<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> JUN-30-1999 <CASH> 3,126,714 <SECURITIES> 0 <RECEIVABLES> 0 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 83,147,455 <DEPRECIATION> (57,337,141) <TOTAL-ASSETS> 32,180,970 <CURRENT-LIABILITIES> 0 <BONDS> 35,613,296 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 0 <TOTAL-LIABILITY-AND-EQUITY> 32,180,970 <SALES> 7,763,533 <TOTAL-REVENUES> 7,821,882 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 5,893,564 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1,662,749 <INCOME-PRETAX> 265,569 <INCOME-TAX> 0 <INCOME-CONTINUING> 0 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 265,569 <EPS-BASIC> 0 <EPS-DILUTED> 0