CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current Assets
Cash and cash equivalents	$ 5,555	$ 9,704
Accounts receivable
Allowance for doubtful accounts	(5,694)	(6,549)
Accounts receivable, net of allowance for doubtful accounts of $5,694 and $6,549 at December 31, 2013 and 2012, respectively	257,545	277,900
Inventories
Storage gas inventory	32,095	32,205
Materials and supplies	16,601	28,291
Liquified natural gas in storage	3,634	3,498
Regulatory assets	2,756	45,515
Income tax receivable	5,765	6,664
Assets held for sale	51,104	0
Deferred income taxes	41,299	8,520
Prepayments and other	10,877	12,823
Total current assets	427,231	425,120
Property, Plant and Equipment
Oil and gas properties, successful efforts method	6,864,375	6,439,127
Less accumulated depreciation, depletion and amortization	1,776,802	1,765,241
Oil and gas properties, net	5,087,573	4,673,886
Utility plant	1,491,433	1,416,590
Less accumulated depreciation	605,924	573,947
Utility plant, net	885,509	842,643
Other property, net	30,556	25,107
Total property, plant and equipment, net	6,003,638	5,541,636
Other Assets
Regulatory assets	84,890	110,566
Other postretirement assets	35,351	1,404
Long-term derivative instruments	5,439	40,577
Deferred charges and other	65,663	56,587
Total other assets	191,343	209,134
TOTAL ASSETS	6,622,212	6,175,890
Current Liabilities
Long-term debt due within one year	60,000	50,000
Notes payable to banks	539,000	643,000
Accounts payable	250,756	257,579
Accrued taxes	36,228	30,076
Customer deposits	21,692	24,705
Amounts due customers	16,990	19,718
Accrued wages and benefits	33,884	24,984
Regulatory liabilities	49,006	45,116
Royalty payable	51,519	34,426
Liabilities related to assets held for sale	18,545	0
Other	32,273	30,178
Total current liabilities	1,109,893	1,159,782
Long-term debt	1,343,464	1,103,528
Deferred Credits and Other Liabilities
Asset retirement obligation	108,533	118,023
Pension liabilities	67,675	110,282
Regulatory liabilities	94,125	80,404
Deferred income taxes	1,013,245	905,601
Long-term derivative instruments	398	11,305
Other	26,860	10,275
Total deferred credits and other liabilities	1,310,836	1,235,890
Commitments and Contingencies
Shareholders' Equity
Preferred stock, cumulative, $0.01 par value	0	0
Common shareholders’ equity
Common stock, $0.01 par value	756	751
Premium on capital stock	520,909	492,108
Capital surplus	2,802	2,802
Retained earnings	2,476,616	2,314,055
Accumulated other comprehensive income (loss), net of tax
Unrealized gain on hedges, net	13,362	46,352
Pension and postretirement plans	(32,245)	(52,507)
Interest rate swap	(1,184)	(2,156)
Deferred compensation plan	3,259	2,774
Treasury stock, at cost: 2,967,999 shares and 2,998,620 shares at December 31, 2013 and 2012, respectively	(126,256)	(127,489)
Total shareholders’ equity	2,858,019	2,676,690
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	6,622,212	6,175,890
Alabama Gas Corporation
Current Assets
Cash and cash equivalents	3,032	5,559
Accounts receivable
Gas	103,301	94,011
Other	5,447	5,117
Affiliated companies	4,662	5,742
Allowance for doubtful accounts	(5,000)	(5,700)
Inventories
Storage gas inventory	32,095	32,205
Materials and supplies	5,471	5,528
Liquified natural gas in storage	3,634	3,498
Regulatory assets	2,756	45,515
Income tax receivable	3,644	2,762
Deferred income taxes	20,049	18,799
Prepayments and other	4,654	4,451
Total current assets	183,745	217,487
Property, Plant and Equipment
Utility plant	1,491,433	1,416,590
Less accumulated depreciation	605,924	573,947
Utility plant, net	885,509	842,643
Other property, net	41	42
Other Assets
Regulatory assets	84,890	110,566
Other postretirement assets	26,457	848
Deferred charges and other	17,433	11,290
Total other assets	128,780	122,704
TOTAL ASSETS	1,198,075	1,182,876
Current Liabilities
Notes payable to banks	50,000	77,000
Accounts payable	48,653	51,741
Accrued taxes	28,027	24,186
Customer deposits	21,692	24,705
Amounts due customers	16,990	19,718
Accrued wages and benefits	7,682	6,703
Regulatory liabilities	49,006	45,116
Other	10,113	9,018
Total current liabilities	232,163	258,187
Long-term debt	249,923	250,028
Deferred Credits and Other Liabilities
Pension liabilities	20,191	43,611
Regulatory liabilities	94,125	80,404
Deferred income taxes	205,631	189,381
Other	11,462	762
Total deferred credits and other liabilities	331,409	314,158
Commitments and Contingencies
Shareholders' Equity
Preferred stock, cumulative, $0.01 par value	0	0
Common shareholders’ equity
Common stock, $0.01 par value	20	20
Premium on capital stock	31,682	31,682
Capital surplus	2,802	2,802
Retained earnings	350,076	325,999
Accumulated other comprehensive income (loss), net of tax
Total shareholders’ equity	384,580	360,503
Total capitalization	634,503	610,531
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 1,198,075	$ 1,182,876