CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Operating Revenues:
Gas Utility	$ 679.1	$ 776.7	$ 1,209.7	$ 1,350.5
Gas Marketing and other	36.4	26.8	72.7	55.0
Total Operating Revenues	715.5	803.5	1,282.4	1,405.5
Gas Utility
Natural and propane gas	249.0	337.4	463.6	589.1
Other operation and maintenance expenses	93.1	109.5	199.1	212.0
Depreciation and amortization	47.0	44.4	93.4	88.1
Taxes, other than income taxes	51.7	57.4	89.6	96.6
Total Gas Utility Operating Expenses	440.8	548.7	845.7	985.8
Gas Marketing and other	64.2	45.3	123.9	105.1
Total Operating Expenses	505.0	594.0	969.6	1,090.9
Operating Income	210.5	209.5	312.8	314.6
Interest Expense, Net	27.2	27.6	53.9	53.5
Other (Expense) Income, Net	(19.5)	6.1	(13.8)	8.9
Income Before Income Taxes	163.8	188.0	245.1	270.0
Income Tax Expense	30.2	33.4	44.5	48.1
Net Income	133.6	154.6	200.6	221.9
Provision for preferred dividends	3.7		7.4
Income allocated to participating securities	0.2	0.3	0.3	0.5
Net Income Available to Common Shareholders	$ 129.7	$ 154.3	$ 192.9	$ 221.4
Weighted Average Number of Common Shares Outstanding:
Basic	51.0	50.6	51.0	50.6
Diluted	51.1	50.8	51.1	50.8
Basic Earnings Per Common Share	$ 2.55	$ 3.05	$ 3.78	$ 4.37
Diluted Earnings Per Common Share	$ 2.54	$ 3.04	$ 3.77	$ 4.36
Spire Alabama
Operating Revenues:
Gas Utility	$ 185.5	$ 180.4	$ 311.7	$ 313.9
Total Operating Revenues	185.5	180.4	311.7	313.9
Gas Utility
Natural and propane gas	39.4	41.1	86.4	100.6
Other operation and maintenance expenses	37.1	33.4	72.3	67.8
Depreciation and amortization	14.6	13.7	28.9	27.3
Taxes, other than income taxes	13.2	12.6	22.0	21.5
Total Operating Expenses	104.3	100.8	209.6	217.2
Operating Income	81.2	79.6	102.1	96.7
Interest Expense, Net	5.3	5.4	10.7	10.5
Other (Expense) Income, Net	1.2	1.5	3.4	3.3
Income Before Income Taxes	77.1	75.7	94.8	89.5
Income Tax Expense	19.3	19.0	23.8	22.5
Net Income	$ 57.8	$ 56.7	$ 71.0	$ 67.0