<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE BALANCE
SHEETS 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
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> 220,333 330,025 258,190
<SECURITIES> 0 0 0
<RECEIVABLES> 171,247 100,221 85,714
<ALLOWANCES> 0 0 0
<INVENTORY> 0 0 0
<CURRENT-ASSETS> 391,580 430,246 343,904
<PP&E> 2,155,493 1,845,746 1,606,686
<DEPRECIATION> 1,386,272 1,206,312 1,071,673
<TOTAL-ASSETS> 1,160,801 1,069,680 878,917
<CURRENT-LIABILITIES> 0 0 0
<BONDS> 0 0 0
<PREFERRED-MANDATORY> 0 0 0
<PREFERRED> 0 0 0
<COMMON> 0 0 0
<OTHER-SE> 1,160,801 1,069,680 878,917
<TOTAL-LIABILITY-AND-EQUITY> 1,160,801 1,069,680 878,917
<SALES> 0 0 0
<TOTAL-REVENUES> 74,763 133,386 189,278
<CGS> 0 0 0
<TOTAL-COSTS> 32,738 62,087 89,036
<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> 71,941 138,608 200,806
<EPS-PRIMARY> 0 0 0
<EPS-DILUTED> 0 0 0