Every such conveyance, lease, deed of trust, or mortgage, made by a public utility which covers any real property other than that used by such public utility as a right of way for its railway, telecommunications lines, or gas or oil pipelines, also must, in order to obtain the priority created by section 47-19-41, be recorded in the office of the recorder for each county wherein such other real estate, or any part thereof, is situated.
N.D.C.C. § 49-09-15