Okla. Stat. tit. 12, § 12-2614: Calling and interrogation of witnesses by court

A. The court may, on its own motion or at the suggestion of a

party, call witnesses, provided that all parties shall have the

right of cross-examination of those witnesses.

B. The court may interrogate any witness whether called by

itself or by a party.

C. Objections to the calling or interrogating of witnesses by

the court may be made at the time or at the next available

opportunity when the jury is not present.