Crude Oil and Natural Gas Properties and Equipment (Tables)

9 Months Ended

Sep. 30, 2020

Crude Oil and Natural Gas Properties and Equipment [Abstract]

Schedule of Crude Oil and Natural Gas Properties and Equipment

	As of September 30, 2020		As of December 31, 2019
	(in thousands)
Crude oil and natural gas properties and equipment - successful efforts method:
Wells, platforms and other production facilities	$	441,915	$	422,651
Work-in-progress		—		7,378
Undeveloped acreage		21,476		23,771
Equipment and other		10,181		11,157
		473,572		464,957
Accumulated depreciation, depletion, amortization and impairment		(434,727)		(396,699)
Net crude oil and natural gas properties, equipment and other	$	38,845	$	68,258