Exhibit 12.1

Computation of Ratio of Earnings to Combined Fixed Charges and Preference Dividends

	Year Ended December 31,
	2014			2013			2012			2011			2010
Income (loss) from continuing operations excluding income or loss from equity investments	$	(522,387	)	$	(1,089,023	)	$	(1,102,837	)	$	52,824		$	125,598
Adjustments:
Fixed charges	402,089			450,743			367,238			294,484			152,730
Distributed income from equity investments	12,603			13,536			5,342			19,360			9,917
Capitalized interest, net of amortization	5,078			(13,518		)	19,163			2,113			4,417
Arch Western Resources, LLC dividends on preferred membership interest	—			—			(72		)	(91		)	(107		)
Total loss	$	(100,192	)	$	(638,262	)	$	(711,166	)	$	368,690		$	292,555
Fixed charges:
Interest expense	$	390,946		$	381,268		$	317,615		$	230,186		$	142,549
Capitalized interest	—			15,918			15,625			1,937			—
Costs of debt retirement and write-off of related capitalized financing costs	—			42,921			23,668			51,448			—
Arch Western Resources, LLC dividends on preferred membership interest	—			—			72			91			107
Portions of rent which represent an interest factor	13,568			10,636			10,258			10,822			10,074
Total fixed charges	$	404,514		$	450,743		$	367,238		$	294,484		$	152,730
Ratio of earnings to fixed charges	N/A			N/A			N/A			1.25		x	1.92		x

Total loss consists of loss from continuing operations before income taxes and are adjusted to include only distributed income from affiliates accounted for on the equity method and fixed charges (excluding capitalized interest).  Fixed charges consist of interest incurred on indebtedness, the portion of operating lease rentals deemed representative of the interest factor and the amortization of debt expense.