In a 1-gallon self-closing plastic bag, combine oil, lemon juice, herbes de Provence, black pepper, and chicken; seal the bag and shake to coat.
Refrigerate 30 to 60 minutes.
When you are ready to cook, spray a grill rack with cooking spray. Preheat a gas grill to medium/medium-high or prepare a medium-hot fire in a charcoal grill, with the rack placed 4 to 6 inches above the heat.
Remove chicken from marinade and discard marinade.
Place chicken on the grill and cook for 10 to 15 minutes or until chicken is cooked through and no longer pink, and its juices run clear, turning once.