Quarterly report [Sections 13 or 15(d)]

Oil and Gas Royalty Interests - Royalty Interests (Details)

v3.25.3
Oil and Gas Royalty Interests - Royalty Interests (Details)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2025
USD ($)
a
Dec. 31, 2024
USD ($)
a
Oil and gas royalty interests:    
Royalty interests acquired, at cost $ 446,739 $ 447,071
Total royalty interests 446,739 447,071
Less: accumulated depletion (40,822) (14,670)
Royalty interests, net $ 405,917 $ 432,401
Gross royalty interests (in acres) | a 5,308 5,308
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%
Gross royalty interests (in acres) | a 185,369 185,369
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%
Royalty interests in acres    
Oil and gas royalty interests:    
Net royalty interest acquired (in acres) | a 16,074 15,897