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Mark Levy QC

Partner, global head of international arbitration


Levy Mark
Mark Levy QC

Partner, global head of international arbitration


Mark Levy is Head of Allen & Overy's International Arbitration Group. Based in London, and with over 20 years of arbitration experience. Mark acts as lead counsel in international commercial arbitrations, gas pricing disputes and investment treaty claims.  He has experience of conducting arbitrations under a wide range of rules including those of the ICC, LCIA, ICSID, SCC and SIAC, as well as the UNCITRAL Rules.

Mark has experience across a number of jurisdictions and sectors, including telecoms, construction and infrastructure, and heavy industry but he is particularly recognised in the market for his expertise in energy and natural resources disputes.  He regularly acts for many of the world's major energy companies, and is an authority on pricing disputes.  Indeed, he edited Gas Price Arbitrations: A Practical Handbook, which was the market's first book on the subject (published in 2014).

Routinely appearing as lead advocate in his cases, Mark has argued numerous cases before the world's leading arbitrators. He is particularly noted for his skills as a cross-examiner, in which context he has extensive experience cross-examining experts in the finance and energy sectors, including upstream and downstream disputes, as well as LNG price reviews.

His clients include energy majors, resources and infrastructure companies, telecoms operators and sovereign States (including the Islamic Republic of Pakistan, the Republic of Slovenia and the Republic of Cuba, among others).

Market Recognition includes:

Mark is a "really excellent tactician and a tenacious advocate." (Chambers UK 2018, International Arbitration: Commercial)

Mark Levy "is an accomplished advocate with significant experience in international energy disputes." (Chambers UK 2017, Energy & Natural Resources: Disputes)

"'Excellent advocate' Mark Levy advises an impressive list of clients ...... Market sources are quick to praise his 'strategic thinking'." (Chambers UK 2016, International Arbitration)

"Mark Levy is well regarded for his contentious energy practice and is experienced in issues including gas price arbitrations and investment treaty matters".  (Chambers UK 2016, Energy & Natural Resources: Disputes)

"Mark Levy specialises in disputes in the energy sector .... [and] is highlighted for his analytical skills, and is described as an 'excellent cross-examiner and strategic thinker'." (Chambers UK 2014, International Arbitration)

"Mark Levy is particularly highlighted for his expertise in the energy arena". (Chambers UK 2013, International Arbitration)

 Experience highlights include acting for

 Numerous energy companies - both buyers and sellers - in some of the most significant European gas price review disputes involving both LNG and piped gas

An energy supemjaor in arbitration with its JV partner in relation to a complex, ultra-deepwater exploration and drilling project in West Africa

A South American producer in a dispute concerning gas balancing arising out of a field in Argentina

JKX Oil & Gas in its investment treaty claims against Ukraine, relating to its investments there. The matter included securing an SCC emergency arbitrator order against Ukraine

Millicom International Cellular S.A. and its Senegalese subsidiary, Sentel GSM S.A., against the Republic of Senegal in an ICSID arbitration

AES in its claims against the Republic of Kazakhstan under the Energy Charter Treaty

The Republic of Pakistan in various investment treaty and commercial arbitration

A multinational petrochemicals company in an LCIA arbitration relating to a coal-to-liquids plant

A multinational oil and gas company in UNCITRAL proceedings in The Hague arising out of warranty claims following the sale of a chemicals company

The Republic of Slovenia in an ICSID arbitration under the Energy Charter Treaty and another bilateral treaty defending claims brought by HEP, the national electricity company of Croatia, and relating to the operation and ownership of a nuclear power plant

The Republic of Cuba in its challenge brought before the World Trade Organisation (WTO) against Australia's Tobacco Plain Packaging



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Admitted as solicitor, England and Wales, 1997

Queen's Counsel, March 2019


Degree, Oxford University

Undergraduate, English Literature, 1991