CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Operating Revenues:
Gas Utility	$ 611.5	$ 847.0	$ 1,010.3	$ 1,428.4
Gas Marketing and other	(2.2)	30.4	(1.6)	68.6
Total Operating Revenues	609.3	877.4	1,008.7	1,497.0
Gas Utility
Natural and propane gas	261.1	482.8	409.6	787.1
Other operation and maintenance expenses	94.3	103.8	185.9	200.9
Depreciation and amortization	33.8	32.2	67.3	64.2
Taxes, other than income taxes	43.9	55.7	72.1	93.7
Total Gas Utility Operating Expenses	433.1	674.5	734.9	1,145.9
Gas Marketing and other	8.5	45.2	19.1	106.1
Total Operating Expenses	441.6	719.7	754.0	1,252.0
Operating Income	167.7	157.7	254.7	245.0
Other Income	0.8	0.7	2.2	2.1
Interest Charges:
Interest on long-term debt	16.7	16.5	33.6	33.7
Other interest charges	2.6	2.6	4.7	4.6
Total Interest Charges	19.3	19.1	38.3	38.3
Income Before Income Taxes	149.2	139.3	218.6	208.8
Income Tax Expense	48.4	44.9	70.9	67.3
Net Income	$ 100.8	$ 94.4	$ 147.7	$ 141.5
Weighted Average Number of Common Shares Outstanding:
Basic (in shares)	43.3	43.1	43.3	43.1
Diluted (in shares)	43.5	43.2	43.5	43.2
Basic Earnings Per Share of Common Stock (in dollars per share)	$ 2.32	$ 2.18	$ 3.40	$ 3.27
Diluted Earnings Per Share of Common Stock (in dollars per share)	2.31	2.18	3.39	3.26
Dividends Declared Per Share of Common Stock (in dollars per share)	$ 0.49	$ 0.46	$ 0.98	$ 0.92
Laclede Gas
Operating Revenues:
Gas Utility	$ 446.7	$ 615.7	$ 763.9	$ 1,078.1
Total Operating Revenues	446.7	615.7	763.9	1,078.1
Gas Utility
Natural and propane gas	242.8	402.7	392.6	686.1
Other operation and maintenance expenses	61.5	69.6	120.3	134.4
Depreciation and amortization	21.9	20.5	43.7	40.7
Taxes, other than income taxes	33.5	42.3	55.2	71.5
Total Gas Utility Operating Expenses	359.7	535.1	611.8	932.7
Operating Income	87.0	80.6	152.1	145.4
Other Income	0.4	0.4	1.2	1.3
Interest Charges:
Interest on long-term debt	8.2	8.3	16.6	16.6
Other interest charges	1.3	1.2	2.2	2.2
Total Interest Charges	9.5	9.5	18.8	18.8
Income Before Income Taxes	77.9	71.5	134.5	127.9
Income Tax Expense	23.6	21.6	40.8	39.0
Net Income	54.3	49.9	93.7	88.9
Alagasco
Operating Revenues:
Gas Utility	166.0	233.3	248.3	353.3
Total Operating Revenues	166.0	233.3	248.3	353.3
Gas Utility
Natural and propane gas	30.2	96.4	42.3	142.8
Other operation and maintenance expenses	33.1	34.4	66.2	67.0
Depreciation and amortization	11.9	11.7	23.6	23.5
Taxes, other than income taxes	10.4	13.4	16.9	22.2
Total Operating Expenses	85.6	155.9	149.0	255.5
Operating Income	80.4	77.4	99.3	97.8
Other Income	0.5	0.6	1.0	1.0
Interest Charges:
Interest on long-term debt	2.7	2.8	5.7	6.0
Other interest charges	0.8	0.7	1.3	1.3
Total Interest Charges	3.5	3.5	7.0	7.3
Income Before Income Taxes	77.4	74.5	93.3	91.5
Income Tax Expense	29.3	28.2	35.3	34.6
Net Income	$ 48.1	$ 46.3	$ 58.0	$ 56.9