The lessee shall take any Federal oil or gas for which no acceptable bids are received, as determined by the Secretary, and which is not transferred pursuant to subsection (a)(3) of this section, and shall pay to the United States a cash amount equal to the regulated price, or, if no regulated price applies, the fair market value of the oil or gas so obtained.
Nothing in this section shall prohibit the right of the United States to purchase any oil or gas produced on the outer Continental Shelf as provided by section 1341(b) of this title.