<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED BALANCE SHEET AT APRIL 30, 1998 AND THE CONDENSED
CONSOLIDATED STATEMENT OF EARNINGS FOR THE SIX MONTHS ENDED APRIL 30, 1998 AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-END>                               APR-30-1998
<CASH>                                         319,491
<SECURITIES>                                         0
<RECEIVABLES>                                  956,139
<ALLOWANCES>                                         0
<INVENTORY>                                    181,871
<CURRENT-ASSETS>                             2,182,787
<PP&E>                                       3,074,112
<DEPRECIATION>                               1,088,916
<TOTAL-ASSETS>                               4,758,350
<CURRENT-LIABILITIES>                        2,175,003
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        49,347
<OTHER-SE>                                   1,545,919
<TOTAL-LIABILITY-AND-EQUITY>                 4,758,350
<SALES>                                              0
<TOTAL-REVENUES>                             6,681,098
<CGS>                                                0
<TOTAL-COSTS>                                6,494,170
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              18,749
<INCOME-PRETAX>                                168,108
<INCOME-TAX>                                    59,006
<INCOME-CONTINUING>                            109,102
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   109,102
<EPS-PRIMARY>                                     1.33
<EPS-DILUTED>                                     1.33