Preheat the oven to 350 degrees. Put the olives in a small saucepan and cover with water. Bring to a boil and cook for 1 minute. Drain well in a colander. In a small oven-proof glass or ceramic dish, combine the olives, wine and olive oil. Bake 30 minutes, turning once during the baking time. Much of the liquid will have evaporated. Serve warm or at room temperature.