COMMITMENTS AND CONTINGENCIES (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of minimum future commitments related to purchase obligations



				Payments Due By Period
(Millions)	Date Contracts Extend Through	Total Amounts Committed		2013		2014		2015		2016		2017		Later Years
Natural gas utility supply and transportation	2028	$	823.2	$	124.9	$	156.3	$	137.9	$	125.7	$	86.9	$	191.5
Electric utility
Purchased power	2029	852.6		121.3		37.7		33.0		29.4		28.4		602.8
Coal supply and transportation	2017	122.7		44.4		41.2		30.4		6.2		0.5		—
Nonregulated electricity and natural gas supply	2020	830.6		479.8		305.9		34.3		4.6		1.3		4.7
Total		$	2,629.1	$	770.4	$	541.1	$	235.6	$	165.9	$	117.1	$	799.0

- Definition

Tabular disclosure of unconditional purchase obligations that are not recognized as a liability on the balance sheet, including the nature and significant terms of an unconditional purchase obligation; the amount of the fixed and determinable portion of the obligation as of the date of the latest balance sheet presented in the aggregate and, if determinable, for each of the five succeeding fiscal years; the nature of any variable components of the obligation; the amount purchased under the obligation (for example, the take-or-pay or throughput contract) for the reporting period; and may include the amount of imputed interest necessary to reduce the obligation to present value.

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