Okla. Admin. Code § 45:10-3-23
No Manufacturer, Nonresident Seller, Wine and Spirits Wholesaler or Beer Distributor, Small Brewer Self-Distributor, Brewpub Self-Distributor, or Winemaker Self-Distributor shall, as a condition for the sale or delivery of alcoholic beverages to another licensee, require such other licensee to purchase any one or more items of alcoholic beverages of another type, quantity, size or brand in addition to, or in lieu of, the specific items ordered. No licensee of any class shall sell or deliver alcoholic beverages in any form or quantity or of any brand to a customer licensee, under any arrangement, agreement, or understanding, direct or implied, that such sale or delivery will be made only if such other customer licensee also buys or accepts delivery of a quantity of alcoholic beverages of another form, another type, quantity, size or brand.
Okla. Admin. Code § 45:10-3-23