CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2021	Sep. 30, 2020
ASSETS
Utility Plant	$ 7,225.0	$ 6,766.3
Less: Accumulated depreciation and amortization	2,169.3	2,086.2
Net Utility Plant	5,055.7	4,680.1
Non-utility Property (net of accumulated depreciation and amortization of $32.1 and $19.0 at September 30, 2021 and 2020, respectively)	471.1	432.3
Other Investments	83.1	71.7
Total Other Property and Investments	554.2	504.0
Current Assets:
Cash and cash equivalents	4.3	4.1
Accounts receivable:
Utility	338.4	131.8
Other	288.2	146.4
Allowance for credit losses	(30.3)	(24.9)
Delayed customer billings	9.2	10.0
Inventories:
Natural gas	267.7	154.3
Propane gas	8.7	10.7
Materials and supplies	28.6	26.5
Regulatory assets	306.5	69.5
Prepayments	29.0	29.2
Other	66.2	33.0
Total Current Assets	1,316.5	590.6
Deferred Charges and Other Assets:
Goodwill	1,171.6	1,171.6
Regulatory assets	993.5	1,069.4
Other	264.9	225.5
Total Deferred Charges and Other Assets	2,430.0	2,466.5
Total Assets	9,356.4	8,241.2
Capitalization:
Preferred stock ($25.00 par value per share; 10.0 million depositary shares authorized, issued and outstanding at September 30, 2021 and 2020)	242.0	242.0
Common stock	51.7	51.6
Paid-in capital and common stock	1,517.9	1,549.2
Retained earnings	843.0	720.7
Accumulated other comprehensive income (loss)	3.6	(41.2)
Total Shareholders' Equity	2,658.2	2,522.3
Temporary equity	9.8	3.4
Long-term debt (less current portion)	2,939.1	2,423.7
Total Capitalization	5,607.1	4,949.4
Current Liabilities:
Current portion of long-term debt	55.8	60.4
Notes payable	672.0	648.0
Accounts payable	409.9	243.3
Advance customer billings	32.1	45.3
Wages and compensation accrued	59.5	46.3
Customer deposits	28.9	30.6
Taxes accrued	78.8	71.4
Regulatory liabilities	34.6	113.0
Other	236.7	190.9
Total Current Liabilities	1,608.3	1,449.2
Deferred Credits and Other Liabilities:
Deferred income taxes	612.3	511.4
Pension and postretirement benefit costs	235.9	309.0
Asset retirement obligations	519.6	540.1
Regulatory liabilities	620.9	343.7
Other	152.3	138.4
Total Deferred Credits and Other Liabilities	2,141.0	1,842.6
Commitments and Contingencies (Note 16)
Total Capitalization and Liabilities	9,356.4	8,241.2
Spire Missouri
ASSETS
Utility Plant	4,266.6	3,931.2
Less: Accumulated depreciation and amortization	905.1	825.7
Net Utility Plant	3,361.5	3,105.5
Other Investments	60.2	56.7
Accounts receivable:
Utility	279.0	92.5
Associated companies	4.7	2.7
Other	57.5	34.1
Allowance for credit losses	(22.6)	(18.1)
Delayed customer billings	2.4	2.4
Inventories:
Natural gas	176.7	95.1
Propane gas	8.7	10.7
Materials and supplies	15.0	15.6
Regulatory assets	276.3	32.1
Prepayments	19.7	20.7
Other	0.1	0.0
Total Current Assets	817.5	287.8
Deferred Charges and Other Assets:
Goodwill	210.2	210.2
Regulatory assets	483.1	548.7
Other	125.6	96.0
Total Deferred Charges and Other Assets	818.9	854.9
Total Assets	5,058.1	4,304.9
Capitalization:
Common stock	0.1	0.1
Paid-in capital and common stock	765.0	765.0
Retained earnings	817.0	672.9
Accumulated other comprehensive income (loss)	(4.2)	(2.9)
Total Shareholders' Equity	1,577.9	1,435.1
Long-term debt (less current portion)	1,338.4	1,092.0
Total Capitalization	2,916.3	2,527.1
Current Liabilities:
Notes payable	250.0	0.0
Notes payable ? associated companies	240.9	301.2
Accounts payable	89.7	66.7
Accounts payable ? associated companies	10.2	9.3
Advance customer billings	19.7	32.7
Wages and compensation accrued	40.3	33.3
Customer deposits	8.0	9.3
Taxes accrued	41.2	39.1
Regulatory liabilities	17.1	103.2
Other	47.4	39.9
Total Current Liabilities	764.5	634.7
Deferred Credits and Other Liabilities:
Deferred income taxes	480.0	434.7
Pension and postretirement benefit costs	159.5	217.2
Asset retirement obligations	143.4	153.4
Regulatory liabilities	538.8	274.8
Other	55.6	63.0
Total Deferred Credits and Other Liabilities	1,377.3	1,143.1
Commitments and Contingencies (Note 16)
Total Capitalization and Liabilities	5,058.1	4,304.9
Spire Alabama
ASSETS
Utility Plant	2,586.5	2,469.9
Less: Accumulated depreciation and amortization	1,124.8	1,117.0
Net Utility Plant	1,461.7	1,352.9
Accounts receivable:
Utility	49.8	31.4
Associated companies	0.6	0.6
Other	6.4	5.8
Allowance for credit losses	(6.6)	(5.5)
Delayed customer billings	6.7	7.5
Inventories:
Natural gas	35.5	22.5
Materials and supplies	10.8	8.4
Regulatory assets	18.8	20.4
Prepayments	5.4	4.3
Other	0.0	0.2
Total Current Assets	127.4	95.6
Deferred Charges and Other Assets:
Regulatory assets	483.3	489.9
Deferred income taxes	34.2	59.3
Other	63.9	53.7
Total Deferred Charges and Other Assets	581.4	602.9
Total Assets	2,170.5	2,051.4
Capitalization:
Paid-in capital and common stock	328.9	350.9
Retained earnings	552.6	500.8
Total Shareholders' Equity	881.5	851.7
Long-term debt (less current portion)	571.2	471.8
Total Capitalization	1,452.7	1,323.5
Current Liabilities:
Current portion of long-term debt	50.0	0.0
Notes payable ? associated companies	49.0	121.3
Accounts payable	52.3	43.7
Accounts payable ? associated companies	6.0	4.2
Advance customer billings	11.2	11.5
Wages and compensation accrued	9.3	8.0
Customer deposits	18.4	18.7
Taxes accrued	30.4	28.0
Regulatory liabilities	13.4	3.9
Other	17.3	11.8
Total Current Liabilities	257.3	251.1
Deferred Credits and Other Liabilities:
Pension and postretirement benefit costs	66.7	74.9
Asset retirement obligations	362.8	374.3
Regulatory liabilities	23.4	18.5
Other	7.6	9.1
Total Deferred Credits and Other Liabilities	460.5	476.8
Commitments and Contingencies (Note 16)
Total Capitalization and Liabilities	$ 2,170.5	$ 2,051.4