From and after the effective date of an order of the commission creating a unit and prescribing the plan of unitization applicable thereto, the operation of any well producing from the common source of supply or portion thereof within the unit area defined in the order by persons other than the unit or persons acting under its authority or except in the manner and to the extent provided in such plan of unitization is unlawful and is hereby prohibited.
N.D.C.C. § 38-08-09.6