Valuation And Qualifying Accounts

12 Months Ended

Dec. 31, 2013

Valuation And Qualifying Accounts

PATTERSON-UTI ENERGY, INC. AND SUBSIDIARIES

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS

Description	Beginning Balance		Charged to Costs and Expenses		Deductions(1)			Ending Balance
	(In thousands)
Year Ended December 31, 2013
Deducted from asset accounts:
Allowance for doubtful accounts	$	3,513	$	0	$	161		$	3,674
Year Ended December 31, 2012
Deducted from asset accounts:
Allowance for doubtful accounts	$	4,887	$	1,100	$	(2,474	)	$	3,513
Year Ended December 31, 2011
Deducted from asset accounts:
Allowance for doubtful accounts	$	5,114	$	0	$	(227	)	$	4,887

(1) Consists of uncollectible accounts (written off) or recovered.