<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> JUN-30-1998 <CASH> 144,711 <SECURITIES> 1,191 <RECEIVABLES> 45,062 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 190,964 <PP&E> 4,001,642 <DEPRECIATION> 1,694,201 <TOTAL-ASSETS> 2,498,405 <CURRENT-LIABILITIES> 23,193 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 2,475,212 <TOTAL-LIABILITY-AND-EQUITY> 2,498,405 <SALES> 0 <TOTAL-REVENUES> 252,340 <CGS> 0 <TOTAL-COSTS> 52,510 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 199,830 <INCOME-TAX> 0 <INCOME-CONTINUING> 199,830 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 199,830 <EPS-PRIMARY> 22.61 <EPS-DILUTED> 22.61