According to press reports, the agreement would allow Chevron to bring in workers during the construction phase of the project, assuming it could not source workers locally.

The move comes as Chevron confirmed a fourth train at the project and also committed to a thorough review of costs associated with the Gorgon project by the end of the year.

It has also been caught up in wrangling over the legal status of workers working on the offshore component of the Gorgon project, with the government seeking to close a loophole which allowed workers to work without a 457 Visa.

The deal is dwarfed by the EMA signed by Gina Rinehart's Hancock Prospecting to potentially bring in 1700 workers as it seeks to develop the Roy Hill mine in the Pilbara.

So far Chevron has not said what type of workers it would bring in, except to say they would be semi-skilled in nature.

It would not confirm to EnergyNews this morning what the workers would be used for but a spokesperson reiterated it was Chevon's intention to use Australian skilled and semi-skilled workers first before moving to import labour.

The spokesperson also insisted that any workers brought in under the scheme would be under the same wages and conditions than their Australian counterparts.

So far, about 4000 people are working on Barrow Island with more than 9000 workers tipped to work on the project, with this number to swell to more than 10,000 during peak construction.

Earlier this year lead contractor Bechtel opened a new jobs facility in the Perth suburb of Kewdale in an attempt to source more workers for the project.

The centre coordinates the entire hiring process, from allowing individuals to register their interest through onsite kiosks, through to arriving at the site to start work.

Medical facilities also operate onsite to facilitate the recruitment process.