<ARTICLE>  UT
<MULTIPLIER> 1,000
                                
<PERIOD-TYPE>                      6-MOS
<FISCAL-YEAR-END>                      Dec-31-1995
<PERIOD-END>                           Jun-30-1995
<BOOK-VALUE>                             PER-BOOK
<TOTAL-NET-UTILITY-PLANT>               2,335,417
<OTHER-PROPERTY-AND-INVEST>               136,893
<TOTAL-CURRENT-ASSETS>                    139,345
<TOTAL-DEFERRED-CHARGES>                  190,194
<OTHER-ASSETS>                                  0
<TOTAL-ASSETS>                          2,801,849
<COMMON>                                  449,697
<CAPITAL-SURPLUS-PAID-IN>                  (1,725)
<RETAINED-EARNINGS>                       419,220
<TOTAL-COMMON-STOCKHOLDERS-EQ>            867,192
<PREFERRED-MANDATORY>                       1,436
<PREFERRED>                                89,000
<LONG-TERM-DEBT-NET>                      837,564
<SHORT-TERM-NOTES>                              0
<LONG-TERM-NOTES-PAYABLE>                       0
<COMMERCIAL-PAPER-OBLIGATIONS>             14,000
<LONG-TERM-DEBT-CURRENT-PORT>              43,288
<PREFERRED-STOCK-CURRENT>                       0
<CAPITAL-LEASE-OBLIGATIONS>                     0
<LEASES-CURRENT>                                0
<OTHER-ITEMS-CAPITAL-AND-LIAB>            949,369
<TOT-CAPITALIZATION-AND-LIAB>           2,801,849
<GROSS-OPERATING-REVENUE>                 404,211
<INCOME-TAX-EXPENSE>                       23,540
<OTHER-OPERATING-EXPENSES>                320,187
<TOTAL-OPERATING-EXPENSES>                343,727
<OPERATING-INCOME-LOSS>                    60,484
<OTHER-INCOME-NET>                          7,625
<INCOME-BEFORE-INTEREST-EXPEN>             68,109
<TOTAL-INTEREST-EXPENSE>                   26,526
<NET-INCOME>                               41,583
<PREFERRED-STOCK-DIVIDENDS>                 2,048
<EARNINGS-AVAILABLE-FOR-COMM>              39,535
<COMMON-STOCK-DIVIDENDS>                   47,046
<TOTAL-INTEREST-ON-BONDS>                  25,223
<CASH-FLOW-OPERATIONS>                     91,334
<EPS-PRIMARY>                                0.64
<EPS-DILUTED>                                0.64