<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-END> JUN-30-1997 <CASH> 2,099,831 <SECURITIES> 0 <RECEIVABLES> 588,141 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 4,756,623 <PP&E> 68,334,101 <DEPRECIATION> 16,541,704 <TOTAL-ASSETS> 58,094,598 <CURRENT-LIABILITIES> 2,383,680 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 3,456,969 <TOTAL-LIABILITY-AND-EQUITY> 58,094,598 <SALES> 8,438,494 <TOTAL-REVENUES> 8,531,937 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 5,740,871 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 2,329,178 <INCOME-PRETAX> 516,923 <INCOME-TAX> 0 <INCOME-CONTINUING> 516,923 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 516,923 <EPS-PRIMARY> 2.96 <EPS-DILUTED> 2.96