[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: 43CFR3141.0-5] [Page 400] 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. 3141.0-5 Definitions. As used in this subpart, the term: (a) Combined hydrocarbon lease means a lease issued in a Special Tar Sand Area for the removal of any gas and nongaseous hydrocarbon substance other than coal, oil shale or gilsonite. (b) Special Tar Sand Area means an area designated by the Department of the Interior's Orders of November 20, 1980 (45 FR 76800), and January 21, 1981 (46 FR 6077), and referred to in those orders as Designated Tar Sand Areas, as containing substantial deposits of tar and sand. (c) Tar sand means any consolidated or unconsolidated rock (other than coal, oil shale or gilsonite) that either: (1) Contains a hydrocarbonaceous material with a gas-free viscosity, at original reservoir temperature greater than 10,000 centipoise, or (2) contains a hydrocarbonaceous material and is produced by mining or quarrying. (d) Oil means all nongaseous hydrocarbon substances other than those substances leasable as coal, oil shale or gilsonite (including all vein- type solid hydrocarbons).