Place the chicken breasts at the bottom of the crockpot.
In a mixing bowl, combine the ranch dressing mix, gravy mix, chicken broth, and cream of chicken soup until well blended.
Pour the mixture over the chicken in the crockpot, making sure to coat the chicken evenly.
If using, drizzle olive oil over the chicken for added flavor.
Season with salt and pepper to taste.
Cover and cook on low for 6 hours or until the chicken is tender and fully cooked.
Once cooked, use a fork to shred the chicken directly in the crockpot, mixing it into the gravy.
Serve hot over rice, mashed potatoes, or your favorite side.