Okla. Stat. tit. 16 § 35
Every acknowledgment must be under seal of the officer taking the same; and when taken in this state, it may be taken before any notary public, county clerk, clerk of the district court, clerk of the county court, or county judge; and when taken elsewhere in the United States, or United States possessions, or Canada (including Newfoundland), it may be taken before any notary public, clerk of a court of record, or commissioner of deeds duly appointed by the Governor of the state for the county, state or territory where the same is taken; and when taken in any other foreign country, it may be taken before any court of record or clerk of such court, or before any Consul of the United States, provided, that acknowledgments relating to military business of the state may be taken before an officer in charge of any summary Court-Martial appointed under the provisions of Section 157, Title 44, Oklahoma Statutes, 1941, a certified copy of whose appointment is placed of record in the office of the Secretary of State by the Adjutant General.
Okla. Stat. tit. 16, § 35