Segment Information (Tables)

3 Months Ended

Mar. 31, 2019

Segment Reporting [Abstract]

Results from Operations by Reportable Segment

NSP-Wisconsin's segment information for the three months ended March 31:

(Millions of Dollars)	2019			2018
Regulated Electric
Operating revenues (a)	$	215.0		$	216.3
Intersegment revenues	0.1			0.1
Total operating revenue	215.1			216.4
Net income	13.2			20.4
Regulated Natural Gas
Operating revenues (a)	$	61.1		$	56.5
Intersegment revenues	0.2			0.1
Total operating revenue	61.3			56.6
Net income	10.5			10.4
All Other
Operating revenues (a)	$	0.1		$	0.3
Intersegment revenues	—			—
Total operating revenue	0.1			0.3
Net income	0.3			0.6
Consolidated Total
Operating revenues (a)	$	276.5		$	273.3
Reconciling Eliminations	(0.3		)	(0.2		)
Total operating revenue	276.2			273.1
Net income	24.0			31.4

^(a)  Operating revenues include $44.1 million and $37.7 million of affiliate electric revenue for the three months ended March 31, 2019 and 2018, respectively.