Press paper towel onto steak to dry. Spray with olive oil and sprinkle Lil Texas Spice Rub all over steak. Flip steak over and repeat. Once grill is hot (about 15 minutes) place steak on the hottest part of the grill and cook 7-10 minutes on each side. Grill until you have good grill marks and the steak is medium rare (about 130°F).
Transfer steak to cutting board and let rest, tented with foil, about 10 minutes.