INFORMATION BY OPERATING SEGMENT (Tables)

3 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Schedule of operating segment information

	Gas Utility		Gas Marketing		Other			Eliminations			Consolidated
Three Months Ended December 31, 2017
Operating Revenues:
Revenues from external customers	$	541.9	$	19.6	$	0.3		$	—		$	561.8
Intersegment revenues	0.1		—		2.5			(2.6		)	—
Total Operating Revenues	542.0		19.6		2.8			(2.6		)	561.8
Operating Expenses:
Gas Utility
Natural and propane gas	263.4		—		—			(22.6		)	240.8
Operation and maintenance	99.8		—		—			(1.9		)	97.9
Depreciation and amortization	40.3		—		—			—			40.3
Taxes, other than income taxes	36.7		—		—			—			36.7
Total Gas Utility Operating Expenses	440.2		—		—			(24.5		)	415.7
Gas Marketing and Other	—		14.6		4.5			21.9			41.0
Total Operating Expenses	440.2		14.6		4.5			(2.6		)	456.7
Operating Income (Loss)	$	101.8	$	5.0	$	(1.7	)	$	—		$	105.1
Net Economic Earnings (Loss)	$	59.5	$	3.6	$	(5.2	)	$	—		$	57.9

	Gas Utility		Gas Marketing			Other			Eliminations			Consolidated
Three Months Ended December 31, 2016
Operating Revenues:
Revenues from external customers	$	472.3	$	21.7		$	1.1		$	—		$	495.1
Intersegment revenues	4.4		—			0.7			(5.1		)	—
Total Operating Revenues	476.7		21.7			1.8			(5.1		)	495.1
Operating Expenses:
Gas Utility
Natural and propane gas	214.5		—			—			(20.7		)	193.8
Operation and maintenance	100.5		—			—			(1.1		)	99.4
Depreciation and amortization	37.7		—			—			—			37.7
Taxes, other than income taxes	33.4		—			—			—			33.4
Total Gas Utility Operating Expenses	386.1		—			—			(21.8		)	364.3
Gas Marketing and Other	—		23.0			2.0			16.7			41.7
Total Operating Expenses	386.1		23.0			2.0			(5.1		)	406.0
Operating Income (Loss)	$	90.6	$	(1.3	)	$	(0.2	)	$	—		$	89.1
Net Economic Earnings (Loss)	$	51.8	$	1.4		$	(5.7	)	$	—		$	47.5

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

	December 31,			September 30,			December 31,
	2017			2017			2016
Total Assets:
Gas Utility	$	5,611.7		$	5,551.2		$	5,375.6
Gas Marketing	233.5			246.2			225.0
Other	2,427.7			2,239.5			1,848.7
Eliminations	(1,571.8		)	(1,490.2		)	(1,139.2		)
Total Assets	$	6,701.1		$	6,546.7		$	6,310.1

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 December 31,
	2017			2016
Net Income	$	116.0		$	45.2
Adjustments, pre-tax:
Unrealized loss on energy-related derivative contracts	0.8			3.8
Lower of cost or market inventory adjustments	—			(0.1		)
Realized gain on economic hedges prior to sale of the physical commodity	(0.1		)	(0.1		)
Acquisition, divestiture and restructuring activities	1.7			0.1
Income tax effect of adjustments	(0.6		)	(1.4		)
Effects of the Tax Cuts and Jobs Act	(59.9		)	—
Net Economic Earnings	$	57.9		$	47.5