Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2013

Accounts Payable and Accrued Liabilities, Current [Abstract]

Accrued Liabilities

Accrued liabilities consisted of the following:

	September 30, 2013		December 31, 2012
	(In thousands)
Employee costs	$	23,944	$	24,632
Interest payable	17,747		6,568
Lease operating expenses	14,738		10,903
Taxes	11,563		7,308
Other	10,565		4,687
Total accrued liabilities	$	78,557	$	54,098