Band 1
Band 4
About
Provided by Maureen Killoran KC
Practice Areas
Maureen is the firm's national Co-Chair and a member of the firm’s Partnership Board. Maureen practices out of both our Vancouver and Calgary offices and is the former Managing Partner of Osler's Calgary office (2011-17). She is a trusted advisor to major commercial clients and regularly advises both public and private sector interests.
Maureen’s litigation practice is devoted to complex commercial disputes with particular emphasis on the resource industry. She is a seasoned trial and appeal lawyer with extensive experience in commercial arbitrations (domestic and international) and other forms of dispute resolution. Maureen represents a diverse group of clients and has broad experience in resource industry disputes acting on major pipeline, hydroelectric, oil sands, midstream, upstream and downstream disputes.
A significant portion of Maureen’s practice involves litigation related to major resource and transportation projects and undertakings. She routinely appears on matters of judicial review, regulatory appeal, and environmental, administrative, constitutional, Charter and indigenous claims in Federal and Provincial Courts across the country.
Numerous industry publications describe Maureen as being widely regarded by clients and peers as one of Canada’s top litigators in the areas of energy & resource, indigenous, and commercial litigation, appellate advocacy, and constitutional and administrative law:
Benchmark Litigation notes that Maureen is described as: “a real force in the litigation community, taking charge and really appearing front and centre on big actions …” "She is very collaborative and really knows her stuff. She is very good at getting things under control."
Chambers and Partners notes: “…a very capable litigator … does a good job of moving matters forward.”
Career
University of Calgary, LL.B.
Queen’s University, B.A. (Hons.)
Bar Admission: Alberta, 1995 | Ontario, 2001 | British Columbia, 2015
Professional Memberships
Law Societies of Alberta, Ontario and British Columbia
Canadian Energy Law Foundation
Rocky Mountain Mineral Law Foundation
Chambers Review
Canada
Maureen Killoran KC is recognised for her handling of major litigation files in the energy and natural resources sector. Her experience includes representing both public bodies and private clients in constitutional challenges, appellate proceedings and judicial reviews, alongside her commercial dispute resolution practice. She is Osler, Hoskin & Harcourt's national co-chair and splits her time between the Calgary and Vancouver offices.
Maureen Killoran KC is a highly regarded litigator who currently acts as Osler's national co-chair. Practising out of the firm's Calgary and Vancouver offices, she is especially skilled at representing clients from the energy sector as well as governmental entities on cases relating to Indigenous land title infringements.
Strengths
Provided by Chambers
"Maureen is very responsive, very competent. eloquent in advocacy and gives good advice."
"Maureen is an excellent lawyer who can be tough and tactful simultaneously. She puts our interests first and finds a solution to meet the entire situation."
"Maureen is the best!"
"Maureen consistently provides outstanding service and representation."
"Maureen is excellent. She often thinks outside the box and provides sound, thoughtful and practical advice."
"Maureen is very responsive, very competent. eloquent in advocacy and gives good advice."
"Maureen is an excellent lawyer who can be tough and tactful simultaneously. She puts our interests first and finds a solution to meet the entire situation."
"Maureen is the best!"
"Maureen consistently provides outstanding service and representation."
"Maureen is excellent. She often thinks outside the box and provides sound, thoughtful and practical advice."
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Osler, Hoskin & Harcourt LLP
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