<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONDENSED
CONSOLIDATED BALANCE SHEETS AND FROM CONSOLIDATED STATEMENTS OF EARNINGS AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                           1,271
<SECURITIES>                                         0
<RECEIVABLES>                                  581,724
<ALLOWANCES>                                         0
<INVENTORY>                                    345,235
<CURRENT-ASSETS>                               975,962
<PP&E>                                       3,483,066
<DEPRECIATION>                             (1,633,688)
<TOTAL-ASSETS>                               3,014,674
<CURRENT-LIABILITIES>                          826,947
<BONDS>                                        594,988
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        15,611
<OTHER-SE>                                   1,261,501
<TOTAL-LIABILITY-AND-EQUITY>                 3,014,674
<SALES>                                      4,462,477
<TOTAL-REVENUES>                             4,468,547
<CGS>                                        3,476,924
<TOTAL-COSTS>                                  378,766
<OTHER-EXPENSES>                               387,366
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              37,284
<INCOME-PRETAX>                                188,207
<INCOME-TAX>                                    61,806
<INCOME-CONTINUING>                            126,401
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   126,401
<EPS-PRIMARY>                                     4.05
<EPS-DILUTED>                                     4.05