Okla. Stat. tit. 42 § 104
A lien granted under Section 1 of this act with respect to farm equipment may be enforced and foreclosed in the same manner as security agreements pursuant to the Uniform Commercial Code. Any legal action taken by or on behalf of a lien claimant to enforce or foreclose any such lien filed in the office of the county clerk shall be commenced within one (1) year of the date the lien was filed or the lien shall be void. For purposes of this section, publication or delivery of a notice of sale under the Uniform Commercial Code shall constitute the commencement of legal action to enforce or foreclose a lien granted under Section 1 of this act. Reasonable attorney fees and legal expenses incurred by the lien claimant to claim, enforce and foreclose the lien granted under Section 1 of this act shall be included in the amount secured by such lien. After five (5) years from the date the lien was filed, the county clerk of the county where the lien is filed shall remove the lien from the records.
Okla. Stat. tit. 42, § 104