<ARTICLE> 5
       
                                              
<PERIOD-TYPE>                                    YEAR
<FISCAL-YEAR-END>                                              DEC-31-1998
<PERIOD-END>                                                   DEC-31-1998
<CASH>                                                            13423701
<SECURITIES>                                                             0
<RECEIVABLES>                                                       850748
<ALLOWANCES>                                                             0
<INVENTORY>                                                              0
<CURRENT-ASSETS>                                                         0
<PP&E>                                                            82184577
<DEPRECIATION>                                                    56439234
<TOTAL-ASSETS>                                                    40019792
<CURRENT-LIABILITIES>                                                    0
<BONDS>                                                                  0
<COMMON>                                                                 0
<PREFERRED-MANDATORY>                                                    0
<PREFERRED>                                                              0
<OTHER-SE>                                                        30152885
<TOTAL-LIABILITY-AND-EQUITY>                                      40019792
<SALES>                                                                  0
<TOTAL-REVENUES>                                                  10055914
<CGS>                                                                    0
<TOTAL-COSTS>                                                            0
<OTHER-EXPENSES>                                                   4767960
<LOSS-PROVISION>                                                         0
<INTEREST-EXPENSE>                                                       0
<INCOME-PRETAX>                                                    5287954
<INCOME-TAX>                                                             0
<INCOME-CONTINUING>                                                5287954
<DISCONTINUED>                                                           0
<EXTRAORDINARY>                                                          0
<CHANGES>                                                                0
<NET-INCOME>                                                       5287954
<EPS-PRIMARY>                                                         7.90
<EPS-DILUTED>                                                            0