Executive Order 6016—To Authorize Oil and Gas Permits and Leases on Withdrawn Oil-Shale Lands
Upon recommendation of the Secretary of the Interior, Executive Order No. 5327 of April 15, 1930, withdrawing certain lands for purposes of investigation, examination, and classification, is hereby modified to the extent of authorizing him to issue oil and gas permits and leases under the general leasing act of February 25, 1920 (41 Stat. 437-451), for any of the lands withdrawn by said order.
The White House,
February 6, 1933.
Herbert Hoover, Executive Order 6016—To Authorize Oil and Gas Permits and Leases on Withdrawn Oil-Shale Lands Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/361567