40 years in upstream O&G, geothermal, power generation and district heating. Co-founded Oilfield International, an energy consultancy in 1990. Board member of O&G companies controlling 1.2 billion barrels of oil reserves. Leader in Society of Petroleum Engineers, chairs the finance, offtakers and reserves SME groups for the $165m US DOE project "Geothermal Energy from Oil and Gas Demonstrated Engineering.