The lien in this chapter attaches only to the leasehold for oil or gas purposes or any pipeline for which labor, materials, or services were supplied. This lien does not attach to or encumber the real property of a freehold estate.
Failure to include the statement mentioned in this subsection in the statement of the lien does not invalidate a lien on the leasehold or pipeline.
N.D.C.C. § 35-24-11