Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2013

Commitments and Contingencies

Schedule of coal, natural gas and transportation contracts

The following table sets forth our firm physical gas, coal and transportation contracts for the periods indicated as of March 31, 2013 (in millions).

	Firm physical gas and transportation contracts		Coal and coal  transportation contracts
April 1, 2013 through December 31, 2013	$	24.5	$	16.8
January 1, 2014 through December 31, 2015	29.9		32.1
January 1, 2016 through December 31, 2017	22.2		22.7
January 1, 2018 and beyond	8.3		22.7