Preheat oven to 400 degrees F. In a large oven proof skillet, heat 2 tbsp olive oil over medium high heat. Add tenderloin and cook until browned on the bottom, about 3 to 5 minutes. Flip over and transfer to the oven.  Roast for 15 to 20 minutes or until a thermometer, inserted in the thickest part, reaches 135 degrees F.  Transfer to a plate, cover loosely with foil, and let rest for 10 minutes. Slice and serve.