<ARTICLE>                     5
<LEGEND>
     (Replace this text with the legend)
</LEGEND>
<CIK>                           0000880580
<NAME>                          Enex 90-91 Income & Retirement Fund - Sr 3, L.P.
       
                             
<PERIOD-TYPE>                   9-mos
<FISCAL-YEAR-END>                              dec-31-1996
<PERIOD-START>                                 jan-01-1996
<PERIOD-END>                                   sep-30-1996
<CASH>                                         54106
<SECURITIES>                                   0
<RECEIVABLES>                                  38236
<ALLOWANCES>                                   0
<INVENTORY>                                    0
<CURRENT-ASSETS>                               87431
<PP&E>                                         962796
<DEPRECIATION>                                 472343
<TOTAL-ASSETS>                                 577884
<CURRENT-LIABILITIES>                          38
<BONDS>                                        0
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    0
<COMMON>                                       0
<OTHER-SE>                                     577846
<TOTAL-LIABILITY-AND-EQUITY>                   577884
<SALES>                                        186485
<TOTAL-REVENUES>                               186485
<CGS>                                          0
<TOTAL-COSTS>                                  61748
<OTHER-EXPENSES>                               29354
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                             0
<INCOME-PRETAX>                                0
<INCOME-TAX>                                   0
<INCOME-CONTINUING>                            0
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   95383
<EPS-PRIMARY>                                  0
<EPS-DILUTED>                                  0