CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Operating Revenues:
Gas Utility	$ 472.3	$ 398.8
Gas Marketing and other	22.8	0.6
Total Operating Revenues	495.1	399.4
Gas Utility
Natural and propane gas	193.8	148.5
Other operation and maintenance expenses	99.4	91.6
Depreciation and amortization	37.7	33.5
Taxes, other than income taxes	33.4	28.2
Total Gas Utility Operating Expenses	364.3	301.8
Gas Marketing and other	41.7	10.6
Total Operating Expenses	406.0	312.4
Operating Income	89.1	87.0
Other Income	0.5	1.4
Interest Charges:
Interest on long-term debt	19.1	16.9
Other interest charges	3.0	2.1
Total Interest Charges	22.1	19.0
Income Before Income Taxes	67.5	69.4
Income Tax Expense	22.3	22.5
Net Income	$ 45.2	$ 46.9
Weighted Average Number of Common Shares Outstanding:
Basic (in shares)	45.5	43.2
Diluted (in shares)	45.7	43.4
Basic Earnings Per Share of Common Stock (in dollars per share)	$ 0.99	$ 1.08
Diluted Earnings Per Share of Common Stock (in dollars per share)	0.99	1.08
Dividends Declared Per Share of Common Stock (in dollars per share)	$ 0.53	$ 0.49
Laclede Gas
Operating Revenues:
Gas Utility	$ 363.6	$ 317.2
Total Operating Revenues	363.6	317.2
Gas Utility
Natural and propane gas	191.3	149.8
Other operation and maintenance expenses	60.5	58.8
Depreciation and amortization	22.7	21.8
Taxes, other than income taxes	24.6	21.7
Total Operating Expenses	299.1	252.1
Operating Income	64.5	65.1
Other Income	0.1	0.8
Interest Charges:
Interest on long-term debt	8.3	8.4
Other interest charges	1.4	0.9
Total Interest Charges	9.7	9.3
Income Before Income Taxes	54.9	56.6
Income Tax Expense	16.9	17.2
Net Income	38.0	39.4
Alagasco
Operating Revenues:
Gas Utility	86.7	82.3
Total Operating Revenues	86.7	82.3
Gas Utility
Natural and propane gas	16.8	12.1
Other operation and maintenance expenses	31.2	33.1
Depreciation and amortization	12.3	11.7
Taxes, other than income taxes	6.6	6.5
Total Operating Expenses	66.9	63.4
Operating Income	19.8	18.9
Other Income	0.4	0.5
Interest Charges:
Interest on long-term debt	2.8	3.0
Other interest charges	0.8	0.5
Total Interest Charges	3.6	3.5
Income Before Income Taxes	16.6	15.9
Income Tax Expense	6.3	6.0
Net Income	$ 10.3	$ 9.9