<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 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> 1,006,105 970,731 1,055,315 <SECURITIES> 0 0 0 <RECEIVABLES> 637,746 632,869 533,907 <ALLOWANCES> 0 0 0 <INVENTORY> 0 0 0 <CURRENT-ASSETS> 1,643,851 1,603,600 1,589,222 <PP&E> 17,009,569 16,727,244 16,658,916 <DEPRECIATION> 6,322,307 6,447,308 6,663,538 <TOTAL-ASSETS> 12,331,113 11,880,536 11,584,600 <CURRENT-LIABILITIES> 17,981 7,783 4,743 <BONDS> 0 0 0 <PREFERRED-MANDATORY> 0 0 0 <PREFERRED> 0 0 0 <COMMON> 0 0 0 <OTHER-SE> 12,313,132 11,873,153 11,579,857 <TOTAL-LIABILITY-AND-EQUITY> 12,331,113 11,880,536 11,584,600 <SALES> 0 0 0 <TOTAL-REVENUES> 567,612 1,008,642 1,523,822 <CGS> 0 0 0 <TOTAL-COSTS> 257,385 512,217 766,403 <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> 340,567 514,223 799,662 <EPS-PRIMARY> 0 0 0 <EPS-DILUTED> 0 0 0