Amendment of plan of unitization.

An order providing for unit operations may be amended by an order made by the division in the same manner and subject to the same conditions as an original order providing for unit operations, provided: A. if such an amendment affects only the rights and interests of the working interest owners, the approval of the amendment by the royalty owners shall not be required; and B. no such amendment shall change the percentage for the allocation of oil and gas as established for any separately owned tract by the original order, except with the consent of all working interest owners and royalty owners in such tract, or change the percentage for the allocation of costs as established for any separately owned tract by the original order, except with the consent of all working interest owners in such tract.