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Colena Der

Colena Der

Partner, Taxation

Contact Information

cder@osler.com

tel: 403.260.7049

Office

Calgary

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Areas of Expertise
Bar Admission

Alberta, 2009

Education
  • University of Ottawa, LL.B.
  • University of Alberta, B.Sc. (Hons.) (Pharmacology)
Language(s)
English

Colena’s practice focuses on advising Canadian and foreign-based clients on the taxation of mergers and acquisitions, corporate reorganizations and employee and executive compensation matters, with an emphasis on the resource, emerging companies and technology sectors.  Her tax practice also includes the settlement of tax disputes with the Canada Revenue Agency.

Colena is a member of the Canadian Bar Association, Calgary Bar Association, the Canadian Tax Foundation and the Canadian Petroleum Tax Society. She was a former member of the Canadian Tax Foundation - Young Practitioners' Steering Committee (Calgary) and the Past-Chair of the Executive Committee of the Canadian Bar Association’s Taxation Specialists (South). 

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    Fairhaven Pharmaceuticals in its acquisition by Liminal BioSciences

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  • Canadian Pacific Railway’s US$500 million offering

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    The syndicate of agents in Canadian Pacific Railway’s $300 million Canadian offering

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    Greengate Power Corporation in its agreement with Copenhagen Infrastructure Partners to develop Travers Solar – Canada’s largest operating solar energy project

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    Steel Reef Infrastructure Corp. in its $500 million acquisition of natural gas infrastructure assets from Crescent Point Energy Corp.

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    SemCAMS Midstream ULC in its 50/50 joint venture with TransAlta Corporation to develop Kaybob South Cogen Facility

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    Xtract Technologies Inc. in its acquisition by Patriot One Technologies Inc.

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    Goldman Sachs Growth Equity in connection with Trulioo’s $70 million Series C financing

  • Tutela Technologies Ltd.

    Tutela Technologies Ltd. in its acquisition by Comlinkdata

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    Right-Health Inc. in its acquisition by Telus Corporation

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    Vendasta Technologies Inc. in its $40 million growth funding

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    Intelex in its $570 million acquisition by Industrial Scientific

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    SemCAMS Midstream in its $1.3 billion agreement with Keyera to build Canadian Liquids Pipeline System

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    Google Ventures in its US$15 million investment in CmdWatch Security

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    Pipestone Oil Corp. in its strategic merger with Blackbird Energy Inc. and $309.5 million in equity and debt financings to form Pipestone Energy Corp.

    • ScribbleLive Rock Content in its acquisition of ScribbleLive
    • Mitel Networks on its acquisition of Aastra Technologies
    • Angle Energy Inc. In its proposed $576 million acquisition by Bellatrix Exploration Ltd.
    • Total E&P Canada Ltd. on the agreement to sell its 49% interest in the Voyageur Upgrader Limited Partnership to Suncor Energy Inc.
    • Greengate Power Corporation on all aspects of the development of the 300 MW Blackspring Ridge Wind Project and the sale of the Blackspring Ridge Project to Enbridge Inc. and EDF EN Canada Inc.
    • Golden Crescent Investments Ltd., an affiliate of Citadel Capital, in its proposed sale of National Petroleum Company Egypt Limited, to Sea Dragon Energy Inc.
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    • Glam Media Inc. In its cross border acquisition of BBS Media
    • Investment Technology Group, Inc. In its $38.5 million acquisition of a private independent research brokerage firm
    • Temple Energy Inc. In its “merger of equals” with Cequence Energy Ltd.
    • Kulczyk Oil Ventures Inc. In its European initial public offering and acquisition of Triton Hydrocarbons Pty Ltd., an Australian company
  • Find More

  • International Tax Review: Recognized in Women in Tax as a Highly Regarded lawyer

  • Law Society of Alberta
  • Canadian Bar Association
  • Canadian Tax Foundation
  • Canadian Petroleum Tax Society