<TABLE> <S> <C>


<ARTICLE>                                                 UT
<LEGEND>
     THIS SCHEDULE CONTAINS SUMMARY INFORMATION  EXTRACTED FROM THE CONSOLIDATED
BALANCE SHEET AS OF JUNE 30, 2000 AND THE CONSOLIDATED STATEMENTS OF INCOME
AND RETAINED  EARNINGS AND OF CASH FLOWS FOR THE NINE MONTHS ENDED JUNE 30,
2000 AND IS QUALIFIED IN ITS ENTIRETY TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                                   1,000,000

<S>                                                       <C>
<PERIOD-TYPE>                                             6-MOS
<FISCAL-YEAR-END>                                         DEC-31-1999
<PERIOD-END>                                              JUN-30-2000
<BOOK-VALUE>                                              PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                          4,862
<OTHER-PROPERTY-AND-INVEST>                                          876
<TOTAL-CURRENT-ASSETS>                                               676
<TOTAL-DEFERRED-CHARGES>                                             597
<OTHER-ASSETS>                                                         0
<TOTAL-ASSETS>                                                     7,011
<COMMON>                                                           1,051
<CAPITAL-SURPLUS-PAID-IN>                                            216
<RETAINED-EARNINGS>                                                  792
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                     2,059
<PREFERRED-MANDATORY>                                                 61
<PREFERRED>                                                          106
<LONG-TERM-DEBT-NET>                                               2,562
<SHORT-TERM-NOTES>                                                   313
<LONG-TERM-NOTES-PAYABLE>                                              0
<COMMERCIAL-PAPER-OBLIGATIONS>                                         0
<LONG-TERM-DEBT-CURRENT-PORT>                                        209
<PREFERRED-STOCK-CURRENT>                                              1
<CAPITAL-LEASE-OBLIGATIONS>                                            0
<LEASES-CURRENT>                                                       0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                     1,700
<TOT-CAPITALIZATION-AND-LIAB>                                      7,011
<GROSS-OPERATING-REVENUE>                                          1,484
<INCOME-TAX-EXPENSE>                                                  72
<OTHER-OPERATING-EXPENSES>                                         1,212
<TOTAL-OPERATING-EXPENSES>                                         1,284
<OPERATING-INCOME-LOSS>                                              200
<OTHER-INCOME-NET>                                                    18
<INCOME-BEFORE-INTEREST-EXPEN>                                       218
<TOTAL-INTEREST-EXPENSE>                                             109
<NET-INCOME>                                                         138
<PREFERRED-STOCK-DIVIDENDS>                                            6
<EARNINGS-AVAILABLE-FOR-COMM>                                        132
<COMMON-STOCK-DIVIDENDS>                                              60
<TOTAL-INTEREST-ON-BONDS>                                              0
<CASH-FLOW-OPERATIONS>                                               218
<EPS-BASIC>                                                       1.27
<EPS-DILUTED>                                                       1.27



</TABLE>