8. The mining rights conferred by the following titles are immovable real rights: — claims;
— mining exploration licences;
— mining leases;
— mining concessions;
— seabed exploration licences;
— seabed mining leases;
— exploration licences for surface mineral substances;
— leases to mine surface mineral substances;
— exploration licences for petroleum and natural gas;
— exploration licences for brine;
— exploration licences for underground reservoirs;
— leases to produce petroleum and natural gas;
— leases to produce brine;
— leases to operate an underground reservoir.