Crock Pot Pulled Pork

Heat oil in a large skillet over medium high heat. Add pork to the skillet and brown well on all sides. Combine French onion soup, ketchup, vinegar and brown sugar in the crock pot and stir to blend. Add the pork to the crock pot, turning to coat. Cover and cook pork 8 to 10 hours on Low or 4 to 6 hours on High until pork is very tender. Transfer pork to a cutting board and let stand 10 minutes. Shred pork then return the meat to the crock pot until ready to serve.