Not Legal Advice: In Oklahoma, sale is not controlled by the state. Each county decides for itself whether it will permit the sale of alcohol by the glass.
Low-point beer may not be sold for consumption on-premises or allowed to be consumed in places licensed to sell alcohol between 2:00 a.m. and 7:00 a.m.
Liquor stores can’t open before 10 am have to be closed by 9 pm and cannot be opened on Sunday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day, or New Year’s Day. And of course nothing can be refrigerated.
You can buy beer on Sundays, the only catch is that can’t buy it at a liquor store, so that only leaves the options of the 3.2% ABW beer that you can get in grocery stores and gas stations, or you can also go to any bar that is open on Sunday.
Oklahoma has some of the strictest liquor laws in the country. Any beverage containing more than 3.2% ABW, that is, most liquors, wines, and typical beer, may only be sold in licensed liquor stores at room temperature. Due to this refrigeration ban, many smaller breweries will limit or not sell their products in Oklahoma.
If you're going to drink, you may want to keep these tips that may help you avoid overdoing it shared by WebMD.