Mark McAllister has been Chair of Ofgem - the energy regulator - since November 2023. Working alongside the CEO and Board, Mark is leading the organisation to ensure consumer interests are protected while the transition to Net Zero is delivered in line with Ofgem's recently published Multiyear Strategy. Previously he served as Chair of the Office for Nuclear Regulation and was a member of the Management Committee of the Public Chairs Forum. During a 40-year executive career in the upstream energy industry Mark was on the executive board of two of the UK’s most successful independent companies, Monument and LASMO. He also founded and served as CEO of two North Sea start-up businesses, Acorn and Fairfield Energy, and was most recently CEO of PA Resources, listed on the Scandinavian NASDAQ. Mark served as Chairman of OSPRAG (Oil Spill Prevention and Response Advisory Group) which formulated the joint response of the North Sea oil industry, trade unions and government to the Macondo blowout in the Gulf of Mexico. In 2009 he was awarded an Honorary Doctorate of Technology from Robert Gordon’s University for services to the oil industry. Over the last 20 years, Mark has held a number of non-executive roles in the charitable sector. He is currently Chair of Oasis Charitable Trust, who work across the UK to transform communities through a wide range of services including education and housing.