CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Mar. 31, 2020	Sep. 30, 2019	Mar. 31, 2019
ASSETS
Utility Plant	$ 6,369.4	$ 6,146.5	$ 5,856.8
Less: Accumulated depreciation and amortization	1,848.4	1,794.5	1,738.5
Net Utility Plant	4,521.0	4,352.0	4,118.3
Non-utility Property (net of accumulated depreciation and amortization of $17.5, $12.7 and $11.9 at March 31, 2020, September 30, 2019, and March 31, 2019, respectively)	547.4	477.8	329.1
Other Investments	68.1	72.3	68.4
Total Other Property and Investments	615.5	550.1	397.5
Current Assets:
Cash and cash equivalents	108.4	5.8	11.1
Accounts receivable:
Utility	248.2	139.8	318.6
Other	132.8	172.8	196.5
Allowance for doubtful accounts	(28.0)	(23.0)	(28.1)
Delayed customer billings	16.9	4.3	43.8
Inventories:
Natural gas	90.3	162.6	91.3
Propane gas	10.7	10.7	10.7
Materials and supplies	26.1	23.3	24.3
Regulatory assets	68.0	78.6	75.3
Prepayments	27.9	29.1	21.0
Other	17.5	10.5	29.1
Total Current Assets	718.8	614.5	793.6
Deferred Charges and Other Assets:
Goodwill	1,171.6	1,171.6	1,171.6
Regulatory assets	770.7	767.6	659.9
Other	220.4	163.4	132.7
Total Deferred Charges and Other Assets	2,162.7	2,102.6	1,964.2
Total Assets	8,018.0	7,619.2	7,273.6
Capitalization:
Preferred stock ($25.00 par value per share; 10.0 million depositary shares authorized, issued and outstanding at March 31, 2020 and September 30, 2019)	242.0	242.0	0.0
Common stock (par value $1.00 per share; 70.0 million shares authorized; 51.2 million, 51.0 million, and 50.7 million shares issued and outstanding at March 31, 2020, September 30, 2019, and March 31, 2019, respectively)	51.2	51.0	50.7
Paid-in capital and common stock	1,520.7	1,505.8	1,485.6
Retained earnings	902.3	775.5	877.5
Accumulated other comprehensive loss	(50.6)	(31.3)	(7.8)
Total Shareholders' Equity	2,665.6	2,543.0	2,406.0
Temporary equity	3.9	3.4	0.0
Long-term debt (less current portion)	2,484.8	2,082.6	2,041.9
Total Capitalization	5,154.3	4,629.0	4,447.9
Current Liabilities:
Current portion of long-term debt	5.4	40.0	215.0
Notes payable	560.6	743.2	512.0
Accounts payable	221.4	301.5	324.8
Advance customer billings	11.6	32.6	6.5
Wages and compensation accrued	34.0	45.7	32.2
Customer deposits	35.9	35.6	36.7
Taxes accrued	55.1	68.5	50.9
Regulatory liabilities	31.8	60.8	35.3
Other	196.7	140.9	123.3
Total Current Liabilities	1,152.5	1,468.8	1,336.7
Deferred Credits and Other Liabilities:
Deferred income taxes	498.1	451.4	490.2
Pension and postretirement benefit costs	272.1	264.8	178.3
Asset retirement obligations	344.7	337.6	325.5
Regulatory liabilities	472.3	399.0	431.3
Other	124.0	68.6	63.7
Total Deferred Credits and Other Liabilities	1,711.2	1,521.4	1,489.0
Commitments and Contingencies (Note 10)
Total Capitalization and Liabilities	8,018.0	7,619.2	7,273.6
Spire Missouri
ASSETS
Utility Plant	3,790.8	3,643.2	3,460.1
Less: Accumulated depreciation and amortization	795.2	764.1	736.7
Net Utility Plant	2,995.6	2,879.1	2,723.4
Other Investments	53.5	53.3	52.8
Current Assets:
Cash and cash equivalents	5.1	2.6	6.9
Accounts receivable:
Utility	169.2	94.6	231.8
Associated companies	3.7	1.4	2.4
Other	22.4	26.5	18.5
Allowance for doubtful accounts	(20.2)	(14.9)	(21.9)
Delayed customer billings	16.9	4.3	43.8
Inventories:
Natural gas	58.5	100.1	53.1
Propane gas	10.7	10.7	10.7
Materials and supplies	15.6	13.3	14.4
Regulatory assets	29.4	29.4	30.0
