<TABLE> <S> <C>
<ARTICLE> 5
<CIK> 0000791230
<NAME> 85A
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<CASH> 64,497
<SECURITIES> 0
<RECEIVABLES> 81,352
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 145,849
<PP&E> 7,399,203
<DEPRECIATION> 6,855,545
<TOTAL-ASSETS> 689,507
<CURRENT-LIABILITIES> 17,969
<BONDS> 0
0
0
<COMMON> 0
<OTHER-SE> 671,538
<TOTAL-LIABILITY-AND-EQUITY> 689,507
<SALES> 353,329
<TOTAL-REVENUES> 355,877
<CGS> 0
<TOTAL-COSTS> 195,186
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 160,691
<INCOME-TAX> 0
<INCOME-CONTINUING> 160,691
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 160,691
<EPS-BASIC> 16.55
<EPS-DILUTED> 0
</TABLE>