<ARTICLE>                           5
<CIK>                               0000854066
<NAME>                              GEODYNE INST/PEN ENERGY INCOME LTD PSHP P-3

                                   
<PERIOD-TYPE>                       9-MOS
<FISCAL-YEAR-END>                   DEC-31-1999
<PERIOD-START>                      JAN-01-1999
<PERIOD-END>                        SEP-30-1999
<CASH>                                   234,108
<SECURITIES>                                   0
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<ALLOWANCES>                                   0
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<CURRENT-ASSETS>                         514,019
<PP&E>                                10,505,298
<DEPRECIATION>                         8,871,437
<TOTAL-ASSETS>                         2,147,880
<CURRENT-LIABILITIES>                          0
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<OTHER-SE>                             2,147,880
<TOTAL-LIABILITY-AND-EQUITY>           2,147,880
<SALES>                                  852,103
<TOTAL-REVENUES>                         858,211
<CGS>                                          0
<TOTAL-COSTS>                            400,086
<OTHER-EXPENSES>                               0
<LOSS-PROVISION>                               0
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<INCOME-TAX>                                   0
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<EPS-BASIC>                               2.51
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