil and
      gas properties                                  -            45,507
   Insurance settlement                         472,500                 -
                                               --------          --------
                                               $769,989          $370,685

COSTS AND EXPENSES:
   Lease operating                             $ 84,253          $118,870
   Production tax                                17,161            20,716
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                 44,513            47,513
   General and administrative
      (Note 2)                                   42,987            42,403
                                               --------          --------
                                               $188,914          $229,502
                                               --------          --------

NET INCOME                                     $581,075          $141,183
                                               ========          ========
GENERAL PARTNER - NET INCOME                   $ 93,281          $ 27,147
                                               ========          ========
LIMITED PARTNERS - NET INCOME                  $487,794          $114,036
                                               ========          ========
NET INCOME per unit                            $  34.06          $   7.96
                                               ========          ========
UNITS OUTSTANDING                                14,321            14,321
                                               ========          ========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.


                                       19


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-F
                        COMBINED STATEMENTS OF OPERATIONS
                 FOR THE SIX MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)

                                                 1999               1998
                                              ----------        -----------

REVENUES:
   Oil and gas sales                           $511,194          $  686,935
   Interest income                                  761               7,719
   Gain on sale of oil and
      gas properties                                  -             333,266
   Insurance settlement                         472,500                   -
                                               --------          ----------
                                               $984,455          $1,027,920

COSTS AND EXPENSES:
   Lease operating                             $177,452          $  216,106
   Production tax                                31,171              44,390
   Depreciation, depletion, and
      amortization of oil and gas
      properties                                 84,166              95,892
   General and administrative
      (Note 2)                                   95,935              93,876
                                               --------          ----------
                                               $388,724          $  450,264
                                               --------          ----------

NET INCOME                                     $595,731          $  577,656
                                               ========          ==========
GENERAL PARTNER - NET INCOME                   $101,029          $   98,915
                                               ========          ==========
LIMITED PARTNERS - NET INCOME                  $494,702          $  478,741
                                               ========          ==========
NET INCOME per unit                            $  34.54          $    33.43
                                               ========          ==========
UNITS OUTSTANDING                                14,321              14,321
                                               ========          ==========


         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       20


                  GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F
                GEODYNE ENERGY INCOME PRODUCTION PARTNERSHIP I-F
                        COMBINED STATEMENTS OF CASH FLOWS
                 FOR THE SIX MONTHS ENDED JUNE 30, 1999 AND 1998
                                   (Unaudited)

                                                1999               1998
                                              --------           ---------
CASH FLOWS FROM OPERATING ACTIVITIES:
   Net income                                 $595,731            $577,656
   Adjustments to reconcile net
      income to net cash provided
      by operating activities:
      Depreciation, depletion, and
        amortization of oil and gas
        properties                              84,166              95,892
      Gain on sale of oil and gas
        properties                                   -           ( 333,266)
      (Increase) decrease in accounts
        receivable - oil and gas sales       (     674)            102,750
      Increase in accounts receivable -
        General Partner                      ( 472,500)                  -
      Decrease in accounts receivable -
        other                                        -              48,942
      Decrease in accounts payable           ( 204,879)          (  15,282)
                                              --------            --------
Net cash provided by operating
   activities                                 $  1,844            $476,692
                                              --------            --------

CASH FLOWS FROM INVESTING ACTIVITIES:
   Capital expenditures                      ($  7,333)          ($  2,180)
   Proceeds from sale of oil and
      gas properties                             1,681             435,797
                                              --------            --------
Net cash provided (used) by
   investing activities                      ($  5,652)           $433,617
                                              --------            --------

CASH FLOWS FROM FINANCING ACTIVITIES:
   Cash distributions                         $      -           ($885,693)
                                              --------            --------
Net cash used by financing activities         $      -           ($885,693)
                                              --------            --------

NET INCREASE (DECREASE) IN CASH AND
   CASH EQUIVALENTS                          ($  3,808)           $ 24,616

CASH AND CASH EQUIVALENTS AT
   BEGINNING OF PERIOD                           5,457             251,220
                                              --------            --------
CASH AND CASH EQUIVALENTS AT
   END OF PERIOD                              $  1,649            $275,836
                                              ========            ========

         The accompanying condensed notes are an integral part of these
                         combined financial statements.



                                       21


              GEODYNE ENERGY INCOME PROGRAM I LIMITED PARTNERSHIPS
              CONDENSED NOTES TO THE COMBINED FINANCIAL STATEMENTS
                                  JUNE 30, 1999
                                   (Unaudited)


1.    ACCOUNTING POLICIES
      -------------------

      The combined  balance sheets as of June 30, 1999,  combined  statements of
      operations  for the three and six months ended June 30, 1999 and 1998, and
      combined  statements  of cash flows for the six months ended June 30, 1999
      and 1998 have been  prepared  by  Geodyne  Resources,  Inc.,  the  General
      Partner  of  the  limited   partnerships,   without  audit.  Each  limited
      partnership  is a general  partner in the related  Geodyne  Energy  Income
      Production  Partnership  in which Geodyne  Resources,  Inc.  serves as the
      managing partner.  Unless the context indicates otherwise,  all references
      to a  "Partnership"  or the  "Partnerships"  are references to the limited
      partnership and its related production partnership,  collectively, and all
      references to the "General  Partner" are references to the general partner
      of the limited  partnerships  and the managing  partner of the  production
      partnerships,  collectively.  In the opinion of  management  the financial
      statements referred to above include all necessary adjustments, consisting
      of normal recurring adjustments,  to present fairly the combined financial
      position at June 30, 1999,  the  combined  results of  operations  for the
      three and six months ended June 30, 1999 and 1998,  and the combined  cash
      flows for the six months ended June 30, 1999 and 1998.

      Information  and  footnote  disclosures  normally  included  in  financial
      statements  prepared in  accordance  with  generally  accepted  accounting
      principles  have been  condensed  or  omitted.  The  accompanying  interim
      financial  statements should be read in conjunction with the Partnerships'
      Annual Report on Form 10-K filed for the year ended December 31, 1998. The
      results  of  operations  for  the  period  ended  June  30,  1999  are not
      necessarily indicative of the results to be expected for the full year.

      The  Limited  Partners'  net  income  or loss per unit is based  upon each
      $1,000 initial capital contribution.


                                       22


      OIL AND GAS PROPERTIES
      ----------------------

      The  Partnerships  follow the successful  efforts method of accounting for
      their oil and gas properties.  Under the successful  efforts  method,  the
      Partnerships  capitalize all property  acquisition  costs and  development
      costs incurred in connection  with the further  development of oil and gas
      reserves.  Property  acquisition  costs  include  costs  incurred  by  the
      Partnerships  or the  General  Partner  to acquire  producing  properties,
      including  related  title  insurance or  examination  costs,  commissions,
      engineering, legal and accounting fees, and similar costs directly related
      to the acquisitions,  plus an allocated portion,  of the General Partner's
      property  screening  costs.  The acquisition  cost to the  Partnerships of
      properties  acquired by the General Partner is adjusted to reflect the net
      cash results of  operations,  including  interest  incurred to finance the
      acquisition, for the period of time the properties are held by the General
      Partner prior to their transfer to the Partnerships.  Leasehold impairment
      is recognized based upon an individual property assessment and exploratory
      experience.  Upon discovery of commercial  reserves,  leasehold  costs are
      transferred to producing properties.

      Depletion of the costs of producing oil and gas  properties,  amortization
      of related intangible  drilling and development costs, and depreciation of
      tangible lease and well  equipment are computed on the  unit-of-production
      method.  The  Partnerships'  depletion,   depreciation,  and  amortization
      includes  estimated  dismantlement and abandonment costs, net of estimated
      salvage value.

      When complete units of depreciable property are retired or sold, the asset
      cost and related accumulated  depreciation are eliminated with any gain or
      loss  reflected in income.  When less than complete  units of  depreciable
      property  are retired or sold,  the  proceeds  are credited to oil and gas
      properties.


