<ARTICLE>                           5
<CIK>                               0000869801
<NAME>                              GEODYNE INST/PENS ENERGY INCOME LTD PSHP P-6

                                 
<PERIOD-TYPE>                       12-MOS
<FISCAL-YEAR-END>                   DEC-31-1999
<PERIOD-START>                      JAN-01-1999
<PERIOD-END>                        DEC-31-1999
<CASH>                                   339,386
<SECURITIES>                                   0
<RECEIVABLES>                            177,661
<ALLOWANCES>                                   0
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<PP&E>                                12,024,877
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<TOTAL-ASSETS>                         2,314,214
<CURRENT-LIABILITIES>                          0
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<SALES>                                1,340,784
<TOTAL-REVENUES>                       1,350,366
<CGS>                                          0
<TOTAL-COSTS>                            498,875
<OTHER-EXPENSES>                               0
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<INCOME-PRETAX>                          851,491
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<EPS-BASIC>                                 5.57
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