<TABLE> <S> <C>
<ARTICLE>5
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> SEP-30-2000
<CASH> 18949319
<SECURITIES> 0
<RECEIVABLES> 943697
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 0
<PP&E> 115363309
<DEPRECIATION> 87125300
<TOTAL-ASSETS> 48145497
<CURRENT-LIABILITIES> 0
<BONDS> 0
0
0
<COMMON> 0
<OTHER-SE> 40173367
<TOTAL-LIABILITY-AND-EQUITY> 48145497
<SALES> 0
<TOTAL-REVENUES> 10284432
<CGS> 0
<TOTAL-COSTS> 0
<OTHER-EXPENSES> 4707261
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 5577171
<INCOME-TAX> 0
<INCOME-CONTINUING> 5577171
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 5577171
<EPS-BASIC> 9.90
<EPS-DILUTED> 0
</TABLE>