<TABLE> <S> <C>
<ARTICLE> 5
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<CASH> 2,444
<SECURITIES> 0
<RECEIVABLES> 2,280,668
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 2,283,112
<PP&E> 93,162,180
<DEPRECIATION> 42,864,710
<TOTAL-ASSETS> 52,580,582
<CURRENT-LIABILITIES> 2,283,112
<BONDS> 0
0
0
<COMMON> 0
<OTHER-SE> 50,297,470
<TOTAL-LIABILITY-AND-EQUITY> 52,580,582
<SALES> 2,577,044
<TOTAL-REVENUES> 2,577,044
<CGS> 0
<TOTAL-COSTS> 296,376
<OTHER-EXPENSES> 92,932
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> (2,444)
<INCOME-PRETAX> 2,190,180
<INCOME-TAX> 0
<INCOME-CONTINUING> 2,190,180
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 2,190,180
<EPS-BASIC> 0.371
<EPS-DILUTED> 0.371
</TABLE>