<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED BALANCE SHEETS AND CONDENSED CONSOLIDATED STATEMENTS OF
INCOME ON PAGES 3-5 OF THE COMPANY'S FORM 10-Q FOR THE QUARTERLY PERIOD ENDING
AUGUST 31, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.

<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          MAY-31-2001
<PERIOD-START>                             JUN-01-2000
<PERIOD-END>                               AUG-31-2000
<CASH>                                         176,589
<SECURITIES>                                         0
<RECEIVABLES>                                2,679,138
<ALLOWANCES>                                    91,020
<INVENTORY>                                    260,459
<CURRENT-ASSETS>                             3,409,121
<PP&E>                                      15,019,373
<DEPRECIATION>                               7,902,302
<TOTAL-ASSETS>                              11,757,759
<CURRENT-LIABILITIES>                        2,836,892
<BONDS>                                      1,894,854
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        29,857
<OTHER-SE>                                   4,931,705
<TOTAL-LIABILITY-AND-EQUITY>                11,757,759
<SALES>                                              0
<TOTAL-REVENUES>                             4,778,736
<CGS>                                                0
<TOTAL-COSTS>                                4,467,769
<OTHER-EXPENSES>                                 3,929
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              32,793
<INCOME-PRETAX>                                274,245
<INCOME-TAX>                                   105,585
<INCOME-CONTINUING>                            168,660
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   168,660
<EPS-BASIC>                                       .590
<EPS-DILUTED>                                     .580