Revenue (Tables)

9 Months Ended

Jun. 30, 2019

Revenue From Contract With Customer [Abstract]

Schedule of Revenue Disaggregated by Source and Customer Type

The following tables show revenue disaggregated by source and customer type.

	Three Months Ended June 30, 2019			Nine Months Ended June 30, 2019
Spire
Gas Utility:
Residential	$	188.1		$	1,133.0
Commercial & industrial		68.5			384.7
Transportation		25.6			86.4
Off-system & other incentive		7.7			34.1
Other customer revenue		8.8			32.4
Total revenue from contracts with customers		298.7			1,670.6
Changes in accrued revenue under alternative revenue programs		2.9			(17.0	)
Total Gas Utility operating revenues		301.6			1,653.6
Gas Marketing:
Revenue from contracts with retail customers		18.3			69.6
Revenue from wholesale derivative contracts		—			—
Total Gas Marketing operating revenues		18.3			69.6
Other		4.6			14.3
Total before eliminations		324.5			1,737.5
Intersegment eliminations (see Note 11, Information by Operating Segment)		(3.2	)		(10.7	)
Total Operating Revenues	$	321.3		$	1,726.8

Spire Missouri
Residential	$	133.4	$	846.4
Commercial & industrial		39.6		257.9
Transportation		7.1		26.0
Off-system & other incentive		7.7		34.1
Other customer revenue		3.2		10.0
Total revenue from contracts with customers		191.0		1,174.4
Changes in accrued revenue under alternative revenue programs		0.4		(13.2	)
Total Operating Revenues	$	191.4	$	1,161.2

Spire Alabama
Residential	$	45.7	$	238.0
Commercial & industrial		21.6		97.1
Transportation		16.3		53.3
Other customer revenue		4.9		19.8
Total revenue from contracts with customers		88.5		408.2
Changes in accrued revenue under alternative revenue programs		2.3		(3.5	)
Total Operating Revenues	$	90.8	$	404.7

Schedule of Gross Receipts Taxes

The expense amounts (shown in the table below) are reported gross in the “Taxes, other than income taxes” line in the statements of income, and corresponding revenues are reported in “Operating Revenues.”

	Three Months Ended June 30,				Nine Months Ended June 30,
	2019		2018		2019		2018
Spire	$	18.2	$	20.4	$	87.6	$	87.1
Spire Missouri		12.5		14.5		63.1		61.3
Spire Alabama		4.8		5.2		20.7		22.4