Statoil stopped production at the plant, which processes gas from the Snoehvit field, when a 20-minute power failure forced the partial evacuation of the facility on Nov. 19.

Statoil is the field's operator with a 36.79 percent stake. Other owners include state holding firm Petoro (30 pct), Total (18.4 pct), GDF Suez (12 pct) and RWE (2.8 pct).