<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONSOLIDATED
SUMMARY FINANCIAL STATEMENTS AND NOTES INCLUDED IN THIS FORM 10-Q AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> SEP-30-2000
<CASH> 40,000
<SECURITIES> 61,600
<RECEIVABLES> 226,100
<ALLOWANCES> (4,800)
<INVENTORY> 298,100
<CURRENT-ASSETS> 765,100
<PP&E> 2,567,400
<DEPRECIATION> (1,262,300)
<TOTAL-ASSETS> 3,498,700
<CURRENT-LIABILITIES> 401,100
<BONDS> 1,171,700
0
0
<COMMON> 117,000
<OTHER-SE> 1,231,000
<TOTAL-LIABILITY-AND-EQUITY> 3,498,700
<SALES> 2,207,400
<TOTAL-REVENUES> 2,207,400
<CGS> 1,668,600
<TOTAL-COSTS> 2,074,700
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 29,800
<INCOME-PRETAX> 102,900
<INCOME-TAX> 64,400
<INCOME-CONTINUING> 37,800
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 37,800
<EPS-BASIC> 0.36
<EPS-DILUTED> 0.36
</TABLE>