EXHIBIT 12.1

Alta Mesa Holdings, LP

Ratio of Earnings to Fixed Charges

	Six Months Ended June 30, 2017		2016			2015			2014		2013			2012
	(dollars in thousands, except ratio)
Earnings:
Net income (loss) before tax	$	9,886	$	(167,950	)	$	(131,231	)	$	99,376	$	(153,715	)	$	(95,982	)
Fixed charges:
Interest (1)		25,447		61,454			62,953			56,381		55,716			42,347
Earnings before fixed charges		35,333		(106,496	)		(68,278	)		155,757		(97,999	)		(53,635	)
Fixed charges:
Interest (1)		25,447		61,454			62,953			56,381		55,716			42,347
Total fixed charges	$	25,447	$	61,454		$	62,953		$	56,381	$	55,716		$	42,347
Ratio of earnings to fixed charges		1.39		N/A			N/A			2.76		N/A			N/A

(1) Interest expense includes interest on debt, amortization of discount on debt, and an estimate of the interest expense portion of rent expense.