Contact details

Cathal Leigh-Doyle

T: +44 20 7809 2658 M: +44 7540 155 833 Email Cathal | vCard Office: London

Cathal Leigh-Doyle Senior associate

Contact details

Cathal Leigh-Doyle

Cathal Leigh-Doyle
Senior associate

T: +44 20 7809 2658 M: +44 7540 155 833 Email Cathal | vCard Office: London

An international dispute resolution lawyer with a broad range of contentious experience especially within the energy and natural resources sectors. Cathal advises a range of industry leaders on disputes in the English courts and international arbitration. Cathal also frequently assists clients on non-contentious matters in relation to negotiating and drafting contractual documentation on high value, international and complicated projects.
  • Profile
  • Services
  • Sectors

With a strong international perspective, Cathal acts for clients in disputes before the English courts as well as in international arbitrations.

Cathal routinely assists large corporate clients across a broad range of contentious situations, in both a representative and advisory capacity, from internal investigations through to formal court or arbitral proceedings. He has also frequently carries out negotiations and mediations for his clients. 

Cathal is also instructed on new projects where he is engaged by clients to assist in negotiating and drafting contracts, especially relating to energy, construction and maritime projects. 

Cathal has worked with clients from a variety of sectors including renewable energy (wind, hydrogen and solar), tech, oil and gas, financial services and retail sectors. While qualified and practicing in England and Wales, Cathal is triple jurisdiction qualified being also qualified to practise law in New York and Ireland. Cathal is also a guest law lecturer at Solent University in Southampton, United Kingdom.

  • Dispute resolution
  • Oil and gas disputes
  • International arbitration

A L Challis Ltd v British Gas Trading Ltd [2015] EWHC 141 (Comm)

Successfully defended a multi-million pound breach of contract claim in the Commercial Court.

Endeavour Energy UK Ltd v Hess LTD (2017) QBD (Comm)

Represented an international oil and gas exploration company bring a multi-million claim for rig idle costs and breach of the JOA in the Commercial Court. Successfully defeated an application for security on the basis that the Defendant was already secured.

Cataline London Limited –and- (1) Kyriakos Kapsolokis (2) Anastasios Sofroniadis [2018] EWHC 1309 (QB)

Successfully defended a non-party costs order in relation to proceedings taken in England to register and enforce a judgment obtained in Greece.

Boskalis Offshore Marine Contracting BV –and- Atlantic Marine and Aviation LLP [2019] EWHC 1213 (Comm)

Successfully represented a vessel owner obtain three LLMA arbitration awards for payment of unpaid invoices. Successfully defended Charterers' challenge of the three arbitration awards in the English High Court under s69 of the Arbitration Act 1996.

Drilling company

Represented an international oil and gas drilling company bring a breach of contract claim in the ICC for the non-payment of drilling fees.

Contractor

Represented an EPCI contractor in relation to disputes with subcontractors in relation to; insolvency issues, requests for additional time and costs, and quality of production.

Creditors

Advised an international creditor issue a statutory demand and ultimately commence winding up proceedings against an English debtor.  

More: Dispute resolution

 

A L Challis Ltd v British Gas Trading Ltd [2015] EWHC 141 (Comm)

Successfully defended a multi-million pound breach of contract claim in the Commercial Court.

Endeavour Energy UK Ltd v Hess LTD (2017) QBD (Comm)

Represented an international oil and gas exploration company bring a multi-million claim for rig idle costs and breach of the JOA in the Commercial Court.

Drilling company

Represented an international oil and gas drilling company bring a breach of contract claim in the ICC for the non-payment of drilling fees.

Oil and gas company

Represented an oil and gas company in an ICC arbitration in relation to the operator's obligations when selecting a suitable decommissioning rig under a joint venture agreement. 

More: Oil and gas disputes

 

Drilling company

Represented an international oil and gas drilling company bring a breach of contract claim in the ICC for the non-payment of drilling fees.

Boskalis Offshore Marine Contracting BV –and- Atlantic Marine and Aviation LLP [2019] EWHC 1213 (Comm)

Successfully represented a vessel owner obtain three LLMA arbitration awards for payment of unpaid invoices. Successfully defended Charterers' challenge of the three arbitration awards in the English High Court under s69 of the Arbitration Act 1996. 

Vessel charterer

Represented a charterer in a LMAA arbitration for breach of charterparty in relation to the overconsumption of fuel.

Vessel owner

Represented owners in a LMAA arbitration for breach of charterparty in relation to unpaid invoices.

