<ARTICLE> 5 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-END> SEP-30-1998 <CASH> 2,942,545 <SECURITIES> 0 <RECEIVABLES> 1,108,833 <ALLOWANCES> (602,041) <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 52,359,481 <DEPRECIATION> (28,760,650) <TOTAL-ASSETS> 37,114,826 <CURRENT-LIABILITIES> 0 <BONDS> 7,110,083 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 27,817,728 <TOTAL-LIABILITY-AND-EQUITY> 37,114,826 <SALES> 7,421,788 <TOTAL-REVENUES> 7,667,522 <CGS> 3,532,306 <TOTAL-COSTS> 5,255,650 <OTHER-EXPENSES> 1,041,832 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 593,898 <INCOME-PRETAX> 776,142 <INCOME-TAX> 0 <INCOME-CONTINUING> 776,142 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 776,142 <EPS-PRIMARY> 0 <EPS-DILUTED> 0