Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Payables And Accruals [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities consist of the following:

	Year Ended December 31,
In thousands	2017		2016
Bonus payable	$	2,250	$	2,155
Payroll payable		18		1
Accrued interest - 8.750% Senior Notes		2,768		2,924
Accrued interest - other		1,015		523
Accrued rent		156		298
Accrued well costs		8,386		3,366
Accrued severance, property, federal and franchise taxes		115		431
Accrued federal income tax		1,147		—
Other		728		249
Total accrued liabilities	$	16,583	$	9,947