Theo Tyrrell is an English-qualified associate in the London office of Gibson, Dunn & Crutcher, where he practises in the firm’s International Arbitration, Award Enforcement and Litigation groups.
Theo represents clients in complex international disputes involving public international law and commercial matters. His practice encompasses investment treaty and commercial arbitrations pursuant to the UNCITRAL, ICSID, ICC and LCIA Rules. He also advises clients on related proceedings before the English courts concerning the recognition and enforcement of arbitral awards, as well as set-aside proceedings.
His experience spans a broad range of industries, including energy, oil and gas, mining, construction, technology and financial services.
Theo trained at Gibson Dunn, including a six‑month secondment to the EMEA litigation and regulatory investigations team of a leading global investment bank.
He holds a First Class Honours degree from the University of Bristol and completed the Graduate Diploma in Law at the University of Law and the Legal Practice Course at BPP.
Representative experience:
- Representing a personal care products manufacturer in an investment treaty arbitration under the UNCITRAL Rules against the Republic of Venezuela, arising from currency control and price control regulations affecting the claimant’s investment.
- Representing an insurance company in an investment treaty arbitration under the UNCITRAL Rules against the Republic of Venezuela, arising from currency control and other regulations affecting the claimant’s investment.
- Representing a major international engineering company in multi-billion-dollar ICC proceedings against a Middle Eastern state, arising from an infrastructure project.
- Representing former subsidiaries of Yukos Oil in multi-billion-dollar UNCITRAL proceedings against the Russian Federation under the Energy Charter Treaty, arising from the expropriation of Yukos Oil.
- Representing a gold mining company in an LCIA arbitration, arising from a failure to supply power to a mine located in an African state.
- Representing four sets of different investors in renewable energy projects in four separate ICSID arbitration proceedings against the Kingdom of Spain under the Energy Charter Treaty, arising from changes to the Spanish renewable energy incentive framework.
Capabilities
Credentials
Education:
- BPP Law School - 2016 Legal Practice Course
- University of Law, London Moorgate - 2014 Graduate Diploma in Law
- University of Bristol - 2013 Bachelor of Arts
Admissions:
- England & Wales - Solicitor
News & Insights
Client Alert
UK Court of Appeal Affirms That Issue Estoppel May Preclude States from Re-Arguing State Immunity Issues in an Enforcement Context
Client Alert
UK Court of Appeal Confirms Sovereign States Are Not Immune from Enforcement Proceedings for ICSID Awards
Client Alert
UK to Update Arbitration Act and Join Hague Convention on Recognition and Enforcement of Foreign Judgments