30 U.S. Code § 192 - Payment of royalties in oil or gas; sale of such oil or gas
All royalty accruing to the United States under any oil or gas lease or permit under this chapter on demand of the Secretary of the Interior shall be paid in oil or gas.
Upon granting any oil or gas lease under this chapter, and from time to time thereafter during said lease, the Secretary of the Interior shall, except whenever in his judgment it is desirable to retain the same for the use of the United States, offer for sale for such period as he may determine, upon notice and advertisement on sealed bids or at public auction, all royalty oil and gas accruing or reserved to the United States under such lease. Such advertisement and sale shall reserve to the Secretary of the Interior the right to reject all bids whenever within his judgment the interest of the United States demands; and in cases where no satisfactory bid is received or where the accepted bidder fails to complete the purchase, or where the Secretary of the Interior shall determine that it is unwise in the public interest to accept the offer of the highest bidder, the Secretary of the Interior, within his discretion, may readvertise such royalty for sale, or sell at private sale at not less than the market price for such period, or accept the value thereof from the lessee:
1946—Act July 13, 1946, inserted first two provisos which were enacted in order to assist small business enterprise by encouraging the operation of oil refineries not having an adequate supply of crude oil.
Payment of royalties from mineral leases on submerged lands of outer Continental Shelf, see section 1337 of Title 43, Public Lands.