Mr. Dahan is of Dutch nationality and resides in Ascot, England. Mr. Dahan was appointed Director of Repsol at the Annual General Meeting held on May 31st, 2013, and reelected at the Annual General Meeting on May 19th, 2017.
Mr. Dahan was the former Director and Executive Vice President of ExxonMobil Corporation. He started his career with Exxon at its Rotterdam refinery in 1964. After several operating, engineering and staff assignments he was appointed manager of the 325 kbd Rotterdam Refinery in 1974.
He transferred to the European Exxon headquarters in 1976 where he was responsible for Exxon natural gas interests in Europe. After a short assignment in the corporation New York headquarters he was appointed CEO of Esso B.V., the company’s affiliate responsible for all upstream and downstream interests in the Benelux countries.
In 1990, he transferred to New Jersey, USA and was appointed in 1992 President of Exxon Company International responsible for all Exxon businesses outside North America.
In 1998, he joined the Management Committee and was appointed as Director of Exxon corporation in Dallas with responsibility for the worldwide downstream and chemical business.
In 1999, he led the implementation of the merger between Exxon and Mobil and was subsequently named Executive Vice President of ExxonMobil Corporation. He retired in 2002.
In the period between 2002 and 2009, he served as a director in the Supervisory Boards of VNU N.V., TNT N.V. and Aegon N.V. and the Advisory Boards of CVC (private equity) and the Guggenheim group in New York.
He resigned from the Supervisory Board of Royal Ahold N.V. on October 1, 2013 after serving as its Chairman for the past ten years.
He is a Member of the International Advisory Board of the Instituto de Empresa in Madrid and President of the Dahan Family Foundation and since January 1st, 2016 he has been Chairman of the Supervisory Board of the company NRGV Retail Nederland B.V.