CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Revenues
Total operating revenues	$ 1,738,650	$ 1,540,819	$ 1,373,113
Operating Expenses
Cost of gas	215,455	142,228	233,523
Operations and maintenance	562,350	458,084	398,084
Depreciation, depletion and amortization	497,381	385,453	253,757
Asset impairment	29,794	21,545	0
Taxes, other than income taxes	105,268	86,801	88,351
Accretion expense	6,995	6,339	5,699
Total operating expenses	1,387,449	1,078,905	979,414
Income taxes
Operating Income	351,201	461,914	393,699
Other Income (Expense)
Interest expense	69,200	65,542	44,822
Other income	16,803	4,285	2,206
Other expense	(375)	(903)	(456)
Total other income (expense)	(52,772)	(62,160)	(43,072)
Interest Expense
Income From Continuing Operations Before Income Taxes	298,429	399,754	350,627
Income tax expense from continuing operations	105,282	144,534	126,322
Income From Continuing Operations	193,147	255,220	224,305
Income (loss) from discontinued operations	7,813	(1,658)	35,319
Gain on disposal of discontinued operations, net	3,594	0	0
Total Income (Loss) From Discontinued Operations	11,407	(1,658)	35,319
Net Income	204,554	253,562	259,624
Diluted Earnings Per Average Common Share
Continuing operations (in dollars per share)	$ 2.67	$ 3.53	$ 3.10
Discontinued operations (in dollars per share)	$ 0.15	$ (0.02)	$ 0.49
Net Income (in dollars per share)	$ 2.82	$ 3.51	$ 3.59
Basic Earnings Per Average Common Share
Continuing operations (in dollars per share)	$ 2.67	$ 3.54	$ 3.11
Discontinued operations (in dollars per share)	$ 0.16	$ (0.02)	$ 0.49
Net Income (in dollars per share)	$ 2.83	$ 3.52	$ 3.60
Dividends Per Common Share (dollars per share)	$ 0.58	$ 0.56	$ 0.54
Diluted Average Common Shares Outstanding	72,470,622	72,316,214	72,332,369
Basic Average Common Shares Outstanding	72,317,865	72,119,021	72,055,661
Alabama Gas Corporation
Operating Revenues
Natural gas distribution	533,338	451,589	534,953
Operating Expenses
Cost of gas	215,455	142,228	233,523
Operations and maintenance	143,138	141,334	139,030
Depreciation, depletion and amortization	43,907	42,270	39,916
Taxes, other than income taxes	37,070	32,541	36,268
Total operating expenses	474,257	388,617	475,407
Income taxes
Current	19,687	18,966	(1,388)
Deferred	15,000	11,278	28,058
Operating Income	59,081	62,972	59,546
Other Income (Expense)
Interest expense	15,649	16,284	14,740
Allowance for funds used during construction	698	623	807
Other income	14,393	2,382	1,309
Other expense	(1,124)	(291)	(320)
Total other income (expense)	13,967	2,714	1,796
Interest Expense
Interest on long-term debt	13,509	13,744	12,100
Other interest expense	2,140	2,540	2,640
Income tax expense from continuing operations	34,687	30,244	26,670
Net Income	$ 57,399	$ 49,402	$ 46,602