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v3.23.1

Note 14 - Information by Operating Segment (Tables) | 12 Months Ended
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Sep. 30, 2022
Notes Tables |
Schedule of Segment Reporting Information, by Segment [Table Text Block] |
|  | Gas |  |  | Gas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2022 |  | Utility |  |  | Marketing |  |  | Midstream |  |  | Other |  |  | Eliminations |  |  | Consolidated |
Revenues from external customers |  | $ | 1,945.6 |  |  | $ | 234.9 |  |  | $ | 17.4 |  |  | $ | 0.6 |  |  | $ | — |  |  | $ | 2,198.5 |
Intersegment revenues |  |  | 0.5 |  |  |  | — |  |  |  | 35.7 |  |  |  | 15.5 |  |  |  | (51.7 | ) |  |  | — |
Total Operating Revenues |  |  | 1,946.1 |  |  |  | 234.9 |  |  |  | 53.1 |  |  |  | 16.1 |  |  |  | (51.7 | ) |  |  | 2,198.5 |
Operating Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Natural gas |  |  | 788.8 |  |  |  | 171.4 |  |  |  | — |  |  |  | — |  |  |  | (36.3 | ) |  |  | 923.9 |
Operation and maintenance |  |  | 413.3 |  |  |  | 14.6 |  |  |  | 22.2 |  |  |  | 14.9 |  |  |  | (15.4 | ) |  |  | 449.6 |
Depreciation and amortization |  |  | 227.9 |  |  |  | 1.4 |  |  |  | 7.5 |  |  |  | 0.5 |  |  |  | — |  |  |  | 237.3 |
Taxes, other than income taxes |  |  | 176.2 |  |  |  | 0.6 |  |  |  | 2.6 |  |  |  | 0.1 |  |  |  | — |  |  |  | 179.5 |
Total Operating Expenses |  |  | 1,606.2 |  |  |  | 188.0 |  |  |  | 32.3 |  |  |  | 15.5 |  |  |  | (51.7 | ) |  |  | 1,790.3 |
Operating Income |  | $ | 339.9 |  |  | $ | 46.9 |  |  | $ | 20.8 |  |  | $ | 0.6 |  |  | $ | — |  |  | $ | 408.2 |
Net Economic Earnings (Loss) |  | $ | 202.7 |  |  | $ | 27.0 |  |  | $ | 11.1 |  |  | $ | (24.5 | ) |  | $ | — |  |  | $ | 216.3 |
Capital Expenditures |  | $ | 528.6 |  |  | $ | 0.9 |  |  | $ | 23.3 |  |  | $ | — |  |  | $ | (0.6 | ) |  | $ | 552.2 |
|  | Gas |  |  | Gas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2021 |  | Utility |  |  | Marketing |  |  | Midstream |  |  | Other |  |  | Eliminations |  |  | Consolidated |
Revenues from external customers |  | $ | 2,118.2 |  |  | $ | 96.5 |  |  | $ | 19.9 |  |  | $ | 0.9 |  |  | $ | — |  |  | $ | 2,235.5 |
Intersegment revenues |  |  | 1.1 |  |  |  | — |  |  |  | 32.7 |  |  |  | 14.2 |  |  |  | (48.0 | ) |  |  | — |
Total Operating Revenues |  |  | 2,119.3 |  |  |  | 96.5 |  |  |  | 52.6 |  |  |  | 15.1 |  |  |  | (48.0 | ) |  |  | 2,235.5 |
Operating Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Natural gas |  |  | 961.7 |  |  |  | 18.8 |  |  |  | — |  |  |  | 0.1 |  |  |  | (34.3 | ) |  |  | 946.3 |
Operation and maintenance |  |  | 422.2 |  |  |  | 17.1 |  |  |  | 24.2 |  |  |  | 16.0 |  |  |  | (13.7 | ) |  |  | 465.8 |
Depreciation and amortization |  |  | 204.4 |  |  |  | 1.2 |  |  |  | 6.9 |  |  |  | 0.6 |  |  |  | — |  |  |  | 213.1 |
Taxes, other than income taxes |  |  | 157.0 |  |  |  | 0.9 |  |  |  | 2.0 |  |  |  | 0.2 |  |  |  | — |  |  |  | 160.1 |
Total Operating Expenses |  |  | 1,745.3 |  |  |  | 38.0 |  |  |  | 33.1 |  |  |  | 16.9 |  |  |  | (48.0 | ) |  |  | 1,785.3 |
Operating Income (Loss) |  | $ | 374.0 |  |  | $ | 58.5 |  |  | $ | 19.5 |  |  | $ | (1.8 | ) |  | $ | — |  |  | $ | 450.2 |
