SHORT-TERM DEBT AND LINES OF CREDIT

The following table shows our short-term borrowings and their corresponding weighted-average interest rates:



(in millions, except percentages)	September 30, 2017			December 31, 2016
Commercial paper
Amount outstanding	$	993.5		$	860.2
Weighted-average interest rate on amounts outstanding	1.38		%	0.96		%

Our average amount of commercial paper borrowings based on daily outstanding balances during the nine months ended September 30, 2017, was $705.0 million with a weighted-average interest rate during the period of 1.21%.

The information in the table below relates to our revolving credit facilities used to support our commercial paper borrowing programs, including available capacity under these facilities:



(in millions)	Maturity	September 30, 2017
WEC Energy Group ⁽¹⁾	December 2020	$	1,050.0
WE ⁽²⁾	December 2020	500.0
WPS ⁽³⁾	December 2020	250.0
WG ⁽²⁾	December 2020	350.0
PGL ⁽²⁾	December 2020	350.0
Total short-term credit capacity		$	2,500.0
Less:
Letters of credit issued inside credit facilities		$	32.9
Commercial paper outstanding		993.5
Available capacity under existing agreements		$	1,473.6


⁽¹⁾	In October 2017, WEC Energy Group increased its credit facility to $1,200.0 million, and extended the maturity to October 2022.


⁽²⁾	In October 2017, WE, WG, and PGL extended the maturities of their credit facilities to October 2022.


⁽³⁾	In October 2017, WPS increased its credit facility to $400.0 million. WPS intends to request approval from the PSCW to extend the maturity of its facility to October 2022.