Fleet oilers are specialized naval vessels designed to supply fuel and other essential supplies to warships at sea. They play a crucial role in extending the operational range of naval fleets by enabling ships to refuel without returning to port. This capability is vital for maintaining a continuous naval presence and supporting extended missions. These ships are equipped with advanced pumping systems and storage tanks to transfer fuel efficiently. Fleet oilers can also carry provisions, water, and other materials, making them versatile support vessels. Their operations are essential for sustaining naval readiness and ensuring that fleets can operate effectively over long periods.