CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash Flows from Operating Activities:
Net Income (Loss)	$ 70,958	$ 46,445
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Depreciation, Depletion and Amortization	49,471	52,993
Gain on Sale of Assets	(254)	(7,955)
Stock/Unit Based Compensation	1,847	3,760
Deferred Income Taxes	7,527	(5,938)
Changes in Operating Assets:
Accounts and Notes Receivable	8,390	(34,007)
Inventories	(7,346)	(4,906)
Prepaid Expenses	(1,185)	1,063
Changes in Other Assets	8,314	7,795
Changes in Operating Liabilities:
Accounts Payable	(11,267)	(17,508)
Other Operating Liabilities	(6,213)	14,346
Changes in Other Liabilities	(7,376)	(5,680)
Other	2,867	(1,871)
Net Cash Provided by Operating Activities	115,733	48,537
Cash Flows from Investing Activities:
Capital Expenditures	(21,956)	(9,021)
Proceeds from Sales of Assets	393	9,709
Net Cash (Used in) Provided by Investing Activities	(21,563)	688
Cash Flows from Financing Activities:
Payments on Capitalized Lease Obligations	(1,366)	0
Net Payments on Revolver - MLP	0	(4,000)
Repurchases of Common Stock	(1,285)	0
Spin Distribution to CNX Resources	(18,234)	0
Distributions to Noncontrolling Interest	(5,587)	(5,467)
Other Parent Net Distributions	0	(45,624)
Shares/Units Withheld for Taxes	(2,788)	(807)
Debt-Related Financing Fees	(1,170)	0
Net Cash Used in Financing Activities	(56,430)	(55,898)
Net Increase (Decrease) in Cash	37,740	(6,673)
Cash at Beginning of Period	153,979	13,311
Cash at End of Period	191,719	6,638
Non-Cash Investing and Financing Activities:
Capital Lease	22,631	0
Term Loan A
Cash Flows from Financing Activities:
Payments of loans	(15,000)	0
Term Loan B
Cash Flows from Financing Activities:
Payments of loans	(1,000)	0
Senior Secured Second Lien Notes due 2025
Cash Flows from Financing Activities:
Payments of loans	$ (10,000)	$ 0