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Mr. Rabun is the former Chairman of Ensco plc, an offshore drilling services company, based in London. He retired as President and Chief Executive Officer of Ensco in June 2014, having held the office of Chief Executive Officer for more than seven years and President for more than eight years. Prior to joining Ensco, Mr. Rabun was a partner with the international law firm of Baker & McKenzie LLP, where he provided legal advice to oil and gas companies. He has also been a certified public accountant since 1976.

Skills and Qualifications: Mr. Rabun brings a variety of experiences to the Board, including service as Chairman of the Board, President, and Chief Executive Officer of Ensco. His international experience, global perspective, experience with strategic acquisitions, and financial acumen from having served a total of more than eight years as the business head of a public company assist the Board in the assessment and management of risks faced by oil and gas companies.

Mr. Rabun has served on the Board of Directors and as a member of the Audit Committee of Golar LNG Ltd. since February 2015 and served as the non-executive Chairman from September 2015 to September 2017. He has also served on the Board of Directors of APA Corporation (formerly known as Apache Corporation) since May 2015, where he is currently a member of the Corporate Governance and Nominating Committee and the Audit Committee.