Deirdre Sheehan has joined the Calgary office of Canada’s Osler, Hoskin & Harcourt as a national co-chair of its regulatory, indigenous and environmental group.  

Sheehan, who was previously with Bennett Jones for more than 20 years and co-chaired the firm’s energy regulatory practice, has extensive experience advising and representing clients on the regulatory and environmental aspects of electricity, power, and other energy developments. She will lead the group along with Richard King and Sander Duncanson.