<TABLE> <S> <C>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> OTHER<F1>
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-18-2000
<CASH> 8,395
<SECURITIES> 0
<RECEIVABLES> 115,722
<ALLOWANCES> 4,763
<INVENTORY> 18,923
<CURRENT-ASSETS> 149,225
<PP&E> 540,147
<DEPRECIATION> 299,758
<TOTAL-ASSETS> 662,638
<CURRENT-LIABILITIES> 161,775
<BONDS> 4,365
0
0
<COMMON> 3,600
<OTHER-SE> 472,495
<TOTAL-LIABILITY-AND-EQUITY> 662,638
<SALES> 367,407
<TOTAL-REVENUES> 367,407
<CGS> 191,877
<TOTAL-COSTS> 124,242
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 112
<INCOME-PRETAX> 50,655
<INCOME-TAX> 20,066
<INCOME-CONTINUING> 30,589
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 30,589
<EPS-BASIC> 1.13
<EPS-DILUTED> 1.13
<FN>
<F1> 6 ACCOUNTING PERIODS
</FN>
</TABLE>