<ARTICLE>      5
<LEGEND>
                This schedule contains summary financial information extracted
                from the financial statements included in the Company's Form
                10-Q for the quarterly period ended March 31, 2000 and is
                qualified in its entirety by reference to such financial
                information.
</LEGEND>
<MULTIPLIER>    1,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                              DEC-31-2000
<PERIOD-START>                                 JAN-01-2000
<PERIOD-END>                                   MAR-31-2000
<CASH>                                              55,000
<SECURITIES>                                             0
<RECEIVABLES>                                       69,300
<ALLOWANCES>                                             0
<INVENTORY>                                         43,100
<CURRENT-ASSETS>                                    26,000
<PP&E>                                             491,800
<DEPRECIATION>                                     263,100
<TOTAL-ASSETS>                                     562,800
<CURRENT-LIABILITIES>                              133,500
<BONDS>                                            130,700
<PREFERRED-MANDATORY>                                    0
<PREFERRED>                                              0
<COMMON>                                             4,300
<OTHER-SE>                                         220,400
<TOTAL-LIABILITY-AND-EQUITY>                       562,800
<SALES>                                            107,700
<TOTAL-REVENUES>                                   107,700
<CGS>                                               79,500
<TOTAL-COSTS>                                       79,500
<OTHER-EXPENSES>                                         0
<LOSS-PROVISION>                                         0
<INTEREST-EXPENSE>                                   3,000
<INCOME-PRETAX>                                      7,400
<INCOME-TAX>                                         2,700
<INCOME-CONTINUING>                                  5,100
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                         5,100
<EPS-BASIC>                                            .35
<EPS-DILUTED>                                          .35