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Energy mergers and acquisitions

Shaping the future of energy supply


The often headline-grabbing global energy sector is subject to unceasing volatility, intense market pressures and regulatory controls. The market is more diverse than ever with new entrants, new deal techniques and new sources of finance. 

Within this constantly evolving environment corporates are investing in growth opportunities, entering new markets, recycling capital and refocussing portfolios.  

With more than 300 energy specialist lawyers, and with nearly all of our partners having been seconded into industry, we have a decades-long commitment to the oil & gas and power sectors. We combine industry knowledge and M&A expertise to work with clients to deliver successful outcomes with legal advice that is insightful, risk-focussed, market specific and cost-effective.

Recent Experience

Origin Energy

Advising on the sale of its conventional upstream oil & gas business Lattice Energy to Beach Energy for $1.585 billion.

Mercuria Energy Group

Advising on the reverse takeover to effect the combination of Petrolera El Trébol and Andes Energia, waiver of Rule 9 of the Takeover Code and readmission of the enlarged share capital of Phoenix Global Resources (formerly Andes Energia) on AIM.


Advising on its disposal by way of auction of a package of UKCS assets including over 80 licences in the West of Shetland, Southern and Central North Sea to Premier Oil group.


Advising on agreements with Kosmos Energy to acquire a 62% working interest, including operatorship, of Kosmos’ exploration blocks in Mauritania and a 32.49% effective working interest in Kosmos’ Senegal exploration blocks.


Advising on the disposal of its geothermal assets and related power business interests in Indonesia and the Philippines to Star Energy, AC Energy and Electricity Generating Public Company.

Diverse Knowledge, in-depth experience

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Related news and deals

21 September 2023

Anthony Patten joins Herbert Smith Freehills' Asia energy team in Singapore

23 August 2023

Andrew Blacoe to lead Asia Corporate practice at Herbert Smith Freehills

25 May 2023

Herbert Smith Freehills advises Origin on proposed A$18.7 billion acquisition by Brookfield Asset Management and MidOcean Energy

22 May 2023

Herbert Smith Freehills advises Mitsui E&P Australia on its divestment of Indonesian heavy oil assets