So 7-Eleven is an Oak Cliff original. It’s roots right here, starting in 1927 as an ice house. They added eggs, bread, and dairy. In 1936, they built Oak Cliff Dairy. Under various names and owners they established the first convenient store chain. Today, with over $ 90 billion in annual revenue, they are a success story. When store hours were extended from 7 am to 11 pm, their final namesake stuck. With Big Gulps, Slupee’s, to go coffee and pasteries galore, we have all stopped in for a snack, gas, or beverage.