Okla. Stat. tit. 63, § 63-1-738.3g: Reasonable costs and attorney fees

If judgment is rendered in favor of the plaintiff in any action

pursuant to Section 1 of this act, the court shall also render

judgment for costs including reasonable expert witness fees and for

a reasonable attorney fee in favor of the plaintiff against the

defendant. If judgment is rendered in favor of the defendant and

the court finds that the plaintiff's suit was frivolous,

unreasonable or without foundation, the court shall also render

judgment for costs including reasonable expert witness fees and for

a reasonable attorney fee in favor of the defendant against the

plaintiff.