WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

  

<ARTICLE>                                                 UT
<LEGEND>
     THIS SCHEDULE CONTAINS SUMMARY INFORMATION  EXTRACTED FROM THE CONSOLIDATED
BALANCE SHEET AS OF JUNE 30, 1999 AND THE CONSOLIDATED  STATEMENTS OF INCOME AND
RETAINED  EARNINGS  AND OF CASH FLOWS FOR THE SIX MONTHS ENDED JUNE 30, 1999 AND
IS QUALIFIED IN ITS ENTIRETY TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                                   1,000,000

                                                       
<PERIOD-TYPE>                                             6-MOS
<FISCAL-YEAR-END>                                         DEC-31-1998
<PERIOD-END>                                              JUN-30-1999
<BOOK-VALUE>                                              PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                          3,824
<OTHER-PROPERTY-AND-INVEST>                                          645
<TOTAL-CURRENT-ASSETS>                                               486
<TOTAL-DEFERRED-CHARGES>                                             524
<OTHER-ASSETS>                                                         0
<TOTAL-ASSETS>                                                     5,479
<COMMON>                                                           1,052
<CAPITAL-SURPLUS-PAID-IN>                                             (8)
<RETAINED-EARNINGS>                                                  659
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                     1,808
<PREFERRED-MANDATORY>                                                 61
<PREFERRED>                                                          106
<LONG-TERM-DEBT-NET>                                               1,785
<SHORT-TERM-NOTES>                                                   105
<LONG-TERM-NOTES-PAYABLE>                                              0
<COMMERCIAL-PAPER-OBLIGATIONS>                                         0
<LONG-TERM-DEBT-CURRENT-PORT>                                        205
<PREFERRED-STOCK-CURRENT>                                              0
<CAPITAL-LEASE-OBLIGATIONS>                                            0
<LEASES-CURRENT>                                                       0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                       287
<TOT-CAPITALIZATION-AND-LIAB>                                      5,479
<GROSS-OPERATING-REVENUE>                                            772
<INCOME-TAX-EXPENSE>                                                  48
<OTHER-OPERATING-EXPENSES>                                           580
<TOTAL-OPERATING-EXPENSES>                                           628
<OPERATING-INCOME-LOSS>                                              144
<OTHER-INCOME-NET>                                                    (8)
<INCOME-BEFORE-INTEREST-EXPEN>                                       136
<TOTAL-INTEREST-EXPENSE>                                              69
<NET-INCOME>                                                          65
<PREFERRED-STOCK-DIVIDENDS>                                            4
<EARNINGS-AVAILABLE-FOR-COMM>                                         61
<COMMON-STOCK-DIVIDENDS>                                              80
<TOTAL-INTEREST-ON-BONDS>                                              0
<CASH-FLOW-OPERATIONS>                                                66
<EPS-BASIC>                                                       0.59
<EPS-DILUTED>                                                       0.59