<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-START> JAN-01-2000 <PERIOD-END> JUN-30-2000 <CASH> 4,018 <SECURITIES> 62,521 <RECEIVABLES> 55,461 <ALLOWANCES> 1,832 <INVENTORY> 9,264 <CURRENT-ASSETS> 78,551 <PP&E> 386,284 <DEPRECIATION> 123,696 <TOTAL-ASSETS> 670,565 <CURRENT-LIABILITIES> 66,650 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 10,698 <OTHER-SE> 223,978 <TOTAL-LIABILITY-AND-EQUITY> 670,565 <SALES> 159,243 <TOTAL-REVENUES> 159,243 <CGS> 90,045 <TOTAL-COSTS> 90,045 <OTHER-EXPENSES> 44,795 <LOSS-PROVISION> 762 <INTEREST-EXPENSE> 11,796 <INCOME-PRETAX> 11,845 <INCOME-TAX> 4,235 <INCOME-CONTINUING> 7,610 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 7,610 <EPS-BASIC> .89 <EPS-DILUTED> .89