Coop Norge oversees the logistics, marketing, operations, and purchasing activities for about 900 supermarkets and hypermarkets run by some 215 cooperatives in Norway, which together account for some 25% of the country's grocery market (behind #1 NorgesGruppen). Member stores operate mainly under the Coop Marked, Coop Mega, Coop Obs!, Coop Prix and Coop Extra banners. Coop Norge also sells from about two dozen Coop Obs! Bygg do-it-yourself stores. Coop Norge was a subsidiary of Coop Norden AB, which operated hypermarkets, supermarkets, and discount stores across the Nordic region, but returned ownership to each of its three major cooperative retailers in 2006.