Supplemental Disclosures (Tables)

12 Months Ended

Dec. 31, 2017

Supplemental Disclosures [Abstract]

Summary of current accrued liabilities

The following table summarizes the Company’s current accrued liabilities at December 31, 2017 and 2016 (in thousands).

	December 31,
	2017		2016
Accrued evaluated and unproved and unevaluated property costs	$	105,347	$	54,273
Accrued support equipment and facilities costs	14,823		15,139
Accrued lease operating expenses	12,611		16,009
Accrued interest on debt	8,345		6,541
Accrued asset retirement obligations	1,176		915
Accrued partners’ share of joint interest charges	27,628		5,572
Other	4,418		3,011
Total accrued liabilities	$	174,348	$	101,460

Supplemental disclosures of cash flow information

The following table provides supplemental disclosures of cash flow information for the years ended December 31, 2017, 2016 and 2015 (in thousands).

	Year Ended December 31,
	2017			2016			2015
Cash paid for income taxes	$	—		$	2,895		$	506
Cash paid for interest expense, net of amounts capitalized	$	32,760		$	27,464		$	16,154
Increase in asset retirement obligations related to mineral properties	$	4,385		$	3,817		$	2,510
(Decrease) increase in asset retirement obligations related to support equipment and facilities	$	(60	)	$	222		$	383
Increase (decrease) in liabilities for oil and natural gas properties capital expenditures	$	48,929		$	1,775		$	(30,683	)
(Decrease) increase in liabilities for support equipment and facilities	$	(955	)	$	(588	)	$	12,076
Issuance of restricted stock units for director and advisor services	$	—		$	992		$	584
Stock-based compensation expense recognized as liability	$	362		$	569		$	79
(Decrease) increase in liabilities for accrued cost to issue equity	$	(343	)	$	343		$	—
Transfer of inventory (to) from oil and natural gas properties	$	(374	)	$	395		$	615
Transfer of inventory to midstream and other property and equipment	$	(317	)	$	—		$	—