                                       23



2.    TRANSACTIONS WITH RELATED PARTIES
      ---------------------------------

      The Partnerships'  partnership agreements provide for reimbursement to the
      General Partner for all direct general and administrative expenses and for
      the general and  administrative  overhead  applicable to the  Partnerships
      based on an allocation of actual costs  incurred.  During the three months
      ended  June 30,  1999 the  following  payments  were  made to the  General
      Partner or its affiliates by the Partnerships:

                                Direct General           Administrative
            Partnership        and Administrative           Overhead
            -----------        -------------------       ---------------
               I-B                  $2,476                   $ 11,313
               I-C                   2,156                     23,382
               I-D                   2,052                     19,986
               I-E                   7,839                    116,220
               I-F                   3,207                     39,780

      During the six months ended June 30, 1999 the following payments were made
      to the General Partner or its affiliates by the Partnerships:

                                 Direct General          Administrative
            Partnership        and Administrative           Overhead
            -----------        -------------------       ---------------
               I-B                  $13,260                  $ 22,626
               I-C                   10,156                    46,764
               I-D                    8,584                    39,972
               I-E                   46,171                   232,440
               I-F                   16,375                    79,560


      Affiliates  of the  Partnerships  operate  certain  of  the  Partnerships'
      properties and their policy is to bill the  Partnerships for all customary
      charges and cost reimbursements associated with their activities.

      The accounts receivable - general partner at December 31, 1998 for the I-B
      and I-C  Partnerships  represent  refunds  due for  indirect  general  and
      administrative  expenses as a result of expense limitations imposed by the
      Partnership  Agreements.  This  receivable was collected  during the first
      quarter of 1999.

      The accounts receivable - general partner at June 30, 1999 for the I-E and
      I-F Partnerships represent proceeds from an insurance settlement discussed
      below  in  Liquidity  and  Capital   Resources.   Such   receivables  were
      subsequently   collected   and  will  be  included  in  the  I-E  and  I-F
      Partnerships' August 1999 cash distributions.




                                       24


ITEM 2.     MANAGEMENT'S  DISCUSSION  AND ANALYSIS OF FINANCIAL  CONDITION AND
            RESULTS OF OPERATIONS

USE OF FORWARD-LOOKING STATEMENTS AND ESTIMATES
- -----------------------------------------------

      This Quarterly Report contains  certain  forward-looking  statements.  The
      words "anticipate",  "believe",  "expect",  "plan", "intend",  "estimate",
      "project", "could", "may" and similar expressions are intended to identify
      forward-looking  statements.  Such statements reflect management's current
      views  with  respect  to future  events and  financial  performance.  This
      Quarterly Report also includes certain information,  which is, or is based
      upon,  estimates  and  assumptions.  Such  estimates and  assumptions  are
      management's  efforts to accurately reflect the condition and operation of
      the Partnerships.

      Use of  forward-looking  statements and estimates and assumptions  involve
      risks  and  uncertainties  which  include,  but are not  limited  to,  the
      volatility of oil and gas prices, the uncertainty of reserve  information,
      the operating risk associated  with oil and gas properties  (including the
      risk of personal injury,  death,  property  damage,  damage to the well or
      producing  reservoir,  environmental  contamination,  and other  operating
      risks), the prospect of changing tax and regulatory laws, the availability
      and capacity of  processing  and  transportation  facilities,  the general
      economic climate,  the supply and price of foreign imports of oil and gas,
      the level of consumer  product demand,  and the price and  availability of
      alternative  fuels.  Should  one or more of these  risks or  uncertainties
      occur or should  estimates  or  underlying  assumptions  prove  incorrect,
      actual  conditions or results may vary materially and adversely from those
      stated, anticipated, believed, estimated, and otherwise indicated.

GENERAL
- -------

      The  Partnerships  are engaged in the business of acquiring  and operating
      producing oil and gas properties located in the continental United States.
      In general, a Partnership acquired producing properties and did not engage
      in  development  drilling  or  enhanced  recovery  projects,  except as an
      incidental  part of the management of the producing  properties  acquired.
      Therefore,  the  economic  life  of  each  Partnership,  and  its  related
      Production Partnership, is limited to the period of time required to fully
      produce its acquired oil and gas  reserves.  The net proceeds from the oil
      and gas operations are distributed to the Limited Partners and the General
      Partner  in  accordance  with the terms of the  Partnerships'  partnership
      agreements.



                                       25


LIQUIDITY AND CAPITAL RESOURCES
- -------------------------------

      The Partnerships began operations and investors were assigned their rights
      as Limited Partners,  having made capital contributions in the amounts and
      on the dates set forth below:

                                                           Limited
                                   Date of              Partner Capital
              Partnership        Activation              Contributions
              -----------     ------------------        ---------------

                 I-B          July 12, 1985               $11,957,700
                 I-C          December 20, 1985             8,884,900
                 I-D          March 4, 1986                 7,194,700
                 I-E          September 10, 1986           41,839,400
                 I-F          December 16, 1986            14,320,900

      In general,  the amount of funds  available for  acquisition  of producing
      properties was equal to the capital contributions of the Limited Partners,
      less 15% for sales  commissions and  organization and management fees. All
      of the Partnerships have fully invested their capital contributions.

      Net proceeds from the  operations  less  necessary  operating  capital are
      distributed to the Limited Partners on a quarterly basis. Revenues and net
      proceeds of a Partnership  are largely  dependent  upon the volumes of oil
      and gas sold and the  prices  received  for  such oil and gas.  While  the
      General  Partner cannot predict  future  pricing  trends,  it believes the
      working  capital  available  as of June  30,  1999  and  the  net  revenue
      generated from future operations will provide  sufficient  working capital
      to meet current and future obligations.

      During the six months  ended June 30, 1999,  the I-B and I-C  Partnerships
      invested   approximately   $18,000  and  $3,000,   respectively,   in  the
      recompletion  of the Unit 30-11 #1 well located in Jefferson Davis County,
      Mississippi   in  order  to  improve  the  recovery  of   reserves.   This
      recompletion  was successful.  The I-B and I-C  Partnerships  own 2.5% and
      0.5% working interests, respectively, in this well.

      In August 1999, the I-E and I-F Partnerships received insurance settlement
      proceeds  amounts of $675,000 and  $472,500,  respectively,  for the costs
      incurred to drill the State Lease 8191 No. 4 well in St.  Bernard  Parish,
      Louisiana  for the purpose of  relieving  pressure  in another  well which
      suffered a blowout during a workover attempt.  This new well was completed
      as a producing gas well in 1998.  The insurance  proceeds  amounts will be
      included in the Partnerships' August 1999 cash distributions.



                                       26


      Pursuant to the terms of the Partnership Agreements, the Partnerships will
      terminate  on December  31,  1999.  However,  the  Partnership  Agreements
      provide that the General  Partner may extend the term of each  Partnership
      for up to five periods of two years each. As of the date of this Quarterly
      Report the  General  Partner  currently  intends to extend the term of the
      I-D, I-E, and I-F  Partnerships  for the first two year extension  period.
      With respect to the I-B and I-C Partnerships,  it is the General Partner's
      current  intent to let these  Partnerships  terminate on December 31, 1999
      pursuant to the terms of their Partnership Agreements.

      The General Partner will,  however,  over the next several months evaluate
      all of the Partnerships' operations and then make a final determination as
      to whether to extend any of their terms.  It is  anticipated  that a final
      decision will be made during the fourth quarter of 1999.


