<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> JUN-30-1997 <CASH> 69,782 <SECURITIES> 400 <RECEIVABLES> 24,481 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 94,663 <PP&E> 3,011,349 <DEPRECIATION> 765,672 <TOTAL-ASSETS> 2,340,340 <CURRENT-LIABILITIES> 5,841 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 2,196,546 <TOTAL-LIABILITY-AND-EQUITY> 2,340,340 <SALES> 0 <TOTAL-REVENUES> 138,923 <CGS> 0 <TOTAL-COSTS> 76,881 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 62,042 <INCOME-TAX> 0 <INCOME-CONTINUING> 62,042 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 62,042 <EPS-PRIMARY> 0.37 <EPS-DILUTED> 0.37