Long-Term Contractual Arrangements (Tables)

9 Months Ended

Sep. 30, 2012

Notes To Consolidated Financial Statements [Abstract]

Long-term Purchase Commitment [Table Text Block]

	October - December
(Millions of Dollars)	2012		2013		2014		2015		2016		Thereafter		Totals
Supply/Stranded Cost Contracts/Obligations	$	8.1	$	28.7	$	33.0	$	32.9	$	12.6	$	7.1	$	122.4
Renewable Energy Supply Contracts		16.8		87.3		86.6		87.9		52.1		252.8		583.5
Transmission Support Commitments		1.0		3.7		3.6		3.5		0.0		0.0		11.8
Natural Gas Procurement Contracts		54.3		54.0		47.5		24.7		21.6		78.5		280.6
Future Minimum Operating Lease Payments		3.2		11.5		8.4		7.3		5.7		12.2		48.3
Electric Interconnection Agreement		0.9		3.4		3.4		3.4		3.3		41.1		55.5
Totals	$	84.3	$	188.6	$	182.5	$	159.7	$	95.3	$	391.7	$	1,102.1