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(+33) 7829 68 991Share profile
Expertise Based Abroad
Provided by Sébastien Lechêne
Sébastien has over 25 years of experience advising multinational companies, including 16+ years leading PwC in Equatorial Guinea, following extensive work across multiple African countries.
Association of International Energy Negotiators (AIEN)
French
English
Spanish
Portuguese
Sébastien's expertise includes drafting and negotiating Oil & Gas agreements and transactions, tax planning, assisting during tax audits, company registration, and facilitating partnerships with national stakeholders.
Sébastien is an International OHADA Arbitrator, registered with the OHADA Common Court of Justice and Arbitration, further strengthening his ability to navigate complex legal and commercial disputes. He has provided strategic guidance to clients in OHADA countries, South Africa, Mauritius, and beyond.
Sébastien has supported major and junior energy companies across Africa—including ExxonMobil, Hess, Chevron, Marathon, Noble, Ophir, Glencore, CNOOC, PetroSA, Tullow, Weatherford, Baker Hughes, Schlumberger, and SBM—on a wide range of matters.
Provided by Chambers
Sébastien Lechêne is recognised as a very knowledgeable Madrid-based expert, advising on the tax regime and legal and audit issues in relation to Equatorial Guinea. He also acts on contractual matters and provides additional advice on issues in the oil and gas sector.
Provided by Chambers
He is professional and accommodating.
He is professional and accommodating.
