<ARTICLE> 5
<CIK> 0000789789
<NAME> 86A.
<MULTIPLIER> 1
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                         118,873
<SECURITIES>                                         0
<RECEIVABLES>                                   79,774
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                               198,647
<PP&E>                                       7,095,382
<DEPRECIATION>                               6,293,605
<TOTAL-ASSETS>                               1,000,424
<CURRENT-LIABILITIES>                           21,145
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                     979,279
<TOTAL-LIABILITY-AND-EQUITY>                 1,000,424
<SALES>                                        605,964
<TOTAL-REVENUES>                               614,396
<CGS>                                                0
<TOTAL-COSTS>                                1,082,123
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                              (467,727)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                          (467,727)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 (467,727)
<EPS-PRIMARY>                                  (45.71)
<EPS-DILUTED>                                        0