<ARTICLE> 5 <PERIOD-TYPE> 12-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-END> DEC-31-1997 <CASH> 146,113 <SECURITIES> 0 <RECEIVABLES> 32,624 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 216,599 <PP&E> 5,371,755 <DEPRECIATION> 3,190,183 <TOTAL-ASSETS> 2,430,465 <CURRENT-LIABILITIES> 176,765 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 2,253,700 <TOTAL-LIABILITY-AND-EQUITY> 2,430,465 <SALES> 3,204,444 <TOTAL-REVENUES> 3,250,726 <CGS> 2,774,813 <TOTAL-COSTS> 2,774,813 <OTHER-EXPENSES> 520,987 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> (45,074) <INCOME-TAX> 0 <INCOME-CONTINUING> (45,074) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (45,074) <EPS-PRIMARY> 4.95 <EPS-DILUTED> 4.95