Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2017

Accrued Liabilities

Schedule of accrued liabilities

Accrued liabilities as of December 31, 2016 and September 30, 2017 consisted of the following items (in thousands):

	December 31, 2016		September 30, 2017
Capital expenditures	$	35,608		42,883
Operating expenses		14,582		24,707
Interest		10,613		1,950
Other		838		992
	$	61,641		70,532