<ARTICLE> 5 <MULTIPLIER> 1 <CURRENCY> U.S. Dollars <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> SEP-30-1997 <EXCHANGE-RATE> 1 <CASH> 88,303 <SECURITIES> 0 <RECEIVABLES> 3,200 <ALLOWANCES> 1,600 <INVENTORY> 0 <CURRENT-ASSETS> 89,903 <PP&E> 1,333,626 <DEPRECIATION> 396,258 <TOTAL-ASSETS> 1,027,271 <CURRENT-LIABILITIES> 27,671 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 999,600 <TOTAL-LIABILITY-AND-EQUITY> 1,027,671 <SALES> 0 <TOTAL-REVENUES> 177,122 <CGS> 0 <TOTAL-COSTS> 102,483 <OTHER-EXPENSES> 44,834 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 29,805 <INCOME-TAX> 0 <INCOME-CONTINUING> 29,805 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 29,805 <EPS-PRIMARY> 6.73 <EPS-DILUTED> 6.73