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v3.21.1

Information by Operating Segment (Tables) | 6 Months Ended
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Mar. 31, 2021
Segment Reporting [Abstract] |
Schedule of Operating Segment Information |
|  | Gas Utility |  |  | Gas Marketing |  |  | Other |  |  | Eliminations |  |  | Consolidated |
Three Months Ended March 31, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  | $ | 1,053.0 |  |  | $ | 47.4 |  |  | $ | 4.5 |  |  | $ | — |  |  | $ | 1,104.9 |
Intersegment revenues |  |  | 0.1 |  |  |  | (14.0 | ) |  |  | 11.1 |  |  |  | 2.8 |  |  |  | — |
Total Operating Revenues |  |  | 1,053.1 |  |  |  | 33.4 |  |  |  | 15.6 |  |  |  | 2.8 |  |  |  | 1,104.9 |
Operating Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Natural gas |  |  | 619.2 |  |  |  | (6.2 | ) |  |  | 0.1 |  |  |  | 6.0 |  |  |  | 619.1 |
Operation and maintenance |  |  | 104.0 |  |  |  | 7.1 |  |  |  | 11.1 |  |  |  | (3.2 | ) |  |  | 119.0 |
Depreciation and amortization |  |  | 49.5 |  |  |  | 0.3 |  |  |  | 1.7 |  |  |  | — |  |  |  | 51.5 |
Taxes, other than income taxes |  |  | 56.4 |  |  |  | 0.5 |  |  |  | 1.0 |  |  |  | — |  |  |  | 57.9 |
Total Operating Expenses |  |  | 829.1 |  |  |  | 1.7 |  |  |  | 13.9 |  |  |  | 2.8 |  |  |  | 847.5 |
Operating Income |  | $ | 224.0 |  |  | $ | 31.7 |  |  | $ | 1.7 |  |  | $ | — |  |  | $ | 257.4 |
Net Economic Earnings (Loss) |  | $ | 159.7 |  |  | $ | 39.8 |  |  | $ | (3.9 | ) |  | $ | — |  |  | $ | 195.6 |
|  | Gas Utility |  |  | Gas Marketing |  |  | Other |  |  | Eliminations |  |  | Consolidated |
Three Months Ended March 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  | $ | 679.1 |  |  | $ | 33.3 |  |  | $ | 3.1 |  |  | $ | — |  |  | $ | 715.5 |
Intersegment revenues |  |  | (0.1 | ) |  |  | — |  |  |  | 11.6 |  |  |  | (11.5 | ) |  |  | — |
Total Operating Revenues |  |  | 679.0 |  |  |  | 33.3 |  |  |  | 14.7 |  |  |  | (11.5 | ) |  |  | 715.5 |
Operating Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Natural gas |  |  | 271.6 |  |  |  | 33.6 |  |  |  | 0.1 |  |  |  | (8.2 | ) |  |  | 297.1 |
Operation and maintenance |  |  | 95.8 |  |  |  | 3.6 |  |  |  | 9.6 |  |  |  | (3.3 | ) |  |  | 105.7 |
Depreciation and amortization |  |  | 47.0 |  |  |  | 0.1 |  |  |  | 2.1 |  |  |  | — |  |  |  | 49.2 |
Taxes, other than income taxes |  |  | 51.7 |  |  |  | 0.4 |  |  |  | 0.9 |  |  |  | — |  |  |  | 53.0 |
Total Operating Expenses |  |  | 466.1 |  |  |  | 37.7 |  |  |  | 12.7 |  |  |  | (11.5 | ) |  |  | 505.0 |
Operating Income |  | $ | 212.9 |  |  | $ | (4.4 | ) |  | $ | 2.0 |  |  | $ | — |  |  | $ | 210.5 |
Net Economic Earnings (Loss) |  | $ | 144.3 |  |  | $ | 5.1 |  |  | $ | (5.4 | ) |  | $ | — |  |  | $ | 144.0 |
|  | Gas Utility |  |  | Gas Marketing |  |  | Other |  |  | Eliminations |  |  | Consolidated |
Six Months Ended March 31, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  | $ | 1,550.2 |  |  | $ | 58.1 |  |  | $ | 9.2 |  |  | $ | — |  |  | $ | 1,617.5 |
Intersegment revenues |  |  | 1.1 |  |  |  | 0.1 |  |  |  | 23.1 |  |  |  | (24.3 | ) |  |  | — |
Total Operating Revenues |  |  | 1,551.3 |  |  |  | 58.2 |  |  |  | 32.3 |  |  |  | (24.3 | ) |  |  | 1,617.5 |
Operating Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Natural gas |  |  | 823.5 |  |  |  | (5.5 | ) |  |  | 0.1 |  |  |  | (17.8 | ) |  |  | 800.3 |
Operation and maintenance |  |  | 207.0 |  |  |  | 10.4 |  |  |  | 19.7 |  |  |  | (6.5 | ) |  |  | 230.6 |
