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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net income (loss) | $ (129,051) | $ 406,926 | $ 367,470
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation, depletion and amortization | 313,387 | 309,075 | 280,225
Non-cash compensation expense | 3,345 | 11,934 | 12,114
Asset retirement obligations | 4,033 | 4,087 | 3,926
Coal inventory adjustment to market | 3,245 | 4,895 | 1,455
Equity investment income | (907) | (2,203) | (22,189)
Distributions from equity method investments | 907 | 2,203 | 21,971
Income from equity securities paid-in-kind |  | (712) | (15,696)
Net loss (gain) on sale of property, plant and equipment | (5,850) | 109 | (1,285)
Asset impairment | 24,977 | 15,190 | 40,483
Goodwill impairment | 132,026 | 0 | 0
Acquisition gain, net |  | (177,043) |
Cash received on redemption of equity securities in excess of investment |  | (11,482) |
Valuation allowance of deferred tax assets | 1,151 | (413) | (1,560)
Other | 6,631 | 5,677 | 3,171
Changes in operating assets and liabilities: |  |  |
Trade receivables | 56,172 | 20,841 | 6,757
Other receivables | (3,225) | 3,726 | (249)
Inventories, net | 30,522 | (35,082) | (747)
Prepaid expenses and other assets | (2,514) | 6,136 | 7,387
Advance royalties | (7,690) | (9,876) | (8,782)
Accounts payable | (24,282) | (17,671) | (813)
Accrued taxes other than income taxes | 9,286 | (994) | (3,614)
Accrued payroll and related benefits | (8,051) | (6,538) | 7,362
Pneumoconiosis benefits | 2,340 | (2,292) | 1,837
Workers' compensation | 1,355 | 3,845 | (4,900)
Other | (7,162) | (15,443) | 22
Total net adjustments | 529,696 | 107,969 | 326,875
Net cash provided by operating activities | 400,645 | 514,895 | 694,345
Property, plant and equipment: |  |  |
Capital expenditures | (121,101) | (305,858) | (233,480)
Decrease in accounts payable and accrued liabilities | (8,773) | (81) | (1,051)
Proceeds from sale of property, plant and equipment | 3,762 | 1,266 | 2,409
Contributions to equity method investments |  |  | (15,600)
Distributions received from investments in excess of cumulative earnings | 988 | 2,501 | 2,473
Payments for acquisitions of businesses, net of cash acquired |  | (320,232) |
Cash received from redemption of equity securities |  | 134,288 |
Net cash used in investing activities | (125,124) | (488,116) | (245,249)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Borrowings under securitization facility | 46,100 | 184,500 | 304,600
Payments under securitization facility | (64,000) | (202,700) | (285,000)
Proceeds from equipment financings | 14,705 | 63,086 |
Payments on equipment financings | (14,805) | (2,607) |
Borrowings under revolving credit facilities | 70,000 | 400,000 | 245,000
Payments under revolving credit facilities | (237,500) | (320,000) | (100,000)
Payments on finance lease obligations | (8,368) | (46,725) | (29,353)
Payment of debt issuance costs | (6,280) |  |
Payments for purchases of units under unit repurchase program |  | (22,892) | (70,604)
Payments for taxes related to net settlement of issuance of units in deferred compensation plans | (1,310) | (7,817) | (2,081)
cs under deferred compensation plan | (2,490) |  |
Cash contributions by General Partner |  |  | 41
Cash contribution by affiliated entity |  |  | 2,142
Cash obtained in Simplification Transactions |  |  | 1,139
Distributions paid to Partners | (51,753) | (278,425) | (275,902)
Other | (728) | (867) | (1,684)
Net cash used in financing activities | (256,429) | (234,447) | (211,702)
NET CHANGE IN CASH AND CASH EQUIVALENTS | 19,092 | (207,668) | 237,394
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 36,482 | 244,150 | 6,756
CASH AND CASH EQUIVALENTS AT END OF PERIOD | $ 55,574 | $ 36,482 | $ 244,150

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