CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2020	Sep. 30, 2019
ASSETS
Utility Plant	$ 6,766.3	$ 6,146.5
Less: Accumulated depreciation and amortization	2,086.2	1,794.5
Net Utility Plant	4,680.1	4,352.0
Non-utility Property (net of accumulated depreciation and amortization of $19.0 and $12.7 at September 30, 2020 and 2019, respectively)	432.3	477.8
Other Investments	71.7	72.3
Total Other Property and Investments	504.0	550.1
Current Assets:
Cash and cash equivalents	4.1	5.8
Accounts receivable:
Utility	131.8	139.8
Other	146.4	172.8
Allowance for doubtful accounts	(24.9)	(23.0)
Delayed customer billings	10.0	4.3
Inventories:
Natural gas	154.3	162.6
Propane gas	10.7	10.7
Materials and supplies	26.5	23.3
Regulatory assets	69.5	78.6
Prepayments	29.2	29.1
Other	33.0	10.5
Total Current Assets	590.6	614.5
Deferred Charges and Other Assets:
Goodwill	1,171.6	1,171.6
Regulatory assets	1,069.4	767.6
Other	225.5	163.4
Total Deferred Charges and Other Assets	2,466.5	2,102.6
Total Assets	8,241.2	7,619.2
Capitalization:
Preferred stock ($25.00 par value per share; 10.0 million depositary shares authorized, issued and outstanding at September 30, 2020 and 2019)	242.0	242.0
Common stock (par value $1.00 per share; 70.0 million shares authorized; 51.6 million issued and outstanding at September 30, 2020, and 51.0 million shares issued and outstanding September 30, 2019)	51.6	51.0
Paid-in capital and common stock	1,549.2	1,505.8
Retained earnings	720.7	775.5
Accumulated other comprehensive loss	(41.2)	(31.3)
Total Shareholders' Equity	2,522.3	2,543.0
Temporary equity	3.4	3.4
Long-term debt (less current portion)	2,423.7	2,082.6
Total Capitalization	4,949.4	4,629.0
Current Liabilities:
Current portion of long-term debt	60.4	40.0
Notes payable	648.0	743.2
Accounts payable	243.3	301.5
Advance customer billings	45.3	32.6
Wages and compensation accrued	46.3	45.7
Customer deposits	30.6	35.6
Taxes accrued	71.4	68.5
Regulatory liabilities	113.0	60.8
Other	190.9	140.9
Total Current Liabilities	1,449.2	1,468.8
Deferred Credits and Other Liabilities:
Deferred income taxes	511.4	451.4
Pension and postretirement benefit costs	309.0	264.8
Asset retirement obligations	540.1	337.6
Regulatory liabilities	343.7	399.0
Other	138.4	68.6
Total Deferred Credits and Other Liabilities	1,842.6	1,521.4
Commitments and Contingencies (Note 16)
Total Capitalization and Liabilities	8,241.2	7,619.2
Spire Missouri
ASSETS
Utility Plant	3,931.2	3,643.2
Less: Accumulated depreciation and amortization	825.7	764.1
Net Utility Plant	3,105.5	2,879.1
Other Investments	56.7	53.3
Current Assets:
Cash and cash equivalents	0.0	2.6
Accounts receivable:
Utility	92.5	94.6
Associated companies	2.7	1.4
Other	34.1	26.5
Allowance for doubtful accounts	(18.1)	(14.9)
Delayed customer billings	2.4	4.3
Inventories:
Natural gas	95.1	100.1
Propane gas	10.7	10.7
Materials and supplies	15.6	13.3
Regulatory assets	32.1	29.4
Prepayments	20.7	18.2
Total Current Assets	287.8	286.2
Deferred Charges and Other Assets:
Goodwill	210.2	210.2
Regulatory assets	548.7	507.5
Other	96.0	85.6
Total Deferred Charges and Other Assets	854.9	803.3
Total Assets	4,304.9	4,021.9
Capitalization:
Common stock (par value $1.00 per share; 70.0 million shares authorized; 51.6 million issued and outstanding at September 30, 2020, and 51.0 million shares issued and outstanding September 30, 2019)	0.1	0.1
Paid-in capital and common stock	765.0	765.0
Retained earnings	672.9	576.6
Accumulated other comprehensive loss	(2.9)	(2.4)
Total Shareholders' Equity	1,435.1	1,339.3
Long-term debt (less current portion)	1,092.0	925.0
Total Capitalization	2,527.1	2,264.3
Current Liabilities:
Notes payable – associated companies	301.2	386.4
Accounts payable	66.7	75.7
Accounts payable – associated companies	9.3	5.5
Advance customer billings	32.7	20.8
Wages and compensation accrued	33.3	34.5
Customer deposits	9.3	13.4
Taxes accrued	39.1	36.4
Regulatory liabilities	103.2	52.3
Other	39.9	26.4
Total Current Liabilities	634.7	651.4
Deferred Credits and Other Liabilities:
Deferred income taxes	434.7	364.6
Pension and postretirement benefit costs	217.2	192.4
Asset retirement obligations	153.4	173.5
Regulatory liabilities	274.8	326.5
Other	63.0	49.2
Total Deferred Credits and Other Liabilities	1,143.1	1,106.2
Commitments and Contingencies (Note 16)
Total Capitalization and Liabilities	4,304.9	4,021.9
Spire Alabama
ASSETS
Utility Plant	2,469.9	2,138.0
Less: Accumulated depreciation and amortization	1,117.0	882.1
Net Utility Plant	1,352.9	1,255.9
Accounts receivable:
Utility	31.4	37.5
Associated companies	0.6	0.0
Other	5.8	8.5
Allowance for doubtful accounts	(5.5)	(6.3)
Delayed customer billings	7.5	0.0
Inventories:
Natural gas	22.5	35.1
Materials and supplies	8.4	7.8
Regulatory assets	20.4	33.9
Prepayments	4.3	5.3
Other	0.2	0.4
Total Current Assets	95.6	122.2
Deferred Charges and Other Assets:
Regulatory assets	489.9	231.2
Deferred income taxes	59.3	81.3
Other	53.7	53.0
Total Deferred Charges and Other Assets	602.9	365.5
Total Assets	2,051.4	1,743.6
Capitalization:
Paid-in capital and common stock	350.9	370.9
Retained earnings	500.8	459.1
Total Shareholders' Equity	851.7	830.0
Long-term debt (less current portion)	471.8	372.2
Total Capitalization	1,323.5	1,202.2
Current Liabilities:
Current portion of long-term debt	0.0	40.0
Notes payable – associated companies	121.3	128.7
Accounts payable	43.7	56.2
Accounts payable – associated companies	4.2	1.6
Advance customer billings	11.5	10.6
Wages and compensation accrued	8.0	8.0
Customer deposits	18.7	19.5
Taxes accrued	28.0	27.4
Regulatory liabilities	3.9	3.4
Other	11.8	9.2
Total Current Liabilities	251.1	304.6
Deferred Credits and Other Liabilities:
Pension and postretirement benefit costs	74.9	59.2
Asset retirement obligations	374.3	148.7
Regulatory liabilities	18.5	23.0
Other	9.1	5.9
Total Deferred Credits and Other Liabilities	476.8	236.8
Commitments and Contingencies (Note 16)
Total Capitalization and Liabilities	$ 2,051.4	$ 1,743.6