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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2023 | Jun. 30, 2022
Cash flows from operating activities: |  |
Net income (loss) | $ 184,292 | $ (6,891)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |
Depreciation, depletion, amortization and impairment | 254,994 | 238,491
Deferred income tax expense | 29,080 | 404
Stock-based compensation expense | 5,980 | 9,804
Net gain on asset disposals | (1,374) | (10,408)
Gain on early debt extinguishment | (1,112) | 0
Other | 896 | 534
Changes in operating assets and liabilities: |  |
Accounts receivable | 74,471 | (116,859)
Inventory | (12,302) | (15,062)
Other current assets | (24,284) | (7,659)
Other assets | 3,525 | 4,930
Accounts payable | (4,214) | 42,661
Accrued liabilities | (106,546) | (50,313)
Other liabilities | (6,200) | (4,615)
Net cash provided by operating activities | 397,206 | 85,017
Cash flows from investing activities: |  |
Purchases of property and equipment | (249,995) | (191,198)
Proceeds from disposal of assets | 7,792 | 15,346
Other | (9) | (2,342)
Net cash used in investing activities | (242,212) | (178,194)
Cash flows from financing activities: |  |
Purchases of treasury stock | (100,915) | (12,897)
Dividends paid | (33,507) | (17,263)
Repayment of senior notes | (7,837) | 0
Proceeds from borrowings under revolving credit facility | 0 | 45,000
Repayment of borrowings under revolving credit facility | 0 | (20,000)
Net cash used in financing activities | (142,259) | (5,160)
Effect of foreign exchange rate changes on cash | 0 | 449
Net increase (decrease) in cash and cash equivalents | 12,735 | (97,888)
Cash and cash equivalents at beginning of period | 137,553 | 117,524
Cash and cash equivalents at end of period | 150,288 | 19,636
Net cash received (paid) during the period for: |  |
Interest, net of capitalized interest of $836 in 2023 and $400 in 2022 | (17,512) | (20,341)
Income taxes | (17,666) | (880)
Non-cash investing and financing activities: |  |
Net increase in payables for purchases of property and equipment | 12,720 | 19,779
Net increase in deposits on equipment purchases | (1,171) | (4,363)
Cashless exercise of stock options | $ 0 | $ 10,368

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