<ARTICLE> 5 <CIK> 0000789791 <NAME> 86C.TXT <MULTIPLIER> 1 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-END> MAR-31-1998 <CASH> 133,223 <SECURITIES> 0 <RECEIVABLES> 139,479 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 272,702 <PP&E> 14,551,370 <DEPRECIATION> 12,157,730 <TOTAL-ASSETS> 2,666,342 <CURRENT-LIABILITIES> 37,159 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 2,629,183 <TOTAL-LIABILITY-AND-EQUITY> 2,666,342 <SALES> 269,203 <TOTAL-REVENUES> 272,069 <CGS> 0 <TOTAL-COSTS> 258,811 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 13,258 <INCOME-TAX> 0 <INCOME-CONTINUING> 13,258 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 13,258 <EPS-PRIMARY> 0.68 <EPS-DILUTED> 0