43 U.S. Code § 1353 - Federal purchase and disposition of oil and gas
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.
 So in original. Probably should be “may”.
 See References in Text note below.
The Emergency Petroleum Allocation Act of 1973, referred to in subsec. (e)(1)(A), is Pub. L. 93–159, Nov. 27, 1973, 87 Stat. 628, as amended, which was classified generally to chapter 16A (§ 751 et seq.) of Title 15, Commerce and Trade, and was omitted from the Code pursuant to section 760g of Title 15, which provided for the expiration of the President’s authority under that chapter on Sept. 30, 1981.
The Natural Gas Act, referred to in subsec. (e)(1)(B), is act June 21, 1938, ch. 556, 52 Stat. 821, as amended, which is classified generally to chapter 15B (§ 717 et seq.) of Title 15. For complete classification of that Act to the Code, see section 717w of Title 15 and Tables.
Functions vested in Secretary of Energy and Department of Energy under or with respect to subsec. (b)(2), (3) of this section, transferred to, and vested in, Secretary of the Interior, by section 100 of Pub. L. 97–257, 96 Stat. 841, set out as a note under section 7152 of Title 42, The Public Health and Welfare.