Allow roast to come to room temperature. Preheat oven to 350° F.
Generously rub Olive Oil over tenderloin, sprinkle salt, cumin & freshly cracked pepper.
Quickly sear all sides of tenderloin on high heat on a skillet on your stove top about 3 minutes per side.
Cook roast on middle rack at 350°F until it reaches internal temperature of 135°F for medium rare.
Approximate time depends on weight, 2-3lbs: 30-35 min., 4-6lbs: 45-55 min. Check temperature at different times. Remove roast from oven, let roast rest covered for 10-15 minutes. This will allow juices to distribute and will increase internal temperature 5 degrees.

* Please remember that each oven is different. Always use a meat thermometer to check on internal temp of roast at different times.