RESULTS OF OPERATIONS
- ---------------------

      GENERAL DISCUSSION

      The following  general  discussion  should be read in conjunction with the
      analysis  of results of  operations  provided  below.  The most  important
      variable  affecting the Partnerships'  revenues is the prices received for
      the  sale of oil and gas.  Due to the  volatility  of oil and gas  prices,
      forecasting  future prices is subject to great uncertainty and inaccuracy.
      Substantially  all of the Partnerships' gas reserves are being sold in the
      "spot market".  Prices on the spot market are subject to wide seasonal and
      regional pricing  fluctuations due to the highly competitive nature of the
      spot market. Such spot market sales are generally short-term in nature and
      are dependent upon the obtaining of  transportation  services  provided by
      pipelines.  In addition,  crude oil prices were  recently at or near their
      lowest  level in the past decade due  primarily  to the global  surplus of
      crude oil.  However,  as of the date of this  Quarterly  Report oil prices
      have rebounded  primarily due to a decrease in the global oil surplus as a
      result of production  curtailments by several major oil producing nations.
      Management is unable to predict whether future oil and gas prices will (i)
      stabilize, (ii) increase, or (iii) decrease.




                                       27


      I-B PARTNERSHIP

      THREE MONTHS  ENDED JUNE 30, 1999  COMPARED TO THE THREE MONTHS ENDED JUNE
      30, 1998.

                                                 Three Months Ended June 30,
                                                 ---------------------------
                                                    1999            1998
                                                  -------          -------
      Oil and gas sales                           $58,914          $59,328
      Oil and gas production expenses             $14,930          $16,796
      Barrels produced                                373              265
      Mcf produced                                 29,215           28,541
      Average price/Bbl                           $ 16.69          $ 11.15
      Average price/Mcf                           $  1.80          $  1.98

      As shown in the table above, total oil and gas sales decreased $414 (0.7%)
      for the three  months  ended June 30, 1999 as compared to the three months
      ended June 30, 1998. Of this decrease, approximately $5,000 was related to
      a decrease in the average price of gas sold,  which decrease was partially
      offset by  increases  of  approximately  $1,200 and $1,300,  respectively,
      related to  increases  in  volumes  of oil and gas sold and  approximately
      $2,000 related to an increase in the average price of oil sold. Volumes of
      oil and gas sold increased 108 barrels and 674 Mcf, respectively,  for the
      three  months  ended June 30, 1999 as compared to the three  months  ended
      June 30, 1998.  Average oil prices  increased to $16.69 per barrel for the
      three  months  ended  June 30,  1999 from  $11.15 per barrel for the three
      months ended June 30, 1998.  Average gas prices decreased to $1.80 per Mcf
      for the three  months ended June 30, 1999 from $1.98 per Mcf for the three
      months ended June 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production taxes) decreased $1,866 (11.1%) for the three months ended June
      30,  1999 as  compared  to the three  months  ended  June 30,  1998.  This
      decrease  was  primarily  due to a  decrease  in  repair  and  maintenance
      expenses  incurred on two significant  wells during the three months ended
      June 30, 1999 as compared to the three months  ended June 30,  1998.  As a
      percentage of oil and gas sales, these expenses decreased to 25.3% for the
      three  months  ended June 30, 1999 from 28.3% for the three  months  ended
      June 30, 1998.  This  percentage  decrease was primarily due to the dollar
      decrease  in oil and gas  production  expenses  and  the  increase  in the
      average price of oil sold.




                                       28


      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      decreased  $1,128  (9.8%)  for the three  months  ended  June 30,  1999 as
      compared to the three months ended June 30, 1998.  As a percentage  of oil
      and gas sales,  this expense decreased to 17.7% for the three months ended
      June 30, 1999 from 19.5% for the three months ended June 30, 1998.

      General and  administrative  expenses  increased $914 (7.1%) for the three
      months  ended June 30, 1999 as compared to the three months ended June 30,
      1998. As a percentage of oil and gas sales,  these  expenses  increased to
      23.4% for the three  months  ended June 30,  1999 from 21.7% for the three
      months ended June 30, 1998.

      SIX MONTHS  ENDED JUNE 30, 1999  COMPARED TO THE SIX MONTHS ENDED JUNE 30,
      1998.

                                                  Six Months Ended June 30,
                                                  -------------------------
                                                   1999              1998
                                                 --------          --------
      Oil and gas sales                          $130,296          $120,200
      Oil and gas production expenses            $ 48,416          $ 35,939
      Barrels produced                              1,007               736
      Mcf produced                                 70,425            52,879
      Average price/Bbl                          $  12.48          $  13.17
      Average price/Mcf                          $   1.67          $   2.09

      As shown in the table  above,  total oil and gas sales  increased  $10,096
      (8.4%)  for the six  months  ended June 30,  1999 as  compared  to the six
      months ended June 30, 1998.  Of this  increase,  approximately  $4,000 and
      $37,000, respectively, were related to increases in volumes of oil and gas
      sold, which increases were partially offset by a decrease of approximately
      $30,000 related to a decrease in the average price of gas sold. Volumes of
      oil and gas sold increased 271 barrels and 17,546 Mcf,  respectively,  for
      the six months  ended June 30, 1999 as  compared  to the six months  ended
      June 30, 1998.  The increase in volumes of gas sold was  primarily  due to
      (i) the  successful  drilling and  completion of one well in late 1998 and
      another  well in  early  1999  and (ii)  the  successful  workover  of one
      significant  well in  late  1998 in  order  to  improve  the  recovery  of
      reserves.  The I-B Partnership has an overriding  royalty interest in both
      of the new  wells.  Average  oil and gas  prices  decreased  to $12.48 per
      barrel and $1.67 per Mcf, respectively,  for the six months ended June 30,
      1999 from $13.17 per barrel and $2.09 per Mcf,  respectively,  for the six
      months ended June 30, 1998.



                                       29


      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes) increased $12,477 (34.7%) for the six months ended June
      30, 1999 as compared to the six months ended June 30, 1998.  This increase
      was primarily due to workover  expenses  incurred on one significant  well
      during the six months ended June 30, 1999 in order to improve the recovery
      of  reserves.  As a  percentage  of oil  and  gas  sales,  these  expenses
      increased  to 37.2% for the six months  ended June 30, 1999 from 29.9% for
      the six months ended June 30, 1998. This percentage increase was primarily
      due to the  decreases  in the  average  prices of oil and gas sold and the
      dollar increase in oil and gas production expenses.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      increased $86 (0.4%) for the six months ended June 30, 1999 as compared to
      the six months ended June 30, 1998.  As a percentage of oil and gas sales,
      this  expense  decreased  to 16.9% for the six months  ended June 30, 1999
      from 18.3% for the six months ended June 30, 1998.

      General and  administrative  expenses  increased $1,919 (5.6%) for the six
      months  ended June 30, 1999 as  compared to the six months  ended June 30,
      1998. As a percentage of oil and gas sales,  these  expenses  decreased to
      27.5% for the six months ended June 30, 1999 from 28.3% for the six months
      ended June 30, 1998.

      The Limited  Partners have received  cash  distributions  through June 30,
      1999  totaling   $6,740,527  or  56.37%  of  Limited   Partners'   capital
      contributions.

      I-C PARTNERSHIP

      THREE MONTHS  ENDED JUNE 30, 1999  COMPARED TO THE THREE MONTHS ENDED JUNE
      30, 1998.

