European supermajor Shell has taken the final investment decision on its expected US$2.5 billion Crux gas field development offshore Australia, which will be developed as a tie-back to its producing Prelude floating liquefied natural gas facility.

Shell and partner SGH Energy plan for construction for Crux offshore Western Australia to start next year with first gas targeted for 2027.

Shell Australia chair Tony Nunan noted that the use of Prelude’s existing infrastructure enables significantly reduced development costs, making Crux competitive and commercially attractive.