Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (52,800)	$ 6,501
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
(Income) loss from discontinued operations	63	(5,671)
Depreciation, depletion and amortization	3,103	1,553
Impairment of proved crude oil and natural gas properties	30,625
Other amortization	60	60
Deferred taxes	35,638	1,742
Unrealized foreign exchange gain	(22)	(12)
Stock-based compensation	(2,569)	1,723
Derivatives instruments (gain) loss	(7,339)	1,912
Cash settlements received on matured derivative contracts, net	718	1,131
Bad debt (recovery) expense and other	810	(29)
Other operating loss, net	31	37
Operational expenses associated with equipment and other	578	(109)
Change in operating assets and liabilities:
Trade receivables	14,335	2,871
Accounts with joint venture owners	13,812	4,986
Other receivables	(755)	311
Crude oil inventory	(2,793)	(489)
Prepayments and other	(993)	(202)
Value added tax and other receivables	(370)	738
Accounts payable	(1,130)	(3,923)
Foreign taxes payable	(1,284)	1,037
Accrued liabilities and other	(2,073)	(581)
Net cash provided by continuing operating activities	27,645	13,586
Net cash used in discontinued operating activities	(18)	(101)
Net cash provided by operating activities	27,627	13,485
CASH FLOWS FROM INVESTING ACTIVITIES:
Property and equipment expenditures	(11,980)	(788)
Net cash used in continuing investing activities	(11,980)	(788)
Net cash used in discontinued investing activities
Net cash used in investing activities	(11,980)	(788)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from the issuances of common stock		47
Treasury shares	(652)	(105)
Net cash used in continuing financing activities	(652)	(58)
Net cash used in discontinued financing activities
Net cash used in financing activities	(652)	(58)
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	14,995	12,639
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF PERIOD	59,124	46,655
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	74,119	59,294
Supplemental disclosure of cash flow information:
Interest expense paid in cash
Income taxes paid in cash
Income taxes paid in-kind with crude oil
Supplemental disclosure of non-cash investing and financing activities:
Property and equipment additions incurred but not paid at end of period	10,991	2,124
Recognition of right-of-use operating lease assets and liabilities		$ 38,934
Asset retirement obligations	$ 359