Okla. Stat. tit. 12A, § 12A-1-9-336: Commingled goods

COMMINGLED GOODS

(a) In this section, “commingled goods” means goods that are

physically united with other goods in such a manner that their

identity is lost in a product or mass.

(b) A security interest does not exist in commingled goods as

such. However, a security interest may attach to a product or mass

that results when goods become commingled goods.

(c) If collateral becomes commingled goods, a security interest

attaches to the product or mass.

(d) If a security interest in collateral is perfected before

the collateral becomes commingled goods, the security interest that

attaches to the product or mass under subsection (c) of this section

is perfected.

(e) Except as otherwise provided in subsection (f) of this

section, the other provisions of this part determine the priority of

a security interest that attaches to the product or mass under

subsection (c) of this section.

(f) If more than one security interest attaches to the product

or mass under subsection (c) of this section, the following rules

determine priority:

(1) A security interest that is perfected under subsection (d)

of this section has priority over a security interest that is

unperfected at the time the collateral becomes commingled goods.

(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.