Issue Information.

B In this issue... b Papers in this thematic issue focus on Zechstein petroleum system elements in the North Sea and adjacent areas. The following three papers report on Z2 (Hauptdolomit) Zechstein carbonate platforms in and around the Mid North Sea High (MNSH), a Variscan uplift offshore eastern England, and its extension to the SE in Dutch waters known as the Elbow Spit High. However a separate Zechstein reservoir unit at the Jarvis structure consists of Z2 and Z3 dolomites which contain oil whose origin has not been studied before in detail. [Extracted from the article]