<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 STATEMENTS 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 RESPECTIVE PERIODS THEN ENDED.
</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> 795,560 737,833 691,302
<SECURITIES> 0 0 0
<RECEIVABLES> 475,894 439,561 414,819
<ALLOWANCES> 0 0 0
<INVENTORY> 0 0 0
<CURRENT-ASSETS> 1,271,454 1,177,394 1,106,121
<PP&E> 17,620,649 17,603,998 17,629,317
<DEPRECIATION> 5,788,713 6,035,713 6,280,263
<TOTAL-ASSETS> 13,103,390 12,745,679 12,455,175
<CURRENT-LIABILITIES> 0 0 0
<BONDS> 0 0 0
<PREFERRED-MANDATORY> 0 0 0
<PREFERRED> 0 0 0
<COMMON> 0 0 0
<OTHER-SE> 13,103,390 12,745,679 12,455,175
<TOTAL-LIABILITY-AND-EQUITY> 13,103,390 12,745,679 12,455,175
<SALES> 0 0 0
<TOTAL-REVENUES> 465,267 873,492 1,295,796
<CGS> 0 0 0
<TOTAL-COSTS> 266,190 532,283 800,164
<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> 211,265 369,426 540,627
<EPS-PRIMARY> 0 0 0
<EPS-DILUTED> 0 0 0