Consolidated Condensed Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating Activities
Net Income	$ 190,739	$ 245,192
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	300,863	199,559
Asset impairment	21,545	0
Accretion expense	5,581	5,066
Deferred income taxes	80,724	120,656
Bad debt expense	370	3,197
Exploratory expense	11,420	10,773
Change in derivative fair value	(23,933)	(59,581)
Gain on sale of assets	(420)	(5,991)
Other, net	17,047	5,913
Net change in:
Accounts receivable	46,798	48,585
Inventories	62	(15,493)
Accounts payable	(12,791)	(26,877)
Amounts due customers including gas supply pass-through	(52,466)	7,342
Income tax receivable	1,817	39,347
Pension and other postretirement benefit contributions	(5,056)	(5,025)
Other current assets and liabilities	20,819	21,286
Net cash provided by operating activities	603,119	593,949
Investing Activities
Additions to property, plant and equipment	(898,202)	(634,427)
Acquisitions, net of cash acquired	(104,200)	(106,578)
Proceeds from sale of assets	2,420	7,401
Other, net	(746)	(946)
Net cash used in investing activities	(1,000,728)	(734,550)
Financing Activities
Payment of dividends on common stock	(30,292)	(29,188)
Issuance of common stock	1,164	6,221
Issuance of long-term debt	0	399,952
Payment of long-term debt	(1,143)	(5,407)
Net change in short-term debt	465,000	(230,000)
Tax benefit on stock compensation	514	922
Other	(38)	(3,162)
Net cash provided by (used in) financing activities	435,205	139,338
Net change in cash and cash equivalents	37,596	(1,263)
Cash and cash equivalents at beginning of period	9,541	22,659
Cash and Cash Equivalents at End of Period	47,137	21,396
Alabama Gas Corporation
Operating Activities
Net Income	37,205	35,344
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	31,551	29,606
Deferred income taxes	9,431	16,626
Bad debt expense	364	3,184
Other, net	4,681	227
Net change in:
Accounts receivable	29,539	41,085
Inventories	5,975	(6,173)
Accounts payable	(17,222)	(22,155)
Amounts due customers including gas supply pass-through	(52,466)	7,342
Income tax receivable	6,002	6,807
Pension and other postretirement benefit contributions	(2,044)	(2,108)
Other current assets and liabilities	(9,795)	(8,474)
Net cash provided by operating activities	43,221	101,311
Investing Activities
Additions to property, plant and equipment	(49,746)	(57,424)
Other, net	2,490	177
Net cash used in investing activities	(47,256)	(57,247)
Financing Activities
Payment of dividends on common stock	(28,182)	(29,183)
Payment of long-term debt	(143)	(5,407)
Net increases in advances from affiliates	24,867	370
Net change in short-term debt	10,000	(20,000)
Other	(38)	0
Net cash provided by (used in) financing activities	6,504	(54,220)
Net change in cash and cash equivalents	2,469	(10,156)
Cash and cash equivalents at beginning of period	7,817	16,910
Cash and Cash Equivalents at End of Period	$ 10,286	$ 6,754