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Note 2 - Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2026
Notes Tables  
Schedule of Partneship's Receivables [Table Text Block]
  

In Thousands

 
  

As of

 
  

March 31, 2026

  

December 31, 2025

  

December 31, 2024

 

Royalty Properties receivable

 $26,791  $13,810  $19,120 

Other

  58   158   121 

Accounts receivable

  26,849   13,968   19,241 

Net profits interest receivable - related party

  19,042   2,513   5,544 

Total Receivables

 $45,891  $16,481  $24,785 
Disaggregation of Revenue [Table Text Block]
  

In Thousands

 
  Three Months Ended 
  March 31, 
  

2026

  

2025

 

Oil sales (1)

 $36,638  $32,622 

Natural gas sales

  4,327   5,208 

Total Royalties operating revenue

 $40,965  $37,830