Okla. Stat. tit. 64, § 64-1018: Destruction of timber or improvements - Unlawful entry -

Damages.

Any person, firm, business, or other entity who, without written

authority from the Commissioners of the Land Office, trespasses,

uses, cuts timber, injures or destroys surface or subsurface lands

or improvements, removes anything of value from the surface or

subsurface, assumes possession without a lease or other legal

interest in the lands, or who refuses to surrender possession at the

expiration, rescission or termination of a lease or easement shall

be subject to a civil action for actual damages, possession of the

land, injunction, civil penalties equal to the amount of actual

damages, attorney fees, litigation expenses, sheriff fees and court

costs. Damage claims shall carry sixteen-percent interest from the

date of injury. The person, business or other entity shall also,

upon conviction, be guilty of a Class D3 felony offense and shall be

subject to imprisonment as provided for in subsections B through F

of Section 20P of Title 21 of the Oklahoma Statutes.