<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-Q FOR THE SIX MONTHS ENDED JUNE 30, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCES TO SUCH FINANCIAL STATEMENTS. </LEGEND> <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> JUN-30-1997 <CASH> 741,871 <SECURITIES> 0 <RECEIVABLES> 538,425 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 1,280,296 <PP&E> 37,774,251 <DEPRECIATION> 18,705,454 <TOTAL-ASSETS> 21,795,781 <CURRENT-LIABILITIES> 484,236 <BONDS> 12,591,452 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 8,720,093 <TOTAL-LIABILITY-AND-EQUITY> 27,795,781 <SALES> 0 <TOTAL-REVENUES> 2,254,915 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 660,252 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 517,560 <INCOME-PRETAX> 1,077,130 <INCOME-TAX> 0 <INCOME-CONTINUING> 1,077,130 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 1,077,130 <EPS-PRIMARY> 26.66 <EPS-DILUTED> 26.66