<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM SWIFT ENERGY
MANAGED PENSION ASSETS PARTNERSHIP 1991-A LTD.'S BALANCE SHEET AND STATEMENT OF
OPERATIONS CONTAINED IN ITS FORM 10-Q FOR THE QUARTER ENDED JUNE 30, 1996.
</LEGEND>
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               JUN-30-1996
<CASH>                                           1,170
<SECURITIES>                                         0
<RECEIVABLES>                                   13,111
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                14,281
<PP&E>                                       1,664,853
<DEPRECIATION>                             (1,247,864)
<TOTAL-ASSETS>                                 431,270
<CURRENT-LIABILITIES>                          390,882
<BONDS>                                              0
<COMMON>                                             0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                      40,388
<TOTAL-LIABILITY-AND-EQUITY>                   431,270
<SALES>                                         11,112
<TOTAL-REVENUES>                                11,132
<CGS>                                                0
<TOTAL-COSTS>                                  197,275<F1>
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                              (197,255)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                          (197,255)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 (197,255)
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0
<FN>
<F1>Includes lease operating expenses, production taxes and depreciation, depletion
and amortization expense. Excludes general and administrative and interest
expense.
</FN>