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One Essex Court

Chambers of Lord Grabiner QC

Work 020 7583 2000
Fax 020 7583 0118
London, Singapore

John McCaughran QC

Work 020 7583 2000
One Essex Court (Chambers of Lord Grabiner QC)


Barrister specialising in general contractual disputes, jurisdiction and conflict of law issues, professional negligence cases, arbitrations (a series of international arbitrations in the oil and gas industry; other commercial arbitrations both international and domestic), worldwide Mareva injunctions and disclosure orders. Recent work includes: Peter R Wilkinson v 1) West Coast Capital 2) Christopher S Gorman 3) James C McMahon 4) Thomas B Hunter 5) Jonathan D Elvidge 6) The New Gifts Company 2003 Ltd 7) The New Gadget Shop Ltd 8) The Gadget Shop Ltd [2005] EWHC 3009 (Ch) – unfair prejudice petition alleging diversion of corporate opportunity; British Gas Trading Ltd v 1) Amerada Hess 2) Perenco (UK) Ltd – dispute concerning gas supply contracts; British Gas Trading Ltd v Premier Power Ltd – dispute relating to gas supply contracts in light of Network Code changes; Taylor Thomson v 1) Christie’s 2) Marquess of Cholmondeley [2004] PNLR 42 whether auction house/seller are liable in respect of sale of antique vases; Npower v First Contact Ltd – concerning Commercial Agents Regulations, acting for a large firm of international accountants in two actions for professional negligence brought against them by Lloyd’s insurance syndicates, representing a firm of City solicitors being sued for professional negligence.


Qualified 1982, Gray’s Inn, bencher.



London Bar

Commercial litigation

Within: Leading Silks

John McCaughran QC - One Essex Court ‘ Combines great legal intelligence and knowledge with commerciality and common sense. ’

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Within: Leading Silks

John McCaughran QC - One Essex Court ‘ A leading advocate in this area who combines great intelligence with commerciality. ’

Within: Energy

One Essex Court is 'the pre-eminent set for high-value and complex commercial disputes, including those in the energy sector'. The set is 'highly-regarded in China and Asia' and 'its work ethic and the excellence of its work are hard to fault'. Led by Lord Grabiner QC, who is 'a force of nature and is still battling hard in big cases', the set has leading lights such as John McCaughran QC, who acted for Shell International UK in a dispute arising out of a gas sale agreement with British Gas Trading Limited. Laurence Rabinowitz QC, leading Douglas Paine, acted for co-defendant Esso in the same case.  Daniel Toledano QC act for investment bank Macquarie Capital (Europe) Ltd in a claim relating to the a  €1.6bn equity and debt financing raised for the Meg I/Merkur offshore windfarm project in the North Sea. 'Clerks elsewhere are all, to a degree, a throwback to a Victorian era, but at One Essex they are more modern in their approach', remarks one client.

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International arbitration: counsel

Within: Leading Silks

John McCaughran QC - One Essex Court ‘ Extremely impressive quality of work, availability and approachability. ’

Within: International arbitration: counsel

One Essex Court has an excellent reputation for international arbitration, and its clerking team is 'very efficient in finding appropriate barristers'. The set fields numerous top name silks and juniors with strong expertise in commercial arbitration and BIT claims. Recent highlights for members, such as John McCaughran QC and Nicholas Sloboda,  include successfully representing Israel Electric Corp, a defendant in East Mediterranean Gas v Egyptian General Petroleum Corp & Others. The set was recently boosted by the arrival of Alexander Gunning QC from 4 PUMP COURT.

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