Lisa O’Neill advises companies on a wide range of corporate and energy transactions, including mergers, acquisitions and divestitures, takeovers, joint ventures, re-organisations and commercial contracts. Lisa’s clients include major international and independent oil and gas companies, mining groups, corporates, infrastructure funds, financial institutions and private equity funds.

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  • Represented Praxair, Inc. in the $3.3 billion divestment of North American and South American assets by Praxair, Inc. and Linde AG to Messer and CVC Capital Partners Fund VII. The divestments were subject to regulatory approvals and required for the consummation of the US$90 billion Praxair-Linde merger
  • Advised on the €5 billion (US$5.85 billion) divestment of the majority of Praxair’s businesses in Europe to Taiyo Nippon Sanso Corporation, a company listed on the Tokyo Stock Exchange and majority owned by Mitsubishi Chemical Holdings Corporation

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  • Women In Business Law, Best in Mergers & Acquisitions, 2019
  • The M&A Advisor, “M&A Deal of the Year” International M&A Award Winner, 2019
  • Rated as Notable Practitioner in the IFLR1000 Financial & Corporate 2019
  • Recommended in Corporate and Commercial: M&A – mid-market in The Legal 500 UK 2018/2019

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University of East Anglia, LLB, Honours
University of British Columbia, LLB, Honours

England and Wales

Lisa O’Neill

Insights & Events / Media

London, United Kingdom / McDermott Event / January 26, 2017

International News / Autumn 2015

Oil & Gas Financial Journal / June 2015

Oil & Gas in Egypt