When the oil leak occurred between a storage cell and one of the platform, oily water was pumped into the sea for safety reasons. The oily discharge mainly consisted of water, with a small percentage of oil.
StatoilHydro noted observations from the Norwegian Institute for Nature Research, which indicate that there has been no significant harm to sea birds, fish or other species.
The monitoring of the discharge by airplane and vessel reportedly continues. The oil production from Statfjord-A normally totals about 19,000 barrels per day.
Lars Lundahl, head of Statfjord production, said: After the situation was normalized, the employees on Statfjord-A have done a great job tidying and cleaning the area in the platform shaft where the leak occurred. This work must be completed before production is resumed.