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CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Utility revenues: |  |  |
Utility revenues, exclusive of alternative revenue programs | $ 1,746,097 | $ 1,742,876 | $ 1,445,000
Alternative revenue programs | 4,899 | (33,357) | (6,635)
Total utility revenues | 1,750,996 | 1,709,519 | 1,438,365
Non-utility revenues | 558 | 688 | 571
Total operating revenues | 1,751,554 | 1,710,207 | 1,438,936
Utility operating expenses: |  |  |
Resource costs | 702,372 | 735,862 | 497,123
Other operating expenses | 413,608 | 405,165 | 366,125
Depreciation and amortization | 265,329 | 253,017 | 231,915
Taxes other than income taxes | 109,715 | 114,193 | 109,353
Non-utility operating expenses | 2,840 | 11,728 | 6,188
Total operating expenses | 1,493,864 | 1,519,965 | 1,210,704
Income from operations | 257,690 | 190,242 | 228,232
Interest expense | 140,795 | 117,634 | 105,731
Interest expense to affiliated trust | 2,504 | 1,058 | 421
Capitalized interest | (3,633) | (3,718) | (3,987)
Other income-net | (19,526) | (62,717) | (33,298)
Income before income taxes | 137,550 | 137,985 | 159,365
Income tax expense (benefit) | (33,630) | (17,191) | 12,031
Net income | $ 171,180 | $ 155,176 | $ 147,334
Weighted-average common shares outstanding (thousands), basic | 76,396 | 72,989 | 69,951
Weighted-average common shares outstanding (thousands), diluted | 76,495 | 73,093 | 70,085
Earnings per common share: |  |  |
Basic | $ 2.24 | $ 2.13 | $ 2.11
Diluted | $ 2.24 | $ 2.12 | $ 2.1

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