v3.26.1
CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($)
$ in Millions
Mar. 31, 2026
Sep. 30, 2025
Mar. 31, 2025
ASSETS      
Utility Plant $ 11,818.1 $ 9,330.4 $ 9,077.2
Less: Accumulated depreciation and amortization 3,058.0 2,577.4 2,575.1
Net Utility Plant 8,760.1 6,753.0 6,502.1
Non-utility Property (net of accumulated depreciation and amortization of $118.6, $106.6 and $94.6 at March 31, 2026, September 30, 2025, and March 31, 2025, respectively) 557.1 568.1 573.8
Other Investments 127.3 126.6 116.6
Total Other Property and Investments 684.4 694.7 690.4
Current Assets:      
Cash and cash equivalents 49.5 5.7 15.2
Accounts receivable:      
Utility 400.5 191.9 373.4
Other 48.9 47.2 55.1
Allowance for credit losses (33.7) (28.8) (36.8)
Delayed customer billings 51.1 13.6 37.4
Inventories:      
Natural gas 126.6 192.8 110.5
Propane gas 8.6 8.6 8.6
Materials and supplies 46.9 47.0 45.9
Regulatory assets 78.7 78.3 42.3
Prepayments 30.8 46.1 36.5
Other 55.2 22.8 19.0
Assets held for sale 725.3 182.7 200.9
Total Current Assets 1,588.4 807.9 908.0
Deferred Charges and Other Assets:      
Goodwill 1,891.4 1,171.6 1,171.6
Regulatory assets 1,394.1 1,323.5 1,287.2
Other 351.8 378.7 348.2
Assets held for sale 0.0 445.9 439.2
Total Deferred Charges and Other Assets 3,637.3 3,319.7 3,246.2
Total Assets 14,670.2 11,575.3 11,346.7
Capitalization:      
Common stock (par value $1.00 per share; 70.0 million shares authorized; 59.1 million, 59.0 million, and 59.0 million shares issued and outstanding at March 31, 2026, September 30, 2025, and March 31, 2025, respectively) 59.1 59.0 59.0
Paid-in capital 1,984.2 1,981.4 1,977.4
Retained earnings 1,350.0 1,087.6 1,207.6
Accumulated other comprehensive income (loss) 24.5 19.4 22.7
Total Shareholders' Equity 3,417.8 3,389.4 3,508.7
Temporary equity 7.2 6.1 9.3
Long-term debt (less current portion) 5,762.0 3,369.4 3,348.5
Total Capitalization 9,187.0 6,764.9 6,866.5
Current Liabilities:      
Current portion of long-term debt 238.1 487.5 392.5
Notes payable 1,955.0 1,317.0 1,015.0
Accounts payable 185.2 156.3 161.0
Advance customer billings 10.7 58.1 16.1
Wages and compensation accrued 38.4 49.2 37.1
Customer deposits 38.4 32.8 32.2
Taxes accrued 84.4 107.5 80.3
Regulatory liabilities 12.6 39.4 51.6
Other 212.6 176.5 147.3
Liabilities associated with assets held for sale 134.7 124.2 179.3
Total Current Liabilities 2,910.1 2,548.5 2,112.4
Deferred Credits and Other Liabilities:      
Deferred income taxes 984.9 887.4 890.7
Pension and postretirement benefit costs 48.5 74.7 110.8
Asset retirement obligations 590.6 577.7 586.8
Regulatory liabilities 806.0 578.0 637.0
Other 143.1 136.7 134.6
Liabilities associated with assets held for sale 0.0 7.4 7.9
Total Deferred Credits and Other Liabilities 2,573.1 2,261.9 2,367.8
Commitments and Contingencies (Note 13)
Total Capitalization and Liabilities 14,670.2 11,575.3 11,346.7
Depositary Shares [Member]      
Capitalization:      
Preferred stock ($25.00 par value per share; 10.0 million depositary shares authorized, issued and outstanding at September 30, 2025 and March 31, 2025) 0.0 242.0 242.0
Spire Missouri [Member]      
ASSETS      
Utility Plant 6,103.5 5,864.3 5,663.3
Less: Accumulated depreciation and amortization 1,162.9 1,104.6 1,094.0
Net Utility Plant 4,940.6 4,759.7 4,569.3
Total Other Property and Investments 73.2 75.8 71.3
Accounts receivable:      
Other 23.1 34.0 42.9
Allowance for credit losses (25.3) (23.0) (29.6)
Delayed customer billings 48.3 4.2 34.7
Inventories:      
Natural gas 90.3 150.0 80.0
Propane gas 8.6 8.6 8.6
Materials and supplies 24.3 24.5 23.5
Regulatory assets 12.6 48.9 15.5
Prepayments 18.8 28.2 21.9
Other 0.4 0.0 0.0
Total Current Assets 467.7 426.7 468.6
