<ARTICLE>  UT
<MULTIPLIER> 1,000
                                
<PERIOD-TYPE>                      9-MOS
<FISCAL-YEAR-END>                    Dec-31-1993
<PERIOD-END>                         Sep-30-1994
<BOOK-VALUE>                           PER-BOOK
<TOTAL-NET-UTILITY-PLANT>             2,327,555
<OTHER-PROPERTY-AND-INVEST>              70,448
<TOTAL-CURRENT-ASSETS>                  151,210
<TOTAL-DEFERRED-CHARGES>                206,945
<OTHER-ASSETS>                                0
<TOTAL-ASSETS>                        2,756,158
<COMMON>                                449,697
<CAPITAL-SURPLUS-PAID-IN>                (1,736)
<RETAINED-EARNINGS>                     431,143
<TOTAL-COMMON-STOCKHOLDERS-EQ>          879,104
<PREFERRED-MANDATORY>                     1,596
<PREFERRED>                              89,000
<LONG-TERM-DEBT-NET>                    754,686
<SHORT-TERM-NOTES>                        1,000
<LONG-TERM-NOTES-PAYABLE>                     0
<COMMERCIAL-PAPER-OBLIGATIONS>                0
<LONG-TERM-DEBT-CURRENT-PORT>            82,750
<PREFERRED-STOCK-CURRENT>                     0
<CAPITAL-LEASE-OBLIGATIONS>                   0
<LEASES-CURRENT>                              0
<OTHER-ITEMS-CAPITAL-AND-LIAB>          948,022
<TOT-CAPITALIZATION-AND-LIAB>         2,756,158
<GROSS-OPERATING-REVENUE>               676,174
<INCOME-TAX-EXPENSE>                     56,063
<OTHER-OPERATING-EXPENSES>              501,929
<TOTAL-OPERATING-EXPENSES>              557,992
<OPERATING-INCOME-LOSS>                 118,182
<OTHER-INCOME-NET>                        1,211
<INCOME-BEFORE-INTEREST-EXPEN>          119,393
<TOTAL-INTEREST-EXPENSE>                 34,627
<NET-INCOME>                             84,766
<PREFERRED-STOCK-DIVIDENDS>               2,522
<EARNINGS-AVAILABLE-FOR-COMM>            82,244
<COMMON-STOCK-DIVIDENDS>                 69,332
<TOTAL-INTEREST-ON-BONDS>                31,910
<CASH-FLOW-OPERATIONS>                  223,108
<EPS-PRIMARY>                              1.33
<EPS-DILUTED>                              1.33