<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED STATEMENTS OF INCOME AND CONSOLIDATED BALANCE SHEETS ON PAGES
F-2 THROUGH F-4 OF THE COMPANY'S 10-K FOR THE YEAR ENDED MAY 31, 2000 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.

<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          MAY-31-2000
<PERIOD-START>                             JUN-01-1999
<PERIOD-END>                               MAY-31-2000
<CASH>                                          88,630
<SECURITIES>                                         0
<RECEIVABLES>                                2,145,371
<ALLOWANCES>                                    56,517
<INVENTORY>                                    247,372
<CURRENT-ASSETS>                             2,741,797
<PP&E>                                      12,958,570
<DEPRECIATION>                               6,846,647
<TOTAL-ASSETS>                               9,740,539
<CURRENT-LIABILITIES>                        2,421,868
<BONDS>                                      1,054,430
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                   4,366,267
<TOTAL-LIABILITY-AND-EQUITY>                 9,740,539
<SALES>                                              0
<TOTAL-REVENUES>                            15,068,338
<CGS>                                                0
<TOTAL-COSTS>                               14,168,728
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              75,580
<INCOME-PRETAX>                                843,547
<INCOME-TAX>                                   333,201
<INCOME-CONTINUING>                            510,346
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   510,346
<EPS-BASIC>                                          0
<EPS-DILUTED>                                        0