Acute Technological Services S-4 Registration of securities issued in business combination transactions

Exhibit 12.1

OIL STATES INTERNATIONAL, INC.

COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES

(DOLLARS IN THOUSANDS)

			For the
			six months
			ended			For the years ended December 31,
			June 30, 2013			2012			2011			2010			2009			2008
Earnings
	Income before income taxes		$	250,558		$	626,895		$	455,069		$	240,628		$	105,709		$	373,450
	Income from equity investees			766			(243	)		163			(239	)		(1,452	)		(4,035	)
	Income before income taxes before adjustment from equity investees			251,324			626,652			455,232			240,389			104,257			369,415
	Fixed charges			43,535			77,387			66,976			20,305			18,437			26,325
	Amortization of capitalized interest			537			1,021			667			132			115			110
	Distributed income of equity investees			-			3			15			96			-			1,052
	Capitalized interest			(534	)		(3,541	)		(5,348	)		(171	)		(51	)		-
	Noncontrolling interests in subs that have not incurred fixed charges			(739	)		(1,239	)		(969	)		(587	)		(498	)		(446	)
		Total earnings available for fixed charges	$	294,123		$	700,283		$	516,573		$	260,164		$	122,260		$	396,456
Fixed charges
	Interest expense		$	35,629		$	57,330		$	43,005		$	7,322		$	7,464		$	16,251
	Capitalized interest			534			3,541			5,348			171			51			-
	Amortization of debt discount			-			4,106			7,786			7,249			6,749			6,283
	Amortization of debt issue costs			4,041			7,301			6,497			1,703			1,053			1,051
	Interest component of rent			3,331			5,109			4,340			3,860			3,120			2,740
		Total fixed charges	$	43,535		$	77,387		$	66,976		$	20,305		$	18,437		$	26,325
Ratio of earnings to fixed charges				6.76			9.05			7.71			12.81			6.63			15.06