Yep. Two can play the mining game. Encircle Kharg and the other islands within Iran’s territorial waters with mines and just leave them there until someone rational gains control in Iran. If Iran sorties their little speedboats swat them with A-10s, attack helicopters, and drones.
Sort of like the island hopping campaign in the Pacific against the Bushido zealots in WW2. You can’t eat oil, and starving on an island is a $hitty way to martyr oneself.