EXHIBIT 12.1

Statement of Computation of Ratio of Earnings to Fixed Charges
(UNAUDITED)

Atlas Energy Resources, LLC
(amounts in thousands except ratios)

	December 31,			Nine months ended September 30,
	2007			2008
Earnings:
Income before income tax expense	$	117,504		$	114,082
Fixed charges		33,153			44,991
Minority interest		32			48
Loss from equity investee		158			(171	)
Interest capitalized		(2,730	)		(2,012	)
Amortization of previously capitalized interest		191			109
Total	$	148,308		$	157,047
Fixed Charges:
Interest cost and debt expense		30,096			42,666
Interest allocable to rental expense(1)		327			313
Interest capitalized		2,730			2,012
Total Fixed charges	$	33,153		$	44,991
Ratio of Earnings to Fixed Charges		4.47x			3.49x

*	We have not issued any preferred securities as of the date hereof and, accordingly, we have not paid any preferred dividends.
(1)	Represents one-third of the total operating lease rental expense which is that portion deemed to be interest.