Depreciation and amortization |  |  | 98.1 |  |  |  | 0.6 |  |  |  | 3.6 |  |  |  | — |  |  |  | 102.3 |
Taxes, other than income taxes |  |  | 91.9 |  |  |  | 0.7 |  |  |  | 1.4 |  |  |  | — |  |  |  | 94.0 |
Total Operating Expenses |  |  | 1,220.5 |  |  |  | 6.2 |  |  |  | 24.8 |  |  |  | (24.3 | ) |  |  | 1,227.2 |
Operating Income |  | $ | 330.8 |  |  | $ | 52.0 |  |  | $ | 7.5 |  |  | $ | — |  |  | $ | 390.3 |
Net Economic Earnings (Loss) |  | $ | 236.1 |  |  | $ | 43.1 |  |  | $ | (6.7 | ) |  | $ | — |  |  | $ | 272.5 |
|  | Gas Utility |  |  | Gas Marketing |  |  | Other |  |  | Eliminations |  |  | Consolidated |
Six Months Ended March 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues from external customers |  | $ | 1,209.7 |  |  | $ | 65.6 |  |  | $ | 7.1 |  |  | $ | — |  |  | $ | 1,282.4 |
Intersegment revenues |  |  | — |  |  |  | — |  |  |  | 18.7 |  |  |  | (18.7 | ) |  |  | — |
Total Operating Revenues |  |  | 1,209.7 |  |  |  | 65.6 |  |  |  | 25.8 |  |  |  | (18.7 | ) |  |  | 1,282.4 |
Operating Expenses: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Natural gas |  |  | 513.1 |  |  |  | 58.1 |  |  |  | 0.2 |  |  |  | (12.4 | ) |  |  | 559.0 |
Operation and maintenance |  |  | 204.4 |  |  |  | 6.7 |  |  |  | 17.5 |  |  |  | (6.3 | ) |  |  | 222.3 |
Depreciation and amortization |  |  | 93.4 |  |  |  | 0.1 |  |  |  | 3.2 |  |  |  | — |  |  |  | 96.7 |
Taxes, other than income taxes |  |  | 89.6 |  |  |  | 0.7 |  |  |  | 1.3 |  |  |  | — |  |  |  | 91.6 |
Total Operating Expenses |  |  | 900.5 |  |  |  | 65.6 |  |  |  | 22.2 |  |  |  | (18.7 | ) |  |  | 969.6 |
Operating Income |  | $ | 309.2 |  |  | $ | — |  |  | $ | 3.6 |  |  | $ | — |  |  | $ | 312.8 |
Net Economic Earnings (Loss) |  | $ | 213.4 |  |  | $ | 11.2 |  |  | $ | (8.8 | ) |  | $ | — |  |  | $ | 215.8 |
|  | March 31, |  |  | September 30, |  |  | March 31, |
|  | 2021 |  |  | 2020 |  |  | 2020 |
Total Assets: |  |  |
Gas Utility |  | $ | 7,265.0 |  |  | $ | 6,716.2 |  |  | $ | 6,311.6 |
Gas Marketing |  |  | 341.0 |  |  |  | 182.7 |  |  |  | 159.3 |
Other |  |  | 2,513.7 |  |  |  | 2,443.5 |  |  |  | 2,214.7 |
Eliminations |  |  | (1,182.9 | ) |  |  | (1,101.2 | ) |  |  | (667.6 | )
Total Assets |  | $ | 8,936.8 |  |  | $ | 8,241.2 |  |  | $ | 8,018.0 |
Schedule of Reconciliation of Consolidated Net Economic Earnings to Consolidated Net Income | The following table reconciles the Company’s net economic earnings to net income. For information about the Missouri regulatory adjustment for $9.0 of pension costs in fiscal 2021 and the provision for ISRS rulings in fiscal 2020, see Note 4, Regulatory Matters.
|  | Three Months Ended March 31, |  |  | Six Months Ended March 31, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Net Income |  | $ | 187.4 |  |  | $ | 133.6 |  |  | $ | 276.3 |  |  | $ | 200.6 |
Adjustments, pre-tax: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Missouri regulatory adjustment |  |  | (9.0 | ) |  |  | — |  |  |  | (9.0 | ) |  |  | — |
Provision for ISRS rulings |  |  | — |  |  |  | 2.2 |  |  |  | — |  |  |  | 4.8 |
Fair value and timing adjustments |  |  | 20.1 |  |  |  | 11.6 |  |  |  | 4.1 |  |  |  | 15.3 |
Income tax effect of adjustments |  |  | (2.9 | ) |  |  | (3.4 | ) |  |  | 1.1 |  |  |  | (4.9 | )
Net Economic Earnings |  | $ | 195.6 |  |  | $ | 144.0 |  |  | $ | 272.5 |  |  | $ | 215.8 |

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