<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                       1,709,301
<SECURITIES>                                         0
<RECEIVABLES>                                  703,696
<ALLOWANCES>                                     5,000
<INVENTORY>                                          0
<CURRENT-ASSETS>                             2,407,997
<PP&E>                                      11,123,307
<DEPRECIATION>                               9,264,523
<TOTAL-ASSETS>                               4,266,781
<CURRENT-LIABILITIES>                          329,586
<BONDS>                                        144,594
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                   3,792,601
<TOTAL-LIABILITY-AND-EQUITY>                 4,266,781
<SALES>                                      3,616,524
<TOTAL-REVENUES>                             5,160,629
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                             2,165,200
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              73,121
<INCOME-PRETAX>                              2,922,308
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                          2,922,308
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 2,922,308
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0