Net Economic Earnings (Loss) |  | $ | 230.6 |  |  | $ | 47.0 |  |  | $ | 11.1 |  |  | $ | (22.4 | ) |  | $ | — |  |  | $ | 266.3 |
Capital Expenditures |  | $ | 590.4 |  |  | $ | 0.7 |  |  | $ | 33.0 |  |  | $ | 0.7 |  |  | $ | — |  |  | $ | 624.8 |
|  | Gas |  |  | Gas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2020 |  | Utility |  |  | Marketing |  |  | Midstream |  |  | Other |  |  | Eliminations |  |  | Consolidated |
Revenues from external customers |  | $ | 1,751.8 |  |  | $ | 87.9 |  |  | $ | 14.9 |  |  | $ | 0.8 |  |  | $ | — |  |  | $ | 1,855.4 |
Intersegment revenues |  |  | 0.2 |  |  |  | — |  |  |  | 28.2 |  |  |  | 13.9 |  |  |  | (42.3 | ) |  |  | — |
Total Operating Revenues |  |  | 1,752.0 |  |  |  | 87.9 |  |  |  | 43.1 |  |  |  | 14.7 |  |  |  | (42.3 | ) |  |  | 1,855.4 |
Operating Expenses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Natural gas |  |  | 660.2 |  |  |  | 65.1 |  |  |  | 0.3 |  |  |  | 0.1 |  |  |  | (29.6 | ) |  |  | 696.1 |
Operation and maintenance |  |  | 421.3 |  |  |  | 11.8 |  |  |  | 21.9 |  |  |  | 16.3 |  |  |  | (12.7 | ) |  |  | 458.6 |
Depreciation and amortization |  |  | 189.7 |  |  |  | 0.6 |  |  |  | 6.5 |  |  |  | 0.5 |  |  |  | — |  |  |  | 197.3 |
Taxes, other than income taxes |  |  | 146.5 |  |  |  | 1.1 |  |  |  | 1.0 |  |  |  | (0.2 | ) |  |  | — |  |  |  | 148.4 |
Impairments |  |  | — |  |  |  | — |  |  |  | 140.8 |  |  |  | 7.8 |  |  |  | — |  |  |  | 148.6 |
Total Operating Expenses |  |  | 1,417.7 |  |  |  | 78.6 |  |  |  | 170.5 |  |  |  | 24.5 |  |  |  | (42.3 | ) |  |  | 1,649.0 |
Operating Income (Loss) |  | $ | 334.3 |  |  | $ | 9.3 |  |  | $ | (127.4 | ) |  | $ | (9.8 | ) |  | $ | — |  |  | $ | 206.4 |
Net Economic Earnings (Loss) |  | $ | 213.4 |  |  | $ | 9.1 |  |  | $ | 5.9 |  |  | $ | (20.6 | ) |  | $ | — |  |  | $ | 207.8 |
Capital Expenditures |  | $ | 547.8 |  |  | $ | 3.6 |  |  | $ | 86.3 |  |  | $ | 0.7 |  |  | $ | — |  |  | $ | 638.4 |
Reconciliation of Assets from Segment to Consolidated [Table Text Block] |
Total Assets at End of Year |  | 2022 |  |  | 2021 |  |  | 2020 |
Gas Utility |  | $ | 8,042.8 |  |  | $ | 7,615.4 |  |  | $ | 6,716.2 |
Gas Marketing |  |  | 638.7 |  |  |  | 466.1 |  |  |  | 182.7 |
Midstream |  |  | 446.0 |  |  |  | 413.8 |  |  |  | 388.8 |
Other |  |  | 2,705.5 |  |  |  | 2,193.3 |  |  |  | 2,313.5 |
Eliminations |  |  | (1,749.3 | ) |  |  | (1,332.2 | ) |  |  | (1,360.0 | )
Total Assets |  | $ | 10,083.7 |  |  | $ | 9,356.4 |  |  | $ | 8,241.2 |
Reconciliation Of Consolidated Net Economic Earnings To Consolidated Net Income [Table Text Block] |
Reconciliation of Consolidated Net Income to Consolidated Net Economic Earnings |  | 2022 |  |  | 2021 |  |  | 2020 |
Net Income |  | $ | 220.8 |  |  | $ | 271.7 |  |  | $ | 88.6 |
Adjustments, pre-tax: |  |  |  |  |  |  |  |  |  |  |  |
Impairments |  |  | — |  |  |  | — |  |  |  | 148.6 |
Missouri regulatory adjustments |  |  | — |  |  |  | (9.0 | ) |  |  | — |
Fair value and timing adjustments |  |  | (11.4 | ) |  |  | 3.3 |  |  |  | 2.5 |
Acquisition, divestiture and restructuring activities |  |  | — |  |  |  | (1.3 | ) |  |  | — |
Income tax effect of adjustments |  |  | 6.9 |  |  |  | 1.6 |  |  |  | (31.9 | )
Net Economic Earnings |  | $ | 216.3 |  |  | $ | 266.3 |  |  | $ | 207.8 |

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