The release was stopped within an hour once the issue had been identified and Clair production was taken offline. We are investigating the cause of the technical issue and the field will remain offline for the time being.
Oil spill and environmental experts from BP, Oil Spill Response Limited (OSRL) and the Department for Business, Energy and Industrial Strategy (BEIS) have been working together to assess any potential environmental impacts and to agree the best way to respond.
At present, it is considered that the most appropriate response is to allow the oil to disperse naturally at sea, but contingencies for other action are being prepared.
The most likely volume of oil to sea has been calculated from platform data as around 95 tonnes.
Both direct observation from surveillance flights and oil spill modelling continue to show the oil moving in a northerly direction away from land.The most recent surveillance flight already indicates significant dispersal of the oil at the surface.
The Clair platform is located 75 kilometres west of the Shetland Islands.