INTERIM FINANCIAL INFORMATION (UNAUDITED) (Tables)

12 Months Ended

Sep. 30, 2016

Quarterly Financial Information [Line Items]

Schedule of Quarterly Financial Information

Three Months Ended	Dec. 31		March 31		June 30		Sept. 30
Fiscal Year 2016
Total Operating Revenues	$	399.4	$	609.3	$	249.3	$	279.3
Operating Income (Loss)	87.0		167.7		35.3		(7.7		)
Net Income (Loss)	46.9		100.8		10.7		(14.2		)
Basic Earnings (Loss) Per Share of Common Stock	$	1.08	$	2.32	$	0.24	$	(0.31	)
Diluted Earnings (Loss) Per Share of Common Stock	$	1.08	$	2.31	$	0.24	$	(0.31	)
Fiscal Year 2015
Total Operating Revenues	$	619.6	$	877.4	$	275.2	$	204.2
Operating Income (Loss)	87.3		157.7		36.0		(8.5		)
Net Income (Loss)	47.1		94.4		14.1		(18.7		)
Basic Earnings (Loss) Per Share of Common Stock	$	1.09	$	2.18	$	0.32	$	(0.43	)
Diluted Earnings (Loss) Per Share of Common Stock	$	1.09	$	2.18	$	0.32	$	(0.43	)

Laclede Gas

Quarterly Financial Information [Line Items]

Schedule of Quarterly Financial Information

Three Months Ended	Dec. 31		March 31		June 30		Sept. 30
Fiscal Year 2016
Total Operating Revenues	$	317.2	$	446.7	$	179.3	$	144.3
Operating Income	65.1		87.0		29.4		5.4
Net Income (Loss)	39.4		54.3		13.9		(1.7		)
Fiscal Year 2015
Total Operating Revenues	$	462.4	$	615.7	$	187.5	$	151.0
Operating Income	64.8		80.6		34.5		5.5
Net Income (Loss)	39.0		49.9		20.0		(3.6		)

Alagasco

Quarterly Financial Information [Line Items]

Schedule of Quarterly Financial Information

Three Months Ended	Dec. 31		March 31		June 30		Sept. 30
Fiscal Year 2016
Total Operating Revenues	$	82.3	$	166.0	$	74.0	$	46.2
Operating Income (Loss)	18.9		80.4		9.3		(17.1		)
Net Income (Loss)	9.9		48.1		4.0		(8.8		)
Fiscal Year 2015
Total Operating Revenues	$	120.0	$	233.3	$	73.7	$	52.2
Operating Income (Loss)	20.4		77.4		3.9		(12.5		)
Net Income (Loss)	10.6		46.3		0.7		(9.6		)