The closure since December 11 of the pipeline, which normally pumps about 450,000 barrels per day, and supply disruptions in Libya have helped push oil prices above $67 a barrel, their highest since mid-2015. Forties plays an important role in the global market as it is the biggest of the five North Sea crude streams underpinning Brent, a benchmark used for oil trading in Europe, the Middle East, Africa and Asia.
The system also carries a third of Britain's offshore natural gas output. "All restrictions on the flow of oil and gas from platforms feeding into the pipeline system have been fully lifted. All customers and control rooms have now been informed," Ineos said in a statement. "Based on current estimates the company expects to bring the pipeline and Kinneil (oil plant) progressively back to normal rates around new year," it added.
Ineos was forced to declare force majeure on deliveries of Forties crude oil, natural gas and condensate, suspending its contractual obligations to customers by citing circumstances beyond its control.
This is believed to be the first force majeure on a major North Sea production stream in decades. On Thursday, traders said force majeure was still in place and no indication had been given as to when it might be lifted.
In a sign of normality returning, an export schedule of Forties crude oil cargoes in February was sent out to cargo owners on Wednesday, although the number of shipments is much lower than normal.