43 CFR § 3103.3-2 - Minimum royalties.
(a) A minimum royalty shall be payable at the expiration of each lease year beginning on or after a discovery of oil or gas in paying quantities on the lands leased, except that on unitized leases the minimum royalty shall be payable only on the participating acreage, at the following rates:
(1) On leases issued on or after August 8, 1946, and on those issued prior thereto if the lessee files an election under section 15 of the Act of August 8, 1946, a minimum royalty of $1 per acre or fraction thereof in lieu of rental, except as provided in paragraph (a)(2) of this section; and
(2) On leases issued from offers filed after December 22, 1987, and on competitive leases issued from successful bids placed at oral or internet-based auctions conducted after December 22, 1987, a minimum royalty in lieu of rental of not less than the amount of rental which otherwise would be required for that lease year.
(b) Minimum royalties shall not be prorated for any lands in which the United States owns a fractional interest but shall be payable on the full acreage of the lease.
(c) Minimum royalties and rentals on non-participating acreage shall be payable to the Service.
(d) The minimum royalty provisions of this section shall be applicable to leases reinstated under § 3108.2–3 of this title and leases issued under § 3108.2–4 of this title.