RELATED-PARTY TRANSACTIONS (Tables)

12 Months Ended

Dec. 31, 2016

RELATED-PARTY TRANSACTIONS

Summary of advanced royalties outstanding

					WKY CoalPlay
	SGP				Towhead		Webster		Henderson		WKY
	Land		SGP		Coal		Coal		Coal		CoalPlay
					Henderson						Henderson
	MC		Tunnel		& Union		Webster		Henderson		& Union
	Mining		Ridge		Counties, KY		County, KY		County, KY		Counties, KY		Total
	2001		2005		December 2014		December 2014		December 2014		February 2015
	(in thousands)
As of January 1, 2014	$	766	$	16,993	$	—	$	—	$	—	$	—	$	17,759
Payments		—		3,000		—		—		—		—		3,000
Recoupment		(766)		(9,287)		—		—		—		—		(10,053)
As of December 31, 2014		—		10,706		—		—		—		—		10,706
Payments		—		3,000		3,598		2,568		2,522		2,131		13,819
Recoupment		—		(8,293)		—		(42)		—		—		(8,335)
As of December 31, 2015		—		5,413		3,598		2,526		2,522		2,131		16,190
Payments		—		3,000		3,598		2,568		2,522		2,131		13,819
Recoupment		—		(8,413)		(1)		(1,775)		—		—		(10,189)
As of December 31, 2016	$	—	$	—	$	7,195	$	3,319	$	5,044	$	4,262	$	19,820