In a large zip top bag, combine the oil, parsley, chives, tarragon and lemon zest and massage to blend
. Place the steak in the bag and massage the marinade
into the steak. Zip closed and marinate, refrigerated, for 2 hours.
Preheat a grill
to medium-high. Remove the steak from the marinade and wipe any excess off with a paper towel. Sprinkle both sides of the steak with salt and pepper. Place on the grill and cook for 5 minutes, flip and cook until medium rare, about 150 degrees F, 5 minutes more. Remove from the grill and allow to rest for 5 minutes. To serve, slice in thin strips across the grain of the meat.