CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Jun. 30, 2020	Sep. 30, 2019	Jun. 30, 2019
ASSETS
Utility Plant	$ 6,472.2	$ 6,146.5	$ 5,990.6
Less: Accumulated depreciation and amortization	1,882.1	1,794.5	1,770.4
Net Utility Plant	4,590.1	4,352.0	4,220.2
Non-utility Property (net of accumulated depreciation and amortization of $20.8, $12.7 and $11.1 at June 30, 2020, September 30, 2019, and June 30, 2019, respectively)	420.1	477.8	416.6
Other Investments	70.6	72.3	74.8
Total Other Property and Investments	490.7	550.1	491.4
Current Assets:
Cash and cash equivalents	7.4	5.8	5.8
Accounts receivable:
Utility	153.2	139.8	167.2
Other	122.4	172.8	193.2
Allowance for doubtful accounts	(27.5)	(23.0)	(23.7)
Delayed customer billings	10.5	4.3	19.4
Inventories:
Natural gas	110.5	162.6	123.8
Propane gas	10.7	10.7	10.7
Materials and supplies	27.4	23.3	23.7
Regulatory assets	70.2	78.6	79.0
Prepayments	42.2	29.1	39.5
Other	32.3	10.5	11.2
Total Current Assets	559.3	614.5	649.8
Deferred Charges and Other Assets:
Goodwill	1,171.6	1,171.6	1,171.6
Regulatory assets	791.8	767.6	657.1
Other	219.1	163.4	141.9
Total Deferred Charges and Other Assets	2,182.5	2,102.6	1,970.6
Total Assets	7,822.6	7,619.2	7,332.0
Capitalization:
Preferred stock ($25.00 par value per share; 10.0 million depositary shares authorized, issued and outstanding at June 30, 2020, September 30, 2019, and June 30, 2019)	242.0	242.0	242.0
Common stock (par value $1.00 per share; 70.0 million shares authorized; 51.5 million, 51.0 million, and 50.8 million shares issued and outstanding at June 30, 2020, September 30, 2019, and June 30, 2019, respectively)	51.5	51.0	50.8
Paid-in capital and common stock	1,539.9	1,505.8	1,492.7
Retained earnings	774.6	775.5	844.3
Accumulated other comprehensive loss	(49.6)	(31.3)	(17.2)
Total Shareholders' Equity	2,558.4	2,543.0	2,612.6
Temporary equity	4.1	3.4	0.0
Long-term debt (less current portion)	2,478.3	2,082.6	2,042.3
Total Capitalization	5,040.8	4,629.0	4,654.9
Current Liabilities:
Current portion of long-term debt	5.4	40.0	165.0
Notes payable	477.6	743.2	434.0
Accounts payable	200.8	301.5	297.6
Advance customer billings	22.4	32.6	11.6
Wages and compensation accrued	44.3	45.7	43.6
Customer deposits	35.4	35.6	35.7
Taxes accrued	61.0	68.5	56.7
Regulatory liabilities	58.8	60.8	31.3
Other	202.1	140.9	144.1
Total Current Liabilities	1,107.8	1,468.8	1,219.6
Deferred Credits and Other Liabilities:
Deferred income taxes	479.7	451.4	490.4
Pension and postretirement benefit costs	271.9	264.8	172.1
Asset retirement obligations	348.2	337.6	328.9
Regulatory liabilities	449.6	399.0	396.3
Other	124.6	68.6	69.8
Total Deferred Credits and Other Liabilities	1,674.0	1,521.4	1,457.5
Commitments and Contingencies (Note 10)
Total Capitalization and Liabilities	7,822.6	7,619.2	7,332.0
Spire Missouri
ASSETS
Utility Plant	3,865.3	3,643.2	3,545.9
Less: Accumulated depreciation and amortization	817.7	764.1	753.3
Net Utility Plant	3,047.6	2,879.1	2,792.6
Other Investments	55.6	53.3	54.9
Current Assets:
Cash and cash equivalents	0.7	2.6	3.7
Accounts receivable:
Utility	109.6	94.6	115.0
Associated companies	1.1	1.4	4.1
Other	21.6	26.5	22.2
Allowance for doubtful accounts	(19.0)	(14.9)	(16.5)
Delayed customer billings	6.6	4.3	19.4
Inventories:
Natural gas	68.3	100.1	72.5
Propane gas	10.7	10.7	10.7
