Okla. Stat. tit. 12, § 12-2203: Determining propriety of taking judicial notice

A. In determining the propriety of taking judicial notice of a

matter:

1. The court may consult and use any source of pertinent

information, whether or not furnished by a party; and

2. No exclusionary rule except a valid claim of privilege shall

apply.

B. A party is entitled upon timely request to an opportunity to

be heard as to the propriety of taking judicial notice and the scope

of the matter noticed. In the absence of prior notification, the

request may be made after judicial notice has been taken.

C. Judicial notice may be taken at any stage of the proceeding.