<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-START> JAN-01-1996 <PERIOD-END> JUN-30-1996 <CASH> 948,285 <SECURITIES> 0 <RECEIVABLES> 140,253 <ALLOWANCES> 10,000 <INVENTORY> 0 <CURRENT-ASSETS> 1,078,538 <PP&E> 10,141,623 <DEPRECIATION> 7,057,462 <TOTAL-ASSETS> 4,162,699 <CURRENT-LIABILITIES> 256,722 <BONDS> 68,750 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 3,837,227 <TOTAL-LIABILITY-AND-EQUITY> 4,162,699 <SALES> 0 <TOTAL-REVENUES> 593,627 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 209,619 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 2,251 <INCOME-PRETAX> 348,008 <INCOME-TAX> 0 <INCOME-CONTINUING> 348,008 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 348,008 <EPS-PRIMARY> 0 <EPS-DILUTED> 0