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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
OPERATING REVENUES |  |
Utility | $ 274,435 | $ 195,729
Nonutility | 401,407 | 258,576
Total operating revenues | 675,842 | 454,305
Natural gas purchases: |  |
Gas purchases - Related parties | 1,846 | 1,734
Operation and maintenance | 68,984 | 73,636
Regulatory rider expenses | 16,671 | 10,701
Depreciation and amortization | 30,393 | 27,362
Total operating expenses | 518,957 | 342,825
OPERATING INCOME | 156,885 | 111,480
Other income, net | 4,136 | 4,117
Interest expense, net of capitalized interest | 19,477 | 19,786
INCOME BEFORE INCOME TAXES AND EQUITY IN EARNINGS OF AFFILIATES | 141,544 | 95,811
Income tax provision | 30,807 | 17,441
Equity in earnings of affiliates | 575 | 2,675
NET INCOME | $ 111,312 | $ 81,045
EARNINGS PER COMMON SHARE |  |
Basic (usd per share) | $ 1.16 | $ 0.84
Diluted (usd per share) | $ 1.16 | $ 0.84
WEIGHTED AVERAGE SHARES OUTSTANDING |  |
Basic (in shares) | 95,944 | 96,114
Diluted (in shares) | 96,356 | 96,415
Regulated |  |
Natural gas purchases: |  |
Gas purchases - Utility and Nonutility | $ 122,269 | $ 56,145
Unregulated |  |
Natural gas purchases: |  |
Gas purchases - Utility and Nonutility | $ 278,794 | $ 173,247

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