A mineral lease issued under this rule grants the lessee the right to enter the premises for mining purposes, together with the right to use and occupy so much of the premises as may be necessary or convenient to carry out such mining purposes. A mineral lease does not authorize the lessee to process or stockpile minerals, waste rock, ore, overburden or other materials obtained from off-lease sources. Therefore, unless authorized under a separate commercial lease issued by the commissioner, no minerals, waste rock, ore, overburden or other materials obtained from off-lease sources shall be processed or stockpiled on the trust surface estate covered by a mineral lease.
N.M. Admin. Code § 19.2.2.35