SHORT-TERM DEBT AND LINES OF CREDIT (Tables)

12 Months Ended

Dec. 31, 2014

Our outstanding short-term borrowings were as follows:



(Millions, except percentages)	2014		2013			2012
Commercial paper
Amount outstanding at December 31 ⁽¹⁾	$	145.1	$	25.6		$	95.4
Average interest rate on amounts outstanding at December 31	0.32%		0.14		%	0.24		%
Average amount outstanding during the year ⁽²⁾	$	43.3	$	80.8		$	150.2
Short-term notes payable ⁽³⁾
Average amount outstanding during the year ⁽²⁾	$	—	$	130.4		$	—


⁽¹⁾	Maturity dates ranged from January 5, 2015, through January 16, 2015.


⁽²⁾	Based on daily outstanding balances during the year.


⁽³⁾	Short-term notes payable related to a $200.0 million loan used for the purchase of Fox Energy Company LLC in March 2013. This loan was repaid in November 2013, and therefore no balance was outstanding at December 31, 2014, 2013, and 2012. See Note 3, Acquisition of Fox Energy Center, for more information regarding this purchase.

Schedule of revolving credit facilities and remaining available capacity

The information in the table below relates to our revolving credit facilities used to support our commercial paper borrowing program, including remaining available capacity under these facilities as of December 31:



(Millions)	Maturity	2014		2013
Revolving credit facility ⁽¹⁾	05/17/2014	$	—	$	135.0
Revolving credit facility ⁽²⁾	05/07/2015	135.0		—
Revolving credit facility	06/13/2017	115.0		115.0

Total short-term credit capacity		$	250.0	$	250.0

Less: commercial paper outstanding		145.1		25.6

Available capacity under existing agreements		$	104.9	$	224.4


⁽¹⁾	This credit facility was terminated and replaced with a new credit facility in May 2014.


⁽²⁾	We requested approval from the PSCW to extend this facility through May 8, 2019.