Quarterly report pursuant to Section 13 or 15(d)

Dispositions (Summarized Results of Discontinued Operations) (Details)

v3.20.2
Dispositions (Summarized Results of Discontinued Operations) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Mar. 31, 2019
Sep. 30, 2020
Sep. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Income (loss) from discontinued operations $ 11 $ (61)   $ (41) $ 5,448
Discontinued Operations [Member] | Joint Operating With Republic Of Angola [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Gain on settlement of drilling obligation         (7,193)
General and administrative expense (14) 77   47 297
Total operating costs, expenses and (recovery) (14) 77   47 (6,896)
Operating income (loss) 14 (77)   (47) 6,896
Other, net       (5)  
Total other expense       (5)  
Income (loss) from discontinued operations before income taxes 14 (77)   (52) 6,896
Income tax expense (benefit) 3 (16)   (11) 1,448
Income (loss) from discontinued operations $ 11 $ (61) $ 5,700 $ (41) $ 5,448