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.
Equinor
Equinor is the largest operator on the Norwegian continental shelf, with 60% of the total production. The fields operated are Brage, Heimdal, Grane, Glitne, Gullfaks, Heidrun, Huldra, Kristin, Kvitebjørn, Mikkel, Njord, Norne, Ormen Lange, Oseberg, Sleipner, Snorre, Snøhvit, Statfjord, Sygna, Tordis, Troll, Veslefrikk, Vigdis, Visund, Volve, and Åsgard. The company also has processing plants at Kolsnes, Kårstø, Mongstad, Tjeldbergodden, and Melkøya.