Place roast in open roasting pan. Combine oil, worcestershire sauce and seasonings. Rub over beef. Roast 10 minutes per pound. Turn oven back to it's lowest setting. Leave roast in oven all day until ready to serve (minimum 4 hours).
Remove to serving platter. Use drippings to make gravy if desired. Use leftovers for hot roast beef sandwiches the next day.