MINNEAPOLIS--(BUSINESS WIRE)--The Dairy Queen® system, international retail food and treat category leader and part of Berkshire Hathaway (NYSE: BRK.A and BRK.B), announced plans to expand the brand’s presence in the Middle East with a multi-unit development deal for DQ Grill & Chill® restaurants and DQ® Treat stores. Durra Khaled For Foodstuffs Co., a subsidiary of KMGC, has signed a long-term franchise agreement with the Dairy Queen system and plans to develop more than 20 DQ Grill &