<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED STATEMENT OF EARNINGS FOR YEAR ENDED DECEMBER 31, 1999, AND THE CONSOLIDATED BALANCE SHEET AS OF DECEMBER 31, 1999 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-END> DEC-31-1999 <CASH> 52,834 <SECURITIES> 0 <RECEIVABLES> 339,413 <ALLOWANCES> 9,722 <INVENTORY> 178,734 <CURRENT-ASSETS> 624,724 <PP&E> 3,149,897 <DEPRECIATION> 1,510,182 <TOTAL-ASSETS> 2,839,493 <CURRENT-LIABILITIES> 386,642 <BONDS> 698,862 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 139,705 <OTHER-SE> 1,183,948 <TOTAL-LIABILITY-AND-EQUITY> 2,839,493 <SALES> 2,355,778 <TOTAL-REVENUES> 2,355,778 <CGS> 1,769,327 <TOTAL-COSTS> 1,769,327 <OTHER-EXPENSES> 22,714 <LOSS-PROVISION> (109) <INTEREST-EXPENSE> 48,576 <INCOME-PRETAX> 351,561 <INCOME-TAX> 111,868 <INCOME-CONTINUING> 239,693 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 239,693 <EPS-BASIC> 2.38 <EPS-DILUTED> 2.35