HMAS Success (OR 304) was a Durance-class multi-product replenishment oiler that previously served in the Royal Australian Navy (RAN).

Built by Cockatoo Docks & Engineering Company in Sydney, Australia, during the 1980s, she is the only ship of the class to be constructed outside France, and the only one to not originally serve in the Marine Nationale (French Navy).

Success was decommissioned at Fleet Base East on 29 June 2019, after 33 years of service, and towed to Port Pirie for scrapping in August 2019.

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

[5] Fuel and liquid stores can be transferred from four points (two on each side), allowing Success to replenish two ships simultaneously, while solid cargo can 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 is carried on a starboard FWD davit).

[7] In June 1983 the contract were renegotiated while construction was underway, with the acceptance date being extended by three years and the project cost increased to $187.3 million.

[3] Additional factors in the time and cost increases were a lack of tradesmen skilled in naval construction, overly bureaucratic management, and low labour productivity.

[10][11] In 2005, Success was one of several Australian warships to participate in Exercise Talisman Sabre 2005, a series of joint RAN-USN war games.

[14] In late November 2006, Success was one of three Australian warships sent to Fiji during the leadup to the 2006 coup d'état by Fijian military forces against Prime Minister Laisenia Qarase.

[18] The replenishment ship was one of the thirteen vessels involved in the ceremonial entry through Sydney Heads, and anchored in the harbour for the review.

[21] Gyles found that although the harassment and misconduct had been occurring as early as 2004, failures to respond to earlier complaints led to a breakdown in discipline aboard Success.

[21] At the end of 2009, the Department of Defence released a request for tender for modification of Success into a double hull vessel, allowing her to meet International Maritime Organization standards for oil tankers.

[5] In March 2014, Success was deployed to assist in efforts to locate and retrieve possible wreckage from Malaysia Airlines Flight 370 that had been detected on satellite images of the southern Indian Ocean.

[33] Following her double-hull refit, this was extended to the early 2020s, with the decision on the replacement vessel (acquisition project SEA 1654 Phase 3) to be made between 2016 and 2018, and the new ship in service by 2023.

[36] Navantia from Spain offered the Cantabria design, while Daewoo Shipbuilding & Marine Engineering from Korea proposed a downsized Aegir variant of the Tide-class tanker.