Quarterly report pursuant to Section 13 or 15(d)

Oil and Gas Royalty Interests - Royalty Interests (Details)

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Oil and Gas Royalty Interests - Royalty Interests (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Mar. 31, 2024
Jun. 30, 2024
Dec. 31, 2023
Oil and gas royalty interests:      
Royalty interests acquired, at cost   $ 51,494 $ 51,494
Total royalty interests   51,494 51,494
Less: accumulated depletion   (5,911) (4,885)
Royalty interests, net   45,583 46,609
1/16th nonparticipating perpetual royalty interest      
Oil and gas royalty interests:      
1/16th nonparticipating perpetual royalty interests   $ 0 0
Nonparticipating perpetual royalty interest rate (in percentage) 6.25% 6.25%  
1/128th nonparticipating perpetual royalty interest      
Oil and gas royalty interests:      
1/128th nonparticipating perpetual royalty interests   $ 0 $ 0
Nonparticipating perpetual royalty interest rate (in percentage) 0.78125% 0.78125%