<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
Financial Statements contained in Item 1 of Form 10-Q for the period ended March
31, 1999 and is qualified in its entirety by reference to such financial
statements. Figures are rounded to the nearest 100,000 (except EPS).
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                          67,000
<SECURITIES>                                    40,300
<RECEIVABLES>                                  198,500
<ALLOWANCES>                                         0
<INVENTORY>                                    206,900
<CURRENT-ASSETS>                               533,000
<PP&E>                                       1,575,400
<DEPRECIATION>                             (1,110,200)
<TOTAL-ASSETS>                               1,069,600
<CURRENT-LIABILITIES>                          252,400
<BONDS>                                        229,800
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        45,700
<OTHER-SE>                                     299,100
<TOTAL-LIABILITY-AND-EQUITY>                 1,069,600
<SALES>                                        304,800
<TOTAL-REVENUES>                               304,800
<CGS>                                          262,900
<TOTAL-COSTS>                                  262,900
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               3,800
<INCOME-PRETAX>                                  3,500
<INCOME-TAX>                                     1,400
<INCOME-CONTINUING>                              2,100
<DISCONTINUED>                                   4,400
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     6,500
<EPS-PRIMARY>                                     0.14
<EPS-DILUTED>                                     0.14