Debevoise is unmatched in the field of international investor-state arbitration. No other firm combines leading practices in international commercial arbitration, investment treaty arbitration and public international law.

Debevoise lawyers have a unique record in successfully handling high-stakes and sensitive disputes around the world. The team, which includes lawyers trained under many different common law and civil law systems, and who speak more than 30 languages, won three of the largest arbitration awards for breaches of BITs that have ever been ordered - two for Occidental Petroleum, in the amounts of US $1.1 billion (US $1.4 billion including interest) and US $120 million, and another for CME in the amount of US $350 million.

Team members represent both investors and states in international arbitration cases involving bilateral and multilateral investment treaties, political risk disputes, sovereign debt, long-term energy concessions, joint venture and distribution agreements, shareholder disputes, power and energy disputes and construction and engineering projects.