<ARTICLE> 5 <RESTATED> <MULTIPLIER> 1,000 <PERIOD-TYPE> 12-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-END> DEC-31-1997 <CASH> 171,438 <SECURITIES> 8,021 <RECEIVABLES> 151,201 <ALLOWANCES> 0 <INVENTORY> 51,097 <CURRENT-ASSETS> 512,613 <PP&E> 890,085 <DEPRECIATION> 475,077 <TOTAL-ASSETS> 1,148,364 <CURRENT-LIABILITIES> 381,555 <BONDS> 109,986 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 81,326 <OTHER-SE> 528,922 <TOTAL-LIABILITY-AND-EQUITY> 1,148,364 <SALES> 1,919,366 <TOTAL-REVENUES> 1,919,366 <CGS> 883,187 <TOTAL-COSTS> 1,763,646 <OTHER-EXPENSES> 31,748 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 8,822 <INCOME-PRETAX> 115,150 <INCOME-TAX> 70,478 <INCOME-CONTINUING> 44,672 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 44,672 <EPS-PRIMARY> .55 <EPS-DILUTED> .55