Okla. Stat. tit. 12A, § 12A-1-9-603: Agreement on standards concerning rights and duties

AGREEMENT ON STANDARDS CONCERNING RIGHTS AND DUTIES

(a) The parties may determine by agreement the standards

measuring the fulfillment of the rights of a debtor or obligor and

the duties of a secured party under a rule stated in Section 1-9-602

of this title if the standards are not manifestly unreasonable.

(b) Subsection (a) of this section does not apply to the duty

under Section 1-9-609 of this title to refrain from breaching the

peace.