Note 14 - Information by Operating Segment (Tables)

12 Months Ended

Sep. 30, 2022

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Gas		Gas
2022	Utility		Marketing		Other			Eliminations			Consolidated
Revenues from external customers	$	1,945.6	$	234.9	$	18.0		$	—		$	2,198.5
Intersegment revenues		0.5		—		51.2			(51.7	)		—
Total Operating Revenues		1,946.1		234.9		69.2			(51.7	)		2,198.5
Operating Expenses
Natural gas		788.8		171.4		—			(36.3	)		923.9
Other operation and maintenance		413.3		14.6		37.1			(15.4	)		449.6
Depreciation and amortization		227.9		1.4		8.0			—			237.3
Taxes, other than income taxes		176.2		0.6		2.7			—			179.5
Total Operating Expenses		1,606.2		188.0		47.8			(51.7	)		1,790.3
Operating Income	$	339.9	$	46.9	$	21.4		$	—		$	408.2
Net Economic Earnings (Loss)	$	202.7	$	27.0	$	(13.4	)	$	—		$	216.3
Capital Expenditures	$	528.6	$	0.9	$	22.7		$	—		$	552.2

	Gas		Gas
2021	Utility		Marketing		Other			Eliminations			Consolidated
Revenues from external customers	$	2,118.2	$	96.5	$	20.8		$	—		$	2,235.5
Intersegment revenues		1.1		—		46.9			(48.0	)		—
Total Operating Revenues		2,119.3		96.5		67.7			(48.0	)		2,235.5
Operating Expenses
Natural gas		961.7		18.8		0.1			(34.3	)		946.3
Other operation and maintenance		422.2		17.1		40.2			(13.7	)		465.8
Depreciation and amortization		204.4		1.2		7.5			—			213.1
Taxes, other than income taxes		157.0		0.9		2.2			—			160.1
Impairments		—		—		—			—			—
Total Operating Expenses		1,745.3		38.0		50.0			(48.0	)		1,785.3
Operating Income	$	374.0	$	58.5	$	17.7		$	—		$	450.2
Net Economic Earnings (Loss)	$	230.6	$	47.0	$	(11.3	)	$	—		$	266.3
Capital Expenditures	$	590.4	$	0.7	$	33.7		$	—		$	624.8

	Gas		Gas
2020	Utility		Marketing		Other			Eliminations			Consolidated
Revenues from external customers	$	1,751.8	$	87.9	$	15.7		$	—		$	1,855.4
Intersegment revenues		0.2		—		42.1			(42.3	)		—
Total Operating Revenues		1,752.0		87.9		57.8			(42.3	)		1,855.4
Operating Expenses
Natural gas		660.2		65.1		0.4			(29.6	)		696.1
Other operation and maintenance		421.3		11.8		38.2			(12.7	)		458.6
Depreciation and amortization		189.7		0.6		7.0			—			197.3
Taxes, other than income taxes		146.5		1.1		0.8			—			148.4
Impairments		—		—		148.6			—			148.6
Total Operating Expenses		1,417.7		78.6		195.0			(42.3	)		1,649.0
Operating Income (Loss)	$	334.3	$	9.3	$	(137.2	)	$	—		$	206.4
Net Economic Earnings (Loss)	$	213.4	$	9.1	$	(14.7	)	$	—		$	207.8
Capital Expenditures	$	547.8	$	3.6	$	87.0		$	—		$	638.4

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

Total Assets at End of Year	2022			2021			2020
Gas Utility	$	8,042.8		$	7,615.4		$	6,716.2
Gas Marketing		638.7			466.1			182.7
Other		2,895.2			2,351.7			2,443.5
Eliminations		(1,493.0	)		(1,076.8	)		(1,101.2	)
Total Assets	$	10,083.7		$	9,356.4		$	8,241.2

Reconciliation Of Consolidated Net Economic Earnings To Consolidated Net Income [Table Text Block]

Reconciliation of Consolidated Net Income to Consolidated Net Economic Earnings	2022			2021			2020
Net Income	$	220.8		$	271.7		$	88.6
Adjustments, pre-tax:
Impairments		—			—			148.6
Missouri regulatory adjustments		—			(9.0	)		—
Fair value and timing adjustments		(11.4	)		3.3			2.5
Acquisition, divestiture and restructuring activities		—			(1.3	)		—
Income tax effect of adjustments		6.9			1.6			(31.9	)
Net Economic Earnings	$	216.3		$	266.3		$	207.8