<ARTICLE> 5 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> DEC-31-1997 <CASH> 173,034 <SECURITIES> 0 <RECEIVABLES> 400,963 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 0 <PP&E> 19,867,258 <DEPRECIATION> 13,328,036 <TOTAL-ASSETS> 13,609,386 <CURRENT-LIABILITIES> 12,513,387 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 1,095,999 <TOTAL-LIABILITY-AND-EQUITY> 13,609,386 <SALES> 9,644,320 <TOTAL-REVENUES> 9,644,320 <CGS> 0 <TOTAL-COSTS> 7,597,981 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 846,609 <INCOME-PRETAX> 1,215,899 <INCOME-TAX> 0 <INCOME-CONTINUING> 0 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 1,215,899 <EPS-PRIMARY> 0 <EPS-DILUTED> 0