Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2011

Operating Leased Assets [Line Items]

Schedule of minimum future rental payments

Minimum future rental payments required after 2011 under leases with initial or remaining noncancelable lease terms in excess of one year are as follows:

Years Ending December 31, (in thousands)
2012	2013	2014	2015	2016	2017 and thereafter
$5,047	$4,820	$4,013	$3,664	$2,274	$12,729

Alabama Gas Corporation

Operating Leased Assets [Line Items]

Schedule of minimum future rental payments

Minimum future rental payments required after 2011 under leases with initial or remaining noncancelable lease terms in excess of one year are as follows:

Years Ending December 31, (in thousands)
2012	2013	2014	2015	2016	2017 and thereafter
$3,238	$3,184	$3,180	$3,201	$2,093	$12,729