Regulatory Assets and Liabilities (Alabama Gas Corporation)

6 Months Ended

Jun. 30, 2014

Alabama Gas Corporation

Regulatory Assets and Liabilities [Line Items]

Regulatory Assets and Liabilities

REGULATORY ASSETS AND LIABILITIES

The following table details regulatory assets and liabilities on the balance sheets:

(in thousands)	June 30, 2014				December 31, 2013
	Current		Noncurrent		Current		Noncurrent
Regulatory assets:
Pension assets	$	1,284	$	65,627	$	325	$	58,243
Accretion and depreciation of asset retirement obligations	—		18,825		—		18,046
Rate recovery of asset removal costs, net	—		3,405		—		4,601
Enhanced stability reserve	—		4,000		—		4,000
Gas supply adjustment	—		—		2,406		—
RSE adjustment	1,032		—		25		—
Total regulatory assets	$	2,316	$	91,857	$	2,756	$	84,890
Regulatory liabilities:
RSE adjustment	$	18,578	$	—	$	4,690	$	—
Unbilled service margin	6,445		—		28,504		—
Postretirement liabilities	—		26,948		—		26,197
Gas supply adjustment	25,985		—		—		—
Refundable negative salvage	13,360		26,760		15,779		39,663
Asset retirement obligation	—		28,152		—		27,528
Other	33		720		33		737
Total regulatory liabilities	$	64,401	$	82,580	$	49,006	$	94,125