<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
Balance Sheet at March 31, 1999 (Unaudited) and the Statement of Operations for
the Three Months Ended March 31, 1999 (Unaudited) and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                          79,889
<SECURITIES>                                         0
<RECEIVABLES>                                   52,685
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                               132,574
<PP&E>                                       3,114,992
<DEPRECIATION>                               2,597,000
<TOTAL-ASSETS>                                 650,566
<CURRENT-LIABILITIES>                              532
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                     650,034
<TOTAL-LIABILITY-AND-EQUITY>                   650,566
<SALES>                                         52,092
<TOTAL-REVENUES>                                52,286
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                                33,171
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 19,115
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                             19,115
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    19,115
<EPS-PRIMARY>                                     1.62
<EPS-DILUTED>                                     1.62