A major strike due to begin in Norway on 3 May will not immediately affect Statoil production, but is set to hit construction and maintenance work.
The stoppage involves workers affiliated to the Norwegian Federation of Trade Unions (LO), who voted down a recent pay settlement with the Confederation of Norwegian Business and Industry (NHO).
Because the Bukser og Bjergning tug operator is one company affected by the dispute, all arrivals and departures by large vessels may cease at Statoil's Mongstad crude oil terminal near Bergen.
The same applies to the group's gas treatment plant at Kårstø north of Stavanger, and this could eventually have an impact on operations at these two facilities.
Completion of the Kårstø development project as well as the Åsgard B, Heidrun North and Sygna developments in the Norwegian Sea will also be hit, and Statoil has applied for an exemption from the strike to mitigate the consequences.
Certain ferry routes are also affected by the strike, which could cause supply problems for a number of Statoil service stations.
The group's transport contractors have not been called out, but distribution of general merchandise and bottled gas will be hit.
No Statoil employees are taking part in the strike, but its scope will be stepped up over coming days to put pressure on employers.