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Note 10 - Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2024
Notes Tables  
Derivative Instruments, Gain (Loss) [Table Text Block]
       

Amount of gain/loss
recognized in income

 

(Thousands of dollars)

 

Location of gain/loss recognized in

income

 

2024

   

2023

 

Derivatives not designated as cash-flow hedge instruments:

                   

Natural gas commodity contracts

 

Gain on derivative instruments, net

    0       235  

Crude oil commodity contracts

 

Gain on derivative instruments, net

    0       179  
        $ 0     $ 414