CFR > Title 43 - Public Lands: Interior > SUBTITLE B—Regulations Relating to Public Lands > CHAPTER II—BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR (parts 1000 to 9260) > SUBCHAPTER C—MINERALS MANAGEMENT (3000) (parts 3000 to 3871) > PART 3140—LEASING IN SPECIAL TAR SAND AREAS > SUBPART 3140—Conversion of Existing Oil and Gas Leases and Valid Claims Based on Mineral Locations (§3140.0-1 to §3140.7) > 3140.3-1—Conversion applications.

3140.3-1—Conversion applications.

A plan of operations to convert an existing oil and gas lease or valid claim based on a mineral location to a combined hydrocarbon lease shall be filed on or before November 15, 1983, or prior to the expiration of the oil and gas lease, whichever is earlier, except as provided in § 3140.1-2 of this title.