Okla. Stat. tit. 37 § 2-130
A mixed beverage/caterer combination license shall authorize the holder thereof to purchase or sell mixed beverages as specifically provided by law for the holder of a mixed beverage license or a caterer license. All provisions of the Oklahoma Alcoholic Beverage Control Act applicable to mixed beverage licenses or caterer licenses, or the holders thereof, shall also be applicable to mixed beverage/caterer combination licenses or the holders thereof, except where specifically otherwise provided. A mixed beverage/caterer combination license shall only be issued in counties of this state where the sale of alcoholic beverages by the individual drink for on-premises consumption has been authorized. A separate license shall be required for each place of business.
Okla. Stat. tit. 37, § 2-130