Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2018

Accrued Liabilities [Abstract]

Accrued Liabilities

Accrued liabilities consisted of:

	June 30, 2018		December 31, 2017
	(In thousands)
Employee costs	$	12,359	$	19,521
Lease operating expenses	12,080		11,819
Taxes	6,997		3,404
Interest payable	6,581		6,745
Derivative settlements	2,550		—
Third-party credits	2,473		2,240
Other	6,024		4,794
Total accrued liabilities	$	49,064	$	48,523