[Code of Federal Regulations] [Title 43, Volume 2] [Revised as of October 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 43CFR3140.4-1] [Page 410] TITLE 43--PUBLIC LANDS: INTERIOR CHAPTER II--BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR PART 3140_LEASING IN SPECIAL TAR SAND AREAS--Table of Contents Subpart 3140_Conversion of Existing Oil and Gas Leases and Valid Claims Based on Mineral Locations Sec. 3140.4-1 Approval of plan of operations (and unit and operating agreements). (a) The owner of an oil and gas lease, or the owner of a valid claim based on a mineral location shall have such lease or claim converted to a combined hydrocarbon lease when the plan of operations, filed under Sec. 3140.2 of this title, is deemed acceptable and is approved by the authorized officer. (b) The conversion of a lease within a unit of the National Park System shall be approved only with the consent of the Regional Director of the National Park Service in accordance with Sec. 3140.7 of this title. (c) A plan of operations may not be approved in part but may be approved where it contains an appropriately staged plan of exploration and development operations. [47 FR 22478, May 24, 1982, as amended at 55 FR 12351, Apr. 3, 1990]