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Sub practice
Sub practice

Energy and Natural Resources Arbitration

Allen & Overy advises on high profile, high value disputes in the energy and natural resources sector, representing major international energy companies, financial institutions, State-owned entities and governments.

Working closely with our world-renowned Projects practice, we understand the complex commercial, socio-economic and regulatory environments in which our clients operate. 

With an outstanding track record of helping clients avoid and resolve disputes in this sector, our expertise covers international arbitration, investment treaty arbitration, litigation, negotiation, mediation and expert determination.

A&O’s team has extensive experience of representing clients in disputes arising across the energy and natural resources sector, including oil and gas, nuclear, renewables, and mining and metals. Our expertise spans the full hydrocarbon value chain and includes advising on disputes relating to downstream joint ventures, the construction of extraction facilities, abandonment and decommissioning obligations and power projects. Our global team has extensive international experience covering Europe, Africa, the Middle East, Asia and Latin America.

We have a leading investment treaty arbitration practice and are particularly recognised as market leaders and innovators in disputes arising under the Energy Charter Treaty, having brought the first ever claim under that treaty and advised on more cases since then than any other firm. 

Our market leading gas price review experts have been involved in many ground-breaking cases and our Global Co-Head of International Arbitration, Mark Levy QC, edited the world’s first textbook on the subject.

Our experience includes representing:

  • South Stream Transport, a Gazprom subsidiary, in its ICC arbitration with Saipem relating to a now-cancelled pipeline project to transport gas from Russia, under the Black Sea, to various European countries. More than EUR1.5 billion was in dispute and the case was ultimately settled.
  • BG and Reliance Industries in an UNCITRAL arbitration (valued at more than USD5bn) against the Government of India, regarding two oil and gas Production Sharing Contracts. Our clients have had two Indian Supreme Court judgments issued in their favour, and made successful challenges to the most recent final partial award in the English courts.
  • More than 30 international investors, in 12 separate Energy Charter Treaty claims against the Kingdom of Spain, concerning investments in renewable energy projects. We have so far achieved significant damages awards for our clients in six of these arbitrations, with others still pending. 
  • The Islamic Republic of Pakistan in defending two related UNCITRAL investment treaty arbitrations concerning gas import operations. Claims were dismissed entirely and the investors ordered to pay 90% of Pakistan’s costs. Challenge proceedings brought by the investors were defeated.  

News & insights

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Publications: 08 SEPTEMBER 2021

UK Hydrogen Strategy - Top ten takeaways

The UK Government’s Hydrogen Strategy (the Strategy) finally landed on 17 August 2021. It was much-delayed and highly anticipated. When it arrived, it promised a hydrogen revolution: an integrated and…

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Abstract spotlights

News: 06 JULY 2021

Allen & Overy PENRI Group wins ‘IJGlobal Asia Pacific Legal Adviser of the Year’ and ‘The Asset Asia Pacific Project Finance Law Firm of the Year’

Allen & Overy’s Asia Pacific Projects, Energy, Natural Resources and Infrastructure (PENRI) group has won both ‘Asia Pacific Legal Adviser of the Year and ‘Asia Pacific Project Finance Law Firm of the…

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solar power farm

News: 02 JULY 2021

Allen & Overy Advises on USD285 Million Solar and Storage Projects in Hawaii

Allen & Overy (“A&O”) today announced it advised Clearway Energy Group (“Clearway”) on the USD285 million transaction to finance two solar plus storage projects in O’ahu, Hawaii.

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Publications: 27 MAY 2021

Hitachi Metals: Essential Patents Recognised as Essential Facility in China

On 23 April 2021, the Ningbo Intermediate Court handed down the long-awaited decision in Ningbo Ketian Magnet Co., Ltd. v. Hitachi Metals, Ltd. 

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  1. Band 1, Dispute Resolution, Global-wide, Chambers Global 2019
  2. International Arbitration Firm of the Year, Benchmark Litigation Asia-Pacific Awards 2019
  3. Best Arbitration Team of the Year in Spain and Portugal, 2019 


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