The oil industry of North Norway is centered in Harstad; including Statoil's main office for a new operational area for Northern Norway, the DNV office for Northern Norway, as well as other regional offices including TotalEnergies, Det Norske Oljeselskap ASA and Aibel. Harstad also has shipyards and other industries that are important for the economy. Harstad and the surrounding area have traditionally been among the most productive agricultural regions in Northern Norway,. The old seabed, now dry land due to isostatic rebound (up to above sea level), creating fertile soil that is well-suited for farming.http://www.skogoglandskap.no/filearchive/Rapport_02_98.pdf
