The Durance class is a series of multi-product replenishment oilers, originally designed and built for service in the French Navy.

Two ships of a similar but smaller design are in service with the Royal Saudi Navy as the Boraida-class replenishment oilers.

In French service, the class the first two ships were dubbed Pétrolier Ravitailleur d'Escadre (PRE, "fleet replenishment oiler"), and the final three, Bâtiment de commandement et ravitailleur (BCR, "command and replenishment ship").

[1] In addition to their role as a fleet tanker, the three dubbed BCR can accommodate an entire general staff and thus supervise naval operations.

[2] Meuse, which had a superstructure that was one deck higher than Durance, the lead ship of the class and the final three ships of the class, Var, Marne and Somme all had superstructures that were extended aft by 8 m (26 ft) to accommodate the additional staff requirements.

All five vessels are powered by two SEMT Pielstick 16 PC2.5 V 400 diesel engines turning two LIPS controllable pitch propellers rated at 15,000 kilowatts (20,000 hp).

The ships utilised Aérospatiale Alouette III and Westland Lynx helicopters (prior to the retirement of both types) but are capable of operating larger ones from their flight deck.

The 2013 French White Paper on Defence and National Security planned to replace them with four new double-hulled tankers between 2018 and 2021.

[4] The fifth and final ship was ordered in March 1984 as part of the 1984–1988 plan and was built by Normed at their yard La Seyne, France.

Prior to 2010, one of the BCRs (Var, Marne or Somme) had been assigned to Indian Ocean as flagship of the French naval forces in the region.

[15] The Royal Australian Navy (RAN) ordered one vessel, HMAS Success, of a modified design in September 1979.

[17] Propulsion machinery consisted of two SEMT-Pielstick 16 PC2.5 V 400 diesel motors, which supplied 15,500 kW (20,800 hp) to the ship's two propeller shafts.

[18] Fuel and liquid stores could be transferred from four points (two on each side), allowing Success to replenish two ships simultaneously, while solid cargo could be moved via vertical replenishment (with a hangar and helipad for a single Sea King, Seahawk, or Squirrel helicopter), or by boat (the RAN LCVP T 7 was carried on a starboard forward davit).

[22] In October 2022, it was reported that the Argentine defence ministry had allocated funding for a refit of the ship to be carried out at the Puerto Belgrano Naval Arsenal in collaboration with the Tandanor shipyard.

[25] In October 1980, Saudi Arabia signed a contract for two replenishment oilers as part of the Sawari I programme.