<ARTICLE> 5 <CIK> 0000882342 <NAME> 90CC. <MULTIPLIER> 1 <PERIOD-TYPE> 12-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-END> DEC-31-1997 <CASH> 87,423 <SECURITIES> 0 <RECEIVABLES> 69,891 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 157,314 <PP&E> 5,751,870 <DEPRECIATION> 4,497,380 <TOTAL-ASSETS> 1,411,804 <CURRENT-LIABILITIES> 23,946 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 1,387,858 <TOTAL-LIABILITY-AND-EQUITY> 1,411,804 <SALES> 661,475 <TOTAL-REVENUES> 668,217 <CGS> 0 <TOTAL-COSTS> 562,477 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 105,740 <INCOME-TAX> 0 <INCOME-CONTINUING> 105,740 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 105,740 <EPS-PRIMARY> 13.90 <EPS-DILUTED> 0