<ARTICLE>                      5
<CIK>                          0000791067
<NAME>                         GEODYNE ENERGY INCOME LIMITED PARTNERSHIP I-C
                                
                            
<PERIOD-TYPE>                  6-MOS
<FISCAL-YEAR-END>              DEC-31-1998
<PERIOD-START>                 JAN-01-1998
<PERIOD-END>                   JUN-30-1998
<CASH>                               42,188
<SECURITIES>                              0
<RECEIVABLES>                        82,411
<ALLOWANCES>                              0
<INVENTORY>                               0
<CURRENT-ASSETS>                    124,599
<PP&E>                            3,641,486
<DEPRECIATION>                    3,319,748
<TOTAL-ASSETS>                      557,280
<CURRENT-LIABILITIES>                15,802
<BONDS>                                   0
<PREFERRED-MANDATORY>                     0
<PREFERRED>                               0
<COMMON>                                  0
<OTHER-SE>                          523,375
<TOTAL-LIABILITY-AND-EQUITY>        557,280
<SALES>                             282,095
<TOTAL-REVENUES>                    284,065
<CGS>                                     0
<TOTAL-COSTS>                       179,164
<OTHER-EXPENSES>                          0
<LOSS-PROVISION>                          0
<INTEREST-EXPENSE>                        0
<INCOME-PRETAX>                     104,901
<INCOME-TAX>                              0
<INCOME-CONTINUING>                 104,901
<DISCONTINUED>                            0
<EXTRAORDINARY>                           0
<CHANGES>                                 0
<NET-INCOME>                        104,901
<EPS-PRIMARY>                         11.17
<EPS-DILUTED>                             0