Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash Flows from Operating Activities:
Net Income	$ 82,569	$ 50,450	$ 317,421
Adjustments to Reconcile Net Income to Net Cash Provided By Continuing Operating Activities:
Depreciation, Depletion and Amortization	172,002	178,122	195,337
Stock/Unit-Based Compensation	22,085	12,895	8,406
Gain on Sale of Assets	(17,212)	(5,228)	(13,025)
Deferred Income Taxes	16,610	91,525	72,616
Changes in Operating Assets:
Accounts and Notes Receivable	(44,417)	(17,608)	63,764
Inventories	(3,259)	3,352	4,951
Prepaid Expenses	(2,877)	7,503	(485)
Changes in Other Assets	6,050	(10,652)	(60,346)
Changes in Operating Liabilities:
Accounts Payable	7,043	(4,152)	(575)
Other Operating Liabilities	46,421	24,913	(57,973)
Changes in Other Liabilities	(40,765)	(10,609)	(266,700)
Other	3,860	8,596	28,302
Net Cash Provided by Operating Activities	248,110	329,107	291,693
Cash Flows from Investing Activities:
Capital Expenditures	(81,413)	(53,600)	(143,053)
Proceeds from Sales of Assets	24,582	7,842	12,779
Net Cash Used in Investing Activities	(56,831)	(45,758)	(130,274)
Cash Flows from Financing Activities:
(Payments on) Proceeds from Miscellaneous Borrowings	(3,904)	431	(5,829)
Net (Payments on) Proceeds from Revolver - MLP	(201,000)	16,000	185,000
Distributions to Noncontrolling Interest	(21,892)	(21,657)	(5,060)
Proceeds from Sale of MLP Interest	0	0	148,359
Units/Shares Withheld for Taxes	(2,156)	0	0
Spin Distribution to CNX Resources	(425,000)	0	0
Other Parent Net Distributions	(156,502)	(270,969)	(461,051)
Debt Issuance and Financing Fees	(32,304)	(482)	(16,336)
Net Cash (Used in) Provided by Financing Activities	(50,611)	(276,677)	(154,917)
Net Increase in Cash and Cash Equivalents	140,668	6,672	6,502
Cash and Cash Equivalents at Beginning of Period	13,311	6,639	137
Cash and Cash Equivalents at End of Period	153,979	13,311	6,639
Term Loan A
Cash Flows from Financing Activities:
Proceeds from issuance of debt	100,000	0	0
Term Loan B
Cash Flows from Financing Activities:
Proceeds from issuance of debt	392,147	0	0
Senior Secured Second Lien Notes due 2025
Cash Flows from Financing Activities:
Proceeds from issuance of debt	$ 300,000	$ 0	$ 0

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