Okla. Stat. tit. 14A, § 3-209
Subject to the provisions on rebate upon prepayment (Section 3-210), the debtor may prepay in full the unpaid balance of a consumer loan, refinancing, or consolidation at any time without penalty.
Laws 1969, HB 1001, c. 352, § 3-209, emerg. eff. July 1, 1969.