<ARTICLE> 5 <PERIOD-TYPE> 12-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-END> DEC-31-1998 <CASH> 271,625 <SECURITIES> 0 <RECEIVABLES> 146,938 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 427,481 <PP&E> 5,782,976 <DEPRECIATION> 3,110,060 <TOTAL-ASSETS> 3,100,397 <CURRENT-LIABILITIES> 56,464 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 3,043,933 <TOTAL-LIABILITY-AND-EQUITY> 3,100,397 <SALES> 1,665,323 <TOTAL-REVENUES> 1,685,932 <CGS> 1,185,995 <TOTAL-COSTS> 1,185,995 <OTHER-EXPENSES> 301,606 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 198,331 <INCOME-TAX> 0 <INCOME-CONTINUING> 198,331 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 198,331 <EPS-PRIMARY> 33.05 <EPS-DILUTED> 33.05