Monadelphous Group has secured a long-term maintenance and minor construction services contract for Shell Australia's Prelude Floating Liquefied Natural Gas Project.

The seven-year contract will commence in November, following the expiration of Monadelphous' existing agreement with Shell.

The scope of the contract includes the provision of onshore project management and planning services at Shell's headquarters in Perth, Western Australia, as well as offshore maintenance services at the Prelude FLNG facility, situated in the Browse Basin, approximately 475km north-northeast of Broome, Western Australia.