<ARTICLE>                           5
<CIK>                               0000863837
<NAME>                              GEODYNE ENERGY INCOME LTD PSHIP III-C

                                 
<PERIOD-TYPE>                       9-MOS
<FISCAL-YEAR-END>                   DEC-31-1999
<PERIOD-START>                      JAN-01-1999
<PERIOD-END>                        SEP-30-1999
<CASH>                                    393,156
<SECURITIES>                                    0
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<CURRENT-ASSETS>                          875,601
<PP&E>                                 20,667,910
<DEPRECIATION>                         18,233,103
<TOTAL-ASSETS>                          3,381,257
<CURRENT-LIABILITIES>                      61,883
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<OTHER-SE>                              3,167,703
<TOTAL-LIABILITY-AND-EQUITY>            3,381,257
<SALES>                                 1,758,244
<TOTAL-REVENUES>                        1,767,677
<CGS>                                           0
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<OTHER-EXPENSES>                                0
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<EPS-BASIC>                                2.69
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