<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> JUN-30-1999 <CASH> 4,314,432 <SECURITIES> 168,288 <RECEIVABLES> 1,241,996 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 5,724,716 <PP&E> 15,865,532 <DEPRECIATION> (7,705,139) <TOTAL-ASSETS> 13,885,109 <CURRENT-LIABILITIES> 561,588 <BONDS> 3,564,477 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 9,759,044 <TOTAL-LIABILITY-AND-EQUITY> 13,885,109 <SALES> 0 <TOTAL-REVENUES> 1,805,497 <CGS> 0 <TOTAL-COSTS> 771,229 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 147,876 <INCOME-PRETAX> 886,392 <INCOME-TAX> 0 <INCOME-CONTINUING> 886,392 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 886,392 <EPS-BASIC> 0 <EPS-DILUTED> 0