<ARTICLE> 5 <PERIOD-TYPE> 12-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-START> JAN-01-1997 <PERIOD-END> DEC-31-1997 <CASH> 1,442,855 <SECURITIES> 0 <RECEIVABLES> 106,423 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 1,549,278 <PP&E> 4,566,706 <DEPRECIATION> 3,333,813 <TOTAL-ASSETS> 2,782,171 <CURRENT-LIABILITIES> 102,121 <BONDS> 22,990 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 2,657,060 <TOTAL-LIABILITY-AND-EQUITY> 2,782,171 <SALES> 0 <TOTAL-REVENUES> 853,046 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 575,377 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 39,438 <INCOME-PRETAX> 238,231 <INCOME-TAX> 0 <INCOME-CONTINUING> 238,231 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 238,321 <EPS-PRIMARY> 0 <EPS-DILUTED> 0