<ARTICLE> 5
<LEGEND>
THIS RESTATED FINANCIAL DATA SCHEDULE FOR 1997 RESULTED FROM THE STOCK SPLIT
EFFECTED MARCH 10, 1999.  THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE CONSOLIDATED STATEMENT OF EARNINGS FOR THE YEAR ENDED
DECEMBER 31, 1997, AND THE CONSOLIDATED BALANCE SHEET AS OF DECEMBER 31,
1997 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR  
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                         128,566
<SECURITIES>                                         0
<RECEIVABLES>                                  196,937
<ALLOWANCES>                                     7,548
<INVENTORY>                                    132,359
<CURRENT-ASSETS>                               487,132
<PP&E>                                       2,120,200
<DEPRECIATION>                               1,311,781
<TOTAL-ASSETS>                               1,449,246
<CURRENT-LIABILITIES>                          207,697
<BONDS>                                         81,931
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        46,573
<OTHER-SE>                                     944,924
<TOTAL-LIABILITY-AND-EQUITY>                 1,449,246
<SALES>                                      1,678,581
<TOTAL-REVENUES>                             1,678,581
<CGS>                                        1,199,453
<TOTAL-COSTS>                                1,199,453
<OTHER-EXPENSES>                                 5,112
<LOSS-PROVISION>                                   662
<INTEREST-EXPENSE>                               6,914
<INCOME-PRETAX>                                300,501
<INCOME-TAX>                                    91,356
<INCOME-CONTINUING>                            209,146
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   209,145
<EPS-PRIMARY>                                     2.06
<EPS-DILUTED>                                     2.03