Oil and gas company

Represented an oil and gas company in an ICC arbitration in relation to the operator's obligations when selecting a suitable decommissioning rig under a joint venture agreement. 

  • Energy and natural resources
  • Oil and gas
  • Shipping
  • Construction and engineering
  • Technology

Green hydrogen developer

Represented a UK green hydrogen developer in several negotiations involving (i) pre-feasibility agreements, (ii) full feasibility agreements, (iii) offtake heads of terms and (v) collaboration agreements.

International offshore windfarm contractor

Represented an international offshore windfarm contractor in a remeasurement dispute in relation to drilling penetration rates and pricing.

Offshore windfarm contractor

Represented an offshore windfarm contractor in relation to pollutant discharge dispute.

A L Challis Ltd v British Gas Trading Ltd [2015] EWHC 141 (Comm)

Successfully defended a multi-million pound breach of contract claim in the Commercial Court.

Endeavour Energy UK Ltd v Hess LTD (2017) QBD (Comm)

Represented an international oil and gas exploration company bring a multi-million claim for rig idle costs and breach of the JOA in the Commercial Court.

More: Energy and natural resources

Equipment provider 

Represented an offshore O&G equipment provider in relation to a $13 million breach of warranty dispute.

Decommissioning contractor

Represented decommissioning contractor in a multimillion pound contract for the decommissioning of a circa 30,000 tonne semi-submersible asset in the UK. This included representing decommissioning contractor in all negotiations with the yard, owner, sub-contractors and relevant government agencies.

Boskalis Offshore Marine Contractors v Atlantic Marine and Aviation LLP [2019] EWHC 1213 (Comm)

Successfully represented Atlantic Marine and Aviation LLP in three LMAA arbitrations for unpaid invoices. Subsequently successfully defended Atlantic Marine and Aviation LLP in the first SupplyTime 2017 reported case when two of the three arbitration awards were appealed to the English High Court under section 69 of the Arbitration Act 1996.

Multi-purpose offshore vessel owners

Successful represented vessel owner in disputing the findings of an Offshore Vessel Inspector for the Offshore Vessel Inspection Database. 

A L Challis Ltd v British Gas Trading Ltd [2015] EWHC 141 (Comm)

Successfully defended a multi-million pound breach of contract claim in the Commercial Court.

Endeavour Energy UK Ltd v Hess LTD (2017) QBD (Comm)

Represented an international oil and gas exploration company bring a multi-million claim for rig idle costs and breach of the JOA in the Commercial Court.

Drilling company

In an ICC arbitration, represented an international oil and gas drilling contractor in relation to a £500,000 breach of contract claim for the non-payment of invoices.

More: Oil and gas

A -v- B

Successfully represented vessel owner obtain an urgent injunction in the English High Court against a Norwegian shipyard and successfully maintained the injunction on two return dates.

Heavylift vessel owner

Successfully represented a heavylift vessel owner in a $19 million LMAA arbitration in relation to demurrage and non-payment of invoices.

Boskalis Offshore Marine Contracting BV –and- Atlantic Marine and Aviation LLP [2019] EWHC 1213 (Comm)

Successfully represented a vessel owner obtain three LLMA arbitration awards for payment of unpaid invoices. Successfully defended Charterers' challenge of the three arbitration awards in the English High Court under s69 of the Arbitration Act 1996.

Offshore windfarm support vessel owner

Represented vessel owner in dispute with national government body in relation to seafarer documentation and visa requirements 

DSV vessel charterer

Represented a charterer in a $35 million SIAC arbitration in relation to the termination of the chartparty.

Offshore construction vessel re-delivery dispute

Represented charterer in a $2.5 million re-delivery dispute with owners.

Bulk carrier vessel owner

Successfully represented a bulk carrier vessel owner in enforcing security and settling the quantum dispute after a collision.

More: Shipping

International EPCI contractor

Represented an international EPCI contractor in relation to all its construction project disputes with subcontractors in relation to insolvency, remeasurement, requests for additional time and costs and quality issues.

Concrete flange ovality dispute

Successfully represented contractor in a project critical construction dispute with employers about determining the ovality of the concrete flanges.

EPCI contractor

Represented EPCI contractor in delay dispute with sub-contractor.

International hardware owner and cloud distributor

Conducted a bribery investigation into the client's operations in the United Kingdom and America.

Offshore positioning technology

Represented a lessee in a US$35 million arbitration in relation to a software failure whereby the redundancy failed.

Technology provider

Represented a UK technology provider negotiate service supply and global distribution agreements.

Technology introducer agreement

Represented a UK technology agent negotiate an introducer agreement with an international technology provider. 

More: Technology

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