                                                 Three Months Ended June 30,
                                                 ---------------------------
                                                     1999           1998
                                                  --------         -------
      Oil and gas sales                           $110,881         $95,699
      Oil and gas production expenses             $ 27,418         $53,609
      Barrels produced                               4,355           3,143
      Mcf produced                                  23,457          31,455
      Average price/Bbl                           $  14.70         $ 11.45
      Average price/Mcf                           $   2.00         $  1.90

      As shown in the table  above,  total oil and gas sales  increased  $15,182
      (15.9%) for the three  months ended June 30, 1999 as compared to the three
      months ended June 30, 1998. Of this  increase,  approximately  $14,000 was
      related to an  increase in volumes of oil sold and  approximately  $14,000
      and $2,000, respectively, were related to increases



                                       30


      in the average prices of oil and gas sold,  which increases were partially
      offset by a decrease  of  approximately  $15,000  related to a decrease in
      volumes  of gas sold.  Volumes of oil sold  increased  1,212  barrels  and
      volumes of gas sold  decreased  7,998 Mcf for the three  months ended June
      30, 1999 as compared to the three months ended June 30, 1998. The increase
      in  volumes  of oil sold was  primarily  due to the sale of oil on several
      wells which had  previously  been  curtailed due to low oil prices,  which
      increase  was  partially   offset  by  production   difficulties   on  one
      significant well. The decrease in volumes of gas sold was primarily due to
      production  difficulties  on one  significant  well.  Average  oil and gas
      prices increased to $14.70 per barrel and $2.00 per Mcf, respectively, for
      the three  months ended June 30, 1999 from $11.45 per barrel and $1.90 per
      Mcf, respectively, for the three months ended June 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  decreased  $26,191  (48.9%) for the three months ended
      June 30, 1999 as compared to the three months  ended June 30,  1998.  This
      decrease was  primarily  due to (i) a negative  adjustment of prior period
      lease  operating  expenses  made by the operator on one  significant  well
      during  the  three  months  ended  June  30,  1999  and  (ii)  repair  and
      maintenance  expenses  incurred on one  significant  well during the three
      months ended June 30, 1998.  As a percentage  of oil and gas sales,  these
      expenses  decreased to 24.7% for the three months ended June 30, 1999 from
      56.0% for the three months ended June 30, 1998. This  percentage  decrease
      was  primarily  due to the  dollar  decrease  in oil  and  gas  production
      expenses and the increases in the average prices of oil and gas sold.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      increased  $1,160  (20.6%)  for the three  months  ended June 30,  1999 as
      compared  to the three  months  ended June 30,  1998.  This  increase  was
      primarily  due  to the  increase  in  volumes  of oil  sold  and  downward
      revisions in the  estimates of remaining  oil and gas reserves at December
      31, 1998. As a percentage of oil and gas sales,  this expense increased to
      6.1% for the  three  months  ended  June 30,  1999 from 5.9% for the three
      months ended June 30, 1998.

      General and  administrative  expenses  increased $989 (4.0%) for the three
      months  ended June 30, 1999 as compared to the three months ended June 30,
      1998. As a percentage of oil and gas sales,  these  expenses  decreased to
      23.0% for the three  months  ended June 30,  1999 from 25.7% for the three
      months ended June 30, 1998. This percentage  decrease was primarily due to
      the increase in oil and gas sales.




                                       31


      SIX MONTHS  ENDED JUNE 30, 1999  COMPARED TO THE SIX MONTHS ENDED JUNE 30,
      1998.

                                                  Six Months Ended June 30,
                                                  -------------------------
                                                   1999              1998
                                                 --------          --------
      Oil and gas sales                          $188,375          $282,095
      Oil and gas production expenses            $ 71,005          $111,007
      Barrels produced                              7,618             7,382
      Mcf produced                                 50,023            72,092
      Average price/Bbl                          $  12.83          $  12.45
      Average price/Mcf                          $   1.81          $   2.64

      As shown in the table  above,  total oil and gas sales  decreased  $93,720
      (33.2%)  for the six months  ended June 30,  1999 as  compared  to the six
      months ended June 30, 1998. Of this  decrease,  approximately  $58,000 was
      related to a decrease in volumes of gas sold and approximately $41,000 was
      related to a decrease  in the  average  price of gas sold.  Volumes of oil
      sold  increased 236 barrels and volumes of gas sold  decreased  22,069 Mcf
      for the six months ended June 30, 1999 as compared to the six months ended
      June 30, 1998.  The decrease in volumes of gas sold was  primarily  due to
      production  difficulties  on one  significant  well.  Average  oil  prices
      increased to $12.83 per barrel for the six months ended June 30, 1999 from
      $12.45  per barrel for the six months  ended June 30,  1998.  Average  gas
      prices  decreased  to $1.81 per Mcf for the six months ended June 30, 1999
      from $2.64 per Mcf for the six months ended June 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes) decreased $40,002 (36.0%) for the six months ended June
      30, 1999 as compared to the six months ended June 30, 1998.  This decrease
      was primarily due to (i) a refund of prior period ad valorem taxes made by
      the operator on one significant  well during the six months ended June 30,
      1999,  (ii) repair and  maintenance  expenses  incurred on one significant
      well  during the six  months  ended  June 30,  1998,  and (iii) a negative
      adjustment of prior period lease  operating  expenses made by the operator
      on one  significant  well during the six months ended June 30, 1999.  As a
      percentage of oil and gas sales, these expenses decreased to 37.7% for the
      six months  ended June 30,  1999 from 39.4% for the six months  ended June
      30,  1998.  This  percentage  decrease  was  primarily  due to the  dollar
      decrease in oil and gas production expenses,  which decrease was partially
      offset by the decrease in the average price of gas sold.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      increased $88 (0.7%) for the six months ended June 30, 1999 as compared to
      the six months ended June 30, 1998.  As a percentage of oil and gas sales,
      this expense



                                       32


      increased to 6.9% for the six months ended June 30, 1999 from 4.6% for the
      six months ended June 30, 1998. This percentage increase was primarily due
      to the decrease in the average price of gas sold.

      General and  administrative  expenses  increased $1,759 (3.2%) for the six
      months  ended June 30, 1999 as  compared to the six months  ended June 30,
      1998. As a percentage of oil and gas sales,  these  expenses  increased to
      30.2% for the six months ended June 30, 1999 from 19.6% for the six months
      ended June 30, 1998.  This  percentage  increase was  primarily due to the
      decrease in oil and gas sales.

      The Limited  Partners have received  cash  distributions  through June 30,
      1999   totaling   $8,263,300  or  93.0%  of  Limited   Partners'   capital
      contributions.

      I-D PARTNERSHIP

      THREE MONTHS  ENDED JUNE 30, 1999  COMPARED TO THE THREE MONTHS ENDED JUNE
      30, 1998.

                                                 Three Months Ended June 30,
                                                 ---------------------------
                                                    1999             1998
                                                  --------         --------
      Oil and gas sales                           $190,167         $186,722
      Oil and gas production expenses             $ 22,870         $ 40,413
      Barrels produced                               2,471            2,913
      Mcf produced                                  71,934           78,709
      Average price/Bbl                           $  13.51         $  11.95
      Average price/Mcf                           $   2.18         $   1.93

      As shown in the table  above,  total oil and gas  sales  increased  $3,445
      (1.8%) for the three  months  ended June 30, 1999 as compared to the three
      months ended June 30, 1998.  Of this  increase,  approximately  $4,000 and
      $18,000, respectively,  were related to increases in the average prices of
      oil and gas sold,  which  increases were partially  offset by decreases of
      approximately  $5,000 and $13,000,  respectively,  related to decreases in
      volumes  of oil and gas sold.  Volumes of oil and gas sold  decreased  442
      barrels and 6,775 Mcf,  respectively,  for the three months ended June 30,
      1999 as compared to the three months ended June 30, 1998.  The decrease in
      volumes of gas sold was primarily due to  production  difficulties  on one
      significant  well  during  the three  months  ended June 30,  1999,  which
      decrease was partially offset by a negative prior period volume adjustment
      made by the operator on another  significant  well during the three months
      ended June 30,  1998.  Average oil and gas prices  increased to $13.51 per
      barrel and $2.18 per Mcf,  respectively,  for the three  months ended June
      30, 1999 from $11.95 per barrel and $1.93 per Mcf,  respectively,  for the
      three months ended June 30, 1998.



                                       33


      The I-D Partnership  sold certain oil and gas properties  during the three
      months ended June 30, 1998 and  recognized a $108,746  gain on such sales.
      No such gains were  recognized on sales of oil and gas  properties  during
      the three months ended June 30, 1999.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  decreased  $17,543  (43.4%) for the three months ended
      June 30, 1999 as compared to the three months  ended June 30,  1998.  This
      decrease was primarily due to a negative  adjustment of prior period lease
      operating expenses made by the operator on one significant well during the
      three months ended June 30,  1999.  As a percentage  of oil and gas sales,
      these expenses decreased to 12.0% for the three months ended June 30, 1999
      from 21.6% for the three  months  ended  June 30,  1998.  This  percentage
      decrease  was  primarily  due to  the  dollar  decrease  in  oil  and  gas
      production expenses and the increases in the average prices of oil and gas
      sold.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      increased  $1,041  (8.9%)  for the three  months  ended  June 30,  1999 as
      compared to the three months ended June 30, 1998.  As a percentage  of oil
      and gas sales,  this expense  increased to 6.7% for the three months ended
      June 30, 1999 from 6.3% for the three months ended June 30, 1998.

