The terminology ‘Tug Boat’ gives quite a fair idea about what it’s meant for. Tug boats are kinds of ships, used for towing and tugging large ships that are disabled and that usually carry tons and tons weight of petroleum or any other heavy industry machines, gas or oil. Tug boats although look smaller in size, but built incredibly strong and sturdy. Ships those can’t move by themselves, tug boats help move them by pushing or pulling through the waterways to inland plant. Having used primarily for disabled ships, oil barges and platforms or those loaded ships that cannot move through narrow or crowded harbor or canals.