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Oil & Gas lawyers

The oil and gas industry is a challenging and exciting sector which has far reaching effects on the world we live in.

The top tier CMS Oil & Gas Team is the largest UK-based team dedicated to this industry, providing advice to clients all around the world, guiding them through all the problems and pitfalls they face. We advise on all aspects of the industry; upstream, downstream, LNG, platforms, pipelines, FPSOs, shipping and transportation, gas storage, supply chain management, decommissioning, M&A and financing included.

Acting for five of the seven ‘super major’ oil and gas companies, a host of ‘majors’, NOCs, and ‘independents’, as well as contractors and financial institutions, our Oil & Gas Team is widely recognised as a market leader.

CMS advises clients on oil and gas M&A transactions across the world. We act on deals that encompass all of the major purchase and divestment structures in the oil and gas marketplace, ranging from smaller-scale farm outs to high value, multi-jurisdictional corporate and asset transactions.

The CMS team has deep experience in advising on global oil and gas projects and supply chain management. Our lawyers have advised on projects ranging from FPSO developments, trans-national crude oil and gas pipelines and major LNG infrastructure developments to onshore gas processing plants.

CMS has considerable experience of advising clients on LNG and other gas monetisation projects worldwide, offering specialist legal expertise from wellhead to burner tip.

CMS is highly experienced in drafting and negotiating oil, gas, LNG and LPG sale and purchase agreements.

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Picture of Penelope Warne
Penelope Warne
The Seni­or Part­ner
Chairman of the UK LLP Board and Head of Energy
United Kingdom, London
Penelope Warne is The Senior Partner and Chairman of the UK Board. She is also Head of Energy. Penelope, an oil and gas specialist, joined the firm in 1993 to set up the Aberdeen office and has a...
Picture of Stephen Millar
Stephen Millar
Man­aging Part­ner
United Kingdom, London
Stephen Millar is the Managing Partner for CMS based in the UK and is responsible for the management of the firm across the UK, CEE, the Middle East and Asia. He is also a member of the CMS...
Simpson, Paul - CMS-GBR
Paul Simpson
United Kingdom, London
Paul Simpson is a Project and Energy Finance partner based in the Finance Practice Group in London. Paul has wide-ranging experience on energy financing transactions (project financing, reserve ...
Helen Machin
Helen Machin
United Kingdom, Aberdeen
Helen Machin is a partner in the Corporate Group based in the Aberdeen office. She is involved in the provision of legal and deal management services in the UK merger and acquisitions and private ...
Picture of Eleanor lane
Eleanor Lane
United Kingdom, Glasgow
Eleanor Lane is a partner in CMS UK’s Infrastructure & Projects Team. She has particular expertise in the transport and maritime sectors, often advising on projects of unusual complexity and/or n...
Picture of Emma Riddle
Emma Riddle
United Kingdom, London
Emma Riddle is a partner in our international Finance practice, specialising in restructuring and insolvency.  Emma has experience acting for creditors, debtors and other stakeholders in distressed ...
Picture of Jenny Allan
Jenny Allan
United Kingdom, Edinburgh
Jenny Allan is a partner specialising in Banking and Finance. She has a particular focus on energy finance, including oil & gas and renewable projects. Jenny is dual-qualified in Scotland and England...
Picture of Ian Herbert
Ian Herbert
United Kingdom, London
Ian Herbert is a partner in CMS’ Oil & Gas Team and advises clients on a wide range of energy related matters with a particular focus on oil and gas infrastructure projects and supply chain c...
Picture of Andrew Shaw
Andrew Shaw
United Kingdom, London
Andrew Shaw is a partner in the Oil & Gas Team and has more than 15 years’ experience in oil & gas law. He has advised various junior, major and super-major oil & gas companies, utilities and funds i...
Gordon Hay
Gordon Hay
Head of Banking & Finance, Scotland
United Kingdom, Edinburgh
Gordon is head of Banking & Finance in Scotland. The CMS Banking and Finance Team is the largest in Scotland and has been top ranked by both Chambers and Legal 500 for a number of years. Gordon has a...