<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-END> MAR-31-1998 <CASH> 131,061 <SECURITIES> 0 <RECEIVABLES> 49,097 <ALLOWANCES> 0 <INVENTORY> 17,587 <CURRENT-ASSETS> 240,570 <PP&E> 5,887,018 <DEPRECIATION> 2,408,264 <TOTAL-ASSETS> 3,745,366 <CURRENT-LIABILITIES> 100,810 <BONDS> 0 <COMMON> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 0 <TOTAL-LIABILITY-AND-EQUITY> 3,745,366 <SALES> 0 <TOTAL-REVENUES> 491,491 <CGS> 0 <TOTAL-COSTS> 442,922 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 4,285 <INCOME-PRETAX> 44,284 <INCOME-TAX> 0 <INCOME-CONTINUING> 44,284 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 44,284 <EPS-PRIMARY> 6.76 <EPS-DILUTED> 6.76