CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenues
Electric	$ 206,613	$ 203,585	$ 602,024	$ 592,262
Gas	37,067	36,963	230,971	225,882
Other	361	270	1,112	906
Total Revenues	244,041	240,818	834,107	819,050
Operating Expenses
Cost of sales	98,045	105,922	370,523	390,685
Operating, general and administrative	66,332	58,437	203,254	173,871
Property and other taxes	22,605	20,535	68,551	68,487
Depreciation	25,181	22,825	75,562	68,697
Total Operating Expenses	212,163	207,719	717,890	701,740
Operating Income	31,878	33,099	116,217	117,310
Interest Expense, net	(16,694)	(16,306)	(50,737)	(49,413)
Other Income	346	2,315	2,257	4,921
Income Before Income Taxes	15,530	19,108	67,737	72,818
Income Tax Expense	(635)	(4,729)	(9,297)	(18,030)
Net Income	$ 14,895	$ 14,379	$ 58,440	$ 54,788
Weighted Average Number of Shares Outstanding, Basic	36,262,246	36,195,583	36,254,159	36,181,238
Basic Earnings per Average Common Share (in dollars per share)	$ 0.41	$ 0.40	$ 1.61	$ 1.51
Diluted Earnings per Average Common Share (in dollars per share)	$ 0.41	$ 0.40	$ 1.60	$ 1.51
Dividends Declared per Average Common Share (in dollars per share)	$ 0.36	$ 0.34	$ 1.08	$ 1.02