COMMITMENTS AND CONTINGENCIES Schedule of minimum future commitments related to purchase obligations (Tables)

6 Months Ended

Jun. 30, 2013

Commitments and Contingencies Disclosure [Abstract]

Schedule of minimum future commitments related to purchase obligations

We and our subsidiaries routinely enter into long-term purchase and sale commitments for various quantities and lengths of time. The regulated natural gas utilities have obligations to distribute and sell natural gas to their customers, and the regulated electric utilities have obligations to distribute and sell electricity to their customers. The utilities expect to recover costs related to these obligations in future customer rates. Additionally, the majority of the energy supply contracts entered into by Integrys Energy Services are to meet its obligations to deliver energy to customers. The following table shows our minimum future commitments related to these purchase obligations as of June 30, 2013, including those of our subsidiaries.



				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	$	783.1	$	83.5	$	156.7	$	138.5	$	126.0	$	86.9	$	191.5
Electric utility
Purchased power	2029	810.0		79.4		40.0		31.9		28.7		27.7		602.3
Coal supply and transportation	2017	116.5		29.4		44.2		31.5		7.2		4.2		—
Nonregulated electricity and natural gas supply	2020	1,319.7		541.4		611.0		132.0		25.7		4.3		5.3
Total		$	3,029.3	$	733.7	$	851.9	$	333.9	$	187.6	$	123.1	$	799.1

- 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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