2Heat oil in large pot over high heat. Working in batches, cook pork in the hot oil until browned on all sides, about 5 minutes. Return all cooked pork and accumulated juice to pot.
3Season pork with bay leaves, cumin, dried oregano, and cayenne pepper. Stir in fresh orange juice, orange zest, and milk. Bring mixture to a boil over high heat; reduce heat to low. Cover and simmer, stirring occasionally, until meat is fork tender but not falling apart, about 2 hours.