This follows damage to the vessel’s lifeboats following bad weather at the field location last October.
Operations were suspended and the vessel was taken to the Hanøytangen shipyard in Norway for repair work.
The 2015 support program is now shortened to four months firm, starting in June. From mid-May 2016 the vessel will return to Everest for two more months.
In addition, Prosafe has grantedBG Group two additional 15-day options for 2016. Total value of the contract following the changes has dropped from $68 million to $40 million.