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Inventories (Tables)

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Inventories as of June 30, 2018 and December 31, 2017 consisted of the following:



	June 30, 2018				December 31, 2017
	(Dollars in millions)
Materials and supplies	$	101.3			$	101.5
Raw coal	63.8				78.1
Saleable coal	125.4				111.7
Total	$	290.5			$	291.3