Okla. Stat. tit. 11, § 11-29-157: Assessment lien

Every assessment levied under the authority of this act shall be

a lien against the tract of land on which it has been levied, until

paid, and the lien shall be coequal with the lien of ad valorem and

other taxes including special assessments, and prior and superior to

all other liens, and the assessment shall draw interest and shall be

collected in the same manner as ad valorem taxes.