Pinsent Masons LLP

Pinsent Masons LLP is routinely instructed by leading independents and supermajors on high-value M&A, disposals, and cross-border transactions across Europe, Africa, and the Americas. Team head Rosalie Chadwick epitomises the group’s oil and gas M&A strength and led on the landmark £754m business combination between Ithaca Energy and Eni’s UK upstream assets. Shirley Allen, who has over 25 years of private practice and in-house experience, is recognised for her regulatory insight and adept handling of complex commercial contracts. Bruce McLeod is frequently active on multi-jurisdictional M&A and joint ventures, while Rachel Warner has developed a strong track record in domestic and UK-wide mergers and disposals. Neil Hehir, Heather Hutcheon and Ailie Isdale also come recommended. In May 2025, Chris Sawyer joined the team.