<ARTICLE> UT
<LEGEND>
THIS SCHEDULE CONTAINS FINANCIAL INFORMATION EXTRACTED FROM THE FORM 10-Q AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               MAR-31-2000
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    2,551,165
<OTHER-PROPERTY-AND-INVEST>                    485,419
<TOTAL-CURRENT-ASSETS>                         941,621
<TOTAL-DEFERRED-CHARGES>                     1,070,016
<OTHER-ASSETS>                                 482,927
<TOTAL-ASSETS>                               5,531,148
<COMMON>                                        56,577
<CAPITAL-SURPLUS-PAID-IN>                    1,018,618
<RETAINED-EARNINGS>                            394,907
<TOTAL-COMMON-STOCKHOLDERS-EQ>               1,470,102
<PREFERRED-MANDATORY>                           49,339
<PREFERRED>                                     43,000
<LONG-TERM-DEBT-NET>                         1,900,229
<SHORT-TERM-NOTES>                             263,175
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                       0
<LONG-TERM-DEBT-CURRENT-PORT>                  164,889
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                          0
<LEASES-CURRENT>                                     0
<OTHER-ITEMS-CAPITAL-AND-LIAB>               1,640,414
<TOT-CAPITALIZATION-AND-LIAB>                5,531,148
<GROSS-OPERATING-REVENUE>                      665,262
<INCOME-TAX-EXPENSE>                            25,445
<OTHER-OPERATING-EXPENSES>                     560,416
<TOTAL-OPERATING-EXPENSES>                     585,861
<OPERATING-INCOME-LOSS>                         79,401
<OTHER-INCOME-NET>                               3,495
<INCOME-BEFORE-INTEREST-EXPEN>                  82,896
<TOTAL-INTEREST-EXPENSE>                        45,797
<NET-INCOME>                                    37,099
<PREFERRED-STOCK-DIVIDENDS>                      1,490
<EARNINGS-AVAILABLE-FOR-COMM>                   35,609
<COMMON-STOCK-DIVIDENDS>                        28,981
<TOTAL-INTEREST-ON-BONDS>                       33,538
<CASH-FLOW-OPERATIONS>                          16,520
<EPS-BASIC>                                        .62
<EPS-DILUTED>                                      .62