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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Cash flows from operating activities: |  |  |
Net income (loss) | $ (966,399) | $ 245,952 | $ 154,658
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |  |
Depreciation, depletion, amortization and impairment | 1,171,873 | 731,416 | 483,945
Impairment of goodwill | 885,240 | 0 | 0
Deferred income tax expense (benefit) | (1,765) | 51,866 | 6,998
Stock-based compensation | 46,352 | 46,750 | 21,099
Net gain on asset disposals | (3,688) | (1,798) | (12,075)
Other | 7,936 | (1,053) | (1,507)
Changes in operating assets and liabilities: |  |  |
Accounts receivable | 203,652 | 84,544 | (209,226)
Inventory | (11,463) | (30,793) | (23,154)
Other current assets | 19,599 | (10,360) | (1,975)
Other assets | 33,760 | 24,686 | 10,643
Accounts payable | (112,858) | (69,729) | 38,986
Accrued liabilities | (66,582) | (23,484) | 67,380
Other liabilities | (30,121) | (42,083) | 30,416
Net cash provided by operating activities | 1,175,536 | 1,005,914 | 566,188
Cash flows from investing activities: |  |  |
Acquisitions, net of cash acquired - NexTier | 0 | (65,185) | 0
Acquisitions, net of cash acquired - Ulterra | 2,983 | (357,314) | 0
Purchases of property and equipment | (678,386) | (615,690) | (436,797)
Proceeds from disposal of assets | 25,832 | 26,473 | 26,074
Other | (5,173) | (5,874) | (2,504)
Net cash used in investing activities | (654,744) | (1,017,590) | (413,227)
Cash flows from financing activities: |  |  |
Purchases of treasury stock | (290,427) | (200,710) | (70,070)
Dividends paid | (126,791) | (100,034) | (43,096)
Proceeds from borrowings under revolving credit facility | 50,000 | 420,000 | 150,000
Repayment of borrowings under revolving credit facility | (50,000) | (420,000) | (150,000)
Proceeds from issuance of senior notes | 0 | 396,412 | 0
Repayment of senior notes | 0 | (7,837) | (19,760)
Payments on finance leases | (45,484) | (15,915) | 0
Other | (12,290) | (6,349) | (455)
Net cash provided by (used in) financing activities | (474,992) | 65,567 | (133,381)
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash | 2,813 | 1,236 | 449
Net increase in cash, cash equivalents and restricted cash | 48,613 | 55,127 | 20,029
Cash, cash equivalents and restricted cash at beginning of year | 192,680 | 137,553 | 117,524
Cash, cash equivalents and restricted cash at end of year | 241,293 | 192,680 | 137,553
Net cash (paid) received during the year for: |  |  |
Interest, net of capitalized interest of $1,334 in 2024, $1,692 in 2023, and $976 in 2022 | (68,563) | (39,607) | (39,855)
Income taxes | (14,767) | (27,169) | (1,526)
Non-cash investing and financing activities: |  |  |
Net increase (decrease) in payables for purchases of property and equipment | (133) | (15,111) | 7,953
Net (increase) decrease in deposits on equipment purchases | 12,607 | 7,876 | (12,202)
Issuance of common stock for business acquisitions | 0 | 3,159,714 | 0
Cashless exercise of stock options | 0 | 0 | 10,368
Purchases of property and equipment through exchange of lease right of use asset | 30,961 | 3,241 | 0
Derecognition of right of use asset | $ (36,117) | $ (3,241) | $ 0

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