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About Alistair

Alistair Calvert helps clients resolve disputes in the energy and infrastructure sectors, with a focus on disputes related to projects in the oil and gas, power, and renewables space.  He has acted on disputes relevant to all aspects of projects including procurement, engineering, operational, and financing matters.

Alistair’s practice encompasses high value international arbitration and litigation.  He has over 15 years’ experience acting on international arbitrations and conducts his own advocacy.  He also provides advice on the management of legal risk during pre-action negotiations and specialises in mediation and other forms of alternative dispute resolution.  He has a track record of engineering successful outcomes for clients.

Alistair also represents clients in issues concerning civil fraud, anti-bribery and money laundering obligations, and in related investigations.

Alistair is described by clients in The Legal 500 UK as “pragmatic and hands on” and as “a standout litigator”.  Alistair is ranked by Chambers and Partners.

"He's an excellent energy lawyer."
Chambers UK, 2023


Recent Notable Matters

Egyptian project company — repayment dispute under a subordinated loan agreement and sponsor undertakings

Supermajor — advice in respect of potential claims against trader for failure to deliver certain LNG cargoes

Nigerian oil & gas company — LCIA arbitration concerning contested sale and purchase obligations relating to crude offtake

International oil & gas company — dispute concerning payment provisions and decommissioning obligations in respect of an FPSO contract

Listed energy company — LCIA arbitration relating to claims made under warranties and indemnities in a share purchase agreement

Listed oil & gas company — ICC Emergency Arbitration seeking anti-suit relief

Independent energy company — conducting an internal investigation in respect of an unsubstantiated corruption allegation linked to a major transaction in Africa

International developer — disputes with government and contractor concerning delayed solar project

Leading Asian gas company — dispute with trader concerning the trader’s failure to supply contracted deliveries under a LNG sale and purchase agreement.  The dispute concerned issues of wilful misconduct and limitation of liability, it settled pre-arbitration.

US hedge fund — dispute concerning LNG spot trades (FOB and DES) under various LNG sale and purchase agreements

Leading Asian gas company — dispute with trader concerning purported force majeure in respect of a delivery of LNG cargoes under a long term swap agreement, the force majeure was resisted and the dispute successfully settled

Independent power company — advising on disputes concerning defects, delay, liquidated damages and termination issues arising from the construction of a power plant in West Africa

Independent power company — LCIA arbitration concerning disputed funding arrangements in respect of a West African power project

Leading Asian gas company — dispute with trader concerning the calculation of the ‘unbalanced amount’ under a long term LNG swap agreement.  The dispute concerns the trader’s failure to supply contracted deliveries, a purported force majeure, and issues of limitation of liability.

Independent oil company — claim concerning royalty entitlement in an Egyptian field

Leading Nigerian downstream oil and gas company — consolidated ICC arbitrations relating to the acquisition of strategic assets across several jurisdictions in West Africa, brought by the national oil and gas company of a West African state. Sums in dispute were in excess of US$400 million.*

Listed oil company — defending breach of warranty claims proceedings in the Commercial Court*

Oriental Energy Resources Limited — represented an indigenous Nigerian oil and gas exploration and production company, in English Commercial Court proceedings arising out of the well-publicised collapse of Afren Plc. Sums in dispute were in excess of US$1 billion.*

Listed international oil company — high-profile ICC arbitration regarding a dispute over cost sharing within a joint venture to develop an oil field offshore Ghana*

International oil and gas company — LCIA arbitration regarding a dispute concerning termination of an O&M contract, in connection with an oil field offshore Nigeria*

* Work completed prior to Bracewell

Publications and Speeches


Challenging Policy on Climate Change Grounds”, A version of this article was published by Energy Voice on April 19, 2022 and in Lawtexts Environmental Liability.

Good Faith in English Contract Law”, Energy Legal Blog®, February 28, 2022

“Rare Judgment from Commercial Court on Scope of AA 1996, s 32 and Its Interaction With AA 1996, s 72” Lexis Nexis, July 1, 2021.

Construction Disputes in Project Financing: Managing Conflicts of Interest Between Project Parties”, Project Finance International, May 2021.

"Arbitration in the energy sector—an introduction", LexisPSL, March 2021.

“Challenges in Arbitration”, LexisNexis Butterworths, November 2019.



St. Catharine’s College, University of Cambridge,
M.A., Law

Bar Admissions

Solicitor of the Senior Courts of England and Wales
Registered to conduct proceedings before the DIFC Courts





Performance Bonds – Call Me?

On-demand performance bonds are commonly used in international energy construction projects. They take the form of an undertaking by an issuing bank or financial institution, on behalf of an obligor, typically the contractor, to pay on demand a specific amount to a named beneficiary, typically the employer. Read the factors that an employer should consider when deciding whether to call a bond.



Chambers Global
UK - Energy & Natural Resources: Disputes, 2024
Chambers UK
Energy & Natural Resources: Disputes (Ranked, Up and Coming, 2022 - 2024)
The Legal 500 United Kingdom
Dispute Resolution - Commercial Litigation: Premium, 2022 - 2024; Dispute Resolution - International Arbitration, 2022 - 2024; Projects - Energy and Natural Resources: Power, 2024