<ARTICLE>                      5
<CIK>                          0000851724
<NAME>                         GEODYNE ENERGY INCOME LIMITED PARTNERSHIP II-G
                                
                            
<PERIOD-TYPE>                  6-MOS
<FISCAL-YEAR-END>              DEC-31-1998
<PERIOD-START>                 JAN-01-1998
<PERIOD-END>                   JUN-30-1998
<CASH>                            1,745,845
<SECURITIES>                              0
<RECEIVABLES>                       482,613
<ALLOWANCES>                              0
<INVENTORY>                               0
<CURRENT-ASSETS>                  2,228,458
<PP&E>                           23,923,956
<DEPRECIATION>                   19,133,716
<TOTAL-ASSETS>                    7,142,675
<CURRENT-LIABILITIES>               109,997
<BONDS>                                   0
<PREFERRED-MANDATORY>                     0
<PREFERRED>                               0
<COMMON>                                  0
<OTHER-SE>                        6,968,569
<TOTAL-LIABILITY-AND-EQUITY>      7,142,675
<SALES>                           1,748,556
<TOTAL-REVENUES>                  3,142,327
<CGS>                                     0
<TOTAL-COSTS>                     1,046,539
<OTHER-EXPENSES>                          0
<LOSS-PROVISION>                          0
<INTEREST-EXPENSE>                        0
<INCOME-PRETAX>                   2,095,788
<INCOME-TAX>                              0
<INCOME-CONTINUING>               2,095,788
<DISCONTINUED>                            0
<EXTRAORDINARY>                           0
<CHANGES>                                 0
<NET-INCOME>                      2,095,788
<EPS-PRIMARY>                          5.31
<EPS-DILUTED>                             0