Rub the chicken breasts on both sides with olive oil and place into the bottom of a slow cooker. Add all of the remaining ingredients except for the hot sauce. Cook on high for 2-4 hours or on low for 6-7 hours or until the chicken is tender enough to shred.
Remove chicken to a cutting board and let it rest for 5 minutes before shredding, leave the liquid in the crockpot. Return the shredded chicken to the slow cooker and cook on low for an additional 20 minutes to absorb some of the liquid. Drain the excess liquid. Taste and add hot sauce if you prefer.