HEAT oil in large nonstick skillet on medium-high heat. Add chicken; cover. Cook 4 min. on each side or until cooked through. Remove chicken from skillet.
ADD water, corn and barbecue sauce to skillet; stir. Bring to boil.
STIR in rice. Top with chicken; cover. Cook on low heat 5 min. Serve with additional barbecue sauce, if desired.