<TABLE> <S> <C>
<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
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 1,346
<SECURITIES> 0
<RECEIVABLES> 13,639
<ALLOWANCES> 1,279
<INVENTORY> 1,385
<CURRENT-ASSETS> 20,136
<PP&E> 150,896
<DEPRECIATION> 86,122
<TOTAL-ASSETS> 157,013
<CURRENT-LIABILITIES> 38,117
<BONDS> 33,286
0
0
<COMMON> 275
<OTHER-SE> 33,901
<TOTAL-LIABILITY-AND-EQUITY> 157,013
<SALES> 0
<TOTAL-REVENUES> 31,336
<CGS> 0
<TOTAL-COSTS> 25,448
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 1,690
<INCOME-PRETAX> 10,608
<INCOME-TAX> 4,135
<INCOME-CONTINUING> 6,473
<DISCONTINUED> 0
<EXTRAORDINARY> 9
<CHANGES> 0
<NET-INCOME> 6,464
<EPS-BASIC> 2.37
<EPS-DILUTED> 2.35
</TABLE>