[Code of Federal Regulations] [Title 43, Volume 2] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 43CFR3141.5-2] [Page 403] TITLE 43--PUBLIC LANDS: INTERIOR CHAPTER II--BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR PART 3140_COMBINED HYDROCARBON LEASING--Table of Contents Subpart 3141_Competitive Leasing in Special Tar Sand Areas Sec. 3141.5-2 Term of lease. Combined hydrocarbon leases shall have a primary term of 10 years and shall remain in effect so long thereafter as oil or gas is produced in paying quantities.