Parker Drilling Co Of Oklahoma S-4/A Registration of securities issued in business combination transactions (amended)

Exhibit 12.1

Parker Drilling Company

Computation of Ratio of Earnings to Fixed Charges

(in thousands, except ratio amounts)

	Six Months Ended June 30, 2012			Fiscal Year Ended December 31,
				2011			2010			2009			2008			2007
Pretax Income		70,935			(65,218	)		11,752			9,827			34,402			141,800
Fixed Charges		22,361			41,865			40,294			35,426			29,620			31,317
Amortization of Capitalized Interest		646			1,409			1,819			1,975			1,712			799
Capitalized Interest		(5,399	)		(19,271	)		(13,489	)		(5,976	)		(5,087	)		(6,159	)
Earnings Before Income Tax & Fixed Charges		88,543			(41,215	)		40,376			41,252			60,647			167,757
Interest Expense		16,962			22,594			26,805			29,450			24,533			25,157
Capitalized Interest		5,399			19,271			13,489			5,976			5,087			6,159
Total Fixed Charges		22,361			41,865			40,294			35,426			29,620			31,316
Ratio of Earnings to Fixed Charges		4.0x			(1	)		1.0x			1.2x			2.0x			5.4x

(1) For the year ended December 31, 2011, earnings were deficient to cover fixed charges by $41.2 million, which was primarily due to a pre-tax, non-cash charge to earnings of $170.0 million related to the impairment of our two Alaska rigs.