<TABLE> <S> <C>
<ARTICLE> OPUR1
<LEGEND>
This schedule contains summary financial information extracted from the
Company's consolidated interim financial statements and is qualified in its
entirety by reference to such consolidated interim financial statements.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> Dec-31-2000
<PERIOD-START> Jan-01-2000
<PERIOD-END> Sep-30-2000
<BOOK-VALUE> PER-BOOK
<TOTAL-NET-UTILITY-PLANT> 1,006,972
<OTHER-PROPERTY-AND-INVEST> 247,278
<TOTAL-CURRENT-ASSETS> 211,658
<TOTAL-DEFERRED-CHARGES> 166,929
<OTHER-ASSETS> 133,849
<TOTAL-ASSETS> 1,766,686
<COMMON> 45,064
<CAPITAL-SURPLUS-PAID-IN> 111,453
<RETAINED-EARNINGS> 312,927
<TOTAL-COMMON-STOCKHOLDERS-EQ> 469,444
0
14,967
<LONG-TERM-DEBT-NET> 419,845
<SHORT-TERM-NOTES> 0
<LONG-TERM-NOTES-PAYABLE> 240,000
<COMMERCIAL-PAPER-OBLIGATIONS> 75,193
<LONG-TERM-DEBT-CURRENT-PORT> 29,722
0
<CAPITAL-LEASE-OBLIGATIONS> 0
<LEASES-CURRENT> 0
<OTHER-ITEMS-CAPITAL-AND-LIAB> 517,515
<TOT-CAPITALIZATION-AND-LIAB> 1,766,686
<GROSS-OPERATING-REVENUE> 604,535
<INCOME-TAX-EXPENSE> 29,957
<OTHER-OPERATING-EXPENSES> 487,406
<TOTAL-OPERATING-EXPENSES> 487,406
<OPERATING-INCOME-LOSS> 117,129
<OTHER-INCOME-NET> 3,886
<INCOME-BEFORE-INTEREST-EXPEN> 121,015
<TOTAL-INTEREST-EXPENSE> 33,779
<NET-INCOME> 57,279
1,400
<EARNINGS-AVAILABLE-FOR-COMM> 58,387
<COMMON-STOCK-DIVIDENDS> 28,429
<TOTAL-INTEREST-ON-BONDS> 13,522
<CASH-FLOW-OPERATIONS> 31,230
<EPS-BASIC> 2.60
<EPS-DILUTED> 2.51
</TABLE>