Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Revenue - Revenues from Contracts with Customers and Other Items Not Associated with Customer Contracts (Details)

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Note 6 - Revenue - Revenues from Contracts with Customers and Other Items Not Associated with Customer Contracts (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Crude oil and natural gas sales $ 116,269 $ 78,097 $ 305,912 $ 257,738
Net revenues 116,269 78,097 305,912 257,738
Crude oil, natural gas and natural gas liquids sales 116,269 78,097 305,912 257,738
EGYPT        
Royalties (37,944)   (86,176)  
Crude oil and natural gas sales 50,307   106,399  
Gross sales 88,748   193,570  
Royalties (37,944)   (86,176)  
Selling costs (497)   (995)  
Net revenues 50,307   106,399  
Revenue 88,748   193,570  
Crude oil, natural gas and natural gas liquids sales 50,307   106,399  
CANADA        
Royalties (2,206)   (4,304)  
Crude oil and natural gas sales 8,687   27,577  
Royalties (2,206)   (4,304)  
Net revenues 8,687   27,577  
Crude oil, natural gas and natural gas liquids sales 8,687   27,577  
Crude Oil Sales and Purchase Agreements [Member]        
Sales under the COSPA or COSMA 64,100 87,661 194,179 289,290
Revenue 64,100 87,661 194,179 289,290
Crude Oil [Member] | CANADA        
Gross sales 7,832   22,811  
Revenue 7,832   22,811  
Carried Interest Recoupment [Member]        
Other items reported in revenue not associated with customer contracts 1,378 2,360 3,590 5,843
Gas [Member] | CANADA        
Gross sales 988   2,649  
Revenue 988   2,649  
Oil and Gas [Member]        
Royalties (8,203) (11,924) (25,833) (37,395)
Crude oil and natural gas sales 57,275 78,097 171,936 257,738
Royalties (8,203) (11,924) (25,833) (37,395)
Net revenues 57,275 78,097 171,936 257,738
Crude oil, natural gas and natural gas liquids sales 57,275 $ 78,097 171,936 $ 257,738
Natural Gas Liquids [Member] | CANADA        
Sales under the COSPA or COSMA 2,073   6,421  
Revenue $ 2,073   $ 6,421