Dr. McMahon joined Sanford C. Bernstein in 2002 as a senior research analyst covering the Global Integrated Oil Industry and the Refining Industry. He is currently top ranked in both the Institutional Investor All American Research Team and European investor surveys for energy research. Previously, he was a management consultant with McKinsey & Co, based in both Houston and London, where he had been since 1999. At McKinsey he mainly advised Petroleum and Electric Power and Natural Gas clients, and undertook proprietary research within their industry practices. Prior to McKinsey, Dr. McMahon worked in the oil industry as a Geoscientist with BP and British Gas before moving into management consulting with Arthur D. Little, where he became a Manager in their Global Energy Practice.
Dr. McMahon received an honours degree from The University of Edinburgh in Geology and Geophysics, where he later undertook further research to complete a BP sponsored Ph.D. Dr. McMahon has also published a number of technical and management oriented papers in leading oil and gas industry journals, and is on the advisory board of Durham University's Centre for Research into Earth Energy Systems (CeREES) and the Durham Energy Institute.