Prepayments	15.9	18.2	11.1
Total Current Assets	327.2	286.2	400.8
Deferred Charges and Other Assets:
Goodwill	210.2	210.2	210.2
Regulatory assets	512.1	507.5	433.6
Other	83.4	85.6	53.0
Total Deferred Charges and Other Assets	805.7	803.3	696.8
Total Assets	4,182.0	4,021.9	3,873.8
Capitalization:
Paid-in capital and common stock	765.1	765.1	762.8
Retained earnings	676.5	576.6	612.8
Accumulated other comprehensive loss	(2.5)	(2.4)	(1.6)
Total Shareholders' Equity	1,439.1	1,339.3	1,374.0
Long-term debt (less current portion)	1,098.7	925.0	924.7
Total Capitalization	2,537.8	2,264.3	2,298.7
Current Liabilities:
Current portion of long-term debt	0.0	0.0	50.0
Notes payable	185.1	0.0	0.0
Notes payable – associated companies	39.6	386.4	232.9
Accounts payable	63.8	75.7	72.6
Accounts payable – associated companies	5.2	5.5	8.1
Advance customer billings	5.4	20.8	0.0
Wages and compensation accrued	24.1	34.5	24.5
Customer deposits	13.2	13.4	13.0
Taxes accrued	26.6	36.4	27.2
Regulatory liabilities	24.3	52.3	24.2
Other	32.7	26.4	31.0
Total Current Liabilities	420.0	651.4	483.5
Deferred Credits and Other Liabilities:
Deferred income taxes	390.6	364.6	390.5
Pension and postretirement benefit costs	205.0	192.4	132.7
Asset retirement obligations	177.1	173.5	177.8
Regulatory liabilities	400.4	326.5	345.1
Other	51.1	49.2	45.5
Total Deferred Credits and Other Liabilities	1,224.2	1,106.2	1,091.6
Commitments and Contingencies (Note 10)
Total Capitalization and Liabilities	4,182.0	4,021.9	3,873.8
Spire Alabama
ASSETS
Utility Plant	2,217.0	2,138.0	2,032.5
Less: Accumulated depreciation and amortization	904.7	882.1	852.8
Net Utility Plant	1,312.3	1,255.9	1,179.7
Current Assets:
Cash and cash equivalents	0.1	0.0	0.1
Accounts receivable:
Utility	65.6	37.5	69.8
Associated companies	0.1	0.0	0.1
Other	7.8	8.5	8.4
Allowance for doubtful accounts	(6.8)	(6.3)	(3.8)
Inventories:
Natural gas	16.3	35.1	30.1
Materials and supplies	8.3	7.8	7.8
Regulatory assets	23.3	33.9	30.4
Prepayments	5.7	5.3	3.9
Other	0.3	0.4	0.2
Total Current Assets	120.7	122.2	147.0
Deferred Charges and Other Assets:
Regulatory assets	230.1	231.2	198.9
Deferred income taxes	57.4	81.3	79.3
Other	61.0	53.0	58.9
Total Deferred Charges and Other Assets	348.5	365.5	337.1
Total Assets	1,781.5	1,743.6	1,663.8
Capitalization:
Paid-in capital and common stock	350.9	370.9	370.9
Retained earnings	518.1	459.1	467.8
Total Shareholders' Equity	869.0	830.0	838.7
Long-term debt (less current portion)	471.7	372.2	372.1
Total Capitalization	1,340.7	1,202.2	1,210.8
Current Liabilities:
Current portion of long-term debt	0.0	40.0	40.0
Notes payable	50.0	0.0	0.0
Notes payable – associated companies	33.0	128.7	73.7
Accounts payable	48.0	56.2	54.6
Accounts payable – associated companies	4.8	1.6	3.1
Advance customer billings	5.3	10.6	5.3
Wages and compensation accrued	5.9	8.0	5.3
Customer deposits	19.9	19.5	20.5
Taxes accrued	23.0	27.4	21.2
Regulatory liabilities	2.4	3.4	6.1
Other	9.7	9.2	10.0
Total Current Liabilities	202.0	304.6	239.8
Deferred Credits and Other Liabilities:
Pension and postretirement benefit costs	54.6	59.2	37.4
Asset retirement obligations	151.7	148.7	138.6
Regulatory liabilities	21.6	23.0	30.5
Other	10.9	5.9	6.7
Total Deferred Credits and Other Liabilities	238.8	236.8	213.2
Commitments and Contingencies (Note 10)
Total Capitalization and Liabilities	$ 1,781.5	$ 1,743.6	$ 1,663.8