Okla. Stat. tit. 82, § 1134

Any trustee, as provided herein, first shall take the oath of office required of an elected public officer and shall be under a good and sufficient fidelity bond, to be approved by the Attorney General, in a surety company authorized to transact surety business in the State of Oklahoma. The cost of said bond shall be paid from funds of the revenue bonds. The oaths of office shall be administered by any person authorized to administer oaths in the State of Oklahoma.