Materials and supplies	16.2	13.3	13.5
Regulatory assets	29.5	29.4	30.2
Prepayments	27.3	18.2	25.4
Total Current Assets	272.6	286.2	300.2
Deferred Charges and Other Assets:
Goodwill	210.2	210.2	210.2
Regulatory assets	531.9	507.5	429.2
Other	82.2	85.6	53.7
Total Deferred Charges and Other Assets	824.3	803.3	693.1
Total Assets	4,200.1	4,021.9	3,840.8
Capitalization:
Paid-in capital and common stock	765.1	765.1	763.9
Retained earnings	671.7	576.6	613.9
Accumulated other comprehensive loss	(2.4)	(2.4)	(1.5)
Total Shareholders' Equity	1,434.4	1,339.3	1,376.3
Long-term debt (less current portion)	1,091.9	925.0	924.8
Total Capitalization	2,526.3	2,264.3	2,301.1
Current Liabilities:
Notes payable – associated companies	218.3	386.4	281.5
Accounts payable	60.4	75.7	62.3
Accounts payable – associated companies	6.8	5.5	5.0
Advance customer billings	14.4	20.8	3.4
Wages and compensation accrued	30.4	34.5	32.8
Customer deposits	13.1	13.4	12.9
Taxes accrued	30.9	36.4	28.3
Regulatory liabilities	50.8	52.3	23.4
Other	33.5	26.4	32.0
Total Current Liabilities	458.6	651.4	481.6
Deferred Credits and Other Liabilities:
Deferred income taxes	398.6	364.6	395.4
Pension and postretirement benefit costs	206.4	192.4	125.3
Asset retirement obligations	178.9	173.5	179.7
Regulatory liabilities	378.9	326.5	310.5
Other	52.4	49.2	47.2
Total Deferred Credits and Other Liabilities	1,215.2	1,106.2	1,058.1
Commitments and Contingencies (Note 10)
Total Capitalization and Liabilities	4,200.1	4,021.9	3,840.8
Spire Alabama
ASSETS
Utility Plant	2,244.8	2,138.0	2,080.5
Less: Accumulated depreciation and amortization	916.1	882.1	866.9
Net Utility Plant	1,328.7	1,255.9	1,213.6
Accounts receivable:
Utility	36.2	37.5	43.0
Associated companies	0.3	0.0	0.1
Other	8.1	8.5	8.8
Allowance for doubtful accounts	(7.2)	(6.3)	(5.2)
Delayed customer billings	3.9	0.0	0.0
Inventories:
Natural gas	18.8	35.1	30.6
Materials and supplies	8.8	7.8	8.2
Regulatory assets	23.4	33.9	33.9
Prepayments	8.4	5.3	7.4
Other	0.1	0.4	0.0
Total Current Assets	100.8	122.2	126.8
Deferred Charges and Other Assets:
Regulatory assets	232.1	231.2	199.9
Deferred income taxes	56.1	81.3	77.3
Other	61.6	53.0	59.1
Total Deferred Charges and Other Assets	349.8	365.5	336.3
Total Assets	1,779.3	1,743.6	1,676.7
Capitalization:
Paid-in capital and common stock	350.9	370.9	370.9
Retained earnings	515.7	459.1	473.4
Total Shareholders' Equity	866.6	830.0	844.3
Long-term debt (less current portion)	471.8	372.2	372.1
Total Capitalization	1,338.4	1,202.2	1,216.4
Current Liabilities:
Current portion of long-term debt	0.0	40.0	40.0
Notes payable – associated companies	85.6	128.7	79.6
Accounts payable	36.3	56.2	48.0
Accounts payable – associated companies	4.2	1.6	3.4
Advance customer billings	7.2	10.6	6.7
Wages and compensation accrued	7.4	8.0	7.7
Customer deposits	19.4	19.5	19.8
Taxes accrued	26.6	27.4	25.5
Regulatory liabilities	2.5	3.4	3.4
Other	14.0	9.2	11.2
Total Current Liabilities	203.2	304.6	245.3
Deferred Credits and Other Liabilities:
Pension and postretirement benefit costs	53.1	59.2	38.7
Asset retirement obligations	153.3	148.7	140.0
Regulatory liabilities	20.9	23.0	29.8
Other	10.4	5.9	6.5
Total Deferred Credits and Other Liabilities	237.7	236.8	215.0
Commitments and Contingencies (Note 10)
Total Capitalization and Liabilities	$ 1,779.3	$ 1,743.6	$ 1,676.7