Place oven-safe skillet in the oven and preheat it to 450°. I used a cast iron skillet.
Combine salt and pepper in a bowl.
Pat chicken with paper towel until completely dry. Rub oil all over it until it's completely covered. Sprinkle the salt mixture all over and rub in with your hands. Gently separate the skin from the breast and rub the seasonings under there as well.
Tie the legs together with the twine and tuck the wings under the back.
Place in the preheated pan and cook until the breast is 120°- about 20-25 minutes.
Turn the oven off and keep cooking until the breast is 160° and the legs are 175°- about 25-35 minutes.
Remove from pan and let rest 20 minutes.