Parker Drilling Co Of Oklahoma S-3ASR Automatic shelf registration

EXHIBIT 12.1

PARKER DRILLING COMPANY
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
(Dollar amounts in thousands)

	For the 3 Mo. Ended
	March 31,						Year Ended December 31,
	2007			2006			2006			2005			2004			2003			2002
Income (loss) from continuing operations before income taxes, minority interest and income (loss) from equity investees	$	55,103		$	26,918		$	117,664		$	68,323		$	(34,973	)	$	(36,379	)	$	(19,551	)
Plus fixed charges:
Interest expense on indebtedness		5,890			8,784			29,686			40,674			46,545			51,502			50,384
Capitalized interest		1,539			341			3,658
Amortization of borrowing expenses		440			317			1,912			1,439			3,823			2,288			2,025
Amortization of capitalized interest		128			118			471			481			507			530			528
Rental expense under operating leases deemed to be representative of the interest factor		426			426			1,705			1,636			1,376			1,105			1,046
Adjusted income (loss) from continuing operations	$	63,526		$	36,904		$	155,096		$	112,553		$	17,278		$	19,046		$	34,432
Fixed charges		8,295			9,527			36,961			43,749			51,744			54,895			53,572
Surplus (deficiency) of earnings to cover fixed charges	$	55,231		$	27,377		$	121,904		$	68,804		$	(34,466	)	$	(35,849	)	$	(19,140	)
Ratio of earnings to fixed charges		7.7	x		3.9	x		4.2	x		2.6	x		0.3	x		0.3	x		0.6	x
		7.65			3.87			4.19			2.56			0.33			0.35			0.64

PARKER DRILLING COMPANY
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
(Dollar amounts in thousands)

	Pro Forma
	For the 3 Mo. Ended March 31,		Year Ended December 31,
	2007		2006
Income (loss) from continuing operations before income taxes, minority interest and income (loss) from equity investees	$	56,061	$	121,433
Plus fixed charges:
Interest expense on indebtedness		4,265		23,410
Capitalized interest		1,539		3,658
Amortization of borrowing expenses		542		1,689
Amortization of capitalized interest		230		471
Rental expense under operating leases deemed to be representative of the interest factor		426		1,705
Adjusted income (loss) from continuing operations	$	63,064	$	152,366
Fixed charges		6,773		30,462
Surplus (deficiency) of earnings to cover fixed charges	$	56,291	$	121,904
Ratio of earnings to fixed charges		9.3x		5.0x