<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> JUN-30-1999 <CASH> 1,081,703 <SECURITIES> 0 <RECEIVABLES> 343,269 <ALLOWANCES> (22,324) <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 20,329,571 <DEPRECIATION> (9,589,133) <TOTAL-ASSETS> 15,432,320 <CURRENT-LIABILITIES> 0 <BONDS> 1,650,000 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 12,713,854 <TOTAL-LIABILITY-AND-EQUITY> 15,432,320 <SALES> 1,603,697 <TOTAL-REVENUES> 1,625,823 <CGS> 684,984 <TOTAL-COSTS> 1,215,146 <OTHER-EXPENSES> 177,905 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 62,779 <INCOME-PRETAX> 169,993 <INCOME-TAX> 0 <INCOME-CONTINUING> 169,993 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 169,993 <EPS-BASIC> 0 <EPS-DILUTED> 0