Occidental announced that Claire O'Neill, former Member of Parliament and Minister for Energy and Clean Growth in the UK Government, and a former Managing Director, Climate and Energy of the World Business Council for Sustainable Development (WBCSD), has been elected to its Board of Directors, effective as of January 17, 2023. Ms. O'Neill's appointment increases the size of the Board from eight to nine directors. She will serve on the Board's Corporate Governance and Nominating Committee and Sustainability and Shareholder Engagement Committee.

Ms. O'Neill has more than 16 years of experience in consulting, finance, and clean growth strategy. She currently serves as Co-Chair of the Global Imperatives Advisory Board for the WBCSD, an Executive Board Director and Chair of the International Advisory Council for Climate Impact X, and a co-founder and co-chair of the Responsible Energy Forum, among other senior advisory roles regarding climate and sustainability matters. She served as COP26 President-Designate from 2019 until 2020, leading the UK's successful bid to host the global climate summit in Glasgow.

She has a Bachelor of Arts in Geography from Brasenose College at Oxford University and a Master of Business Administration from Harvard Business School.