<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

                             
<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
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          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