Inventories

3 Months Ended

Mar. 31, 2019

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consist of the following: 

	March 31,		December 31,
	2019		2018
	(In thousands)
Coal	$	57,147	$	40,982
Repair parts and supplies	88,460		84,488
	$	145,607	$	125,470

The repair parts and supplies are stated net of an allowance for slow-moving and obsolete inventories of $1.2 million at March 31, 2019 and $0.6 million at December 31, 2018.