Change in Unit Operator ______ Unit Area, County of ____________, State of ______________, No. __. This indenture, dated as of the ____________ day of ______________, 19____, by and between ____________________ hereinafter designated as “First Party,” and __________________ hereinafter designated as “Second Party.”

Witnesseth: Whereas under the provisions of the Act of February 25, 1920, 41 Stat. 437 30 U.S.C. secs. 181, et seq., as amended by the Act of August 8, 1946, 60 Stat. 950, the Department of the Interior, on the ____________ day of ______________, 19____, approved a unit agreement for the ______ Unit Area, wherein the First Party is designated as Unit Operator; and

Whereas the First Party desires to transfer, assign, release, and quitclaim, and the Second Party desires to assume all the rights, duties and obligations of Unit Operator under the unit agreement; and

Whereas for sufficient and valuable consideration, the receipt whereof is hereby acknowledged, the First Party has transferred, conveyed, and assigned all his/its rights under certain operating agreements involving lands within the area set forth in said unit agreement unto the Second Party;

Now, therefore, in consideration of the premises hereinbefore set forth, the First Party does hereby transfer, assign, release, and quitclaim unto Second Party all of First Party's rights, duties, and obligations as Unit Operator under said unit agreement; and

Second Party hereby accepts this assignment and hereby covenants and agrees to fulfill the duties and assume the obligations of Unit Operator under and pursuant to all the terms of said unit agreement to the full extent set forth in this assignment, effective upon approval of this indenture by the (Name and Title of authorized officer, BLM); said unit agreement being hereby incorporated herein by reference and made a part hereof as fully and effectively as though said unit agreement were expressly set forth in this instrument.

In witness whereof, the parties hereto have executed this instrument as of the date hereinabove set forth.

I hereby approve the foregoing indenture designating ______ as Unit Operator under the unit agreement for the ______ Unit Area, this ____________ day of __________________, 19____.