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Supplementary Information (Tables)
 12 Months Ended
Dec. 31, 2024
Notes Tables  
Oil and Gas, Capitalized Cost [Table Text Block]
   

As of December 31,

 

(Thousands of dollars)

  

2024

   

2023

 

Proved Developed oil and gas properties

   $ 773,330     $ 659,792  

Proved Undeveloped oil and gas properties

     —       —  

Total Capitalized Costs

     773,330       659,792  

Accumulated depreciation, depletion and valuation allowance

     (479,424

)

     (406,913 )

Net Capitalized Costs

   $ 293,906     $ 252,879  
Oil and Gas, Cost Incurred, Property Acquisition, Exploration, and Development [Table Text Block]
   

Years Ended December 31,

 

(Thousands of dollars)

  

2024

   

2023

 

Development Costs

   $ 117,424     $ 110,700  
Oil and Gas, Standardized Measure, Discounted Future Net Cash Flow [Table Text Block]
   

As of December 31,

 

(Thousands of dollars)

  

2024

   

2023

 

Future cash inflows

   $ 981,343     $ 1,219,605  

Future production costs

     (374,816

)

     (437,408 )

Future development costs

     (105,811

)

     (213,823 )

Future income tax expenses

     (105,150

)

     (119,359 )

Future Net Cash Flows

     395,566       449,015  

10% annual discount for estimated timing of cash flows

     (122,521

)

     (170,967 )

Standardized Measure of Discounted Future Net Cash Flows

   $ 273,045     $ 278,048  
Oil and Gas, Change in Standardized Measure, Discounted Future Net Cash Flow [Table Text Block]
   

Years Ended
December 31,

 

(Thousands of dollars)

  

2024

    

2023

 

Sales of oil and gas produced, net of production costs

   $ (223,042 )   $ (107,742 )

Net changes in prices and production costs

     (40,024 )     (98,132 )

Extensions, discoveries and improved recovery

     24,848       178,960  

Revisions of previous quantity estimates

     (39,149

)

     (3,877 )

Net change in development costs

     70,002       66,552  

Reserves sold

     (1,371

)

     (398 )

Accretion of discount

     27,805       24,454  

Net change in income taxes

     8,896       4,532  

Changes in production rates (timing) and other

     167,032       (30,836 )

Net change

     (5,003 )     33,512  

Standardized measure of discounted future net cash flow:

                

Beginning of year

     278,048       244,536  

End of year

   $ 273,045     $ 278,048  
Oil and Gas, Proved Reserve, Quantity [Table Text Block]
   

As of December 31,

 
   

2024

   

2023

 
   

Oil
(MBbls)

   

NGL’s
(MBbls)

   

Gas
(MMcf)

   

Oil
(MBbls)

   

NGLs
(MBbls)

   

Gas
(MMcf)

 

Proved Developed Reserves:

                                                

Beginning of year

     5,757       3,676       24,749       4,143       2,497       22,277  

Extensions, discoveries and improved recovery

     186       132       859       843       467       2,391  

Revisions of previous estimates

     (745

)

     (385

)

     (983 )     (1,101 )     (515 )     (4,796 )

Converted from undeveloped reserves

     4,854       4,509       20,791       3,028       1,833       9,030  

Production

     (2,556

)

     (1,284 )     (7,766 )     (1,144 )     (606 )     (4,127 )

End of year

     7,443       6,597       37,489       5,757       3,676       24,749  

Proved Undeveloped Reserves:

                                                

Beginning of year

     6,254       5,156       24,470       3,028       1,833       9,030  

Extensions, discoveries and improved recovery

     3,166       1,670       8,327       6,254       5,156       24,470  

Revisions of previous estimates

     (1,400 )     (647 )     (3,680 )     —       —       —  

Converted to developed reserves

     (4,854 )     (4,509 )     (20,791 )     (3,028 )     (1,833 )     (9,030 )

Reserves Sold

     —       —       —       —       —       —  

End of year

     3,166       1,670       8,326       6,254       5,156       24,470  

Total Proved Reserves at the End of the Year

     10,609       8,267       45,815       12,011       8,832       49,219  
Oil and Gas, Result of Operation, Producing Activity [Table Text Block]
   

Years Ended December 31,

 

(Thousands of dollars)

  

2024

   

2023

 

Revenue:

                

Oil and gas sales

   $ 223,042     $ 107,742  

Costs and Expenses:

                

Lease operating expenses

     59,853       39,004  

Depreciation, depletion and accretion

     77,229       31,660  

Income tax expense

     16,884       5,797  

Total Costs and Expenses

     153,966       76,461  

Results of Operations from Producing Activities (excluding corporate overhead and interest costs)

   $ 69,076     $ 31,281