v3.26.1
CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($)
$ in Millions
Total
Common Stock [Member]
Preferred Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
AOCI Attributable to Parent [Member]
 [1]
Spire Missouri [Member]
Spire Missouri [Member]
Common Stock [Member]
Spire Missouri [Member]
Additional Paid-in Capital [Member]
Spire Missouri [Member]
Retained Earnings [Member]
Spire Missouri [Member]
AOCI Attributable to Parent [Member]
 [2]
Spire Alabama Inc [Member]
Spire Alabama Inc [Member]
Common Stock [Member]
Spire Alabama Inc [Member]
Additional Paid-in Capital [Member]
Spire Alabama Inc [Member]
Retained Earnings [Member]
Balance (in shares) at Sep. 30, 2024   57,749,667           25,855         1,972,052    
Balance at Sep. 30, 2024 $ 3,232.7 $ 57.7 $ 242.0 $ 1,902.2 $ 1,018.7 $ 12.1 $ 1,963.7 $ 0.1 $ 854.8 $ 1,110.8 $ (2.0) $ 948.3   $ 279.4 $ 668.9
Net Income 311.5       311.5   153.3     153.3   90.2     90.2
Common stock issued (in shares)   1,206,134           967              
Common stock issued 74.8 $ 1.2   73.6     74.4   74.4            
Dividend reinvestment plan (in shares)   17,039                          
Dividend reinvestment plan 1.2     1.2                      
Stock-based compensation costs 4.2     4.2                      
Stock activity under stock-based compensation plans (in shares)   72,801                          
Stock activity under stock-based compensation plans   $ 0.1   (0.1)                      
Employees’ tax withholding for stock-based compensation (in shares)   (25,317)                          
Employees’ tax withholding for stock-based compensation (1.9)     (1.9)                      
Temporary equity adjustment to redemption value (1.1)       (1.1)                    
Return of capital to Spire                       (36.5)   (36.5)  
Common stock, dividends (138.5)       (138.5)             (14.0)     (14.0)
Preferred stock, dividends (11.1)       (11.1)                    
Other comprehensive income (loss), net of tax 8.4         8.4 0.7       0.7        
Balance (in shares) at Jun. 30, 2025   59,020,324           26,822         1,972,052    
Balance at Jun. 30, 2025 3,480.2 $ 59.0 242.0 1,979.2 1,179.5 20.5 2,192.1 $ 0.1 929.2 1,264.1 (1.3) 988.0   242.9 745.1
Balance (in shares) at Mar. 31, 2025   59,014,597           26,822         1,972,052    
Balance at Mar. 31, 2025 3,508.7 $ 59.0 242.0 1,977.4 1,207.6 22.7 2,205.0 $ 0.1 929.2 1,277.1 (1.4) 990.0   249.4 740.6
Net Income 20.9       20.9   (13.0)     (13.0)   4.5     4.5
Dividend reinvestment plan (in shares)   5,073                          
Dividend reinvestment plan 0.4     0.4                      
Stock-based compensation costs 1.4     1.4                      
Stock activity under stock-based compensation plans (in shares)   708                          
Employees’ tax withholding for stock-based compensation (in shares)   (54)                          
Temporary equity adjustment to redemption value 1.2       1.2                    
Return of capital to Spire                       (6.5)   (6.5)  
Common stock, dividends (46.5)       (46.5)                    
Preferred stock, dividends (3.7)       (3.7)                    
Other comprehensive income (loss), net of tax (2.2)         (2.2) 0.1       0.1        
Balance (in shares) at Jun. 30, 2025   59,020,324           26,822         1,972,052    
Balance at Jun. 30, 2025 3,480.2 $ 59.0 242.0 1,979.2 1,179.5 20.5 2,192.1 $ 0.1 929.2 1,264.1 (1.3) 988.0   242.9 745.1
Balance (in shares) at Sep. 30, 2025   59,025,961           26,822         1,972,052    
Balance at Sep. 30, 2025 3,389.4 $ 59.0 242.0 1,981.4 1,087.6 19.4 2,167.7 $ 0.1 929.2 1,239.1 (0.7) 978.1   242.9 735.2
Net Income 588.4       588.4   215.2     215.2   98.9     98.9
Dividend reinvestment plan (in shares)   13,122                          
Dividend reinvestment plan 0.8     0.8                      
Stock-based compensation costs 4.8     4.8                      
Stock activity under stock-based compensation plans (in shares)   93,456                          
Stock activity under stock-based compensation plans   $ 0.1   (0.1)                      
Employees’ tax withholding for stock-based compensation (in shares)   (24,768)                          
Employees’ tax withholding for stock-based compensation (2.0)     (2.0)                      
Temporary equity adjustment to redemption value (2.1)       (2.1)                    
Redemption of preferred shares (242.0)   $ (242.0)                        
Return of capital to Spire                       (6.6)   (6.6)  
Preferred share redemption cost (8.0)       (8.0)                    
Common stock, dividends (146.3)       (146.3)   (29.9)     (29.9)   (43.8)     (43.8)
Preferred stock, dividends (3.7)       (3.7)                    
Other comprehensive income (loss), net of tax 3.7         3.7 0.1       0.1        
Balance (in shares) at Jun. 30, 2026   59,107,771           26,822         1,972,052    
Balance at Jun. 30, 2026 3,583.0 $ 59.1   1,984.9 1,515.9 23.1 2,353.1 $ 0.1 929.2 1,424.4 (0.6) 1,026.6   236.3 790.3
Balance (in shares) at Mar. 31, 2026   59,109,817           26,822         1,972,052    
Balance at Mar. 31, 2026 3,417.8 $ 59.1   1,984.2 1,350.0 24.5 2,385.3 $ 0.1 929.2 1,456.6 (0.6) 1,025.2   240.5 784.7
Net Income 211.2       211.2   (12.2)     (12.2)   7.3     7.3
Dividend reinvestment plan (in shares)   4,245                          
Dividend reinvestment plan 0.3     0.3                      
Stock-based compensation costs 0.4     0.4                      
Stock activity under stock-based compensation plans (in shares)   (5,395)                          
Employees’ tax withholding for stock-based compensation (in shares)   (896)                          
Temporary equity adjustment to redemption value 1.7       1.7                    
Return of capital to Spire                       (4.2)   (4.2)  
Common stock, dividends (47.0)       (47.0)   (20.0)     (20.0)   (1.7)     (1.7)
Other comprehensive income (loss), net of tax (1.4)         (1.4) 0.0                
Balance (in shares) at Jun. 30, 2026   59,107,771           26,822         1,972,052    
Balance at Jun. 30, 2026 $ 3,583.0 $ 59.1   $ 1,984.9 $ 1,515.9 $ 23.1 $ 2,353.1 $ 0.1 $ 929.2 $ 1,424.4 $ (0.6) $ 1,026.6   $ 236.3 $ 790.3
[1] Accumulated other comprehensive income (loss)
[2] Accumulated other comprehensive income (loss)