      General and  administrative  expenses  increased $354 (1.6%) for the three
      months  ended June 30, 1999 as compared to the three months ended June 30,
      1998.  As a  percentage  of oil and gas  sales,  these  expenses  remained
      constant at 11.6% for the three  months  ended June 30, 1999 and the three
      months ended June 30, 1998.

      SIX MONTHS  ENDED JUNE 30, 1999  COMPARED TO THE SIX MONTHS ENDED JUNE 30,
      1998.

                                                  Six Months Ended June 30,
                                                  -------------------------
                                                    1999             1998
                                                  --------         --------
      Oil and gas sales                           $322,393         $480,382
      Oil and gas production expenses             $ 76,354         $ 89,293
      Barrels produced                               4,809            6,333
      Mcf produced                                 151,481          188,751
      Average price/Bbl                           $  12.23         $  13.23
      Average price/Mcf                           $   1.74         $   2.10

      As shown in the table above,  total oil and gas sales  decreased  $157,989
      (32.9%)  for the six months  ended June 30,  1999 as  compared  to the six
      months ended June 30, 1998. Of this  decrease,  approximately  $20,000 and
      $78,000,


                                       34


      respectively, were related to decreases in volumes of oil and gas sold and
      approximately $5,000 and $55,000, respectively,  were related to decreases
      in the  average  prices of oil and gas sold.  Volumes  of oil and gas sold
      decreased 1,524 barrels and 37,270 Mcf,  respectively,  for the six months
      ended June 30, 1999 as compared to the six months ended June 30, 1998. The
      decrease  in  volumes  of  oil  sold  was   primarily  due  to  production
      difficulties on one significant  well during the six months ended June 30,
      1999.  The decrease in volumes of gas sold was primarily due to production
      difficulties on one significant  well during the six months ended June 30,
      1999 and the sale of several wells during 1998. Average oil and gas prices
      decreased  to $12.23 per barrel and $1.74 per Mcf,  respectively,  for the
      six months  ended June 30,  1999 from $13.23 per barrel and $2.10 per Mcf,
      respectively, for the six months ended June 30, 1998.

      The I-D  Partnership  sold certain oil and gas  properties  during the six
      months ended June 30, 1998 and  recognized a $255,796  gain on such sales.
      No such gains were  recognized on sales of oil and gas  properties  during
      the six months ended June 30, 1999.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes) decreased $12,939 (14.5%) for the six months ended June
      30, 1999 as compared to the six months ended June 30, 1998.  This decrease
      was primarily due to (i) a decrease in production  taxes  associated  with
      the decrease in oil and gas sales and (ii) a negative  adjustment of prior
      period lease  operating  expenses made by the operator on one  significant
      well  during the six months  ended June 30,  1999.  These  decreases  were
      partially offset by workover expenses incurred on several wells during the
      six  months  ended  June 30,  1999 in order to  improve  the  recovery  of
      reserves.  As a percentage of oil and gas sales,  these expenses increased
      to 23.7% for the six  months  ended  June 30,  1999 from 18.6% for the six
      months ended June 30, 1998. This percentage  increase was primarily due to
      the workover  expenses  incurred in 1999 and the  decreases in the average
      prices of oil and gas sold.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      increased $2,468 (8.9%) for the six months ended June 30, 1999 as compared
      to the six months  ended June 30,  1998.  As a  percentage  of oil and gas
      sales,  this  expense  increased to 9.3% for the six months ended June 30,
      1999 from 5.7% for the six months  ended June 30,  1998.  This  percentage
      increase was primarily  due to the decreases in the average  prices of oil
      and gas sold.



                                       35


      General  and  administrative  expenses  increased  $989 (2.1%) for the six
      months  ended June 30, 1999 as  compared to the six months  ended June 30,
      1998. As a percentage of oil and gas sales,  these  expenses  increased to
      15.1% for the six months  ended June 30, 1999 from 9.9% for the six months
      ended June 30, 1998.  This  percentage  increase was  primarily due to the
      decrease in oil and gas sales.

      The Limited  Partners have received  cash  distributions  through June 30,
      1999  totaling   $14,218,175  or  197.62%  of  Limited  Partners'  capital
      contributions.

      I-E PARTNERSHIP

      THREE MONTHS  ENDED JUNE 30, 1999  COMPARED TO THE THREE MONTHS ENDED JUNE
      30, 1998.

                                                Three Months Ended June 30,
                                                ---------------------------
                                                  1999              1998
                                                --------         ----------
      Oil and gas sales                         $949,135         $1,026,695
      Oil and gas production expenses           $258,894         $  312,114
      Barrels produced                            14,779             17,876
      Mcf produced                               382,850            434,138
      Average price/Bbl                         $  14.86         $    11.53
      Average price/Mcf                         $   1.91         $     1.89

      As shown in the table  above,  total oil and gas sales  decreased  $77,560
      (7.6%) for the three  months  ended June 30, 1999 as compared to the three
      months ended June 30, 1998. Of this  decrease,  approximately  $36,000 and
      $97,000, respectively, were related to decreases in volumes of oil and gas
      sold,  which  decreases  were  partially  offset by an increase of $49,000
      related to an increase in the  average  price of oil sold.  Volumes of oil
      and gas sold decreased 3,097 barrels and 51,288 Mcf, respectively, for the
      three  months  ended June 30, 1999 as compared to the three  months  ended
      June 30, 1998.  The decrease in volumes of oil sold was  primarily  due to
      (i) positive  prior period  volume  adjustments  made by the  purchaser on
      three  significant  wells  during the three months ended June 30, 1998 and
      (ii) normal  declines in  production.  The decrease in volumes of gas sold
      was primarily due to positive prior period volume  adjustments made by the
      purchaser on two significant  wells during the three months ended June 30,
      1998.  Average oil and gas prices increased to $14.86 per barrel and $1.91
      per Mcf,  respectively,  for the three  months  ended  June 30,  1999 from
      $11.53 per barrel and $1.89 per Mcf,  respectively,  for the three  months
      ended June 30, 1998.



                                       36


      The I-E Partnership  sold certain oil and gas properties  during the three
      months ended June 30, 1998 and  recognized a $489,455  gain on such sales.
      No such gains were  recognized on sales of oil and gas  properties  during
      the three months ended June 30, 1999.

      As discussed in Liquidity and Capital Resources above, the I-E Partnership
      recognized an insurance  settlement  in the amount of $675,000  during the
      three months ended June 30, 1999. No similar  settlements  occurred during
      the three months ended June 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  decreased  $53,220  (17.1%) for the three months ended
      June 30, 1999 as compared to the three months  ended June 30,  1998.  This
      decrease was primarily due to workover  expenses incurred on several wells
      during  the three  months  ended  June 30,  1998 in order to  improve  the
      recovery of reserves and abandonment expenses incurred on two wells during
      the three  months  ended June 30,  1998.  As a  percentage  of oil and gas
      sales,  these expenses  decreased to 27.3% for the three months ended June
      30,  1999 from  30.4% for the  three  months  ended  June 30,  1998.  This
      percentage  decrease was primarily  due to the dollar  decrease in oil and
      gas production expenses.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      decreased  $20,611  (12.9%)  for the three  months  ended June 30, 1999 as
      compared  to the three  months  ended June 30,  1998.  This  decrease  was
      primarily  due to the  decreases  in  volumes  of oil and gas  sold.  As a
      percentage of oil and gas sales,  this expense  decreased to 14.7% for the
      three  months  ended June 30, 1999 from 15.6% for the three  months  ended
      June 30, 1998.

