Pour the oil into a large skillet set over medium-high heat. Add the sausages, and cook for a few minutes on each side until they are well browned. Set the sausage aside. Add the butter along with the red onion, bell peppers, oregano, and basil. Season with a pinch of salt and pepper. Cook for about 5 to 7 minutes, or until the onions are soft. Pour the wine into the skillet, add the sausage back in, cover, and turn the heat to medium-low. Simmer for about 15 minutes, or until the sausages are completely cooked. Serve the sausages in the hoagie rolls, and top with the peppers.