Peter became an advisory director of Campbell Lutyens in 2009. Until his retirement in 2009, Peter was the Vice Chairman of the Board for Chevron Corporation, one of the world's largest energy companies. He joined Chevron in 1973 and over his 36-year career he had a wide variety of responsibilities, including the leadership of Chevron's worldwide exploration and production and global gas businesses, corporate strategic planning and corporate policy, government and public affairs. He is currently a non-executive director of Jacobs Engineering Group and of Sasol Limited. He is co-chairman of the US-Saudi Arabian Business Council, chairman of the World Affairs Council of Northern California and a member of the International House board at UC Berkeley. He serves in advisory roles with several companies and has served on the Boards of Dynegy Inc., Universal Pegasus and Caltex Petroleum. He is a past chairman of the US Energy Association. A native of Edinburgh, Scotland, he holds a Bachelor's Degree in Mechanical Engineering from Edinburgh University and an MBA from the University of Pennsylvania, Wharton School, where he was a Thouron Scholar.