Information by Operating Segment (Tables)

9 Months Ended

Jun. 30, 2020

Segment Reporting [Abstract]

Schedule of Operating Segment Information

	Gas Utility		Gas Marketing			Other			Eliminations			Consolidated
Three Months Ended June 30, 2020
Operating Revenues:
Revenues from external customers	$	305.7	$	11.6		$	3.8		$	—		$	321.1
Intersegment revenues		0.3		—			11.6			(11.9	)		—
Total Operating Revenues		306.0		11.6			15.4			(11.9	)		321.1
Operating Expenses:
Gas Utility
Natural and propane gas		90.6		—			—			(19.9	)		70.7
Operation and maintenance		115.5		—			—			(3.0	)		112.5
Depreciation and amortization		47.8		—			—			—			47.8
Taxes, other than income taxes		31.7		—			—			—			31.7
Total Gas Utility Operating Expenses		285.6		—			—			(22.9	)		262.7
Impairments		—		—			148.6			—			148.6
Gas Marketing and Other		—		(6.6	)		11.9			11.0			16.3
Total Operating Expenses		285.6		(6.6	)		160.5			(11.9	)		427.6
Operating Income (Loss)	$	20.4	$	18.2		$	(145.1	)	$	—		$	(106.5	)
Net Economic Earnings (Loss)	$	8.4	$	0.1		$	(1.2	)	$	—		$	7.3

	Gas Utility		Gas Marketing			Other			Eliminations			Consolidated
Three Months Ended June 30, 2019
Operating Revenues:
Revenues from external customers	$	301.4	$	18.4		$	1.5		$	—		$	321.3
Intersegment revenues		0.2		(0.1	)		3.1			(3.2	)		—
Total Operating Revenues		301.6		18.3			4.6			(3.2	)		321.3
Operating Expenses:
Gas Utility
Natural and propane gas		88.1		—			—			(12.6	)		75.5
Operation and maintenance		113.4		—			—			(2.2	)		111.2
Depreciation and amortization		45.1		—			—			—			45.1
Taxes, other than income taxes		29.7		—			—			—			29.7
Total Gas Utility Operating Expenses		276.3		—			—			(14.8	)		261.5
Gas Marketing and Other		—		25.3			9.6			11.6			46.5
Total Operating Expenses		276.3		25.3			9.6			(3.2	)		308.0
Operating Income (Loss)	$	25.3	$	(7.0	)	$	(5.0	)	$	—		$	13.3
Net Economic Earnings (Loss)	$	7.6	$	3.3		$	(5.9	)	$	—		$	5.0

	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Nine Months Ended June 30, 2020
Operating Revenues:
Revenues from external customers	$	1,515.4	$	77.2	$	10.9		$	—		$	1,603.5
Intersegment revenues		0.3		—		30.3			(30.6	)		—
Total Operating Revenues		1,515.7		77.2		41.2			(30.6	)		1,603.5
Operating Expenses:
Gas Utility
Natural and propane gas		603.7		—		—			(69.4	)		534.3
Operation and maintenance		319.9		—		—			(8.3	)		311.6
Depreciation and amortization		141.2		—		—			—			141.2
Taxes, other than income taxes		121.3		—		—			—			121.3
Total Gas Utility Operating Expenses		1,186.1		—		—			(77.7	)		1,108.4
Impairments		—		—		148.6			—			148.6
Gas Marketing and Other		—		59.0		34.1			47.1			140.2
Total Operating Expenses		1,186.1		59.0		182.7			(30.6	)		1,397.2
Operating Income (Loss)	$	329.6	$	18.2	$	(141.5	)	$	—		$	206.3
Net Economic Earnings (Loss)	$	221.8	$	11.3	$	(10.0	)	$	—		$	223.1
	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Nine Months Ended June 30, 2019
Operating Revenues:
Revenues from external customers	$	1,651.9	$	69.6	$	5.3		$	—		$	1,726.8
Intersegment revenues		1.7		—		9.0			(10.7	)		—
Total Operating Revenues		1,653.6		69.6		14.3			(10.7	)		1,726.8
Operating Expenses:
Gas Utility
Natural and propane gas		746.6		—		—			(82.0	)		664.6
Operation and maintenance		330.3		—		—			(7.1	)		323.2
Depreciation and amortization		133.2		—		—			—			133.2
Taxes, other than income taxes		126.3		—		—			—			126.3
Total Gas Utility Operating Expenses		1,336.4		—		—			(89.1	)		1,247.3
Gas Marketing and Other		—		47.3		25.9			78.4			151.6
Total Operating Expenses		1,336.4		47.3		25.9			(10.7	)		1,398.9
Operating Income (Loss)	$	317.2	$	22.3	$	(11.6	)	$	—		$	327.9
Net Economic Earnings (Loss)	$	220.7	$	17.8	$	(19.7	)	$	—		$	218.8

The Company’s total assets by segment were as follows:

	June 30,			September 30,			June 30,
	2020			2019			2019
Total Assets:
Gas Utility	$	6,330.1		$	6,094.6		$	5,830.1
Gas Marketing		158.6			212.3			232.3
Other		2,324.8			2,692.7			2,537.4
Eliminations		(990.9	)		(1,380.4	)		(1,267.8	)
Total Assets	$	7,822.6		$	7,619.2		$	7,332.0

Schedule of Reconciliation of Consolidated Net Economic Earnings to Consolidated Net Income

The following table reconciles the Company’s net economic earnings to net income.

	Three Months Ended June 30,						Nine Months Ended June 30,
	2020			2019			2020			2019
Net Income	$	(92.3	)	$	(3.0	)	$	108.3		$	218.9
Adjustments, pre-tax:
Impairments		148.6			—			148.6			—
Provision for ISRS rulings		(4.8	)		—			—			—
Unrealized (gain) loss on energy-related derivatives		(18.5	)		8.0			(3.2	)		(3.3	)
Lower of cost or market inventory adjustments		—			2.7			—			2.7
Acquisition, divestiture and restructuring activities		—			—			—			0.4
Income tax effect of adjustments		(25.7	)		(2.7	)		(30.6	)		0.1
Net Economic Earnings	$	7.3		$	5.0		$	223.1		$	218.8