Det Norske disclosed that capital expenditure in the first phase of the giant field project off Norway would be between Nkr100 billion and Nkr130 billion ($16 billion and $21 billion), which it said included “contingencies and estimated future price escalation”.

The company underlined the preliminary estimate could be affected by the final concept selection by pre-unitisation operator Statoil and its partners, which has now been delayed to early next year while the mid-point resource estimate has been cut 6% to 2.35