Okla. Stat. tit. 2, § 361d
An association may be organized under this act to engage in any activity in connection with the marketing or selling of agricultural products, or with the harvesting, preserving, drying, processing, blending, canning, packing, grading, storing, warehousing, handling, shipping, or utilizing such products; or in connection with the manufacturing, marketing, selling or supplying of the byproducts thereof or the manufacturing, selling, or supplying of machinery, equipment, feed, fertilizer, seeds, or buying and selling oil, gasoline or other supplies; or in the financing of any of the above enumerated activities or in performing or furnishing business or educational services on a cooperative basis for those engaged in agriculture as bona fide producers of agricultural products or in any one or more of the activities specified herein.
Laws 1937, SB 101, p. 261, § 5. emerg. eff. May 22, 1937