<ARTICLE>                        5
<CIK>                            0000869801    
<NAME>                           GEODYNE INST/PENSION ENERGY INCOME LTD PSHP P-6
                                  
                              
<PERIOD-TYPE>                    9-MOS
<FISCAL-YEAR-END>                DEC-31-1998
<PERIOD-START>                   JAN-01-1998
<PERIOD-END>                     SEP-30-1998
<CASH>                                253,745
<SECURITIES>                                0
<RECEIVABLES>                         128,250
<ALLOWANCES>                                0
<INVENTORY>                                 0
<CURRENT-ASSETS>                      381,995
<PP&E>                             11,957,968
<DEPRECIATION>                      9,782,739
<TOTAL-ASSETS>                      2,557,224
<CURRENT-LIABILITIES>                       0
<BONDS>                                     0
<PREFERRED-MANDATORY>                       0
<PREFERRED>                                 0
<COMMON>                                    0
<OTHER-SE>                          2,557,224
<TOTAL-LIABILITY-AND-EQUITY>        2,557,224
<SALES>                               873,844
<TOTAL-REVENUES>                    1,017,308
<CGS>                                       0
<TOTAL-COSTS>                         439,447
<OTHER-EXPENSES>                            0
<LOSS-PROVISION>                            0
<INTEREST-EXPENSE>                          0
<INCOME-PRETAX>                       577,861
<INCOME-TAX>                                0
<INCOME-CONTINUING>                   577,861
<DISCONTINUED>                              0
<EXTRAORDINARY>                             0
<CHANGES>                                   0
<NET-INCOME>                          577,861
<EPS-PRIMARY>                            3.75
<EPS-DILUTED>                               0