<TABLE> <S> <C>

<ARTICLE>                                                 UT
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED STATEMENT OF INCOME, THE CONSOLIDATED BALANCE SHEET AND THE
CONSOLIDATED STATEMENT OF CASH FLOWS AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                                         1,000,000

<S>                                                       <C>
<PERIOD-TYPE>                                             9-MOS
<FISCAL-YEAR-END>                                         DEC-31-1999
<PERIOD-END>                                              SEP-30-1999
<BOOK-VALUE>                                              PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                                1,612
<OTHER-PROPERTY-AND-INVEST>                                                119
<TOTAL-CURRENT-ASSETS>                                                     343
<TOTAL-DEFERRED-CHARGES>                                                     0
<OTHER-ASSETS>                                                             203
<TOTAL-ASSETS>                                                           2,277
<COMMON>                                                                   118
<CAPITAL-SURPLUS-PAID-IN>                                                    0
<RETAINED-EARNINGS>                                                        656
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                             774
<PREFERRED-MANDATORY>                                                        6
<PREFERRED>                                                                  0
<LONG-TERM-DEBT-NET>                                                       422
<SHORT-TERM-NOTES>                                                           0
<LONG-TERM-NOTES-PAYABLE>                                                   15
<COMMERCIAL-PAPER-OBLIGATIONS>                                             127
<LONG-TERM-DEBT-CURRENT-PORT>                                               74
<PREFERRED-STOCK-CURRENT>                                                    0
<CAPITAL-LEASE-OBLIGATIONS>                                                  0
<LEASES-CURRENT>                                                             0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                             859
<TOT-CAPITALIZATION-AND-LIAB>                                            2,277
<GROSS-OPERATING-REVENUE>                                                1,076
<INCOME-TAX-EXPENSE>                                                        46
<OTHER-OPERATING-EXPENSES>                                                 928
<TOTAL-OPERATING-EXPENSES>                                                 974
<OPERATING-INCOME-LOSS>                                                    102
<OTHER-INCOME-NET>                                                          15
<INCOME-BEFORE-INTEREST-EXPEN>                                             117
<TOTAL-INTEREST-EXPENSE>                                                    32
<NET-INCOME>                                                                85
<PREFERRED-STOCK-DIVIDENDS>                                                  0
<EARNINGS-AVAILABLE-FOR-COMM>                                               85
<COMMON-STOCK-DIVIDENDS>                                                    55
<TOTAL-INTEREST-ON-BONDS>                                                    0
<CASH-FLOW-OPERATIONS>                                                     325
<EPS-BASIC>                                                               1.80
<EPS-DILUTED>                                                             1.79


</TABLE>