CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Net Income	$ 14.1	$ 11.7	$ 155.6	$ 99.5
Cash flow hedging derivative instruments:
Net hedging gain (loss) arising during the period	0.3	(10.4)	(6.2)	(15.5)
Reclassification adjustment for losses (gains) included in net income	1.3	0.8	3.5	2.8
Net unrealized gains (losses) on cash flow hedging derivative instruments	1.6	(9.6)	(2.7)	(12.7)
Defined benefit pension and other postretirement plans:
Net actuarial gain arising during the period	0.1	0.0	0.1	0.0
Amortization of actuarial loss included in net periodic pension and postretirement benefit cost	0.0	0.1	0.2	0.3
Net defined benefit pension and other postretirement plans	0.1	0.1	0.3	0.3
Other Comprehensive Income (Loss), Before Tax	1.7	(9.5)	(2.4)	(12.4)
Income Tax Expense (Benefit) Related to Items of Other Comprehensive Income	0.7	(3.6)	(0.9)	(4.7)
Other Comprehensive Income (Loss), Net of Tax	1.0	(5.9)	(1.5)	(7.7)
Comprehensive Income	15.1	5.8	154.1	91.8
Laclede Gas
Net Income	20.0	12.0	108.9	91.5
Cash flow hedging derivative instruments:
Net hedging gain (loss) arising during the period	0.2	0.0	(1.1)	0.1
Reclassification adjustment for losses (gains) included in net income	0.3	0.0	0.7	(0.1)
Net unrealized gains (losses) on cash flow hedging derivative instruments	0.5	0.0	(0.4)	0.0
Defined benefit pension and other postretirement plans:
Net actuarial gain arising during the period	0.1	0.0	0.1	0.0
Amortization of actuarial loss included in net periodic pension and postretirement benefit cost	0.1	0.0	0.2	0.2
Net defined benefit pension and other postretirement plans	0.2	0.0	0.3	0.2
Other Comprehensive Income (Loss), Before Tax	0.7	0.0	(0.1)	0.2
Income Tax Expense (Benefit) Related to Items of Other Comprehensive Income	0.3	0.0	0.0	0.1
Other Comprehensive Income (Loss), Net of Tax	0.4	0.0	(0.1)	0.1
Comprehensive Income	$ 20.4	$ 12.0	$ 108.8	$ 91.6