The Navy's AOR class refers to a series of auxiliary oil replenishment ships designed to provide fuel and supplies to naval vessels at sea. These ships play a crucial role in extending the operational range of the fleet by enabling refueling without returning to port. The AOR class vessels are equipped with advanced systems for transferring fuel and can carry a significant amount of oil, along with other supplies. Their design allows them to operate in various maritime environments, ensuring that naval operations remain sustained and effective during extended missions.