Consolidated Condensed Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating Activities
Net Income	$ 56,692	$ 57,406
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	115,295	94,534
Asset impairment	0	21,545
Accretion expense	1,997	1,813
Deferred income taxes	29,028	23,182
Bad debt expense (recovery)	218	(258)
Exploratory expense	541	1,076
Change in derivative fair value	37,977	47,221
(Gain) loss on sale of assets	(656)	47
Other, net	11,078	4,261
Net change in:
Accounts receivable	(35,312)	20,063
Inventories	26,338	1,473
Accounts payable	9,670	7,327
Amounts due customers, including gas supply pass-through	10,254	(31,926)
Income tax receivable	4,781	5,852
Pension and other postretirement benefit contributions	(10,334)	(3,176)
Other current assets and liabilities	3,886	(19,460)
Net cash provided by operating activities	261,453	230,980
Investing Activities
Additions to property, plant and equipment	(297,301)	(276,791)
Acquisitions, net of cash acquired	(13,146)	(68,176)
Proceeds from sale of assets	1,370	13,766
Other, net	(362)	(375)
Net cash used in investing activities	(309,439)	(331,576)
Financing Activities
Payment of dividends on common stock	(10,473)	(10,095)
Issuance of common stock	0	604
Payment of long-term debt	(10)	(25)
Net change in short-term debt	69,000	150,000
Tax benefit on stock compensation	68	227
Other	0	(38)
Net cash provided by financing activities	58,585	140,673
Net change in cash and cash equivalents	10,599	40,077
Cash and cash equivalents at beginning of period	9,704	9,541
Cash and Cash Equivalents at End of Period	20,303	49,618
Alabama Gas Corporation
Operating Activities
Net Income	47,222	46,918
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	10,729	10,446
Deferred income taxes	3,020	3,198
Bad debt expense (recovery)	217	(258)
Other, net	3,685	(2,564)
Net change in:
Accounts receivable	(23,409)	14,706
Inventories	23,317	5,985
Accounts payable	(11,306)	(20,364)
Amounts due customers, including gas supply pass-through	10,254	(31,926)
Income tax receivable	2,762	8,374
Pension and other postretirement benefit contributions	(5,365)	(681)
Other current assets and liabilities	24,183	11,425
Net cash provided by operating activities	85,309	45,259
Investing Activities
Additions to property, plant and equipment	(19,046)	(14,245)
Other, net	886	(767)
Net cash used in investing activities	(18,160)	(15,012)
Financing Activities
Payment of dividends on common stock	(8,438)	(8,027)
Payment of long-term debt	(10)	(25)
Net change in short-term debt	(47,000)	10,000
Other	0	(38)
Net cash provided by financing activities	(55,448)	1,910
Net change in cash and cash equivalents	11,701	32,157
Cash and cash equivalents at beginning of period	5,559	7,817
Cash and Cash Equivalents at End of Period	$ 17,260	$ 39,974