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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net income | $ 365,557 | $ 636,170 | $ 588,158
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation, depletion and amortization | 285,446 | 267,982 | 276,670
Non-cash compensation expense | 10,614 | 12,864 | 11,029
Coal inventory adjustment to market | 24,568 | 33,296 | 364
Equity method investment loss (income) | 4,961 | 1,468 | (5,634)
Distributions from equity method investments | 2,377 | 2,567 | 5,634
Net gain on sale of property, plant and equipment | (262) | (3,230) | (3,665)
Asset impairment | 31,130 |  |
Change in deferred income tax | (2,185) | (8,973) | 34,775
Change in fair value of digital assets | (22,395) |  |
Other non-cash change in digital assets | (10,358) | (12,516) | (307)
Other | 20,844 | 10,316 | 1,455
Changes in operating assets and liabilities: |  |  |
Trade receivables | 115,793 | (41,210) | (108,893)
Other receivables | (1,201) | (1,077) | (7,921)
Inventories, net | (22,243) | (78,004) | (20,138)
Prepaid expenses and other assets | (3,068) | 4,108 | (5,014)
Advance royalties | (2,781) | (3,636) | (6,787)
Accounts payable | (19,223) | 17,842 | 14,580
Accrued taxes other than income taxes | 44 | (1,960) | 5,180
Accrued payroll and related benefits | (2,938) | (9,739) | 2,818
Pneumoconiosis benefits | 9,199 | 3,924 | 3,849
Workers' compensation | (105) | (1,477) | (3,996)
Other | 19,357 | (4,484) | 20,192
Total net adjustments | 437,574 | 188,061 | 214,191
Net cash provided by operating activities | 803,131 | 824,231 | 802,349
Property, plant and equipment: |  |  |
Capital expenditures | (428,741) | (379,338) | (286,394)
Change in accounts payable and accrued liabilities | 9,142 | (29,695) | 35,956
Proceeds from sale of property, plant and equipment | 1,626 | 3,710 | 7,468
Contributions to equity method investments | (2,896) | (2,518) | (24,087)
Purchase of equity securities |  | (49,560) | (42,000)
JC Resources acquisition |  | (64,999) |
Oil & gas reserve business combinations |  | (14,459) | (92,618)
Oil & gas reserve asset acquisitions | (24,733) | (24,225) |
Other | 4,938 | 7,762 | (1,663)
Net cash used in investing activities | (440,664) | (553,322) | (403,338)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Borrowings under securitization facility | 75,000 |  | 27,500
Payments under securitization facility | (75,000) |  | (27,500)
Proceeds from equipment financings | 54,626 |  |
Payments on equipment financings | (11,981) | (24,970) | (16,071)
Borrowings under revolving credit facilities | 20,000 |  |
Payments under revolving credit facilities | (20,000) |  |
Borrowing under long-term debt | 400,000 | 75,000 |
Payments on long-term debt | (299,842) | (129,455) |
Payment of debt issuance costs | (11,442) | (12,376) |
Payments for purchases of units under unit repurchase program |  | (19,432) |
Payments for purchase of units and tax withholdings related to settlements under deferred compensation plans | (15,544) | (10,334) |
Cash settlement of grants under deferred compensation plans | (21,786) |  |
Excess purchase price over the contributed basis from JC Resources acquisition |  | (7,251) |
Cash retained by JC Resources in acquisition |  | (2,933) | (10,537)
Distributions paid to Partners | (363,430) | (364,579) | (196,347)
Other | (15,919) | (10,789) | (2,436)
Net cash used in financing activities | (285,318) | (507,119) | (225,391)
NET CHANGE IN CASH AND CASH EQUIVALENTS | 77,149 | (236,210) | 173,620
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 59,813 | 296,023 | 122,403
CASH AND CASH EQUIVALENTS AT END OF PERIOD | $ 136,962 | $ 59,813 | $ 296,023

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- Definition The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-15 + Details
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- Definition The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-15 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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