<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> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<CASH> 41,5000
<SECURITIES> 76,600
<RECEIVABLES> 237,800
<ALLOWANCES> (4,400)
<INVENTORY> 310,000
<CURRENT-ASSETS> 798,700
<PP&E> 2,588,800
<DEPRECIATION> (1,258,000)
<TOTAL-ASSETS> 3,532,100
<CURRENT-LIABILITIES> 419,100
<BONDS> 1,125,800
0
0
<COMMON> 117,000
<OTHER-SE> 1,289,200
<TOTAL-LIABILITY-AND-EQUITY> 3,532,100
<SALES> 1,555,000
<TOTAL-REVENUES> 1,555,000
<CGS> 1,114,400
<TOTAL-COSTS> 1,420,600
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 17,200
<INCOME-PRETAX> 134,400
<INCOME-TAX> 54,700
<INCOME-CONTINUING> 78,700
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 78,700
<EPS-BASIC> 0.76
<EPS-DILUTED> 0.76
</TABLE>