CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net income (loss)	$ (659,426)	$ (37,610)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and depletion	22,583	29,396
Accretion	3,097	3,411
Impairments	621,005	800
Loss (income) from unconsolidated affiliates, net of tax	(866)	(266)
Distributions of income from unconsolidated affiliates	1,250	1,000
Gain on sale of assets	(1,056)	0
Equity-based compensation expense	2,206	1,878
Settlement of completed derivatives	(1,809)	0
Non-cash interest expense related to early retirement to refinancings	216	1,611
Non-cash reorganization items	(44,327)	0
Payment of deferred financing costs	0	(3,621)
Net periodic postretirement benefit cost (credit)	(3,510)	(2,841)
Payments for logistics contracts	(5,000)	(5,000)
Logistics throughput contract amortization expense	7,554	8,322
Other	1,576	3,773
Changes in operating assets and liabilities:
Accounts receivable	(11,410)	8,097
Inventories, net	3,544	2,307
Due to or from related parties	(179)	(574)
Other assets	1,786	2,995
AMT tax refund	15,768	0
Accounts payable and accrued expenses	38,888	(9,628)
Asset retirement obligations	(5,772)	(482)
Net cash provided by (used in) operating activities	(13,882)	3,568
Investing activities
Purchases of property, plant and equipment	(1,299)	(4,831)
Investment in development projects	0	(1,894)
Proceeds from the sale of assets	3,208	69
Net cash provided by (used in) investing activities	1,909	(6,656)
Financing activities
Principal payments on federal coal leases	(379)	(574)
Principal payment on finance leases	(768)	(648)
Borrowings on debtor in possession financing	10,000	0
Payment of debt refinancing costs	0	0
Payments of deferred financing costs	(500)	(907)
Payment amortized to deferred gain	0	(6,298)
Other	0	(652)
Net cash provided by (used in) financing activities	8,353	(9,079)
Net increase (decrease) in cash, cash equivalents, and restricted cash	(3,620)	(12,167)
Cash, cash equivalents, and restricted cash at beginning of period	92,128	108,673
Cash, cash equivalents, and restricted cash at end of period	$ 88,508	$ 96,506

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