Preheat oven to 350 degrees F. In a large mixing bowl, combine cake mix, margarine, water, egg, and egg whites. Using an electric mixer, beat on medium speed until blended. Add oats and beat until well blended. Stir in chips.
Drop by rounded tablespoons 2 inches apart onto baking sheets coated with cooking spray.
Bake 8 minutes or until a few air bubbles begin to appear on top of the cookies. (The cookies will not appear to be done; they will continue cooking as they cool.) Carefully remove cookies with a flat spatula and cool completely on wire rack.