Exhibit 12.1

Statement of Computation of Ratio of Earnings to Fixed Charges

(UNAUDITED)

Atlas Energy Resources, LLC

(amounts in thousands except ratios)

	Year Ended						Six Months
	December 31,			December 31,			Ended
	2007			2008			June 30, 2009
Earnings:
Income before income tax expense	$	117,536		$	142,843	(2)	$	37,849
Fixed charges		33,153			61,721			32,100
Equity income of unconsolidated subsidiary		158			(233	)		(174	)
Interest capitalized		(2,730	)		(4,994	)		(3,724	)
Amortization of previously capitalized interest		191			423			572
Total	$	148,308		$	199,760		$	66,623
Fixed Charges:
Interest cost and debt expense	$	30,096		$	56,306		$	28,108
Interest allocable to rental expense (1)		327			421			268
Interest capitalized		2,730			4,994			3,724
Total Fixed charges	$	33,153		$	61,721		$	32,100
Ratio of Earnings to Fixed Charges		4.47	x		3.24	x		2.08	x

(1)	Represents one-third of the total operating lease rental expense which is that portion deemed to be interest.
(2)	Income before income tax expense has been restated (increased) by $32,000 and $64,000 for the years ended December 31, 2007 and 2008, respectively, to reflect the adoption of Statement of Financial Accounting Standard No. 160, “Noncontrolling interest in Consolidated Financial Statements — an amendment of ARB No. 51.”