<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                  6-MOS
<FISCAL-YEAR-END>                                                 NOV-30-1997
<PERIOD-END>                                                      MAY-31-1997
<CASH>                                                                93,626
<SECURITIES>                                                          12,380
<RECEIVABLES>                                                         49,280
<ALLOWANCES>                                                               0
<INVENTORY>                                                           54,902
<CURRENT-ASSETS>                                                     301,989
<PP&E>                                                             4,878,119
<DEPRECIATION>                                                       773,984
<TOTAL-ASSETS>                                                     5,070,282
<CURRENT-LIABILITIES>                                                813,226
<BONDS>                                                              937,105
<COMMON>                                                               2,971
<PREFERRED-MANDATORY>                                                      0
<PREFERRED>                                                                0
<OTHER-SE>                                                         3,227,359
<TOTAL-LIABILITY-AND-EQUITY>                                       5,070,282
<SALES>                                                                    0
<TOTAL-REVENUES>                                                   1,117,696
<CGS>                                                                      0
<TOTAL-COSTS>                                                        634,622
<OTHER-EXPENSES>                                                           0
<LOSS-PROVISION>                                                           0
<INTEREST-EXPENSE>                                                    38,951
<INCOME-PRETAX>                                                      206,454
<INCOME-TAX>                                                           6,353
<INCOME-CONTINUING>                                                  212,807
<DISCONTINUED>                                                             0
<EXTRAORDINARY>                                                            0
<CHANGES>                                                                  0
<NET-INCOME>                                                         212,807
<EPS-PRIMARY>                                                           0.71
<EPS-DILUTED>                                                           0.71