People
Marc-Olivier Langlois is a partner in our Paris office. He regularly represents the world’s largest companies in complex international arbitrations arising out of infrastructure and energy projects, international investments, mergers & acquisitions, pharmaceutical licensing and distribution agreements, defense and technology disputes, and compliance issues.
Legal 500 has described Marc-Olivier as “outstanding,” noting his “excellent drafting and pleading skills” and ranking him “among the ‘few civil and common law lawyers able to cross-examine witnesses and experts’.”
Marc-Olivier has twenty years’ experience representing international companies and individuals in commercial and investment treaty arbitrations brought under the ICC, LCIA, AAA/ICDR, SCC, ICSID, and UNCITRAL Rules.
Marc-Olivier specializes in complex disputes arising out of international energy and infrastructure projects. He eschews a one-size-fits-all approach to dispute resolution, preferring to work closely with clients’ internal teams and outside experts to develop tailor-made strategies for efficiently resolving specific disputes. Clients value his ability to simplify complicated technical issues and craft winning legal arguments that take into account their commercial priorities and risks. Marc-Olivier regularly acts for clients in the electrical power generation, oil and gas, nuclear, and renewables industries.
Marc-Olivier also acts in disputes arising out of international investments, mergers & acquisitions, pharmaceutical licensing and distribution agreements, defense and technology disputes, and compliance issues. Among other things, he was part of a team of attorneys that obtained the first international awards finding the Russian Federation responsible for expropriating assets belonging to Yukos Oil Company and to Ukrainian investors following the Russian Federation’s takeover of Crimea.
A U.S.-trained lawyer and member of the Bars of the District of Columbia, Virginia, and Paris, Marc-Olivier practiced international arbitration for many years at another international law firm in Paris, where he was the co-head of its international construction disputes practice and the managing partner of its Paris office.
Marc-Olivier was raised and educated in the United States and France. He speaks English and French fluently.
J.D., William & Mary Law School
B.A., University of Virginia
Certificat d'Etudes Politiques, Institut d'Etudes Politiques de Paris
District of Columbia
Paris
Virginia
Law Clerk, the Honorable James H. Michael, Jr., Senior U.S. District Judge, U.S. District Court for the Western District of Virginia
Executive Committee, Foundation for International Arbitration Advocacy (FIAA)
Member, Arbitrator Nominations Committee, USCIB Arbitration Committee
Member, ICC Task Force on Maximizing the Probative Value of Witness Evidence
English
French
June 28, 2023
Best Lawyers Recognizes International King & Spalding Lawyers in its 2024 Guides
April 12, 2023
Legal 500 EMEA 2023 Recognizes King & Spalding among the Top Firms in Europe, the Middle East and Africa
March 31, 2023
King & Spalding Once Again Earns Top Spot on Global Arbitration Review’s GAR 30 Ranking
Construction/Energy
Representing a Spanish infrastructure contractor in an ICSID arbitration against Kuwait seeking more than USD 300 million in compensation for delays and disruption occurring during the construction of an elevated roadway in Kuwait City
Defending an international turbine service provider in an SCC arbitration brought by an Russian power plant operator seeking almost 160 million euro in compensation for alleged breaches of service agreements
Defending a multinational supplier of turbines in an SCC arbitration brought by a Russian power plant developer arising out of the supplier’s exercise of its termination rights and retention of a contractual termination fee, with claims valued at USD 20 million
See more
April 21, 2023
Enforcement of an Arbitral Award in the Face of Corruption Allegations
April 7, 2022
Russia’s Recent Actions Against Foreign Investors Will Give Rise to Claims Under International Investment Treaties
March 1, 2021
One Step Closer: the Canada - EU Investment Court System
June 28, 2023
Best Lawyers Recognizes International King & Spalding Lawyers in its 2024 Guides
April 12, 2023
Legal 500 EMEA 2023 Recognizes King & Spalding among the Top Firms in Europe, the Middle East and Africa
March 31, 2023
King & Spalding Once Again Earns Top Spot on Global Arbitration Review’s GAR 30 Ranking
Construction/Energy
Representing a Spanish infrastructure contractor in an ICSID arbitration against Kuwait seeking more than USD 300 million in compensation for delays and disruption occurring during the construction of an elevated roadway in Kuwait City
Defending an international turbine service provider in an SCC arbitration brought by an Russian power plant operator seeking almost 160 million euro in compensation for alleged breaches of service agreements
Defending a multinational supplier of turbines in an SCC arbitration brought by a Russian power plant developer arising out of the supplier’s exercise of its termination rights and retention of a contractual termination fee, with claims valued at USD 20 million
See more
April 21, 2023
Enforcement of an Arbitral Award in the Face of Corruption Allegations
April 7, 2022
Russia’s Recent Actions Against Foreign Investors Will Give Rise to Claims Under International Investment Treaties
March 1, 2021
One Step Closer: the Canada - EU Investment Court System
June 28, 2023
Best Lawyers Recognizes International King & Spalding Lawyers in its 2024 Guides
April 12, 2023
Legal 500 EMEA 2023 Recognizes King & Spalding among the Top Firms in Europe, the Middle East and Africa
March 31, 2023
King & Spalding Once Again Earns Top Spot on Global Arbitration Review’s GAR 30 Ranking
J.D., William & Mary Law School
B.A., University of Virginia
Certificat d'Etudes Politiques, Institut d'Etudes Politiques de Paris
District of Columbia
Paris
Virginia
Law Clerk, the Honorable James H. Michael, Jr., Senior U.S. District Judge, U.S. District Court for the Western District of Virginia
Executive Committee, Foundation for International Arbitration Advocacy (FIAA)
Member, Arbitrator Nominations Committee, USCIB Arbitration Committee
Member, ICC Task Force on Maximizing the Probative Value of Witness Evidence
English
French