<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> 2,485,095 2,254,369 2,331,629 <SECURITIES> 0 0 0 <RECEIVABLES> 1,349,966 1,334,468 1,152,907 <ALLOWANCES> 0 0 0 <INVENTORY> 0 0 0 <CURRENT-ASSETS> 3,835,061 3,588,837 3,484,536 <PP&E> 63,290,704 63,242,866 63,202,036 <DEPRECIATION> 13,264,797 14,168,915 15,058,876 <TOTAL-ASSETS> 54,187,433 52,928,968 51,883,592 <CURRENT-LIABILITIES> 1,088,882 883,585 791,628 <BONDS> 0 0 0 <PREFERRED-MANDATORY> 0 0 0 <PREFERRED> 0 0 0 <COMMON> 0 0 0 <OTHER-SE> 53,098,551 52,045,383 51,041,964 <TOTAL-LIABILITY-AND-EQUITY> 54,187,433 52,928,968 51,833,592 <SALES> 0 0 0 <TOTAL-REVENUES> 1,862,918 3,622,333 5,297,219 <CGS> 0 0 0 <TOTAL-COSTS> 1,007,658 2,015,379 3,024,631 <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> 910,819 1,706,910 2,429,468 <EPS-PRIMARY> 0 0 0 <EPS-DILUTED> 0 0 0