<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. 
<MULTIPLIER>                  1,000
<FISCAL-YEAR-END>             DEC-31-1995
<PERIOD-END>                  JUN-30-1995
<PERIOD-TYPE>                 6-MOS
       
                           
<CASH>                                          89,200
<SECURITIES>                                         0
<RECEIVABLES>                                  188,100
<ALLOWANCES>                                         0
<INVENTORY>                                    221,200
<CURRENT-ASSETS>                               520,900
<PP&E>                                       2,510,500
<DEPRECIATION>                             (1,141,000)
<TOTAL-ASSETS>                               2,648,300
<CURRENT-LIABILITIES>                          349,600
<BONDS>                                        184,500
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       117,000
<OTHER-SE>                                   1,690,000
<TOTAL-LIABILITY-AND-EQUITY>                 2,648,300
<SALES>                                      1,396,100
<TOTAL-REVENUES>                             1,396,100
<CGS>                                        1,118,800
<TOTAL-COSTS>                                1,268,000
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               4,000
<INCOME-PRETAX>                                129,200
<INCOME-TAX>                                    47,000
<INCOME-CONTINUING>                             80,600
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    80,600
<EPS-PRIMARY>                                         .75
<EPS-DILUTED>                                        0