Instructions

Gather the ingredients.
Grilled lobster tail ingredients
To split the lobster tails in half, place them on a cutting board, backside down. Use a large, sharp knife to cut down through the center to the shell the whole length.
Split lobster tails in half
Fold the shell back (like you are opening a book), breaking through the shell. If the shell doesn't break, you can use kitchen shears to cut through it. The flesh should now be exposed.
Open shells
Pat the lobster tails dry with paper towels.Pat the lobster tails dry
Preheat the grill for medium-high heat.
Preheat grill
Combine the olive oil (or butter), lemon juice, dill, and salt in small mixing bowl until the salt has dissolved.
Combine olive oil and dill
Brush the mixture onto the flesh side of lobster tails.
Brush mixture on flesh
Place the lobster tails onto the grill and cook for 5 to 7 minutes, turning them once during the cooking process. Depending on the size of the lobster tail, it may need to cook longer.
Place lobster tails on grill
Lobster tails will be done once meat reaches an internal temperature 140 F. The shells should turn a bright pink and the flesh should be opaque all the way through the center.
Grill
Remove the lobster tails from the heat. Serve and enjoy!