<ARTICLE> 5 <CIK> 0000873739 <NAME> GEODYNE ENERGY INCOME LTD PARTNERSHIP III-F <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> JUN-30-1999 <CASH> 157,341 <SECURITIES> 0 <RECEIVABLES> 336,506 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 493,847 <PP&E> 17,440,571 <DEPRECIATION> 14,777,272 <TOTAL-ASSETS> 3,236,243 <CURRENT-LIABILITIES> 206,945 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 2,857,563 <TOTAL-LIABILITY-AND-EQUITY> 3,236,243 <SALES> 923,024 <TOTAL-REVENUES> 927,426 <CGS> 0 <TOTAL-COSTS> 921,150 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 6,276 <INCOME-TAX> 0 <INCOME-CONTINUING> 6,276 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 6,276 <EPS-BASIC> (0.02) <EPS-DILUTED> 0