Preheat oven to 350ºF. Lightly grease a 9 x 9-inch square baking pan. In a medium saucepan, combine honey, brown suga, oil and cinnamon. Bring to a boil, and boil for 2 minutes; do not stir. In a large mixing bowl, combine oats and blueberries. Stir in honey mixture until thoroughly blended. Spread into prepared pan, gently pressing mixture flat. Bake until lightly browned, about 40 minutes. Cool completely in the pan on a wire rack. Cut into 1-1/2 x 3-inch bars.