<ARTICLE>                          5
<CIK>                              0000879815     
<NAME>                             GEODYNE ENERGY INCOME LTD PARTNERSHIP III-G
                                    
                                
<PERIOD-TYPE>                      9-MOS
<FISCAL-YEAR-END>                  DEC-31-1998
<PERIOD-START>                     JAN-01-1998
<PERIOD-END>                       SEP-30-1998
<CASH>                                   187,952
<SECURITIES>                                   0
<RECEIVABLES>                            156,326
<ALLOWANCES>                                   0
<INVENTORY>                                    0
<CURRENT-ASSETS>                         344,278
<PP&E>                                 9,956,233
<DEPRECIATION>                         8,076,651
<TOTAL-ASSETS>                         2,299,266
<CURRENT-LIABILITIES>                    139,809
<BONDS>                                        0
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    0
<COMMON>                                       0
<OTHER-SE>                             2,070,147
<TOTAL-LIABILITY-AND-EQUITY>           2,299,266
<SALES>                                  992,166
<TOTAL-REVENUES>                       1,024,357
<CGS>                                          0
<TOTAL-COSTS>                            930,007
<OTHER-EXPENSES>                               0
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                             0
<INCOME-PRETAX>                           94,350
<INCOME-TAX>                                   0
<INCOME-CONTINUING>                       94,350
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                              94,350
<EPS-PRIMARY>                               0.65
<EPS-DILUTED>                                  0