Osler News

Energy lawyers George Antonopoulos and Mauryah McLaughlin join Osler’s Calgary office as partners Energy lawyers George Antonopoulos and Mauryah McLaughlin join Osler’s Calgary office as partners

October 6, 2025 2 MIN READ
People Mentioned
George Antonopoulos

Partner, Energy, Calgary

Mauryah McLaughlin

Partner, Energy, Calgary

Osler is pleased to welcome energy law lawyers George Antonopoulos and Mauryah McLaughlin to the firm’s national Energy Group, ranked Band 1 in Chambers Canada, one of the leading legal directories in the world. The new partners will be based in Calgary.

George’s practice focuses on complex private mergers and acquisitions in the energy sector. He advises clients in the structuring, ownership and operation of energy infrastructure projects, including joint venture arrangements, commodity transportation, terminalling and storage arrangements, corporate re-organizations, and energy project development.

George acts for companies across the energy sector value chain, including upstream, midstream and downstream oil and gas companies, as well as for emerging players in the renewables and energy innovation and transition sectors.

Mauryah’s practice is focused on mergers and acquisitions. She leads complex, high-value transactions both in Canada and internationally, guiding clients through every phase of a deal. While being seated in Calgary has given Mauryah a robust presence in the energy sector (upstream and midstream oil and gas, renewables, and energy infrastructure), her true value to clients is an M&A skillset that is agnostic to industry and allows her to service clients across the country.

“The expertise George and Mauryah bring to Osler will be invaluable in supporting our clients in their business-critical projects and transactions,” says Craig Spurn, partner, Corporate and Co-Chair of the Energy Group. “We are thrilled to add their extensive experience in a variety of mergers and acquisitions activities to our already deep Energy Group.”

Sander Duncanson, Calgary Managing Partner, adds: “George and Mauryah are tremendous additions to our Calgary office and national Energy practice. They are both very highly regarded in the market and complement our existing team of market-leading Energy practitioners in Calgary. With their addition, the depth and expertise of our Energy practice in Calgary is unparalleled.”

People Mentioned
George Antonopoulos

Partner, Energy, Calgary

Mauryah McLaughlin

Partner, Energy, Calgary