<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> SEP-30-2000
<CASH> 9,146,707
<SECURITIES> 294,000
<RECEIVABLES> 8,663,230
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 18,103,937
<PP&E> 63,487,844
<DEPRECIATION> 23,977,975
<TOTAL-ASSETS> 57,613,806
<CURRENT-LIABILITIES> 2,018,765
<BONDS> 27,167,964
0
0
<COMMON> 0
<OTHER-SE> 28,427,077
<TOTAL-LIABILITY-AND-EQUITY> 57,613,806
<SALES> 0
<TOTAL-REVENUES> 7,773,141
<CGS> 0
<TOTAL-COSTS> 5,380,896
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 1,897,611
<INCOME-PRETAX> 494,634
<INCOME-TAX> 0
<INCOME-CONTINUING> 494,634
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 494,634
<EPS-BASIC> 0
<EPS-DILUTED> 0
</TABLE>