<ARTICLE>                      5
<CIK>                          0000870229
<NAME>                         GEODYNE ENERGY INCOME LIMITED PARTNERSHIP III-D
                                
                            
<PERIOD-TYPE>                  6-MOS
<FISCAL-YEAR-END>              DEC-31-1998
<PERIOD-START>                 JAN-01-1998
<PERIOD-END>                   JUN-30-1998
<CASH>                              236,221
<SECURITIES>                              0
<RECEIVABLES>                       307,552
<ALLOWANCES>                              0
<INVENTORY>                               0
<CURRENT-ASSETS>                    543,773
<PP&E>                           12,658,796
<DEPRECIATION>                   10,550,123
<TOTAL-ASSETS>                    2,671,321
<CURRENT-LIABILITIES>                65,274
<BONDS>                                   0
<PREFERRED-MANDATORY>                     0
<PREFERRED>                               0
<COMMON>                                  0
<OTHER-SE>                        2,404,113
<TOTAL-LIABILITY-AND-EQUITY>      2,671,321
<SALES>                             912,164
<TOTAL-REVENUES>                    975,706
<CGS>                                     0
<TOTAL-COSTS>                       577,830
<OTHER-EXPENSES>                          0
<LOSS-PROVISION>                          0
<INTEREST-EXPENSE>                        0
<INCOME-PRETAX>                     397,876
<INCOME-TAX>                              0
<INCOME-CONTINUING>                 397,876
<DISCONTINUED>                            0
<EXTRAORDINARY>                           0
<CHANGES>                                 0
<NET-INCOME>                        397,876
<EPS-PRIMARY>                          2.84
<EPS-DILUTED>                             0