SHORT-TERM DEBT AND LINES OF CREDIT (Tables)

3 Months Ended

Mar. 31, 2013

SHORT-TERM DEBT AND LINES OF CREDIT

Schedule of short-term borrowings

(Millions, except percentages)	March 31, 2013		December 31, 2012
Commercial paper	$	556.4	$	482.4
Average discount rate on commercial paper	0.33%		0.40%
Loan under term credit facility *	$	200.0	—
Average interest rate on loan under term credit facility	0.80%		—

* Relates to the purchase of Fox Energy Company LLC. See Note 4, "Acquisitions," for more information regarding this purchase.

Schedule of average amount of short-term borrowings

(Millions)	2013		2012
Average amount of commercial paper	$	400.7	$	357.5
Average amount of loan under term credit facility	8.9		—

Schedule of revolving credit facilities and remaining available capacity

(Millions)	Maturity	March 31, 2013		December 31, 2012
Revolving credit facility (Integrys Energy Group)	05/17/2014	$	275.0	$	275.0
Revolving credit facility (Integrys Energy Group)	05/17/2016	200.0		200.0
Revolving credit facility (Integrys Energy Group)	06/13/2017	635.0		635.0
Revolving credit facility (WPS)	05/17/2014	135.0		135.0
Revolving credit facility (WPS)	06/13/2017	115.0		115.0
Revolving credit facility (PGL)	06/13/2017	250.0		250.0
Term credit facility (WPS) *	12/31/2013	200.0		—
Total short-term credit capacity		$	1,810.0	$	1,610.0
Less:
Letters of credit issued inside credit facilities		$	29.1	$	25.5
Loan outstanding under term credit facility *		200.0		—
Commercial paper outstanding		556.4		482.4
Accrued interest or original discount on outstanding commercial paper		0.1		—
Available capacity under existing agreements		$	1,024.4	$	1,102.1

* Relates to the purchase of Fox Energy Company LLC. See Note 4, "Acquisitions," for more information regarding this purchase.