PRESS RELEASE
7 October 2025

Energy Lawyers George Antonopoulos And Mauryah McLaughlin Join Osler’s Calgary Office As Partners

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Osler, Hoskin & Harcourt LLP

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Osler is a leading law firm with a singular focus – your business. Our collaborative “one firm” approach draws on the expertise of over 400 lawyers to provide responsive, proactive and practical legal solutions driven by your business needs. It’s law that works.
Osler is pleased to welcome energy law practitioners 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
Canada

Osler is pleased to welcome energy law practitioners 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. George and Mauryah will be based in Calgary.

George's practice is focused 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."

If you have any questions or would like more information, please contact Craig Spurn at cspurn@osler.com or 403.260.7012. If you would like to reach George directly, you can contact him at gantonopoulos@osler.com or 403.592.7166. If you would like to contact Mauryah directly, you can contact her at mmclaughlin@osler.com or 403.592.7165.

Contributor

Osler is a leading law firm with a singular focus – your business. Our collaborative “one firm” approach draws on the expertise of over 400 lawyers to provide responsive, proactive and practical legal solutions driven by your business needs. It’s law that works.

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