<ARTICLE>                                  5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED FINANCIAL STATEMENTS FOR THE PERIOD ENDED MARCH 31, 2000,
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.

</LEGEND>

<MULTIPLIER>                                1,000,000

                                                       
<PERIOD-TYPE>                                             3-MOS
<FISCAL-YEAR-END>                                         DEC-31-2000
<PERIOD-END>                                              MAR-31-2000
<CASH>                                                                                                    128
<SECURITIES>                                                                                                0
<RECEIVABLES>                                                                                             567
<ALLOWANCES>                                                                                               24
<INVENTORY>                                                                                               486
<CURRENT-ASSETS>                                                                                        1,547
<PP&E>                                                                                                 17,809
<DEPRECIATION>                                                                                          7,856
<TOTAL-ASSETS>                                                                                         14,343
<CURRENT-LIABILITIES>                                                                                   1,846
<BONDS>                                                                                                 4,539
<PREFERRED-MANDATORY>                                                                                       0
<PREFERRED>                                                                                                 0
<COMMON>                                                                                                   74
<OTHER-SE>                                                                                              3,648
<TOTAL-LIABILITY-AND-EQUITY>                                                                           14,343
<SALES>                                                                                                 2,508
<TOTAL-REVENUES>                                                                                        2,582
<CGS>                                                                                                   1,721
<TOTAL-COSTS>                                                                                           1,721
<OTHER-EXPENSES>                                                                                            6
<LOSS-PROVISION>                                                                                            0
<INTEREST-EXPENSE>                                                                                        104
<INCOME-PRETAX>                                                                                           534
<INCOME-TAX>                                                                                              296
<INCOME-CONTINUING>                                                                                       271
<DISCONTINUED>                                                                                              0
<EXTRAORDINARY>                                                                                             0
<CHANGES>                                                                                                   0
<NET-INCOME>                                                                                              271
<EPS-BASIC>                                                                                              0.74
<EPS-DILUTED>                                                                                            0.74