<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
QUARTERLY REPORT ON FORM 10-Q FOR THE QUARTER ENDED JUNE 30, 1999 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          16,301
<SECURITIES>                                         0
<RECEIVABLES>                                      389
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                     0
<PP&E>                                          20,744
<DEPRECIATION>                                  13,071
<TOTAL-ASSETS>                                  29,411
<CURRENT-LIABILITIES>                                0
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                      28,235
<TOTAL-LIABILITY-AND-EQUITY>                    29,411
<SALES>                                              0
<TOTAL-REVENUES>                                 5,009
<CGS>                                                0
<TOTAL-COSTS>                                    1,799
<OTHER-EXPENSES>                                 1,891
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  (212)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                              (212)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     (212)
<EPS-BASIC>                                     (1.05)<F1>
<EPS-DILUTED>                                        0
<FN>
<F1>EPS-PRIMARY REPRESENTS NET LOSS PER LIMITED PARTNERSHIP UNIT
</FN>