Patrick Ellingsworth, retired Executive Vice President – Tax and Corporate Structure for Royal Dutch Shell plc, is a trustee of IBFD and a regular instructor on IBFD tax courses. Until his retirement, he was the head of Shell’s global tax function working from London and The Hague and was responsible for managing Shell’s tax liabilities. Mr Ellingsworth was a major architect of the 2005 unification of the Royal Dutch Petroleum Company (Netherlands) and The Shell Transport and Trading Company (United Kingdom) to form Royal Dutch Shell, after 98 years of operating as a dual-headed group. He is also retired as Chair of the Tax Committee of the Business and Industry Advisory Committee (BIAC) at the OECD in Paris. His previous positions were Vice President and General Tax Officer of Atlantic Richfield Company (ARCO), Los Angeles; Tax Counsel for The Pillsbury Company, Minneapolis; and a partner in a major Cleveland law firm.
Mr Ellingsworth’s primary areas of practice have been oil and gas taxation; major capital market transactions; dispute resolution with tax authorities; tax risk management; and income tax treaty development and application. He is a trustee or director of several major educational and cultural organizations in the United States and has been a regular speaker and writer on a wide variety of tax and management subjects.