<ARTICLE> 5 <CIK> 0000850506 <NAME> GEODYNE ENERGY INCOME LIMITED PSHIP II-F <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> MAR-31-1999 <CASH> 166,828 <SECURITIES> 0 <RECEIVABLES> 192,903 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 359,731 <PP&E> 11,104,842 <DEPRECIATION> 9,123,825 <TOTAL-ASSETS> 2,387,121 <CURRENT-LIABILITIES> 32,098 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 2,330,028 <TOTAL-LIABILITY-AND-EQUITY> 2,387,121 <SALES> 394,229 <TOTAL-REVENUES> 396,908 <CGS> 0 <TOTAL-COSTS> 329,509 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 67,399 <INCOME-TAX> 0 <INCOME-CONTINUING> 67,399 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 67,399 <EPS-PRIMARY> 0.30 <EPS-DILUTED> 0