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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.

Awards & Recognitions
01
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    "CMS has a great understanding of the local UK energy market and utility landscape."
    Chambers, 2025
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    "The CMS team does not miss a single deadline or miss responding to an email. They are so responsive and on top of our needs."
    Chambers, 2025
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    "CMS is just brilliant in having meetings with stakeholders and upskilling them in relation to the mechanics of how contracts work."
    Chambers, 2025
  • Quote
    "Top-tier knowledge of the oil and gas sector both within the UK and internationally. A team that collaborates with our in-house team seamlessly and makes life easy for our in-house team."
    Legal 500, 2025
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    "Exceptionally pro-active and knowledgeable oil and gas team."
    Legal 500, 2025
  • Quote
    "A great team filled with very capable, knowledgeable lawyers who are willing to go the extra mile to ensure their clients' needs are met."
    Legal 500, 2025
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    "It's a strong team that is very commercially minded."
    Chambers, 2024
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    "CMS has a strong multi-disciplinary team of specialists which enables them to tackle complex problems."
    Chambers, 2024
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    "CMS always adopts a can-do, proactive approach to finding solutions."
    Chambers, 2024
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    "CMS's renewable team is very highly regarded in the sector."
    Chambers, 2024
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    "The team is very pragmatic and professional. They bring lots of experience, but they're not averse to thinking outside the box and coming up with novel solutions."
    Chambers, 2024
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    "The team is extremely helpful and quick to respond."
    Chambers, 2024
  • Quote
    "The firm's services have always gone the extra mile to support."
    Chambers, 2024
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    "CMS understands the industry, our business and can give relevant, concise and commercial advice."
    Chambers, 2024
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    "The team is always proactive and responsive."
    Chambers, 2024
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    "The CMS oil and gas team are true experts. They are not just M&A or projects lawyers serving clients in the oil and gas industry; they live and breathe the issues, opportunities and experiences that their clients in the industry face."
    Legal 500, 2024
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    "The team does not just churn deals – they are at the forefront of advising on all of the “hard things” facing the oil and gas industry in today’s economic and geopolitical climate."
    Legal 500, 2024
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    "The partners in the oil and gas team are incredibly easy to work with. They are approachable and available, you don’t need to spend time getting them up to speed, because they just “get it”."
    Legal 500, 2024
  • Quote
    "Deep industry knowledge allied with an excellent understanding of the client."
    Legal 500, 2023
  • Quote
    "CMS is completely unique in this space. They understand the O&G sector deeply, with many of their key partners and associates having gained experience working on a secondment basis in O&G companies’ legal teams. They are a creative, solution-driven, hard-working, approachable and personable team of lawyers."
    Legal 500, 2023

Explore more

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Energy: Requirements of a trust

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The UK moves closer to merchant CCUS models: non‑pipeline transport of carbon dioxide

16 Feb 2026 12 min read

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15 Jan 2026 1 min read

Office of Gas and Electricity Markets

15 Jan 2026 3 min read

North Sea Transition Authority

15 Jan 2026 3 min read

Energy and insolvency: When may an insolvent company pay a dividend?

14 Jan 2026 12 min read

Events

  • United Kingdom
    08 Apr 2026

    CMS at Fordham IP & Policy Conference

  • United Kingdom
    13 Apr 2026

    Skills for Future Facing Teams: Creating a team culture of coaching and feedback

  • United Kingdom
    16 Apr 2026

    Green claims in focus

  • United Kingdom
    21 Apr 2026

    On the Pulse webinar series 2026 - Spring/Summer

  • United Kingdom
    21 Apr 2026

    Future of Renewables Spring Seminars

  • United Kingdom
    22 Apr 2026

    Sustainable Buildings: Taking the Temperature in 2026

  • United Kingdom
    23 Apr 2026

    ESG: Breaking Down the Buzzword

  • United Kingdom
    28 Apr 2026

    Strategic expansion to India: A new chapter for UK higher education

  • United Kingdom
    28 Apr 2026

    IP Insights webinar series 2026

  • United Kingdom
    29 Apr 2026

    CMS Update Morning: Media, Sports and Entertainment

  • United Kingdom
    02 May 2026

    CMS at INTA 2026

  • United Kingdom
    05 May 2026

    Cross-Border Financial Services 2026 webinar series

  • United Kingdom
    13 May 2026

    2026 ITechLaw World Technology Law Conference in Chicago

  • United Kingdom
    21 May 2026

    Navigating Global Uncertainty: Practical Insights for In-House Teams

  • United Kingdom
    28 May 2026

    CMS International Crypto Forum 2026

Local market knowledge. Global outlook

We provide future-facing legal advice to help your organisation thrive. Combining local market knowledge and a global perspective, and with lawyers in locations worldwide, your organisation benefits from the expertise it needs, even across borders.

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