<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-END> MAR-31-1998 <CASH> 1,533,370 <SECURITIES> 0 <RECEIVABLES> 1,315,182 <ALLOWANCES> (730,668) <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 52,102,596 <DEPRECIATION> (27,636,892) <TOTAL-ASSETS> 36,524,903 <CURRENT-LIABILITIES> 0 <BONDS> 7,140,831 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 27,682,785 <TOTAL-LIABILITY-AND-EQUITY> 36,524,903 <SALES> 2,396,359 <TOTAL-REVENUES> 2,443,908 <CGS> 1,183,960 <TOTAL-COSTS> 1,783,546 <OTHER-EXPENSES> 316,966 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 199,860 <INCOME-PRETAX> 143,536 <INCOME-TAX> 0 <INCOME-CONTINUING> 143,536 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 143,536 <EPS-PRIMARY> 0 <EPS-DILUTED> 0