Okla. Stat. tit. 22, § 360
The court clerk of the county in which a prospective member of a multicounty grand jury resides, upon receipt from the Administrative Director of the Courts of a list of prospective multicounty grand jurors residing in the county, shall cause such prospective jurors to be summoned for service.
Laws 1987, HB 1177, c. 99, § 11, eff. November 1, 1987.