<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 March 31, 2000 and is qualified
in its entirety by reference to such financial statements.
</LEGEND>

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                              DEC-31-2000
<PERIOD-END>                                   MAR-31-2000
<CASH>                                         382,316
<SECURITIES>                                   0
<RECEIVABLES>                                  69,104
<ALLOWANCES>                                   0
<INVENTORY>                                    0
<CURRENT-ASSETS>                               451,420
<PP&E>                                         10,274,582
<DEPRECIATION>                                 (9,566,012)
<TOTAL-ASSETS>                                 1,164,329
<CURRENT-LIABILITIES>                          16,480
<BONDS>                                        0
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    0
<COMMON>                                       0
<OTHER-SE>                                     1,130,194
<TOTAL-LIABILITY-AND-EQUITY>                   1,164,329
<SALES>                                        111,451
<TOTAL-REVENUES>                               116,309
<CGS>                                          0
<TOTAL-COSTS>                                  51,192<F1>
<OTHER-EXPENSES>                               0
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                             0
<INCOME-PRETAX>                                35,032
<INCOME-TAX>                                   0
<INCOME-CONTINUING>                            35,032
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   35,032
<EPS-BASIC>                                    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>