Okla. Stat. tit. 12, § 12-2004.2

NOTICE OF PENDENCY OF ACTION

A. Upon the filing of a petition, the action is pending so as

to charge third persons with notice of its pendency. While an

action is pending, no third person shall acquire an interest in the

subject matter of the suit as against the prevailing party's title;

except that:

1. As to actions in either state or federal court involving

real property, such notice shall be effective from and after the

time that a notice of pendency of action, identifying the case and

the court in which it is pending and giving the legal description of

the land affected by the action, is filed of record in the office of

the county clerk of the county wherein the land is situated; and

2. Notice of the pendency of an action shall have no effect

unless service of process is made upon the defendant or service by

publication is commenced within one hundred twenty (120) days after

the filing of the petition.

B. Except as to mechanics and materialman lien claimants, any

interest in real property which is the subject matter of an action

pending in any state or federal court, acquired or purported to be

acquired subsequent to the filing of a notice of pendency of action

as provided in subsection A of this section, or acquired or

purported to be acquired prior to but filed or perfected after the

filing of such notice of pendency of action, shall be void as

against the prevailing party or parties to such action.

C. No person purporting to acquire or perfect an interest in

real property in contravention of this section need be given notice

of a sale upon execution or of hearing upon confirmation thereof.