During a successful career at Amoco, Dave Marsden developed the company’s first interactive mapping software.  His work led to the discovery of the Scott and Everest fields and development of the CATS pipeline system, enabling monetisation of the East Central Graben gas fields. He was a founding director of WHAM Energy, bought by Venture Production; co-founder of Volantis Exploration which was sold to Atlantic Petroleum; and subsequently co-founder of Actis Oil & Gas, the precursor to Painted Wolf Resources.