Segment Information (Tables)

3 Months Ended

Mar. 31, 2020

Segment Information [Abstract]

Segment Activity

	Three Months Ended March 31, 2020
(in thousands)	Gabon		Equatorial Guinea		Corporate and Other		Total
Revenues-crude oil and natural gas sales	$	18,389	$	—	$	—	$	18,389
Depreciation, depletion and amortization		3,072		—		31		3,103
Impairment of proved crude oil and natural gas properties		30,625		—		—		30,625
Bad debt recovery and other		810		—		—		810
Operating income (loss)		(26,283)		(125)		(275)		(26,683)
Derivative instruments gain (loss), net		—		—		7,339		7,339
Income tax expense		22,039		—		11,439		33,478
Additions to crude oil and natural gas properties and equipment – accrual		9,421		—		—		9,421

	Three Months Ended March 31, 2019
(in thousands)	Gabon		Equatorial Guinea		Corporate and Other		Total
Revenues-crude oil and natural gas sales	$	19,765	$	—	$	—	$	19,765
Depreciation, depletion and amortization		1,479		—		74		1,553
Impairment of proved crude oil and natural gas properties		—		—		—		—
Bad debt recovery and other		(29)		—		—		(29)
Operating income (loss)		9,530		(186)		(3,798)		5,546
Derivative instruments gain (loss), net		—		—		(1,912)		(1,912)
Income tax expense		2,491		10		252		2,753
Additions to crude oil and natural gas properties and equipment – accrual		681		(187)		191		685

Long-lived Assets From Continuing Operations

(in thousands)	Gabon		Equatorial Guinea		Corporate and Other		Total
Long-lived assets from continuing operations:
As of March 31, 2020	$	33,202	$	10,000	$	298	$	43,500
As of December 31, 2019	$	57,930	$	10,000	$	328	$	68,258

(in thousands)	Gabon		Equatorial Guinea		Corporate and Other		Total
Total assets from continuing operations:
As of March 31, 2020	$	117,173	$	10,112	$	41,407	$	168,692
As of December 31, 2019	$	151,686	$	10,087	$	49,764	$	211,537