Accrued Expenses

9 Months Ended

Sep. 30, 2013

Accrued Expenses

6. Accrued Expenses

Accrued expenses consisted of the following at September 30, 2013 and December 31, 2012 (in thousands):

	September 30, 2013		December 31, 2012
Salaries, wages, payroll taxes and benefits	$	44,100	$	55,430
Workers’ compensation liability		69,580		68,441
Property, sales, use and other taxes		12,023		9,749
Insurance, other than workers’ compensation		6,601		10,419
Accrued interest payable		14,527		7,664
Deferred revenue—current		—		1,523
Other		6,834		5,406
	$	153,665	$	158,632

Deferred revenue was recorded in the fourth quarter of 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 term of the pricing agreements, which have now expired. No deferred revenue was recognized in the three months ended September 30, 2013. Deferred revenue of approximately $1.5 million was recognized in the nine months ended September 30, 2013, related to these pricing agreements. Deferred revenue of approximately $1.8 million and $5.4 million was recognized in the three and nine months ended September 30, 2012, respectively, related to these pricing agreements.