Upstream reported last week the proposed $6.7 billion scheme to extract more resources from the giant field using a new tension-leg platform is at risk amid apparent dissension among the partners over its economic viability, with no alternative plan on the table.

However, operator Statoil is under pressure to deliver a workable solution from state-run partner Petoro - the holder of the state’s stake in the project - as well as the Norwegian Petroleum Directorate in line with government policy to maximise exploitation of resources from existing fields.

Petoro