<ARTICLE> 5 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> SEP-30-1999 <CASH> 4,791,079 <SECURITIES> 0 <RECEIVABLES> 1,064,216 <ALLOWANCES> (490,956) <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 53,119,575 <DEPRECIATION> (30,994,291) <TOTAL-ASSETS> 37,426,549 <CURRENT-LIABILITIES> 0 <BONDS> 7,200,000 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 27,342,189 <TOTAL-LIABILITY-AND-EQUITY> 37,426,549 <SALES> 7,543,604 <TOTAL-REVENUES> 7,699,873 <CGS> 3,606,053 <TOTAL-COSTS> 5,275,186 <OTHER-EXPENSES> 1,274,988 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 548,752 <INCOME-PRETAX> 600,947 <INCOME-TAX> 0 <INCOME-CONTINUING> 600,947 <DISCONTINUED> 0 <EXTRAORDINARY> (218,404) <CHANGES> 0 <NET-INCOME> 382,543 <EPS-BASIC> 0 <EPS-DILUTED> 0