      General and administrative  expenses increased $1,627 (1.3%) for the three
      months  ended June 30, 1999 as compared to the three months ended June 30,
      1998. As a percentage of oil and gas sales,  these  expenses  increased to
      13.1% for the three  months  ended June 30,  1999 from 11.9% for the three
      months ended June 30, 1998. This percentage  increase was primarily due to
      the decrease in oil and gas sales.



                                       37


      SIX MONTHS  ENDED JUNE 30, 1999  COMPARED TO THE SIX MONTHS ENDED JUNE 30,
      1998.

                                                 Six Months Ended June 30,
                                                 -------------------------
                                                   1999             1998
                                                ----------       ----------
      Oil and gas sales                         $1,654,037       $2,092,070
      Oil and gas production expenses           $  557,345       $  601,078
      Barrels produced                              31,011           33,859
      Mcf produced                                 751,705          856,909
      Average price/Bbl                         $    12.58       $    13.15
      Average price/Mcf                         $     1.68       $     1.92

      As shown in the table above,  total oil and gas sales  decreased  $438,033
      (20.9%)  for the six months  ended June 30,  1999 as  compared  to the six
      months ended June 30, 1998. Of this decrease,  approximately  $202,000 was
      related to a decrease  in volumes of gas sold and  approximately  $181,000
      was related to a decrease in the average price of gas sold. Volumes of oil
      and gas sold decreased  2,848 barrels and 105,204 Mcf,  respectively,  for
      the six months  ended June 30, 1999 as  compared  to the six months  ended
      June 30, 1998.  The decrease in volumes of gas sold was  primarily  due to
      the sale of several  wells  during 1998 and positive  prior period  volume
      adjustments made by the purchaser on two significant  wells during the six
      months ended June 30, 1998. Average oil and gas prices decreased to $12.58
      per barrel and $1.68 per Mcf, respectively,  for the six months ended June
      30, 1999 from $13.15 per barrel and $1.92 per Mcf,  respectively,  for the
      six months ended June 30, 1998.

      The I-E  Partnership  sold certain oil and gas  properties  during the six
      months ended June 30, 1998 and recognized a $1,149,051 gain on such sales.
      No such gains were  recognized on sales of oil and gas  properties  during
      the six months ended June 30, 1999.

      As discussed in Liquidity and Capital Resources above, the I-E Partnership
      recognized an insurance  settlement  in the amount of $675,000  during the
      six months ended June 30, 1999. No similar settlements occurred during the
      six months ended June 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes) decreased  $43,733 (7.3%) for the six months ended June
      30,  1999  as  compared  to the six  months  ended  June  30,  1998.  As a
      percentage of oil and gas sales, these expenses increased to 33.7% for the
      six months  ended June 30,  1999 from 28.7% for the six months  ended June
      30, 1998. This  percentage  increase was primarily due to the decreases in
      the average prices of oil and gas sold.




                                       38


      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      decreased  $36,076  (11.5%)  for the six  months  ended  June 30,  1999 as
      compared  to the six  months  ended  June  30,  1998.  This  decrease  was
      primarily  due to the  decreases  in  volumes  of oil and gas  sold.  As a
      percentage of oil and gas sales,  this expense  increased to 16.7% for the
      six months  ended June 30,  1999 from 14.9% for the six months  ended June
      30, 1998. This  percentage  increase was primarily due to the decreases in
      the average prices of oil and gas sold.

      General and  administrative  expenses  increased $5,761 (2.1%) for the six
      months  ended June 30, 1999 as  compared to the six months  ended June 30,
      1998. As a percentage of oil and gas sales,  these  expenses  increased to
      16.8% for the six months ended June 30, 1999 from 13.0% for the six months
      ended June 30, 1998.  This  percentage  increase was  primarily due to the
      decrease in oil and gas sales.

      The Limited  Partners have received  cash  distributions  through June 30,
      1999  totaling   $53,731,552  or  128.42%  of  Limited  Partners'  capital
      contributions.

      I-F PARTNERSHIP

      THREE MONTHS  ENDED JUNE 30, 1999  COMPARED TO THE THREE MONTHS ENDED JUNE
      30, 1998.

                                                 Three Months Ended June 30,
                                                 ---------------------------
                                                   1999              1998
                                                  --------         --------
      Oil and gas sales                           $296,738         $320,633
      Oil and gas production expenses             $101,414         $139,586
      Barrels produced                               7,180            8,327
      Mcf produced                                 101,289          107,539
      Average price/Bbl                           $  14.99         $  11.74
      Average price/Mcf                           $   1.87         $   2.07

      As shown in the table  above,  total oil and gas sales  decreased  $23,895
      (7.5%) for the three  months  ended June 30, 1999 as compared to the three
      months ended June 30, 1998. Of this  decrease,  approximately  $13,000 and
      $13,000, respectively, were related to decreases in volumes of oil and gas
      sold and  approximately  $21,000  was related to a decrease in the average
      price of gas sold, which decreases were partially offset by an increase of
      approximately  $23,000  related to an increase in the average price of oil
      sold.  Volumes of oil and gas sold decreased  1,147 barrels and 6,250 Mcf,
      respectively,  for the three months ended June 30, 1999 as compared to the
      three months ended June 30, 1998.  The decrease in volumes of oil sold was
      primarily due to (i) positive prior period volume adjustments made by the



                                       39


      purchaser  on three  significant  wells during the three months ended June
      30,  1999 and (ii)  normal  declines  in  production.  Average  oil prices
      increased  to $14.99 per barrel for the three  months  ended June 30, 1999
      from $11.74 per barrel for the three months  ended June 30, 1998.  Average
      gas prices  decreased to $1.87 per Mcf for the three months ended June 30,
      1999 from $2.07 per Mcf for the three months ended June 30, 1998.

      The I-F Partnership  sold certain oil and gas properties  during the three
      months ended June 30, 1998 and recognized a $45,507 gain on such sales. No
      such gains were  recognized on sales of oil and gas properties  during the
      three months ended June 30, 1999.

      As discussed in Liquidity and Capital Resources above, the I-F Partnership
      recognized an insurance  settlement  in the amount of $472,500  during the
      three months ended June 30, 1999. No similar  settlements  occurred during
      the three months ended June 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes)  decreased  $38,172  (27.3%) for the three months ended
      June 30, 1999 as compared to the three months  ended June 30,  1998.  This
      decrease was primarily due to workover  expenses incurred on several wells
      during  the three  months  ended  June 30,  1998 in order to  improve  the
      recovery of reserves and abandonment expenses incurred on two wells during
      the three  months  ended June 30,  1998.  As a  percentage  of oil and gas
      sales,  these expenses  decreased to 34.2% for the three months ended June
      30,  1999 from  43.5% for the  three  months  ended  June 30,  1998.  This
      percentage  decrease was primarily  due to the dollar  decrease in oil and
      gas production expenses.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      decreased  $3,000  (6.3%)  for the three  months  ended  June 30,  1999 as
      compared to the three months ended June 30, 1998.  As a percentage  of oil
      and gas sales,  this expense increased to 15.0% for the three months ended
      June 30, 1999 from 14.8% for the three months ended June 30, 1998.

      General and  administrative  expenses  increased $584 (1.4%) for the three
      months  ended June 30, 1999 as compared to the three months ended June 30,
      1998. As a percentage of oil and gas sales,  these  expenses  increased to
      14.5% for the three  months  ended June 30,  1999 from 13.2% for the three
      months ended June 30, 1998.




                                       40


      SIX MONTHS  ENDED JUNE 30, 1999  COMPARED TO THE SIX MONTHS ENDED JUNE 30,
      1998.

