Replenishment oilers are specialized naval ships designed to supply fuel and other essential supplies to military vessels at sea. They play a crucial role in extending the operational range of naval fleets by allowing ships to refuel without returning to port. This capability is vital for maintaining continuous naval operations during missions. These ships are equipped with large storage tanks for various types of fuel, as well as provisions and equipment for transferring supplies. Replenishment oilers support a wide range of naval operations, ensuring that fleets, including aircraft carriers and destroyers, remain mission-ready while deployed in remote areas.