[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: 43CFR3180.0-5]

[Page 439]
 
                    TITLE 43--PUBLIC LANDS: INTERIOR
 
    CHAPTER II--BUREAU OF LAND MANAGEMENT, DEPARTMENT OF THE INTERIOR
 
PART 3180_ONSHORE OIL AND GAS UNIT AGREEMENTS: UNPROVEN AREAS--Table of 
Contents
 
        Subpart 3180_Onshore Oil and Gas Unit Agreements: General
 
Sec. 3180.0-5  Definitions.

    The following terms, as used in this part or in any unit agreement 
approved under the regulations in this part, shall have the meanings 
here indicated unless otherwise defined in such unit agreement:
    Federal lease. A lease issued under the Act of February 25, 1920, as 
amended (30 U.S.C. 181, et seq.); the Act of May 21, 1930 (30 U.S.C. 
351-359); the Act of August 7, 1947 (30 U.S.C. 351, et seq.); or the Act 
of November 16, 1981 (Pub. L. 97-98, 95 Stat. 1070).
    Participating area. That part of a unit area which is considered 
reasonably proven to be productive of unitized substances in paying 
quantities or which is necessary for unit operations and to which 
production is allocated in the manner prescribed in the unit agreement.
    Unit area. The area described in an agreement as constituting the 
land logically subject to exploration and/or development under such 
agreement.
    Unitized land. Those lands and formations within a unit area which 
are committed to an approved agreement or plan.
    Unitized substances. Deposits of oil and gas contained in the 
unitized land which are recoverable in paying quantities by operation 
under and pursuant to an agreement.
    Working interest. An interest held in unitized substances or in 
lands containing the same by virtue of a lease, operating agreement, fee 
title, or otherwise, under which, except as otherwise provided in the 
agreement, the owner of such interest is vested with the right to 
explore for, develop, and produce such substances. The rights delegated 
to the unit operator by the unit agreement are not regarded as a working 
interest.

[48 FR 26766, June 10, 1983. Redesignated and amended at 48 FR 36587, 
Aug. 12, 1983; 51 FR 34603, Sept. 30, 1986]