<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-END> JUN-30-1997 <CASH> 1,965,677 <SECURITIES> 0 <RECEIVABLES> 769,762 <ALLOWANCES> (41,151) <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 22,004,780 <DEPRECIATION> (9,287,396) <TOTAL-ASSETS> 24,057,418 <CURRENT-LIABILITIES> 0 <BONDS> 5,356,174 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 18,301,058 <TOTAL-LIABILITY-AND-EQUITY> 24,057,418 <SALES> 2,109,737 <TOTAL-REVENUES> 2,248,517 <CGS> 973,109 <TOTAL-COSTS> 1,433,015 <OTHER-EXPENSES> 297,081 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 198,468 <INCOME-PRETAX> 319,953 <INCOME-TAX> 0 <INCOME-CONTINUING> 319,953 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 319,953 <EPS-PRIMARY> 0 <EPS-DILUTED> 0