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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 specializes in mediation and other forms of alternative dispute resolution. He has a track record of engineering successful outcomes for clients.

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.

‘Alistair Calvert is a standout litigator’ who understands ‘the legal dimensions of a case, and the commercial and human realities of a case.’
The Legal 500 United Kingdom, 2022


Recent Notable Matters

Leading Nigerian downstream oil and gas company — Two sets of related ICC arbitrations (now consolidated) 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 $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-publicized collapse of Afren Plc. Sums in dispute were in excess of $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



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




Good Faith in English Contract Law


Under English law, there is no general doctrine of good faith. This means that there is no general obligation to act in good faith during the negotiation of commercial contracts. The exceptions to this rule include where (a) the contract contains an express duty of good faith; (b) there is a contractual discretion and a term of good faith may be implied; or (c) the agreement in question is a ‘relational’ contract giving rise to an implied term of good faith. The term that will be implied will depend on the express provision in question, and the contract as a whole.




Chambers UK
Energy & Natural Resources: Disputes, 2022 (Up and Coming, 2022)
The Legal 500 United Kingdom
Dispute Resolution – Commercial Litigation: Premium, 2022; Dispute Resolution – International Arbitration; 2022; Finance – Emerging Markets, 2022; Projects, Energy and Natural Resources – Oil & Gas, 2022