Ranking tables
Energy: Oil & Gas (Regulatory) | Canada
Nationwide - Canada
Rankings overview for Lawyers
Senior Statespeople
Band 1
- Bernard Roth Dentons Canada LLP8 Years Ranked
- Dennis Langen Stikeman Elliott LLP8 Years Ranked
- Lars H Olthafer Blake, Cassels & Graydon LLP9 Years Ranked
- Laura Estep Dentons Canada LLP8 Years Ranked
- Martin Ignasiak Bennett Jones LLP9 Years Ranked
- Terri-Lee Oleniuk Blake, Cassels & Graydon LLP7 Years Ranked
Band 2
Up and Coming
All Lawyers profiles
Senior Statespeople
S Randall W Block KCBorden Ladner Gervais LLP | Energy: Oil & Gas (Regulatory)2025 | Senior Statespeople | 9 Years RankedRandall Block KC maintains a highly respected litigation practice, which sees him act on regulatory matters within the oil and gas space. Based in Calgary, he frequently represents major energy clients before the Canada Energy Regulator in proceedings and disputes relating to construction, supply and environmental damages.
Band 1
1 Bernard RothDentons Canada LLP | Energy: Oil & Gas (Regulatory)2025 | Band 1 | 8 Years RankedCalgary-based Bernard Roth represents significant oil and gas clients before federal and provincial energy regulators in a wide array of mandates, including oil sands development and service agreements.1 Dennis LangenStikeman Elliott LLP | Energy: Oil & Gas (Regulatory)2025 | Band 1 | 8 Years RankedHighlighted for his background in engineering, Dennis Langen leads the firm's regulatory team out of Calgary. He routinely appears before regulators on oil and gas proceedings at the provincial and federal levels.1 Lars H OlthaferBlake, Cassels & Graydon LLP | Energy: Oil & Gas (Regulatory)2025 | Band 1 | 9 Years RankedLars Olthafer represents clients before energy regulators, demonstrating particular strength in land law matters arising from pipeline and project development. Utilising his background in engineering, the Calgary-based lawyer ably advises on a wide range of regulatory mandates arising from the oil and gas sector, including environmental compliance and First Nations consultation.1 Laura EstepDentons Canada LLP | Energy: Oil & Gas (Regulatory)2025 | Band 1 | 8 Years RankedLaura Estep frequently appears before the Canada Energy Regulator and Alberta Utilities Commission, advising oil and gas clients on facilities applications and disputes. She is based out of Calgary.1 Martin IgnasiakBennett Jones LLP | Energy: Oil & Gas (Regulatory)2025 | Band 1 | 9 Years RankedCalgary-based Martin Ignasiak has significant expertise advising oil and gas clients on regulatory matters relating to pipelines and oil sands projects, offering additional strength in environmental and Aboriginal law.1 Terri-Lee OleniukBlake, Cassels & Graydon LLP | Energy: Oil & Gas (Regulatory)2025 | Band 1 | 7 Years RankedTerri-Lee Oleniuk advises oil and gas sector clients on regulatory compliance, as well as on environmental and Aboriginal law, from her base in Calgary.
Band 2
2 Alan Ross KCBorden Ladner Gervais LLP | Energy: Oil & Gas (Regulatory)2025 | Band 2 | 7 Years RankedAlan Ross KC is well regarded for his representation across provincial and federal regulatory mandates. He is particularly well versed in handling issues in the midstream sector and those pertaining to natural gas. He serves as the regional managing partner of the firm's Calgary office.2 Brad GilmourOsler, Hoskin & Harcourt LLP | Energy: Oil & Gas (Regulatory)2025 | Band 2 | 9 Years RankedBrad Gilmour provides expertise in energy and environmental regulation, covering matters including facilities applications and compliance. He acts on behalf of private and public organisations out of the firm's Calgary office.2 Jeremy BarrettoCassels Brock & Blackwell LLP | Energy: Oil & Gas (Regulatory)2025 | Band 2 | 2 Years RankedJeremy Barretto of Cassels Brock & Blackwell LLP has a robust reputation for his regulatory and indigenous law practice, advising a number of major oil and gas clients on compliance and administrative challenges.2 Katie SlippBlake, Cassels & Graydon LLP | Energy: Oil & Gas (Regulatory)2025 | Band 2 | 5 Years RankedShe knows her practice area, has been very responsive at any time of the day and her input has been strategic and effective. She's a key resource to us in accomplishing some important milestones.2 Sander DuncansonOsler, Hoskin & Harcourt LLP | Energy: Oil & Gas (Regulatory)2025 | Band 2 | 6 Years RankedBased in Calgary, Sander Duncanson is noted for his robust oil and gas regulation practice, representing oil and gas clients before national and provincial regulators in facilities applications and environmental assessments.
Up and Coming
U Sean AssiéBennett Jones LLP | Energy: Oil & Gas (Regulatory)2025 | Up and Coming | 1 Years RankedSean Assié enjoys a burgeoning profile for his regulatory practice, with clients turning to him for his expertise in issues including rate setting, indigenous law and environmental work.