STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Net income	$ 84.6	$ 52.8	$ 62.6
Cash flow hedges:
Net derivatives (losses) gains arising during the period	(4.5)	5.0	4.8
Reclassification adjustment for derivative losses (gains) included in net income	2.5	0.3	(8.4)
Net (losses) gains on cash flow hedging derivative instruments	(2.0)	5.3	(3.6)
Defined benefit pension and other postretirement benefit plans:
Net actuarial loss arising during the period	0	(0.1)	(3.4)
Amortization of actuarial loss included in net periodic pension and postretirement benefit cost	0.5	0.2	3.7
Net defined benefit pension and other postretirement benefit plans	0.5	0.1	0.3
Other Comprehensive (Loss) Income, Before Tax	(1.5)	5.4	(3.3)
Income Tax (Benefit) Expense Related to Items of Other Comprehensive (Loss) Income	(0.6)	2.1	(1.3)
Other Comprehensive (Loss) Income, Net of Tax	(0.9)	3.3	(2.0)
Comprehensive Income	83.7	56.1	60.6
Laclede Gas
Net income	90.1	48.8	49.9
Cash flow hedges:
Net derivatives (losses) gains arising during the period	0.1	0.1	0.3
Reclassification adjustment for derivative losses (gains) included in net income	(0.2)	(0.2)	0
Net (losses) gains on cash flow hedging derivative instruments	(0.1)	(0.1)	0.3
Defined benefit pension and other postretirement benefit plans:
Net actuarial loss arising during the period	0	(0.1)	(3.4)
Amortization of actuarial loss included in net periodic pension and postretirement benefit cost	0.4	0.2	3.7
Net defined benefit pension and other postretirement benefit plans	0.4	0.1	0.3
Other Comprehensive (Loss) Income, Before Tax	0.3	0	0.6
Income Tax (Benefit) Expense Related to Items of Other Comprehensive (Loss) Income	0.1	0	0.2
Other Comprehensive (Loss) Income, Net of Tax	0.2	0	0.4
Comprehensive Income	$ 90.3	$ 48.8	$ 50.3