Regulatory, Indigenous and Environmental

Sunset on a beautiful landscape.

Osler’s Regulatory, Indigenous and Environmental Group possesses extensive knowledge and decades of accumulated experience advising clients on a broad range of issues. Relying on their own individual skills and drawing on each other’s expertise and experience, the team’s lawyers provide clients with thorough, comprehensive and seamless assistance.

Working as an integrated group across the country, Osler’s Regulatory, Indigenous and Environmental lawyers advise clients on their energy, natural resource and infrastructure matters including:

  • Mining
  • Pipelines
  • Electricity generation and transmission
  • Renewables Hydrogen facilities
  • CCUS infrastructure
  • Offshore drilling
  • Conventional oil and gas operations
  • Liquefied natural gas
  • Oil Sands
  • Gas gathering and storage facilities
  • Refineries and upgraders
  • Agri-food facilities
  • Forestry
  • Contaminated sites
  • Nuclear
  • Chemical Plants
  • Rail, transportation and port facilities

As environmental issues continue to be at the forefront of public and political discussion, there are increasing regulatory, civil and reputational risks and liabilities relating to projects, facilities and operations, as well as potential penalties for environmental offences in Canada. Governments at both the Federal and Provincial levels have increased their focus on environmental enforcement and are seeking stiff penalties for individuals and corporations that allegedly break environmental laws. Should you need assistance in this area the group can also help with:

  • Environmental litigation and dispute resolution
  • Responding to environmental incidents, regulatory inspections and investigations
  • Conducting internal investigations into potential environmental non-compliances
  • Environmental enforcement and defence of prosecutions


Richard J. King

Partner, Regulatory, Indigenous and Environmental


Sander Duncanson

Partner, Regulatory, Indigenous and Environmental


Deirdre A. Sheehan

Partner, Regulatory, Indigenous and Environmental


Shawn Denstedt, KC

Chair Emeritus


Jennifer Fairfax

Partner, Litigation; Regulatory, Indigenous and Environmental


  • Canada Growth Fund

    The Canada Growth Fund in its connection with its carbon credit offtake agreement and $200 million strategic investment in Entropy Inc.

  • First Quality Enterprises LLC

    First Quality Enterprises in its acquisition of Domtar’s Pulp and Paper Mill in Dryden, Ontario

  • Independent Electricity System Operator (IESO)

    The IESO in its procurement of seven new battery storage projects and two new natural gas-fired generators

  • TransAlta Corporation

    TransAlta Corporation in its acquisition of 50% interest in an early-stage pumped hydro energy storage development project

  • Kinross Gold Corporation

    Kinross Gold Corporation in its US$1.4 billion acquisition of Great Bear Resources

  • Alberta Court of Appeal Clarifies Quarry Assessment Regime

    The Alberta Court of Appeal in the successful appeal of the Quarry Assessment Regime

  • Imperial Oil

    Imperial Oil in its pipeline approval (leave to construct) from the Ontario Energy Board

  • KKR

    Acting for KKR and AIMCo in their joint acquisition of a combined 65% equity interest from TC Energy in the $6.8B Coastal GasLink Pipeline Project

  • Aura Power Renewables Ltd.

    Aura Power Renewables Ltd. in its Fox Coulee Solar Project approval by the Alberta Utilities Commission

  • innogy SE

    innogy SE in its decision to construct two solar projects in Canada

  • Equinor Canada Limited

    Equinor Canada Limited in the environmental assessment, regulatory and indigenous relations matters related to the potential Bay du Nord offshore oil project

  • TransAlta Renewables Inc.

    The underwriters in the $150 million bought deal offering of TransAlta Renewables Inc. common shares by way of a prospectus supplement filed on June 15, 2018.

  • Prosper Petroleum Limited

    Prosper Petroleum Limited in its approved Rigel Oil Sands Project

  • TC Energy

    TC Energy in its approved North Montney Mainline Project

  • TC Energy

    TC Energy in its application of the Dawn Long Term Fixed Price service

  • Kinder Morgan Canada Limited

    Syndicate of underwriters co-led by Scotia Capital Inc. CIBC World Markets Inc., RBC Dominion Securities Inc. and TD Securities Inc. in the $300 million public offering of preferred shares of Kinder Morgan Canada Limited

  • Kinder Morgan Canada

    National Energy Board Recommends Approval of the $6.8-billion Trans Mountain Expansion Project

  • McCain Foods Limited

    McCain Foods Limited in obtaining environmental and regulatory approvals

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