Under the terms of the enhanced five-year agreement, Petrofac will continue to supply personnel to the Unity Platform in the central North Sea, the onshore Cruden Bay Terminal and other landline sites.
The contract has also been reconfigured to include engineering and construction support, the firm added.
It strengthens Petrofac’s existing relationship with Ineos FPS in the UK Continental Shelf area, where it already provides a maintenance consultancy service.
Offshore personnel will continue to be deployed via Petrofac’s dedicated 24/7 delivery hub, through which all of its operations and maintenance contracts are managed.
The company is a key Scottish employer with hundreds of staff in Aberdeen as part of its global workforce.
Nick Shorten, managing director for Petrofac Engineering and Production Services, West, said: “Over the past year we have been supporting Ineos FPS as they work to transform the Forties Pipeline System, and during this time our teams have developed a great understanding of both our client’s onshore and offshore sites.
“The enhancement of this contract demonstrates our client’s continued confidence in our ability to maintain safe operations while delivering improvements to production efficiency. We very much look forward to continue working with Ineos to unlock further value.”
Last month, the group said it was trading in line with expectations for 2020 amid a “difficult environment”. Challenging market conditions had been mitigated by “swift actions” to protect margins and conserve cash, Petrofac told investors.