<ARTICLE> 5

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               SEP-30-1999
<CASH>                                          99,034
<SECURITIES>                                       426
<RECEIVABLES>                                   26,575
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                               126,035
<PP&E>                                       3,011,349
<DEPRECIATION>                                 999,105
<TOTAL-ASSETS>                               2,138,279
<CURRENT-LIABILITIES>                           23,721
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                   1,976,605
<TOTAL-LIABILITY-AND-EQUITY>                 2,138,279
<SALES>                                              0
<TOTAL-REVENUES>                               238,856
<CGS>                                                0
<TOTAL-COSTS>                                  113,032
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                125,824
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            125,824
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   125,824
<EPS-BASIC>                                       0.75
<EPS-DILUTED>                                     0.75