<ARTICLE> 5 <MULTIPLIER> 1000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> JUN-30-1999 <CASH> 113 <SECURITIES> 0 <RECEIVABLES> 4,900 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 6,607 <PP&E> 214,728 <DEPRECIATION> 72,625 <TOTAL-ASSETS> 251,430 <CURRENT-LIABILITIES> 6,577 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 55,762 <OTHER-SE> 114,507 <TOTAL-LIABILITY-AND-EQUITY> 251,430 <SALES> 17,629 <TOTAL-REVENUES> 20,050 <CGS> 2,107 <TOTAL-COSTS> 2,107 <OTHER-EXPENSES> 10,066 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1,071 <INCOME-PRETAX> 7,527 <INCOME-TAX> 1,447 <INCOME-CONTINUING> 6,080 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 6,080 <EPS-BASIC> 0.72 <EPS-DILUTED> 0.72