Quarterly report [Sections 13 or 15(d)]

Oil and Gas Royalty Interests - Narrative (Details)

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Oil and Gas Royalty Interests - Narrative (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2025
USD ($)
a
Mar. 31, 2024
USD ($)
Dec. 31, 2024
Real Estate Properties [Line Items]      
Acquisition of royalty interests $ 3,546,000 $ 0  
Depletion expense $ 7,300,000 500,000  
Additional real estate acquisitions      
Real Estate Properties [Line Items]      
Net royalty interests (in acres) | a 177    
Acquisition of royalty interests $ 3,500,000 $ 0  
1/16th nonparticipating perpetual royalty interest      
Real Estate Properties [Line Items]      
Nonparticipating perpetual royalty interest rate (in percentage) 6.25%   6.25%
1/128th nonparticipating perpetual royalty interest      
Real Estate Properties [Line Items]      
Nonparticipating perpetual royalty interest rate (in percentage) 0.78125%   0.78125%