<TABLE> <S> <C>

<ARTICLE>                                                          UT
<LEGEND>
This  schedule  contains  summary  financial   information  extracted  from  the
Statement of Income, Balance Sheet and Statement of Cash Flows, and is qualified
inits entirety by reference to such financial statements.
</LEGEND>
<MULTIPLIER>                                                       1,000

<S>                                                                <C>
<PERIOD-TYPE>                                                      3-MOS
<FISCAL-YEAR-END>                                                  DEC-31-2000
<PERIOD-START>                                                     JAN-1-2000
<PERIOD-END>                                                       MAR-31-2000

<BOOK-VALUE>                                                       PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                           4,284,323
<OTHER-PROPERTY-AND-INVEST>                                           444,542
<TOTAL-CURRENT-ASSETS>                                              1,411,319
<TOTAL-DEFERRED-CHARGES>                                            1,026,001
<OTHER-ASSETS>                                                              0
<TOTAL-ASSETS>                                                      7,166,185
<COMMON>                                                                1,338
<CAPITAL-SURPLUS-PAID-IN>                                           2,249,390
<RETAINED-EARNINGS>                                                   565,421
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                      2,816,149
<PREFERRED-MANDATORY>                                                 363,000
<PREFERRED>                                                            84,339
<LONG-TERM-DEBT-NET>                                                2,109,120
<SHORT-TERM-NOTES>                                                          0
<LONG-TERM-NOTES-PAYABLE>                                                   0
<COMMERCIAL-PAPER-OBLIGATIONS>                                              0
<LONG-TERM-DEBT-CURRENT-PORT>                                               0
<PREFERRED-STOCK-CURRENT>                                                   0
<CAPITAL-LEASE-OBLIGATIONS>                                                 0
<LEASES-CURRENT>                                                            0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                                      1,793,577
<TOT-CAPITALIZATION-AND-LIAB>                                       7,166,185
<GROSS-OPERATING-REVENUE>                                           1,316,613
<INCOME-TAX-EXPENSE>                                                   92,072
<OTHER-OPERATING-EXPENSES>                                          1,020,107
<TOTAL-OPERATING-EXPENSES>                                          1,112,179
<OPERATING-INCOME-LOSS>                                               204,434
<OTHER-INCOME-NET>                                                     11,935
<INCOME-BEFORE-INTEREST-EXPEN>                                        216,369
<TOTAL-INTEREST-EXPENSE>                                               44,125
<NET-INCOME>                                                          172,244
<PREFERRED-STOCK-DIVIDENDS>                                             8,691
<EARNINGS-AVAILABLE-FOR-COMM>                                         163,553
<COMMON-STOCK-DIVIDENDS>                                               59,575
<TOTAL-INTEREST-ON-BONDS>                                              30,064
<CASH-FLOW-OPERATIONS>                                                190,264
<EPS-BASIC>                                                              1.22
<EPS-DILUTED>                                                            1.22


</TABLE>