Fleet oiler

A fleet oiler is a specialized naval support ship that supplies fuel, and sometimes other essentials like food and ammunition, to military vessels at sea. It extends the operational range of a navy's fleet by enabling ships to stay deployed longer without returning to port. Fleet oilers are essential for maintaining naval readiness and flexibility, especially during extended operations or in distant regions. They are equipped with large tanks and pumping systems to transfer supplies efficiently while at sea, serving as mobile logistics hubs that ensure active ships remain fueled and operational.