43 C.F.R. § 3140.3-1 Conversion applications.
Title 43 - Public Lands: Interior
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.
Title 43: Public Lands: Interior
PART 3140—LEASING IN SPECIAL TAR SAND AREAS
Subpart 3140—Conversion of Existing Oil and Gas Leases and Valid Claims Based on Mineral Locations
§ 3140.3-1 Conversion applications.
