John O'Sullivan, based in Dublin, IE, is currently a COO and Co-Founder at dCarbonX Ltd, bringing experience from previous roles at Providence Resources PLC, Marine Institute and Marathon Oil Corporation. John O'Sullivan holds a 2006 - 2014 Doctor of Philosophy - PhD in Geology @ Trinity College, Dublin. With a robust skill set that includes Petroleum Geology, Upstream, Geology, Petroleum, Geophysics and more, John O'Sullivan contributes valuable insights to the industry. John O'Sullivan has 2 emails on RocketReach.