<ARTICLE> 5 <CIK> 0000863837 <NAME> GEODYNE ENERGY INCOME LTD PARTNERSHIP III-C <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> MAR-31-1999 <CASH> 273,983 <SECURITIES> 0 <RECEIVABLES> 320,113 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 594,096 <PP&E> 20,668,395 <DEPRECIATION> 17,993,482 <TOTAL-ASSETS> 3,339,858 <CURRENT-LIABILITIES> 68,408 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 3,119,779 <TOTAL-LIABILITY-AND-EQUITY> 3,339,858 <SALES> 469,764 <TOTAL-REVENUES> 472,639 <CGS> 0 <TOTAL-COSTS> 375,380 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 97,259 <INCOME-TAX> 0 <INCOME-CONTINUING> 97,259 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 97,259 <EPS-PRIMARY> 0.36 <EPS-DILUTED> 0