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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net income (loss) | $ 178,755 | $ (129,051) | $ 406,926
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Depreciation, depletion and amortization | 261,377 | 313,387 | 309,075
Non-cash compensation expense | 5,709 | 3,345 | 11,934
Asset retirement obligations | 3,688 | 4,033 | 4,087
Coal inventory adjustment to market | 70 | 3,245 | 4,895
Equity investment income | (2,130) | (907) | (2,203)
Distributions from equity method investments | 2,130 | 907 | 2,203
Income from equity securities paid-in-kind |  |  | (712)
Net loss (gain) on sale of property, plant and equipment | (6,592) | (5,850) | 109
Asset impairment |  | 24,977 | 15,190
Goodwill impairment | 0 | 132,026 | 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 | (834) | 1,151 | (413)
Other | 212 | 6,631 | 5,677
Changes in operating assets and liabilities: |  |  |
Trade receivables | (24,952) | 56,172 | 20,841
Other receivables | 3,109 | (3,225) | 3,726
Inventories, net | (4,673) | 30,522 | (35,082)
Prepaid expenses and other assets | 211 | (2,514) | 6,136
Advance royalties | (7,523) | (7,690) | (9,876)
Accounts payable | 19,481 | (24,282) | (17,671)
Accrued taxes other than income taxes | (7,267) | 9,286 | (994)
Accrued payroll and related benefits | 8,281 | (8,051) | (6,538)
Pneumoconiosis benefits | 6,832 | 2,340 | (2,292)
Workers' compensation | (1,292) | 1,355 | 3,845
Other | (9,390) | (7,162) | (15,443)
Total net adjustments | 246,447 | 529,696 | 107,969
Net cash provided by operating activities | 425,202 | 400,645 | 514,895
Property, plant and equipment: |  |  |
Capital expenditures | (122,984) | (121,101) | (305,858)
Change in accounts payable and accrued liabilities | 2,594 | (8,773) | (81)
Proceeds from sale of property, plant and equipment | 7,719 | 3,762 | 1,266
Distributions received from investments in excess of cumulative earnings | 943 | 988 | 2,501
Payments for acquisitions of businesses, net of cash acquired |  |  | (320,232)
Oil & gas reserve acquisition | (30,960) |  |
Cash received from redemption of equity securities |  |  | 134,288
Net cash used in investing activities | (142,688) | (125,124) | (488,116)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Borrowings under securitization facility | 35,000 | 46,100 | 184,500
Payments under securitization facility | (90,900) | (64,000) | (202,700)
Proceeds from equipment financings |  | 14,705 | 63,086
Payments on equipment financings | (17,299) | (14,805) | (2,607)
Borrowings under revolving credit facilities | 15,000 | 70,000 | 400,000
Payments under revolving credit facilities | (102,500) | (237,500) | (320,000)
Borrowings from line of credit | 5,340 |  |
Payment on line of credit | (5,340) |  |
Payments on finance lease obligations | (766) | (8,368) | (46,725)
Payment of debt issuance costs | (113) | (6,280) |
Payments for purchases of units under unit repurchase program |  |  | (22,892)
Payments for purchase of units and tax withholdings related to settlements under deferred compensation plans | (1,090) | (1,310) | (7,817)
Cash settlement of grants under deferred compensation plan |  | (2,490) |
Distributions paid to Partners | (52,158) | (51,753) | (278,425)
Other | (859) | (728) | (867)
Net cash used in financing activities | (215,685) | (256,429) | (234,447)
NET CHANGE IN CASH AND CASH EQUIVALENTS | 66,829 | 19,092 | (207,668)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 55,574 | 36,482 | 244,150
CASH AND CASH EQUIVALENTS AT END OF PERIOD | $ 122,403 | $ 55,574 | $ 36,482

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