Accrued Liabilities

12 Months Ended

Dec. 31, 2018

Accrued Liabilities

Accrued Liabilities

(6) Accrued Liabilities

Accrued liabilities as of December 31, 2017 and 2018 consisted of the following items (in thousands):

	December 31, 2017		December 31, 2018
Capital expenditures	$	155,300		113,237
Gathering, compression, processing, and transportation expenses		88,850		148,032
Marketing expenses		59,049		67,082
Interest expense		40,861		43,444
Other		99,165		93,275
	$	443,225		465,070