Okla. Stat. tit. 12A, § 1-9-336
(2) If more than one security interest is perfected under subsection (d) of this section, the security interests rank equally in proportion to value of the collateral at the time it became commingled goods.
Historical Data Laws 2000, SB 1519, c. 371, § 63, eff. July 1, 2001. Oklahoma Code Comment None.