Excerpts from the report: Three kinds of cotton cooperatives are now operating in Oklahoma: Gins, a lint marketing cooperative, and an oil mill. This report reviews both the recent accomplishments and the early development of all three types. Managers and directors of cooperatives in cotton growing areas will find it helpful in evaluating activities of their associations. It will also be of interest to cotton growers. The three types of associations work closely together. The cooperative gins own the oil mill, thus providing formal integration. Many cotton growers belong both to a cooperative gin and to the marketing association. Managers of cooperative gins or the gin cooperatives themselves often act as local receivers or representatives of the lint marketing association.