Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Segment Information - Assets from Continuing Operations (Details)

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Note 4 - Segment Information - Assets from Continuing Operations (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Long-lived assets from continuing operations $ 457,419 $ 459,786
Total assets from continuing operations 809,147 823,216
Operating Segments [Member] | Gabon Segment [Member]    
Long-lived assets from continuing operations 166,596 171,787
Total assets from continuing operations 302,389 309,394
Operating Segments [Member] | Egypt [Member]    
Long-lived assets from continuing operations 167,215 171,224
Total assets from continuing operations 253,656 263,015
Operating Segments [Member] | Canada [Member]    
Long-lived assets from continuing operations 111,313 105,189
Total assets from continuing operations 120,598 114,215
Operating Segments [Member] | Equatorial Guinea Segment [Member]    
Long-lived assets from continuing operations 10,000 10,000
Total assets from continuing operations 11,365 11,327
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]    
Long-lived assets from continuing operations 2,295 1,586
Total assets from continuing operations $ 121,139 $ 125,265