Components of Working Capital (Tables)

9 Months Ended

Sep. 30, 2018

Components Of Working Capital [Abstract]

Accounts Receivable, Net Table

A summary of accounts receivable, net is as follows:

thousands	September 30, 2018		December 31, 2017
Trade receivables, net	$	224,719	$	160,194
Other receivables, net	168		45
Total accounts receivable, net	$	224,887	$	160,239

Other Current Assets Table

A summary of other current assets is as follows:

thousands	September 30, 2018		December 31, 2017
Natural gas liquids inventory	$	11,212	$	10,788
Imbalance receivables	3,829		1,640
Prepaid insurance	3,203		2,955
Contract assets	2,748		—
Other	5,127		—
Total other current assets	$	26,119	$	15,383

Accrued Liabilities Table

A summary of accrued liabilities is as follows:

thousands	September 30, 2018		December 31, 2017
Accrued interest expense	$	54,556	$	40,646
Short-term asset retirement obligations (1)	42,872		2,304
Short-term remediation and reclamation obligations	833		833
Income taxes payable	247		2,495
Contract liabilities	8,031		—
Other	7,965		1,714
Total accrued liabilities	$	114,504	$	47,992

⁽¹⁾  As of September 30, 2018, includes $40.2 million of short-term liabilities incurred during the second quarter of 2018 related to the shutdowns at the Third Creek and Kitty Draw gathering systems. See Note 1 for further information.