Kongsberg Silver Mines
The silver mines of Kongsberg, in Buskerud county in Norway, constitute the largest mining field in Norway, with over 80 different mines. It was the largest pre-industrial working place in Norway, with over 4,000 workers at its peak in the 1770s and supplied over 10% of the gross national product of the Danish–Norwegian union during its 335-year-long history: over 450,000 man-years were expended in the production.
Mongstad
Mongstad is an industrial site in Hordaland county, Norway. The site sits on the border of the municipalities of Lindås and Austrheim, with most of the site in Lindås. The site features an oil refinery for Statoil and other oil companies, including Shell. At Mongstad, Statoil has a crude oil terminal with a capacity of . The port at Mongstad is the largest in Norway, measured in tonnage. The refinery at Mongstad is modern, and has been extensively upgraded, with a capacity of 12 million tonnes of crude oil per year (230,000 barrels per day). The refinery is the largest in Norway, though medium-sized by European standards. It is owned by a company called Mongstad Refining, in which Statoil has whole ownership (since 2013).