Oak Farms Dallas - CDL Driver Class B Dairy Farmers of America IncOak Farms Dallas - CDL Driver Class BDallas, TXDFA manufactures a variety of dairy products, including cheese, butter, fluid milk, ice cream, dairy ingredients and more, under well-known and established regional brands. Drives a Straight Truck to Customer Accounts may do merchandising and delivering product; driver controls the order; delivers on a Straight or Pup Truck.