<ARTICLE> 5
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               SEP-30-2000
<CASH>                                           4,627
<SECURITIES>                                         0
<RECEIVABLES>                                  109,715
<ALLOWANCES>                                     4,773
<INVENTORY>                                    101,498
<CURRENT-ASSETS>                               260,380
<PP&E>                                       1,352,898
<DEPRECIATION>                                 713,112
<TOTAL-ASSETS>                               2,180,206
<CURRENT-LIABILITIES>                          195,689
<BONDS>                                      1,007,070
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        44,807
<OTHER-SE>                                     627,943
<TOTAL-LIABILITY-AND-EQUITY>                 2,180,206
<SALES>                                        823,765
<TOTAL-REVENUES>                               823,765
<CGS>                                          661,506
<TOTAL-COSTS>                                  661,506
<OTHER-EXPENSES>                                29,922
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              64,988
<INCOME-PRETAX>                                 87,495
<INCOME-TAX>                                    22,486
<INCOME-CONTINUING>                             65,009
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    65,009
<EPS-BASIC>                                       2.38
<EPS-DILUTED>                                     2.34