                                                  Six months Ended June 30,
                                                  -------------------------
                                                   1999              1998
                                                  --------         --------
      Oil and gas sales                           $511,194         $686,935
      Oil and gas production expenses             $208,623         $260,496
      Barrels produced                              14,960           16,194
      Mcf produced                                 183,211          220,708
      Average price/Bbl                           $  12.69         $  13.32
      Average price/Mcf                           $   1.75         $   2.14

      As shown in the table above,  total oil and gas sales  decreased  $175,741
      (25.6%)  for the six months  ended June 30,  1999 as  compared  to the six
      months ended June 30, 1998. Of this  decrease,  approximately  $80,000 was
      related to a decrease in volumes of gas sold and approximately $70,000 was
      related to a decrease in the average price of gas sold. Volumes of oil and
      gas sold decreased 1,234 barrels and 37,497 Mcf, respectively, for the six
      months  ended June 30, 1999 as  compared to the six months  ended June 30,
      1998.  The  decrease in volumes of gas sold was  primarily  due to (i) the
      sale of several  wells during 1998,  (ii) a negative  prior period  volume
      adjustment  made by the purchaser on one  significant  well during the six
      months  ended June 30,  1999,  and (iii)  normal  declines in  production.
      Average  oil and gas prices  decreased  to $12.69 per barrel and $1.75 per
      Mcf, respectively,  for the six months ended June 30, 1999 from $13.32 per
      barrel and $2.14 per Mcf, respectively,  for the six months ended June 30,
      1998.

      The I-F  Partnership  sold certain oil and gas  properties  during the six
      months ended June 30, 1998 and  recognized a $333,266  gain on such sales.
      No such gains were  recognized on sales of oil and gas  properties  during
      the six months ended June 30, 1999.

      As discussed in Liquidity and Capital Resources above, the I-F Partnership
      recognized an insurance  settlement  in the amount of $472,500  during the
      six months ended June 30, 1999. No similar settlements occurred during the
      six months ended June 30, 1998.

      Oil and gas production  expenses  (including lease operating  expenses and
      production  taxes) decreased $51,873 (19.9%) for the six months ended June
      30, 1999 as compared to the six months ended June 30, 1998.  This decrease
      was  primarily  due to (i)  workover  expenses  incurred on several  wells
      during the six months ended June 30, 1998 in order to improve the recovery
      of reserves and (ii) a decrease in production  taxes  associated  with the
      decrease in oil and gas sales. As a


                                       41


      percentage of oil and gas sales, these expenses increased to 40.8% for the
      six months  ended June 30,  1999 from 37.9% for the six months  ended June
      30, 1998. This  percentage  increase was primarily due to the decreases in
      the average prices of oil and gas sold.

      Depreciation,  depletion,  and  amortization  of oil  and  gas  properties
      decreased  $11,726  (12.2%)  for the six  months  ended  June 30,  1999 as
      compared  to the six  months  ended  June  30,  1998.  This  decrease  was
      primarily  due to the  decreases  in  volumes  of oil and gas  sold.  As a
      percentage of oil and gas sales,  this expense  increased to 16.5% for the
      six months  ended June 30,  1999 from 14.0% for the six months  ended June
      30, 1998. This  percentage  increase was primarily due to the decreases in
      the average prices of oil and gas sold.

      General and  administrative  expenses  increased $2,059 (2.2%) for the six
      months  ended June 30, 1999 as  compared to the six months  ended June 30,
      1998. As a percentage of oil and gas sales,  these  expenses  increased to
      18.8% for the six months ended June 30, 1999 from 13.7% for the six months
      ended June 30, 1998.  This  percentage  increase was  primarily due to the
      decrease in oil and gas sales.

      The Limited  Partners have received  cash  distributions  through June 30,
      1999  totaling   $17,986,664  or  125.60%  of  Limited  Partners'  capital
      contributions.


YEAR 2000 COMPUTER ISSUES
- -------------------------

      IN GENERAL

      The Year 2000 Issue ("Y2K")  refers to the inability of computer and other
      information   technology   systems  to  properly  process  date  and  time
      information,  stemming from the earlier programming  practice of using two
      digits  rather than four to  represent  the year in a date.  For  example,
      computer programs and imbedded chips that are date sensitive may recognize
      a date  using  (00) as the  year  1900  rather  than the  year  2000.  The
      consequence of Y2K is that computer and imbedded processing systems may be
      at risk of malfunctioning, particularly during the transition from 1999 to
      2000.

      The effects of Y2K are exacerbated by the  interdependence of computer and
      telecommunication  systems throughout the world. This interdependence also
      exists  among  the  Partnerships,   Samson  Investment   Company  and  its
      affiliates  ("Samson"),   and  their  vendors,   customers,  and  business
      partners, as well as with regulators.  The potential risks associated with
      Y2K for an oil and gas production company fall into three general


                                       42

      areas: (i) financial,  leasehold and administrative computer systems, (ii)
      imbedded  systems in field process  control  units,  and (iii) third party
      exposures. As discussed below, General Partner does not believe that these
      risks will be material to the Partnerships' operations.

      The  Partnerships'  business  is  producing  oil and gas.  The  day-to-day
      production of the  Partnerships' oil and gas is not dependent on computers
      or equipment with imbedded chips. As further  discussed below,  management
      anticipates that the Partnerships'  daily business  activities will not be
      materially affected by Y2K.

      The  Partnerships  rely on Samson to provide all of their  operational and
      administrative  services on either a direct or indirect  basis.  Samson is
      addressing each of the three Y2K areas discussed above through a readiness
      process that seeks to:

      1.    increase the awareness of the issue among key employees;
      2.    identify areas of potential risk;
      3.    assess the relative impact of these risks and Samson's  ability to
            manage them; and
      4.    remediate these risks on a priority basis wherever possible.

      One  of  Samson   Investment   Company's   Executive  Vice  Presidents  is
      responsible  for  communicating  to its Board of Directors Y2K actions and
      for the  ultimate  implementation  of its Y2K plan.  He has  delegated  to
      Samson   Investment   Company's  Senior  Vice   President-Technology   and
      Administrative Services principal responsibility for ensuring Y2K
      compliance within Samson.

      Samson  has  been  planning  for  the  impact  of Y2K  on its  information
      technology systems since 1993. As of July 15, 1999, Samson is in the final
      stages of implementation of a Y2K plan, as summarized below:


      FINANCIAL AND ADMINISTRATIVE SYSTEMS

      1. Awareness. Samson has alerted its officers, managers and supervisors of
      Y2K  issues  and asked them to have  their  employees  participate  in the
      identification  of potential Y2K risks which might  otherwise go unnoticed
      by higher level  employees  and  officers.  As a result,  awareness of the
      issue is considered high.



                                       43



      2.  Risk   Identification.   Samson's  most   significant   financial  and
      administrative  systems  exposure is the Y2K status of the  accounting and
      land  administration  system used to collect and manage data for  internal
      management  decision making and for external  revenue and accounts payable
      purposes.  Other concerns include network  hardware and software,  desktop
      computing  hardware  and  software,  telecommunications,  and office space
      readiness.

      3. Risk  Assessment.  The failure to identify  and correct a material  Y2K
      problem could result in inaccurate or untimely  financial  information for
      management  decision-making  or cash flow and payment purposes,  including
      maintaining oil and gas leases.

      4.  Remediation.  Since 1993, Samson has been upgrading its accounting and
      land administration  software.  Substantially all of the Y2K upgrades have
      been completed,  with the remainder  scheduled to be completed  during the
      3rd quarter of 1999.  In  addition,  in 1997 and 1998  Samson  replaced or
      applied software  patches to substantially  all of its network and desktop
      software  applications  and believes them to be generally  Y2K  compliant.
      Additional  patches  or  software  upgrades  will be applied no later than
      September 30, 1999 to complete  this  process.  The costs of all such risk
      assessments  and  remediation  are  not  expected  to be  material  to the
      Partnerships.

      5. Contingency  Planning.  Notwithstanding the foregoing,  should there be
      significant   unanticipated   disruptions   in  Samson's   financial   and
      administrative systems, all of the accounting processes that are currently
      automated will need to be performed  manually.  Samson has communicated to
      its management  team the importance of having  adequate staff available to
      manually perform necessary functions to minimize disruptions.


