<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-END> JUN-30-1998 <CASH> 7,332,786 <SECURITIES> 0 <RECEIVABLES> 234,678 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 63,531,359 <DEPRECIATION> (38,275,755) <TOTAL-ASSETS> 36,367,406 <CURRENT-LIABILITIES> 0 <BONDS> 41,382,609 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 0 <TOTAL-LIABILITY-AND-EQUITY> 36,367,406 <SALES> 7,345,415 <TOTAL-REVENUES> 17,007,452 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 5,657,173 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 2,139,050 <INCOME-PRETAX> 0 <INCOME-TAX> 0 <INCOME-CONTINUING> 9,211,229 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 9,211,229 <EPS-PRIMARY> 0 <EPS-DILUTED> 0