Brush the outside of turkey with oil. Rub a generous amount of salt over turkey and sprinkle with pepper to taste.
Transfer to a large slow cooker or Nesco and add chicken stock. Fill the Nesco with water so that the turkey is about half covered with liquid. If extra water is added, add 1-2 tablespoons of additional salt to create a brine.
Cover and cook at 325 or the high setting for 8 hours or until tender.