      IMBEDDED SYSTEMS

      1.  Awareness.  Samson's  Y2K  program  has  involved  all levels of field
      personnel from production  foremen and higher.  Employees at all levels of
      the organization  have been asked to participate in the  identification of
      potential  Y2K risks,  which might  otherwise go unnoticed by higher level
      employees and officers of Samson, and as a result,  awareness of the issue
      is considered high.

      2.    Risk   Identification.   Samson  has   inventoried   all  possible
      exposures  to  imbedded  chips  and  systems.   Such  exposures  can  be
      classified as either (i) oil and gas


                                       44


      production and processing equipment or (ii) office machines such as faxes,
      copiers, phones, etc.

      With respect to oil and gas production and processing  equipment,  neither
      Samson nor the Partnerships operate offshore wells, significant processing
      plants, or wells with older electronic  monitoring  systems.  As a result,
      Samson's  inventory  identified less than 10  applications  using imbedded
      chips.  All of these have been tested by the  respective  vendors and have
      been found to be Y2K compliant or have been upgraded or replaced.

      Office machines have been tested by Samson and vendors and are believed to
      be compliant.

      3. Risk Assessment and Remediation.  The failure to identify and correct a
      material  Y2K  problem in an  imbedded  system  could  result in  outcomes
      ranging  from errors in data  reporting  to  curtailments  or shutdowns in
      production.  As noted above,  Samson has identified  less than 10 imbedded
      system  applications  all of which have been made  compliant  or replaced.
      None of these  applications  are  believed to be material to Samson or the
      Partnerships.   Samson  believes  that  sufficient  manual  processes  are
      available  to  minimize  any field  level  risk and that  there will be no
      material impact on the Partnerships with respect to these applications.

      4. Contingency Planning. Should material production disruptions occur as a
      result of Y2K  failures  in field  operations,  Samson  will  utilize  its
      existing  field  personnel in an attempt to avoid any  material  impact on
      operating cash flow. Samson is not able to quantify any potential exposure
      in the event of systems failure or inadequate manual alternatives.


      THIRD PARTY EXPOSURES

      1. Awareness.  Samson has advised  management to consider Y2K implications
      with its outside vendors, customers, and business partners. Management has
      been asked to participate in the  identification  of potential third party
      Y2K risks and, as a result, awareness of the issue is considered high.

      2. Risk Identification. Samson's most significant third party Y2K exposure
      is its  dependence  on third  parties for the receipt of revenues from oil
      and gas sales.  However,  virtually all of these purchasers are very large
      and sophisticated  companies.  Other Y2K concerns include the availability
      of  electric  power  to  Samson's  field  operations,   the  integrity  of
      telecommunication  systems,  and the  readiness  of  commercial  banks  to
      execute electronic fund transfers.



                                       45


      3. Risk  Assessment.  Because of the high  awareness of the Y2K problem in
      the U.S.,  Samson  has not  undertaken  and does not plan to  undertake  a
      formal company wide plan to make inquiries of third parties on the subject
      of Y2K readiness. If it did so, Samson has no ability to require responses
      to such inquiries or to independently  verify their accuracy.  Samson has,
      however,  received  oral  assurances  from  its  significant  oil  and gas
      purchasers  of Y2K  compliance.  If  significant  disruptions  from  major
      purchasers were to occur,  however,  there could be a material and adverse
      impact  on  the  Partnerships'  results  of  operations,   liquidity,  and
      financial conditions.

      It is  important  to note that  third  party oil and gas  purchasers  have
      significant  incentives to avoid  disruptions  arising from a Y2K failure.
      For example,  most of these parties are under  contractual  obligations to
      purchase oil and gas or disperse revenues to Samson.  The failure to do so
      will result in  contractual  and statutory  penalties.  Therefore,  Samson
      believes  that it is  unlikely  that there will be  material  third  party
      non-compliance with purchase and remittance obligations as a result of Y2K
      issues.

      4.   Remediation.   Where  Samson   perceives   significant  risk  of  Y2K
      non-compliance  that may have a  material  impact  on it,  and  where  the
      relationship  between Samson and a vendor,  customer,  or business partner
      permits,  joint testing may be undertaken  during the remainder of 1999 to
      further identify these risks.

      5. Contingency  Planning.  In the unlikely event that material  production
      disruptions  occur as a result  of Y2K  failures  of  third  parties,  the
      Partnerships' operating cash flow could be impacted. This contingency will
      be  factored   into   deliberations   on  the  level  of  quarterly   cash
      distributions paid out during any such period of cash flow disruption.




                                       46


ITEM 3.     QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET
            RISK.

            The Partnerships do not hold any market risk sensitive instruments.





                                       47


                           PART II. OTHER INFORMATION


ITEM 6.     EXHIBITS AND REPORTS ON FORM 8-K

(a)   Exhibits

27.1        Financial  Data Schedule  containing  summary  financial
            information   extracted   from  the  I-B   Partnership's
            financial statements as of June 30, 1999 and for the six
            months ended June 30, 1999, filed herewith.

27.2        Financial  Data Schedule  containing  summary  financial
            information   extracted   from  the  I-C   Partnership's
            financial statements as of June 30, 1999 and for the six
            months ended June 30, 1999, filed herewith.

27.3        Financial  Data Schedule  containing  summary  financial
            information   extracted   from  the  I-D   Partnership's
            financial statements as of June 30, 1999 and for the six
            months ended June 30, 1999, filed herewith.

27.4        Financial  Data Schedule  containing  summary  financial
            information   extracted   from  the  I-E   Partnership's
            financial statements as of June 30, 1999 and for the six
            months ended June 30, 1999, filed herewith.

27.5        Financial  Data Schedule  containing  summary  financial
            information   extracted   from  the  I-F   Partnership's
            financial statements as of June 30, 1999 and for the six
            months ended June 30, 1999, filed herewith.

            All other exhibits are omitted as inapplicable.

(b) Reports on Form 8-K.

            None.



                                       48


                                   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, thereunto duly authorized.

                                   GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-B
                                   GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
                                   GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-D
                                   GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-E
                                   GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-F

                                    (Registrant)

                                    BY:   GEODYNE RESOURCES, INC.

                                          General Partner


Date:  August 12, 1999              By:       /s/Dennis R. Neill
                                       --------------------------------
                                             (Signature)
                                             Dennis R. Neill
                                             President


Date:  August 12, 1999              By:      /s/Patrick M. Hall
                                       --------------------------------
                                            (Signature)
                                            Patrick M. Hall
                                            Principal Accounting Officer



                                       49


                                INDEX TO EXHIBITS


NUMBER      DESCRIPTION
- ------      -----------

27.1        Financial Data Schedule  containing  summary  financial  information
            extracted from the Geodyne Energy Income Limited  Partnership  I-B's
            financial  statements  as of June 30,  1999  and for the six  months
            ended June 30, 1999, filed herewith.

27.2        Financial Data Schedule  containing  summary  financial  information
            extracted from the Geodyne Energy Income Limited  Partnership  I-C's
            financial  statements  as of June 30,  1999  and for the six  months
            ended June 30, 1999, filed herewith.

27.3        Financial Data Schedule  containing  summary  financial  information
            extracted from the Geodyne Energy Income Limited  Partnership  I-D's
            financial  statements  as of June 30,  1999  and for the six  months
            ended June 30, 1999, filed herewith.

27.4        Financial Data Schedule  containing  summary  financial  information
            extracted from the Geodyne Energy Income Limited  Partnership  I-E's
            financial  statements  as of June 30,  1999  and for the six  months
            ended June 30, 1999, filed herewith.

27.5        Financial Data Schedule  containing  summary  financial  information
            extracted from the Geodyne Energy Income Limited  Partnership  I-F's
            financial  statements  as of June 30,  1999  and for the six  months
            ended June 30, 1999, filed herewith.

            All other exhibits are omitted as inapplicable.







                                       50