<ARTICLE> 5 <PERIOD-TYPE> 12-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> DEC-31-1997 <CASH> 363,032 <SECURITIES> 0 <RECEIVABLES> 1,016,808 <ALLOWANCES> (85,436) <INVENTORY> 0 <CURRENT-ASSETS> 1,644,310 <PP&E> 86,431,357 <DEPRECIATION> (50,186,043) <TOTAL-ASSETS> 44,982,801 <CURRENT-LIABILITIES> 3,014,191 <BONDS> 22,773,095 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 19,195,515 <TOTAL-LIABILITY-AND-EQUITY> 44,982,801 <SALES> 0 <TOTAL-REVENUES> 26,642,247 <CGS> 0 <TOTAL-COSTS> 29,355,630 <OTHER-EXPENSES> (67,997,739) <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1,923,226 <INCOME-PRETAX> 62,735,041 <INCOME-TAX> 0 <INCOME-CONTINUING> 62,735,041 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 62,735,041 <EPS-PRIMARY> 387.70 <EPS-DILUTED> 387.70