Okla. Stat. tit. 37A, § 37A-2-138: Mixed beverage, beer and wine, caterer, special event,

public event or airline/railroad/commercial vessel licensees -

Restrictions on purchasing alcoholic beverages.

The holder of a mixed beverage, beer and wine, caterer, special

event, public event or airline/railroad/commercial vessel beverage

license shall purchase alcoholic beverages only from a licensed wine

and spirits wholesaler or beer distributor, or as otherwise

specifically provided by law; provided, the holder of a mixed

beverage, beer and wine, caterer or special event license issued for

an establishment which is also a restaurant may purchase wine

produced at small farm wineries or beer produced at small breweries

in this state directly from a winemaker or craft brewer as provided

in Article XXVIIIA of the Oklahoma Constitution.

A wine and spirits wholesaler, beer distributor or a holder of a

small brewer self-distribution license or brewpub self-distribution

license may deliver such products to licensees authorized to sell

alcoholic beverages for on-premises consumption; provided, such

licensees may also pick up alcoholic beverage orders if they hold a

private carrier license issued by the ABLE Commission.