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Natural Gas Mineral Interests - Summary of Natural Gas and Oil Properties (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Mineral Properties, Net [Abstract]      
Proved properties $ 347,838 $ 327,342 $ 110,001
Unproved properties 192,581 176,240 63,932
Natural gas and oil mineral interests, gross 540,419 503,582 173,933
Accumulated depletion (62,786) (42,996) (18,849)
Natural gas and oil mineral interests, net $ 477,633 $ 460,586 $ 155,084