Former Australian navy Fleet Replenishment vessel based at HMAS Stirling in Fremantle, Western Australia. Ship has had a civilian career, before joining the Royal Navy as one of the Leaf Class before Transfering to the Australian Navy before being replaced by the former Civilan Tanker Delos that become HMAS Sirius. Former HMAS Westralia is being or has been converted to a FPSO and is to be or has been moored in the Timor Sea.

29/03/10 Former HMAS Westralia arriving at Aligia in Turkey on 15/01/10 named as Sirius, breaking up of the ship commenced soon after and as at Mid March the stern section and accomodation block was all that was remaining.