<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          NOV-30-1999
<PERIOD-END>                               FEB-28-1999
<CASH>                                          21,500
<SECURITIES>                                     6,900
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<ALLOWANCES>                                         0
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<PP&E>                                       1,228,800
<DEPRECIATION>                                 731,300
<TOTAL-ASSETS>                               1,728,500
<CURRENT-LIABILITIES>                          402,400
<BONDS>                                              0
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<OTHER-SE>                                     350,000
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<SALES>                                        439,600
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<CGS>                                          341,200
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<OTHER-EXPENSES>                                   200
<LOSS-PROVISION>                                     0
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<NET-INCOME>                                    17,200
<EPS-PRIMARY>                                      .41
<EPS-DILUTED>                                      .41