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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2024 | Mar. 31, 2023
OPERATING REVENUES |  |  |  |
Utility | $ 462,863 | $ 400,500 | $ 755,956 | $ 757,909
Nonutility | 195,050 | 243,527 | 369,167 | 609,685
Total operating revenues | 657,913 | 644,027 | 1,125,123 | 1,367,594
Natural gas purchases: |  |  |  |
Related parties | 1,799 | 1,770 | 3,678 | 3,597
Operation and maintenance | 107,223 | 99,095 | 201,662 | 178,596
Regulatory rider expenses | 29,229 | 23,154 | 48,418 | 41,405
Depreciation and amortization | 40,075 | 38,090 | 80,362 | 74,773
Total operating expenses | 487,691 | 478,843 | 819,082 | 1,029,621
OPERATING INCOME | 170,222 | 165,184 | 306,041 | 337,973
Other income, net | 15,420 | 4,779 | 21,761 | 9,434
Interest expense, net of capitalized interest | 31,621 | 30,261 | 63,094 | 59,752
INCOME BEFORE INCOME TAXES AND EQUITY IN EARNINGS OF AFFILIATES | 154,021 | 139,702 | 264,708 | 287,655
Income tax provision | 33,947 | 30,586 | 56,883 | 63,564
Equity in earnings of affiliates | 738 | 1,131 | 2,398 | 2,077
NET INCOME | $ 120,812 | $ 110,247 | $ 210,223 | $ 226,168
EARNINGS PER COMMON SHARE |  |  |  |
Basic (usd per share) | $ 1.23 | $ 1.14 | $ 2.14 | $ 2.34
Diluted (usd per share) | $ 1.22 | $ 1.13 | $ 2.13 | $ 2.32
WEIGHTED AVERAGE SHARES OUTSTANDING |  |  |  |
Basic (in shares) | 98,377 | 96,893 | 98,123 | 96,689
Diluted (in shares) | 99,102 | 97,556 | 98,839 | 97,346
Utility |  |  |  |
Natural gas purchases: |  |  |  |
Gas purchases - Utility and Nonutility | $ 204,347 | $ 156,370 | $ 320,467 | $ 338,816
Nonutility |  |  |  |
Natural gas purchases: |  |  |  |
Gas purchases - Utility and Nonutility | $ 105,018 | $ 160,364 | $ 164,495 | $ 392,434

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