Heat a gas grill to high for 2-3 minutes
Coat the steak with half the olive oil and sprinkle with salt and pepper
Grill on high for 4-6 minutes, flipping halfway through
Baste the steak with the rest of the oil, using the rosemary to apply the oil
Cook for another 4-6 minutes, until the steak is done to your satisfaction (medium, medium-rare, etc.)
Let the steak sit, uncut for 4-5 minutes
Slice along the bone into thin strips
Serve with lemon wedge and rosemary as garnish