<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
ACCOMPANYING FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               SEP-30-2000
<CASH>                                             828
<SECURITIES>                                         0
<RECEIVABLES>                                   15,592
<ALLOWANCES>                                     1,412
<INVENTORY>                                      1,487
<CURRENT-ASSETS>                                20,094
<PP&E>                                         154,496
<DEPRECIATION>                                  88,191
<TOTAL-ASSETS>                                 157,528
<CURRENT-LIABILITIES>                           39,008
<BONDS>                                         32,825
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           275
<OTHER-SE>                                      34,207
<TOTAL-LIABILITY-AND-EQUITY>                   157,528
<SALES>                                              0
<TOTAL-REVENUES>                                47,893
<CGS>                                                0
<TOTAL-COSTS>                                   38,286
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               2,605
<INCOME-PRETAX>                                 15,274
<INCOME-TAX>                                     6,157
<INCOME-CONTINUING>                              9,117
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                    817
<CHANGES>                                            0
<NET-INCOME>                                     9,926
<EPS-BASIC>                                       3.65
<EPS-DILUTED>                                     3.62