QUARTERLY FINANCIAL INFORMATION (UNAUDITED)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

QUARTERLY FINANCIAL INFORMATION (UNAUDITED)

QUARTERLY FINANCIAL INFORMATION (Unaudited)

(in millions)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total
2019
Operating revenues	$	395.8	$	320.9	$	352.3	$	342.9	$	1,411.9
Operating income	60.6		59.8		78.0		69.2		267.6
Net income	40.9		41.5		55.0		47.3		184.7
2018
Operating revenues	$	393.6	$	350.1	$	379.2	$	375.6	$	1,498.5
Operating income	69.2		72.4		86.4		38.4		266.4
Net income	49.8		42.7		57.0		23.3		172.8