Right of Government to establish reservations or grant rights.
Article 18
ART. 18. Right of Government to establish reservations or grant rights.—Concessions granted under this Act are subject to the right of the Government to establish reservations other than petroleum reservations, to grant mining rights, permits, leases, and concessions in respect of substances other than petroleum, and to grant rights other than mining rights in, on, or under any of the lands covered by the concession granted under this Act, provided that the rights of the petroleum concessionaire to search, prospect, and drill for, produce, extract, transport, store, process, and treat petroleum on, under, and from, said lands, and the other rights, granted to him under this Act are not impaired or unreasonably interfered with.