<ARTICLE>                           5
<CIK>                               0000860745    
<NAME>                              GEODYNE ENERGY INCOME LTD PARTNERSHIP III-A
                                     
                                 
<PERIOD-TYPE>                       3-MOS
<FISCAL-YEAR-END>                   DEC-31-1999
<PERIOD-START>                      JAN-01-1999
<PERIOD-END>                        MAR-31-1999
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