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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 43
Chapter II
Part 3140 - PART 3140—LEASING IN SPECIAL TAR SAND AREAS
Subpart 3140 [§ 3140.1 - § 3140.70] - Subpart 3140—Conversion of Existing Oil and Gas Leases and Valid Claims Based on Mineral Locations
Subpart 3141 [§ 3141.1 - § 3141.70] - Subpart 3141—Leasing in Special Tar Sand Areas
Subpart 3142 [§ 3142.1 - § 3142.30] - Subpart 3142—Paying Quantities/Diligent Development for Combined Hydrocarbon and Tar Sand Leases
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