Osler, Hoskin & Harcourt LLP

Osler, Hoskin & Harcourt LLP boosted its already formidable transactional firepower during 2023 with the hire of Vivek Warrier, formerly co-head of Bennett Jones LLP’s energy practice. Other go-to commercial energy partners include high-profile specialist Janice Buckingham, group head Craig Spurn and Simon Baines. The firm also brings to bear impressive regulatory capability under the combined leadership of regulatory, Indigenous and environmental co-chairs Richard King, who is based in Toronto; Sander Duncanson; and Deirdre Sheehan, who recently joined from Bennett Jones. Additionally, seasoned expert Shawn Denstedt KC is a useful resource on complex cases. Among its recent regulatory mandates, next-generation partner Duncanson advised Suncor on its proposals for the C$1bn Base Mine Extension, a new oil sands mining project. Regulatory partners Martin Ignasiak and Jessica Kennedy left for Bennett Jones LLP. Named practitioners are based in Calgary unless otherwise stated.