Oberliga (ice hockey) - Wikipedia
https://en.wikipedia.org/wiki/Oberliga_(ice_hockey)The Oberliga (English: Upper League) is the third tier of ice hockey in Germany, below DEL2 and ahead of the Regionalliga. Since the 2015/16 season, the league has been split into two regionalised divisions, Nord (north) and Süd (south). The Oberliga was originally founded in 1948 and is administered by the German Ice Hockey Federation (DEB).