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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Operating Activities |  |
Net (loss) income | $ (39,587) | $ 74,158
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation, depletion and amortization | 29,387 | 26,816
Amortization of deferred financing fees | 505 | 446
Deferred income taxes | (21,114) | (8,471)
Stock-based compensation | 5,157 | 7,541
Loss (gain) on sale of assets | 221 | (2,463)
Inventory impairment charge | 7,514 | 0
Other contract termination settlements | 0 | (15,552)
Long-lived asset impairment charge | 65,887 | 3,939
Other | 968 | (791)
Working capital changes: |  |
Affiliates receivable/payable | (55) | 0
Accounts receivable | 2,519 | (13,224)
Inventories | (12,971) | (6,834)
Other current assets | (1,849) | 1,308
Accounts payable | 3,148 | 252
Income taxes receivable/payable | 14,996 | (416)
Other current liabilities | (236) | 1,026
Net cash provided by operating activities | 54,490 | 67,735
Investing Activities |  |
Expenditures for property, plant and equipment | (45,408) | (42,523)
Acquisition of mineral interests | (36,714) | (11,924)
Proceeds from the sale of assets | 561 | 2,837
Equity method investment | (3,464) | 0
Proceeds from the sale of private company equity units | 3,574 | 18,628
Other | (146) | (170)
Net cash used for investing activities | (81,597) | (33,152)
Financing Activities |  |
Net additions (reductions) to revolving credit agreement | 10,000 | (4,000)
Additions to long-term debt | 5,232 | 3,091
Reductions to long-term debt | (4,209) | (2,919)
Cash dividends paid | (6,452) | (6,012)
Purchase of treasury shares | (3,103) | 0
Net cash provided by (used for) financing activities | 1,468 | (9,840)
Cash and Cash Equivalents |  |
Total (decrease) increase for the year | (25,639) | 24,743
Balance at the beginning of the year | 110,748 | 86,005
Balance at the end of the year | $ 85,109 | $ 110,748

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