Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating Revenues
Regulated Energy	$ 103,618	$ 109,393
Unregulated Energy and other	123,998	129,963
Total Operating Revenues	227,616	239,356
Operating Expenses
Regulated Energy cost of sales	36,516	48,231
Unregulated Energy and other cost of sales	89,703	99,826
Operations	37,144	32,702
Cost, Maintenance	3,681	3,593
Depreciation and amortization	11,074	9,704
Other taxes	5,505	4,894
Total Operating Expenses	183,623	198,950
Operating Income	43,993	40,406
Other income (expense), net	(45)	68
Interest charges	5,710	3,664
Income Before Income Taxes	38,238	36,810
Income taxes	9,574	9,955
Net Income	$ 28,664	$ 26,855
Weighted Average Common Shares Outstanding:
Basic (shares)	16,384,927	16,351,338
Diluted (shares)	16,432,852	16,402,985
Earnings Per Share of Common Stock:
Basic (in dollars per share)	$ 1.75	$ 1.64
Diluted (in dollars per share)	$ 1.74	$ 1.64