Long-Term Contractual Arrangements (Tables)

6 Months Ended

Jun. 30, 2012

Notes To Consolidated Financial Statements [Abstract]

Long-term Purchase Commitment [Table Text Block]

	July - December
(Millions of Dollars)	2012		2013		2014		2015		2016		Thereafter		Totals
Supply/Stranded Cost Contracts/Obligations	$	16.3	$	28.7	$	33.0	$	32.9	$	12.6	$	7.1	$	130.6
Renewable Energy Supply Contracts		33.7		87.3		86.6		87.9		52.1		252.8		600.4
Transmission Support Commitments		1.9		3.7		3.6		3.5		0.0		0.0		12.7
Natural Gas Procurement Contracts		108.5		54.0		47.5		24.7		21.6		78.5		334.8
Future Minimum Operating Lease Payments		6.4		11.5		8.4		7.3		5.7		12.2		51.5
Electric Interconnection Agreement		1.7		3.4		3.4		3.4		3.3		41.1		56.3
Totals	$	168.5	$	188.6	$	182.5	$	159.7	$	95.3	$	391.7	$	1,186.3