<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> USD
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> MAR-31-2000
<EXCHANGE-RATE> 1
<CASH> 229,900
<SECURITIES> 0
<RECEIVABLES> 194,600
<ALLOWANCES> (4,300)
<INVENTORY> 135,400
<CURRENT-ASSETS> 799,100
<PP&E> 1,528,300
<DEPRECIATION> (917,000)
<TOTAL-ASSETS> 2,486,300
<CURRENT-LIABILITIES> 715,600
<BONDS> 0
800
0
<COMMON> 0
<OTHER-SE> 93,300
<TOTAL-LIABILITY-AND-EQUITY> 2,486,300
<SALES> 364,900
<TOTAL-REVENUES> 375,100
<CGS> 212,900
<TOTAL-COSTS> 332,000
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 5,300
<INCOME-PRETAX> 37,800
<INCOME-TAX> 13,600
<INCOME-CONTINUING> 24,200
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 24,200
<EPS-BASIC> 0.35
<EPS-DILUTED> 0.35
</TABLE>