Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Inventories

Inventories consist of the following: 

	March 31,		December 31,
	2016		2015
	(In thousands)
Coal	$	85,987	$	85,043
Repair parts and supplies	110,000		111,677
	$	195,987	$	196,720