Replenishment oiler

The replenishment oiler HMAS Sirius (right) providing fuel to the amphibious warfare ship USS Juneau while both are underway

A replenishment oiler or replenishment tanker is a naval auxiliary ship with fuel tanks and dry cargo holds which can supply both fuel and dry stores during underway replenishment (UNREP) at sea. Many countries have used replenishment oilers.

The United States Navy's hull classification symbol for this type of ship was 'AOR' (Auxiliary Oil Replenishment). Replenishment oilers are slower and carry fewer dry stores than the US Navy's modern fast combat support ships, which carry the classification 'AOE'. In 2020 the US Navy began to develop a new type of ship, the 'AOL' or light replenishment oiler; construction of the first is planned for 2026.[1]

  1. ^ "Report to Congress on Navy Light Replenishment Oiler". USNI News. United States Naval Institute. April 2023.

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