Okla. Stat. tit. 22, § 363
Multicounty grand jurors shall be compensated as provided in Section 86 of Title 28 of the Oklahoma Statutes, and shall be reimbursed for necessary expenses on a per diem basis in the same manner and at the same rate as is prescribed by law for state employees.
Laws 1987, HB 1177, c. 99, § 14, eff. November 1, 1987.