<ARTICLE> 5 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-START> JAN-01-1996 <PERIOD-END> SEP-30-1996 <CASH> 4,392,023 <SECURITIES> 0 <RECEIVABLES> 1,204,775 <ALLOWANCES> 15,000 <INVENTORY> 0 <CURRENT-ASSETS> 5,581,798 <PP&E> 9,284,509 <DEPRECIATION> 8,163,449 <TOTAL-ASSETS> 6,702,858 <CURRENT-LIABILITIES> 4,102,376 <BONDS> 509,774 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 2,090,708 <TOTAL-LIABILITY-AND-EQUITY> 6,702,858 <SALES> 2,767,075 <TOTAL-REVENUES> 3,448,223 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 1,199,455 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 42,749 <INCOME-PRETAX> 2,206,019 <INCOME-TAX> 0 <INCOME-CONTINUING> 2,206,019 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 2,206,019 <EPS-PRIMARY> 0 <EPS-DILUTED> 0