CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Operating Revenues:
Gas Utility	$ 790.6	$ 641.1	$ 1,332.5	$ 1,113.4
Gas Marketing and other	22.8	22.3	42.7	45.1
Total Operating Revenues	813.4	663.4	1,375.2	1,158.5
Gas Utility
Natural and propane gas	383.7	254.3	624.5	448.1
Operation and maintenance	143.6	98.4	241.5	197.8
Depreciation and amortization	41.1	37.9	81.4	75.6
Taxes, other than income taxes	58.0	48.3	94.7	81.7
Total Gas Utility Operating Expenses	626.4	438.9	1,042.1	803.2
Gas Marketing and other	45.2	44.1	86.2	85.8
Total Operating Expenses	671.6	483.0	1,128.3	889.0
Operating Income	141.8	180.4	246.9	269.5
Other Income - Net	0.7	3.6	2.9	4.1
Interest Charges:
Interest on long-term debt	21.0	19.2	41.7	38.3
Other interest charges	4.4	3.5	8.1	6.5
Total Interest Charges	25.4	22.7	49.8	44.8
Income Before Income Taxes	117.1	161.3	200.0	228.8
Income Tax Expense (Benefit)	18.9	53.3	(14.2)	75.6
Net Income	$ 98.2	$ 108.0	$ 214.2	$ 153.2
Weighted Average Number of Shares Outstanding:
Basic (in shares)	48.2	45.6	48.2	45.6
Diluted (in shares)	48.4	45.7	48.4	45.7
Basic Earnings Per Share (in dollars per share)	$ 2.03	$ 2.36	$ 4.43	$ 3.35
Diluted Earnings Per Share (in dollars per share)	2.03	2.36	4.42	3.34
Dividends Declared Per Share (in dollars per share)	$ 0.5625	$ 0.525	$ 1.125	$ 1.05
Spire Missouri
Operating Revenues:
Gas Utility	$ 533.2	$ 447.2	$ 925.5	$ 810.8
Total Operating Revenues	533.2	447.2	925.5	810.8
Gas Utility
Natural and propane gas	311.2	241.2	517.4	432.5
Operation and maintenance	103.5	57.5	163.8	118.0
Depreciation and amortization	25.2	23.0	50.0	45.7
Taxes, other than income taxes	41.2	35.3	67.4	59.9
Total Operating Expenses	481.1	357.0	798.6	656.1
Operating Income	52.1	90.2	126.9	154.7
Other Income - Net	(0.4)	1.9	0.8	2.0
Interest Charges:
Interest on long-term debt	9.8	8.2	19.7	16.5
Other interest charges	2.1	1.5	3.8	2.9
Total Interest Charges	11.9	9.7	23.5	19.4
Income Before Income Taxes	39.8	82.4	104.2	137.3
Income Tax Expense (Benefit)	1.4	25.4	(23.6)	42.3
Net Income	38.4	57.0	127.8	95.0
Spire Alabama
Operating Revenues:
Gas Utility	218.3	158.8	339.1	245.5
Total Operating Revenues	218.3	158.8	339.1	245.5
Gas Utility
Natural and propane gas	78.5	25.8	127.5	42.6
Operation and maintenance	34.1	31.5	65.9	62.7
Depreciation and amortization	13.1	12.3	25.9	24.6
Taxes, other than income taxes	14.4	10.3	22.6	16.9
Total Operating Expenses	140.1	79.9	241.9	146.8
Operating Income	78.2	78.9	97.2	98.7
Other Income - Net	0.5	1.1	0.9	1.5
Interest Charges:
Interest on long-term debt	3.5	2.8	6.4	5.6
Other interest charges	0.9	0.7	2.0	1.5
Total Interest Charges	4.4	3.5	8.4	7.1
Income Before Income Taxes	74.3	76.5	89.7	93.1
Income Tax Expense (Benefit)	18.7	28.9	83.7	35.2
Net Income	$ 55.6	$ 47.6	$ 6.0	$ 57.9