16 U.S.C. § 410g — Rules and regulations governing reservation rights

Landowners who kept a reservation under subsection (1) of section 410e of this title must exercise that reservation subject to reasonable rules the Secretary may set to protect the park. But those rules must still let owners explore for, develop, extract, and remove oil, gas, and minerals from the park area, following sound conservation practices — meaning the Secretary's rules can regulate how the mineral activity happens, but cannot be used to stop it outright as long as the owner follows sound conservation methods. All such operations must follow whatever regulations the Secretary sets to protect the park's land and areas for park purposes.