Okla. Stat. tit. 51, § 51-52: Presiding officer of court of impeachment - Presentation of

impeachment.

When sitting as a court of impeachment, the Senate shall be

presided over by the Chief Justice, or if he is absent or

disqualified, then one of the Associate Justices of the Supreme

Court, to be selected by it, except in cases where all the members

of said Court are absent or disqualified, or in cases of impeachment

of any Justice of the Supreme Court, then the Senate shall elect one

of its own members as a presiding officer for such purpose. The

House of Representatives shall present all impeachments.