43 C.F.R. § 3211.14 Will I always pay rent on my lease?
Title 43 - Public Lands: Interior
You are required to pay rent only until you achieve production in commercial quantities. At that time you begin paying royalties instead.
Title 43: Public Lands: Interior
PART 3200—GEOTHERMAL RESOURCE LEASING
Subpart 3211—Fees, Rent, and Royalties
§ 3211.14 Will I always pay rent on my lease?