Two Mobil employees reacted promptly, and managed to corral the stowaway behind a sheet of metal which they then used to crush it to death.
The mouse had probably come aboard by hiding in cargo being brought out to the platform on a supply ship. A rat had previously been killed in a similar fashion.
Great damage could have been caused if the mouse had gnawed on and destroyed some of the many vital cables which came into the control room.
According to the platform manager, it “could have caused damage worth millions of kroner and delayed the whole timetable for the Statfjord development if it hadn’t been spotted in time”.
Rat poison and mousetraps were subsequently deployed, along with highly visible signs which alerted crew to the unusual problem.
Aftenposten. (1978). 11. november. Musejakt på Statfjord A.
Bergens Tidende. (1978). 11. november. Statfjord A truet av mus.