<ARTICLE> UT
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               DEC-31-1999
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    1,458,517
<OTHER-PROPERTY-AND-INVEST>                     80,891
<TOTAL-CURRENT-ASSETS>                         258,849
<TOTAL-DEFERRED-CHARGES>                     2,483,155
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                               4,281,412
<COMMON>                                             0
<CAPITAL-SURPLUS-PAID-IN>                      758,743
<RETAINED-EARNINGS>                             39,931
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 798,674
<PREFERRED-MANDATORY>                            4,500
<PREFERRED>                                    225,012<F1>
<LONG-TERM-DEBT-NET>                         1,410,754
<SHORT-TERM-NOTES>                                   0
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                 136,594
<LONG-TERM-DEBT-CURRENT-PORT>                  399,074
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                     16,534
<LEASES-CURRENT>                                   685
<OTHER-ITEMS-CAPITAL-AND-LIAB>               1,289,585
<TOT-CAPITALIZATION-AND-LIAB>                4,281,412
<GROSS-OPERATING-REVENUE>                    1,158,800
<INCOME-TAX-EXPENSE>                            88,246
<OTHER-OPERATING-EXPENSES>                     810,790
<TOTAL-OPERATING-EXPENSES>                     899,036
<OPERATING-INCOME-LOSS>                        259,764
<OTHER-INCOME-NET>                              22,490
<INCOME-BEFORE-INTEREST-EXPEN>                 282,254
<TOTAL-INTEREST-EXPENSE>                       131,234<F2>
<NET-INCOME>                                   151,020
<PREFERRED-STOCK-DIVIDENDS>                      3,998
<EARNINGS-AVAILABLE-FOR-COMM>                  147,022
<COMMON-STOCK-DIVIDENDS>                       203,000
<TOTAL-INTEREST-ON-BONDS>                       79,454
<CASH-FLOW-OPERATIONS>                         315,192
<EPS-BASIC>                                          0
<EPS-DILUTED>                                        0
<FN>
<F1>Includes $14,404 of Preference Stock.
<F2>Includes $12,562 of Monthly Income Preferred Securities Dividend Requirements.
</FN>