Accrued Expenses

12 Months Ended

Dec. 31, 2013

5.	Accrued Expenses

Accrued expenses consisted of the following at December 31, 2013 and 2012 (in thousands):


	2013		2012
Salaries, wages, payroll taxes and benefits	$	45,836	$	55,430
Workers’ compensation liability		74,975		68,441
Property, sales, use and other taxes		12,367		9,749
Insurance, other than workers’ compensation		10,129		10,419
Accrued interest payable		7,604		7,664
Deferred revenue — current		—		1,523
Other		9,546		5,406

	$	160,457	$	158,632

Deferred revenue was recorded in 2010 in the purchase price allocation associated with the Company’s acquisition of a pressure pumping business. The deferred revenue related to out-of-market pricing agreements that were in place at the acquired business at the time of the acquisition. The deferred revenue was recognized as pressure pumping revenue over the remaining term of the pricing agreements, which have now expired. Deferred revenue of approximately $1.5 million, $7.2 million and $8.4 million was recognized in the years ended December 31, 2013, 2012 and 2011, respectively, related to these pricing agreements.