<ARTICLE>   5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE CONSOLIDATED STATEMENT OF INCOME
FOR THE THREE  MONTHS ENDED MARCH 31, 1997 AND THE
CONSOLIDATED BALANCE SHEET AT MARCH 31, 1997 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                     1,000
       
                                                
<PERIOD-TYPE>                                    3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                               MAR-31-1997
<CASH>                                           57666
<SECURITIES>                                         0
<RECEIVABLES>                                   577982
<ALLOWANCES>                                     17917
<INVENTORY>                                     506611
<CURRENT-ASSETS>                               1165514
<PP&E>                                         6966599
<DEPRECIATION>                                 3222810
<TOTAL-ASSETS>                                 5131758
<CURRENT-LIABILITIES>                           846166
<BONDS>                                        1250052
<COMMON>                                         69254
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                     1995643
<TOTAL-LIABILITY-AND-EQUITY>                   5131758
<SALES>                                        1057125
<TOTAL-REVENUES>                               1057125
<CGS>                                           812133
<TOTAL-COSTS>                                  1012298
<OTHER-EXPENSES>                                (2,935)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               31062
<INCOME-PRETAX>                                  18853
<INCOME-TAX>                                      6712
<INCOME-CONTINUING>                               9618
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                      9618
<EPS-PRIMARY>                                     0.14
<EPS-DILUTED>                                     0.14
<FN>
<F1> REFLECTS ADJUSTMENT FOR MINORITY INTEREST (NET OF TAX) OF $2523
</FN>