Okla. Stat. tit. 12A, § 2A-401
Oklahoma Code Comment
This section, and §§ 2A-402 - 2A-406, except for changes due to leasing practice, closely adhere to the provisions of 12A Oklahoma Statutes §§ 2-609, 2-610, 2-611, 2-614, 2-615 and 2-616 applicable to sales of goods under UCC Article 2. Accordingly, to the same degree as with respect to Article 2, these provisions either reflect or change the principles of prior Oklahoma law. For example, the principle articulated in Waggoner Refining Co. v. Bell Oil & Gas Co., 244 P. 756 (Okla.1926), that where it appears that a seller does not intend to abide by the contract in a material particular the purchaser is excused from performance, is reflected in § 2A-402(2). Section 2A-614 on substituted performance may afford more flexibility than prior Oklahoma law which tended to strictly hold the parties to the literal terms of the agreement. See, e.g., Fulton Bag & Cotton Mills v. Liberty Cotton Oil Co., 216 P. 930 (Okla.1923).
It might be noted at this point that unlike UCC Article 2, Article 2A does not contain a number of so-called "gap filler" provisions such as 12A Oklahoma Statutes §§ 2-305 - 2-311. Leases tend to be reflected in written, comprehensive forms, while sales transactions often are formulated from exchanged forms which often leave gaps. Moreover, Article 2A by and large also deletes provisions dealing with "technical" matters, such as §§ 2-319 - 2-324 in UCC Article 2, as these matters are not particularly relevant to leasing practice.
The 1991 amendment makes no change here.