<TABLE> <S> <C>
<ARTICLE> 5
<CIK> 0000791231
<NAME> 85B
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> SEP-30-2000
<CASH> 72,091
<SECURITIES> 0
<RECEIVABLES> 90,659
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 162,750
<PP&E> 5,317,256
<DEPRECIATION> 4,501,976
<TOTAL-ASSETS> 978,030
<CURRENT-LIABILITIES> 21,081
<BONDS> 0
0
0
<COMMON> 0
<OTHER-SE> 956,949
<TOTAL-LIABILITY-AND-EQUITY> 978,030
<SALES> 444,585
<TOTAL-REVENUES> 448,521
<CGS> 0
<TOTAL-COSTS> 260,335
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 188,186
<INCOME-TAX> 0
<INCOME-CONTINUING> 188,186
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 188,186
<EPS-BASIC> 23.32
<EPS-DILUTED> 0
</TABLE>