<ARTICLE> 5 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-2000 <PERIOD-END> SEP-30-2000 <CASH> 3,259,000 <SECURITIES> 0 <RECEIVABLES> 2,786,000 <ALLOWANCES> (244,000) <INVENTORY> 0 <CURRENT-ASSETS> 5,954,000 <PP&E> 91,602,000 <DEPRECIATION> (64,773,000) <TOTAL-ASSETS> 34,753,000 <CURRENT-LIABILITIES> 7,693,000 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 101,000 <OTHER-SE> 26,794,000 <TOTAL-LIABILITY-AND-EQUITY> 34,753,000 <SALES> 11,105,000 <TOTAL-REVENUES> 11,580,000 <CGS> 4,958,000 <TOTAL-COSTS> 4,958,000 <OTHER-EXPENSES> 3,314,000 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 527,000 <INCOME-PRETAX> 2,781,000 <INCOME-TAX> 0 <INCOME-CONTINUING> 2,781,000 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 2,781,000 <EPS-BASIC> 0.270 <EPS-DILUTED> 0.270