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Energy & Climate Change lawyers

The energy and climate change sector, a key driver of the global economy, is affected by and affects global geopolitics, economics and regulation. You require advisors who not only understand your industry but also work on cutting edge issues with leaders of energy companies, regulators, governments, industry bodies and investors.

Our team works globally within every part of the energy sector, including upstream and downstream oil and gas, electricity in all its forms, including generation, networks, wholesale and retail markets, and nuclear and renewables, including solar and other green energy and clean tech. Over the last 25 years, our experts have helped shape the sector by creating the legal frameworks upon which many of your markets are based.

Whether you are a NOC, IOC, independent, electricity company, investor, government or financial institution, or contractor, we have the energy and climate change specialists to meet all your strategic challenges globally. Our multi-disciplinary team has helped shape the legal framework for the oil and gas industry in many jurisdictions and was among the first to advise on industry-shaping reforms such as the historic energy and climate change sector restructuring in Mexico. We also work on M&A, projects and financings in the oil and gas, power and renewables sectors across the globe. This collective experience means we can pre-empt and provide answers to the commercial, risk and regulatory issues you face in the energy sector.

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Picture of Penelope Warne
Penelope Warne
The Seni­or Part­ner
Chairman of the UK LLP Board and Head of Energy & Climate Change
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 strong...
Millar, Stephen
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 board.Stephen...
Nick Blair
Nick Blair
Part­ner
United Kingdom, London
Nick Blair is a partner in the Corporate Group, specialising in mergers and acquisitions, debt and equity investments, joint ventures and reorganisations. He advises clients across a variety of sectors,...
Picture of Jonathan Woolf
Jonathan Woolf
Part­ner
United Kingdom, London
Jonathan Woolf is a partner focusing on oil and gas and energy M&A for corporates and financial sponsors. He joined CMS in November 2015 and has over 17 years of international M&A experience. He has executed...
Picture of Jenny Allan
Jenny Allan
Part­ner
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 and...
Picture of Emma Riddle
Emma Riddle
Part­ner
United Kingdom, London
Emma Riddle is a partner in our international Finance practice, specialising in restructuring and insolvency. Emma joined CMS in 2010 and relocated to Rio in 2015.Emma has experience acting for creditors,...
Picture of Philip Duffield
Philip Duffield
Part­ner
United Kingdom, London
Philip Duffield is a partner in the Energy, Projects & Construction group. He specialises in advising sponsors, lenders and the public sector on the construction, operation, commercial and financing aspects...
Sarah King
Sarah King
Part­ner
United Kingdom, London
Sarah is a partner embedded within our market leading CMS Energy & Climate Change Team and has built up over 10 years’ experience advising on Energy infrastructure projects across their lifecycle. Our...
Picture of Ian Herbert
Ian Herbert
Part­ner
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 contracts,...
Picture of Andrew Shaw
Andrew Shaw
Part­ner
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 in...