U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
These regulations are issued under the authority of the Mineral Lands Leasing Act of February 25, 1920 (30 U.S.C. 181 et seq.), the Mineral Leasing Act for Acquired Lands (30 U.S.C. 351 et seq.), and the Combined Hydrocarbon Leasing Act of 1981 (Pub. L. 97-78).