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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Cash flows from operating activities: |  |  |
Net income | $ 199,353 | $ 296,999 |
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation, depletion and amortization | 168,894 | 133,791 |
Gain on sale of assets | (1,302) | (1,227) |
Impairment | 3,919 | 23,304 |
Deferred income taxes | 26,966 | 73,923 |
Net (gain) loss on derivative instruments | 27,577 | (66,934) |
Net (gain) loss from investment in unconsolidated affiliate | (16,296) | 2,216 |
Equity-based compensation expenses | 4,771 | 11,854 |
Deferred financing costs amortization and other | 2,663 | (3,791) |
Working capital and other changes: |  |  |
Change in accounts receivable, net | (62,081) | (14,657) |
Change in inventory | (9,471) | (12,753) |
Change in prepaid expenses | (291) | 1,211 |
Change in accounts payable, interest payable and accrued liabilities | 29,147 | 8,176 |
Change in other assets and liabilities, net | 32,849 | 16,699 |
Net cash provided by operating activities | 406,698 | 468,811 |
Cash flows from investing activities: |  |  |
Capital expenditures | (222,149) | (172,328) |
Acquisitions, net of cash acquired | (334) | 0 |
Proceeds from divestitures, net of cash divested | 2,371 | 7,034 |
Derivative settlements | (12,062) | (91,656) |
Proceeds from sale of investment in unconsolidated affiliate | 0 | 12,347 |
Contingent consideration received | 25,000 | 0 |
Distributions from investment in unconsolidated affiliate | 2,287 | 3,015 |
Net cash used in investing activities | (204,887) | (241,588) |
Cash flows from financing activities: |  |  |
Repurchases of common stock | (31,999) | (15,003) |
Tax withholding on vesting of equity-based awards | (46,051) | (10,300) |
Dividends paid | (152,389) | (202,473) |
Payments on finance lease liabilities | (386) | (388) |
Proceeds from warrants exercised | 7,370 | 90 |
Net cash used in financing activities | (223,455) | (228,074) |
Decrease in cash and cash equivalents | (21,644) | (851) |
Cash and cash equivalents: |  |  |
Beginning of period | 317,998 | 593,151 | $ 593,151
End of period | 296,354 | 592,300 | $ 317,998
Supplemental non-cash transactions: |  |  |
Change in accrued capital expenditures | 25,312 | 46,097 |
Change in asset retirement obligations | 973 | 234 |
Dividends payable | $ 17,587 | $ 15,798 |

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