<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE BALANCE
SHEET AT MARCH 31, 1996, JUNE 30, 1996 AND SEPTEMBER 30, 1996 (UNAUDITED) AND
THE STATEMENT OF OPERATIONS FOR THE QUARTERLY PERIOD ENDED MARCH 31, 1996,
JUNE 30, 1996 AND SEPTEMBER 30, 1996 (UNAUDITED) AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS INCLUDED AS PART OF ITS
QUARTERLY REPORT ON FORM 10-Q FOR THE PERIOD MARCH 31, 1996, JUNE 30, 1996
AND SEPTEMBER 30, 1996.
</LEGEND>
       
                                                                       
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1996             DEC-31-1996
<PERIOD-START>                             JAN-01-1996             JAN-01-1996             JAN-01-1996
<PERIOD-END>                               MAR-31-1996             JUN-30-1996             SEP-30-1996
<CASH>                                       1,628,325               1,427,492               1,594,839
<SECURITIES>                                         0                       0                       0
<RECEIVABLES>                                1,163,029               1,308,851               1,537,736
<ALLOWANCES>                                         0                       0                       0
<INVENTORY>                                          0                       0                       0
<CURRENT-ASSETS>                            22,791,354               2,736,343               2,748,575
<PP&E>                                      53,027,465              53,007,643              52,928,400
<DEPRECIATION>                               8,310,326               9,073,702               9,832,173
<TOTAL-ASSETS>                              48,152,591              47,245,010              46,350,157
<CURRENT-LIABILITIES>                          274,040                 182,040                  91,040
<BONDS>                                              0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                       0                       0
<COMMON>                                             0                       0                       0
<OTHER-SE>                                  47,878,551              47,062,970              46,259,117
<TOTAL-LIABILITY-AND-EQUITY>                48,152,591              47,245,010              46,350,157
<SALES>                                              0                       0                       0
<TOTAL-REVENUES>                             1,770,578               3,566,930               5,170,080
<CGS>                                                0                       0                       0
<TOTAL-COSTS>                                  866,190               1,730,751               2,598,158
<OTHER-EXPENSES>                                     0                       0                       0
<LOSS-PROVISION>                                     0                       0                       0
<INTEREST-EXPENSE>                                   0                       0                       0
<INCOME-PRETAX>                                      0                       0                       0
<INCOME-TAX>                                         0                       0                       0
<INCOME-CONTINUING>                                  0                       0                       0
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                   967,659               1,932,192               2,669,028
<EPS-PRIMARY>                                        0                       0                       0
<EPS-DILUTED>                                        0                       0                       0