25 C.F.R. § 213.5 Term of oil and gas leases.
Title 25 - Indians
Oil and gas mining leases which require the approval of the Secretary of the Interior may be made for periods of 10 years from the date of approval of lease by the Secretary of the Interior and as much longer thereafter as oil and/or gas is produced in paying quantities.
Title 25: Indians
PART 213—LEASING OF RESTRICTED LANDS OF MEMBERS OF FIVE CIVILIZED TRIBES, OKLAHOMA, FOR MINING
How To Acquire Leases
§ 213.5 Term of oil and gas leases.

