Drill holes in the North Sea (IMAGE) Helmholtz Centre for Ocean Research Kiel (GEOMAR) Caption Distribution of drill holes across the Exclusive Economic Zones of the UK, Norway, Denmark, Germany and the Netherlands. Credit Graphic: Christoph Böttner/GEOMAR. Usage Restrictions in the context of this press release only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.