Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2015

The table below contains significant affiliate transactions among the companies and related parties for the years ended Dec. 31:



(Thousands of Dollars)	2015		2014		2013
Operating revenues:
Electric	$	8,632	$	9,614	$	8,136
Other	4,441		4,441		4,441
Operating expenses:
Purchased power	—		23		1,331
Other operating expenses — paid to Xcel Energy Services Inc.	414,620		454,250		375,766
Interest expense	211		158		132
Interest income	45		61		273

Accounts receivable and payable with affiliates at Dec. 31 were:



	2015				2014
(Thousands of Dollars)	Accounts Receivable		Accounts Payable		Accounts Receivable		Accounts Payable
NSP-Minnesota	$	4,419	$	—	$	—	$	6,706
NSP-Wisconsin	71		—		22		—
SPS	414		—		5,803		—
Other subsidiaries of Xcel Energy Inc.	5		76,643		45,017		40,030
	$	4,909	$	76,643	$	50,842	$	46,736