Pat chicken breasts dry with paper towels
Pound to even thickness if needed
Season both sides with salt and pepper
Heat a skillet over medium-high heat
Add oil to the skillet
Place chicken breasts in the skillet
Cook without moving for 5 to 7 minutes
Flip the chicken breasts
Cook for another 5 to 7 minutes
Reduce heat if the outside is browning too fast
Cook until the internal temperature reaches 165°F
Remove chicken from the skillet
Let rest for 5 minutes before slicing