<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from Swift
Energy Income Partners 1987-D 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>                                           1,834
<SECURITIES>                                         0
<RECEIVABLES>                                  239,468
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                               241,302
<PP&E>                                      10,891,829
<DEPRECIATION>                              (8,459,432)
<TOTAL-ASSETS>                               2,675,675
<CURRENT-LIABILITIES>                          385,083
<BONDS>                                              0
<COMMON>                                             0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                   2,272,704
<TOTAL-LIABILITY-AND-EQUITY>                 2,675,675
<SALES>                                        535,345
<TOTAL-REVENUES>                               543,094
<CGS>                                                0
<TOTAL-COSTS>                                  357,992<F1>
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                110,942
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            110,942
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   110,942
<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>