Ineos has confirmed it has restarted its Forties Pipeline system after the second shutdown in recent months.
Last night the energy giant confirmed an issue with a feed control valve at its Kinneil facility in Grangemouth forced the closure of the huge pipeline.
Ineos, who bought the pipeline from BP last year, said in a statement: “The start-up of the Forties Pipeline System is now underway following the successful resolution of an issue yesterday with a feed control valve.
“We apologise to our customers for any inconvenience caused.”
The 235-mile pipeline system links more than 80 North Sea fields to the UK mainland and the Ineos site in Grangemouth, delivering almost 40% of the UK’s North Sea production.
It follows a three-week shutdown in December after a hairline crack was discovered at Netherley, south of Aberdeen.
Residents living nearby were evacuated with a safety cordon put in place.
Flow resumed around Christmas after repairs were made.
Ineos said “sharp granite” had caused the problem.