Okla. Stat. tit. 12A, § 1-103
Oklahoma Code Comment
As with the preceding section (see Oklahoma Code Comment to section 1-102 ) , this provision highlights sometimes important line-drawing issues, in this section as between the UCC and supplementary rules of law and equity. Revised section 1-103(a)(2) is drawn from old section 1-102(1) and (2) and is consistent with Oklahoma case law acknowledging the intent of the UCC to recognize and reinforce general commercial practice and the intent of the parties, as established through custom usage and the agreement of the parties. See Goss v. Trinity Sav. & Loan Ass'n, 813 P.2d 492 (Okla. 1991). This is, of course, limited by generally recognized restrictions based on public policy. See, e.g., Fisk v. Bullard, 239 P.2d 424 (Okla. 1951). See also the limitations on variation by agreement, at revised section 1-302 (moved there from old section 1-102(3) ).
Section 1-103(b) carries forward the language and effect of prior Oklahoma Law. See, e.g., prior statutory provisions at: 2 Okla. Stat. § 9-115; 12 Okla. Stat. § 2; 18 Okla. Stat. § 1.106; and 48 Okla. Stat. § 7. See also related UCC scope rules at 12A Okla. Stat. § 2-102 and section 2-108 of revised Article 2 (2005 uniform text); and 12A Okla. Stat. § 2A-104 and § 2A-104 (2005 uniform text).
See generally Central National Bank and Trust Co. of Enid, 528 P.2d 710 (Okla. 1974) (estoppel); Peoples National Bank v. Uhlenhake, 712 P.2d 75 (Okla. App. 1985) (same); W.R. Grimshaw Co. v. First National Bank & Trust Co. of Tulsa, 563 P.2d 117 (Okla. 1977). Note, however, that supplementation is limited to issues not displaced by provisions of the UCC.