Supplemental Disclosures (Tables)

6 Months Ended

Jun. 30, 2014

Supplemental Disclosures [Abstract]

Summary of current accrued liabilities

Accrued Liabilities

The following table summarizes the Company’s current accrued liabilities at June 30, 2014 and December 31, 2013 (in thousands).

	June 30,   2014		December 31, 2013
Accrued evaluated and unproved and unevaluated property costs	$	86,066	$	52,605
Accrued support equipment and facilities costs	293		—
Accrued cost to issue equity	87		—
Accrued stock-based compensation	109		56
Accrued lease operating expenses	8,751		6,251
Accrued interest on borrowings under Credit Agreement	95		141
Accrued asset retirement obligations	477		175
Accrued partners’ share of joint interest charges	4,109		1,173
Other	5,142		3,586
Total accrued liabilities	$	105,129	$	63,987

Supplemental disclosures of cash flow information

The following table provides supplemental disclosures of cash flow information for the six months ended June 30, 2014 and 2013 (in thousands).

	Six Months Ended   June 30,
	2014		2013
Cash paid for interest expense, net of amounts capitalized	$	3,058	$	1,817
Asset retirement obligations related to mineral properties	2,343		751
Asset retirement obligations related to support equipment and facilities	132		4
Increase (decrease) in liabilities for oil and natural gas properties capital expenditures	34,444		(6,859		)
Increase (decrease) in liabilities for support equipment and facilities	293		(914		)
Increase in liabilities for accrued cost to issue equity	86		—
Issuance of restricted stock units for Board and advisor services	197		87
Issuance of common stock for advisor services	10		17
Stock-based compensation expense recognized as liability	1,200		284
Transfer of inventory from oil and natural gas properties	133		191