Dennis Langen

Dennis P. Langen Partner

Dennis Langen


  • University of Alberta (J.D. with distinction, 2002)
  • University of Alberta (B.Sc. with distinction, 1994)

Bar Admission

  • Alberta, 2003
Representative Work
  • AltaGas Canada Inc. in connection with its C$1.7B acquisition by the Public Sector Pension Investment Board and the Alberta Teachers' Retirement Fund Board.
  • Pembina Pipeline Corporation in its C$4.35B acquisition of Kinder Morgan Canada Limited and the U.S. portion of the Cochin Pipeline system.
  • Pipeline and midstream companies, oil and gas producers and marketers, and gas distribution utilities in connection with CER applications for, and complaints relating to, setting rates and revenue requirement, including cost of capital, for transmission pipelines; and in connection with CER applications to establish new services and to set tolls and tariffs for transmission pipelines.
See allRepresentative Work
  • Chambers Canada 2021 as a leading lawyer in Energy: Oil & Gas (Regulatory).
  • Chambers Canada 2021 as a leading lawyer in Energy: Provincial Regulatory & Litigation (Alberta).
  • The Canadian Legal Lexpert Directory 2020 as a leading lawyer in Energy (Electricity).
See allAccolades
Speaking Engagements
  • “Canada Energy Regulator: A rose by any other name - what does it do; how does it work?”, Energy Regulatory Forum, May 2018.
  • “Federal and Provincial Energy Regulatory Regimes in Alberta”, APEGA Luncheon Series, April 2015.
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