Deferred Charges and Other Assets:      
Goodwill 210.2 210.2 210.2
Regulatory assets 671.4 653.2 613.8
Other 196.9 224.2 194.2
Total Deferred Charges and Other Assets 1,078.5 1,087.6 1,018.2
Total Assets 6,560.0 6,349.8 6,127.4
Capitalization:      
Paid-in capital and common stock 929.3 929.3 929.3
Retained earnings 1,456.6 1,239.1 1,277.1
Accumulated other comprehensive income (loss) (0.6) (0.7) (1.4)
Total Shareholders' Equity 2,385.3 2,167.7 2,205.0
Long-term debt (less current portion) 2,153.1 1,953.6 1,803.8
Total Capitalization 4,538.4 4,121.3 4,008.8
Current Liabilities:      
Advance customer billings 1.2 43.2 8.4
Wages and compensation accrued 22.4 27.0 21.4
Customer deposits 7.0 7.2 6.5
Taxes accrued 49.8 65.8 47.7
Regulatory liabilities 4.6 13.9 12.0
Other 54.6 64.3 45.6
Total Current Liabilities 615.4 908.0 716.3
Deferred Credits and Other Liabilities:      
Deferred income taxes 650.8 598.7 603.1
Pension and postretirement benefit costs 47.0 72.4 89.5
Asset retirement obligations 97.5 95.5 97.6
Regulatory liabilities 537.3 481.3 546.1
Other 73.6 72.6 66.0
Total Deferred Credits and Other Liabilities 1,406.2 1,320.5 1,402.3
Commitments and Contingencies (Note 13)
Total Capitalization and Liabilities 6,560.0 6,349.8 6,127.4
Spire Missouri [Member] | Nonrelated Party [Member]      
Accounts receivable:      
Utility 263.3 149.1 268.2
Current Liabilities:      
Accounts payable 82.6 98.9 104.5
Spire Missouri [Member] | Related Party [Member]      
Accounts receivable:      
Utility 3.3 2.2 2.9
Current Liabilities:      
Notes payable 381.1 566.3 461.3
Accounts payable 12.1 21.4 8.9
Spire Alabama Inc [Member]      
ASSETS      
Utility Plant 3,135.9 3,052.9 3,019.5
Less: Accumulated depreciation and amortization 1,397.8 1,362.4 1,369.2
Net Utility Plant 1,738.1 1,690.5 1,650.3
Total Other Property and Investments 0.1 0.1 0.1
Current Assets:      
Cash and cash equivalents 2.0 1.9 3.3
Accounts receivable:      
Other 6.5 6.9 5.9
Allowance for credit losses (5.6) (4.9) (6.1)
Delayed customer billings 2.6 9.0 2.5
Inventories:      
Natural gas 27.7 39.4 28.5
Materials and supplies 19.3 19.0 18.5
Regulatory assets 18.3 16.1 13.8
Prepayments 2.4 7.7 6.0
Other 0.3 0.0 0.0
Total Current Assets 147.9 129.9 158.1
Deferred Charges and Other Assets:      
Regulatory assets 661.9 650.6 652.5
Other 99.9 99.2 94.9
Total Deferred Charges and Other Assets 761.8 749.8 747.4
Total Assets 2,647.9 2,570.3 2,555.9
Capitalization:      
Paid-in capital and common stock 240.5 242.9 249.4
Retained earnings 784.7 735.2 740.6
Total Shareholders' Equity 1,025.2 978.1 990.0
Long-term debt (less current portion) 711.9 711.7 711.5
Total Capitalization 1,737.1 1,689.8 1,701.5
Current Liabilities:      
Current portion of long-term debt 0.0 0.0 35.0
Advance customer billings 7.2 13.1 6.5
Wages and compensation accrued 6.4 7.8 6.1
Customer deposits 23.8 22.3 22.4
Taxes accrued 26.3 33.1 27.1
Regulatory liabilities 2.2 20.3 33.9
Other 17.7 14.6 14.2
Total Current Liabilities 281.6 290.0 247.2
Deferred Credits and Other Liabilities:      
Deferred income taxes 94.7 64.1 64.4
Pension and postretirement benefit costs 1.4 2.4 12.4
Asset retirement obligations 480.2 470.0 478.7
Regulatory liabilities 28.4 29.2 26.4
Other 24.5 24.8 25.3
Total Deferred Credits and Other Liabilities 629.2 590.5 607.2
Total Capitalization and Liabilities 2,647.9 2,570.3 2,555.9
Spire Alabama Inc [Member] | Nonrelated Party [Member]      
Accounts receivable:      
Utility 74.4 34.8 85.7
Current Liabilities:      
Accounts payable 38.9 43.3 49.9
Spire Alabama Inc [Member] | Related Party [Member]      
Current Liabilities:      
Notes payable 149.8 130.1 41.8
Accounts payable $ 9.3 $ 5.4 $ 10.3