<ARTICLE> UT
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               SEP-30-1999
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    1,585,161
<OTHER-PROPERTY-AND-INVEST>                     31,795
<TOTAL-CURRENT-ASSETS>                         573,039
<TOTAL-DEFERRED-CHARGES>                     1,006,486
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                               3,196,481
<COMMON>                                             0
<CAPITAL-SURPLUS-PAID-IN>                      741,520
<RETAINED-EARNINGS>                            (11,366)
<TOTAL-COMMON-STOCKHOLDERS-EQ>                 730,154
<PREFERRED-MANDATORY>                           49,220
<PREFERRED>                                     43,000
<LONG-TERM-DEBT-NET>                         1,260,076
<SHORT-TERM-NOTES>                                   0
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                       0
<LONG-TERM-DEBT-CURRENT-PORT>                  234,628
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                          0
<LEASES-CURRENT>                                     0
<OTHER-ITEMS-CAPITAL-AND-LIAB>                 879,403
<TOT-CAPITALIZATION-AND-LIAB>                3,196,481
<GROSS-OPERATING-REVENUE>                    1,205,210
<INCOME-TAX-EXPENSE>                            80,648
<OTHER-OPERATING-EXPENSES>                     929,895
<TOTAL-OPERATING-EXPENSES>                   1,010,543
<OPERATING-INCOME-LOSS>                        194,667
<OTHER-INCOME-NET>                              19,236
<INCOME-BEFORE-INTEREST-EXPEN>                 213,903
<TOTAL-INTEREST-EXPENSE>                        67,967
<NET-INCOME>                                   145,936
<PREFERRED-STOCK-DIVIDENDS>                      4,470
<EARNINGS-AVAILABLE-FOR-COMM>                        0
<COMMON-STOCK-DIVIDENDS>                             0
<TOTAL-INTEREST-ON-BONDS>                            0
<CASH-FLOW-OPERATIONS>                         152,999
<EPS-BASIC>                                          0
<EPS-DILUTED>                                        0