Subcon is pleased to announce it has been awarded a Crossings and Support Mattress contract by Subsea 7 on the Chevron-operated Gorgon Project.  The work includes the provision of approximately 410 articulated concrete mattresses and associated lifting frames for the Gorgon Heavy Lift & Tie-Ins scope.

The mattresses will be fabricated at Subcon’s Karratha and Henderson fabrication facilities by twelve personnel split between the two sites.   The contract will provide 20 local jobs including project engineers, design engineers and labour.

Subcon’s Operations Manager, James Hallam said, “This award is a major milestone in the development of Subcon’s business with the design being performed in Perth and fabrication through our regional Australian bases”.

“As an Australian owned, independent supplier who provides Subsea Stabilisation and Offshore Foundation Grouting solution to the offshore energy and nearshore coastal industries, Subcon is proud to be involved in the Gorgon Project,” Mr Hallam said.


Subcon is a Perth based company employing 20 people including project engineers, design engineers, grouting technicians and various support staff. 

Gorgon Project

The Gorgon Project is operated by an Australian subsidiary of Chevron and is a joint venture of the Australian subsidiaries of Chevron (47.3 percent), ExxonMobil (25 percent), Shell (25 percent), Osaka Gas (1.25 percent), Tokyo Gas (1 percent) and Chubu Electric Power (0.417 percent).

Subsea 7

Subsea 7 is a seabed-to-surface engineering, construction and services contractor to the offshore energy industry worldwide. Subsea 7 Australia was awarded a contract for the Heavy Lift and Tie-Ins scope on the Chevron-operated Gorgon Project which includes engineering, spool fabrication, transportation and installation of large structures and spool pieces.

Karratha Yard

Karratha Yard

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