<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from SEC Form
10-Q and is qualified in its entirety by reference to such financial statements.
</LEGEND>
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               SEP-30-1996
<CASH>                                          31,205
<SECURITIES>                                         0
<RECEIVABLES>                                  179,257
<ALLOWANCES>                                     2,306
<INVENTORY>                                     98,594
<CURRENT-ASSETS>                               347,236
<PP&E>                                       1,227,708
<DEPRECIATION>                                 355,048
<TOTAL-ASSETS>                               1,426,654
<CURRENT-LIABILITIES>                          281,093
<BONDS>                                        175,533
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           415
<OTHER-SE>                                     753,182
<TOTAL-LIABILITY-AND-EQUITY>                 1,426,654
<SALES>                                        917,667
<TOTAL-REVENUES>                               917,667
<CGS>                                          681,021
<TOTAL-COSTS>                                  681,021
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 494
<INCOME-PRETAX>                                146,492
<INCOME-TAX>                                    58,597
<INCOME-CONTINUING>                            107,265
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   107,265
<EPS-PRIMARY>                                     2.60
<EPS-DILUTED>                                     2.58