Exhibit 12.1

EXTERRAN CORPORATION

COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES

(In thousands, except ratio amounts)

	Years Ended December 31,
	2013			2014			2015			2016			2017
Income (loss) from continuing operations before income taxes	$	197,268		$	178,761		$	61,363		$	(47,524	)	$	16,839
Less: Equity in income of non-consolidated affiliates		(19,000	)		(14,553	)		(15,152	)		(10,403	)		—
Add: Fixed charges (from below)		4,718			3,133			8,362			35,270			39,026
Add: Amortization of capitalized interest		—			—			6			21			49
Add: Return of investments in non-consolidated affiliates		19,000			14,750			15,185			10,403			—
Less: Capitalized interest		—			—			(26	)		(289	)		(3,446	)
Earnings for computation of ratio	$	201,986		$	182,091		$	69,738		$	(12,522	)	$	52,468
Fixed charges:
Interest expense (1)	$	3,523		$	1,878		$	7,272		$	34,181		$	34,826
Capitalized interest		—			—			26			289			3,446
Interest portion of rental expense		1,195			1,255			1,064			800			754
Fixed charges	$	4,718		$	3,133		$	8,362		$	35,270		$	39,026
Ratio of earnings to fixed charges (earnings divided by fixed charges) (2)		42.8			58.1			8.3			—			1.3

(1) Includes amortization of deferred financing costs.

(2) The ratio of earnings to fixed charges was less than one-to-one for the year ended December 31, 2016. Additional earnings of $47.8 million would have been needed to have a one-to-one ratio of earnings to fixed charges.