Ted Thiessen*

Calgary

Vancouver

403.531.8737, 604.893.7632

[email protected]

Expertise Tax Oil & Gas Mining Energy Startups & Emerging Companies

Language(s) Spoken

English

*Ted J. Thiessen Professional Corporation

Ted Thiessen is a partner in the Calgary and Vancouver office and a member of the Tax Group. Recognized as a leading lawyer in the area of tax law by Best Lawyers in Canada (2019-2021), Ted regularly advises Canadian-based multi-national groups and private equity investors with respect to the tax aspects of corporate mergers and acquisitions, divestitures, reorganizations and financing transactions. Ted’s practice focuses on transactions involving the resource sector, and he represents a number of clients with upstream and midstream related assets and investments.

A secondary focus of Ted’s practice involves advising established and emerging businesses on the design and implementation of long-term incentive plans.

Expertise

Industries

Practices

Representative Matters

Tax counsel to Canadian FinTech company in connection with its IPO
Tax counsel to US-based acquiror of Canadian publicly traded company via an exchangeable share transaction
Tax counsel to US-based producer in its sale of Canadian oil sands and gas assets for total proceeds of $17 billion
Tax counsel to Canadian-based producer in connection with the sale of royalty interests for $1.8 billion
Tax counsel to Canadian environmental solutions company in connection with a $3.5 billion recapitalization transaction
Tax counsel to Canadian publicly traded pipeline company in connection with $3.2 billion corporate acquisition
Tax counsel to underwriters in connection a $175-million issuance of medium term notes by a publicly traded energy infrastructure company

Speaking Engagements

Resource Partnership Dissolutions

Canadian Petroleum Tax Society Fall Lecture Series (presenter)

Capital Gains Exemption

Canadian Petroleum Tax Society Fall Lecture Series (presenter)

Partnership Reorganizations and Wind-Ups

Tax Executives Institute (Calgary) (presenter)

The Tax Treatment of Intangibles

Canadian Petroleum Tax Society Annual Conference, (co-presenter)

The Functional Currency Rules: A Primer

Prairie Provinces Tax Conference, (co-presenter)

News

Rankings & Recognitions

Recognized in the 2025 Canadian Legal Lexpert Directory as a Consistently Recommended lawyer in the area of Corporate Tax
Recognized by Best Lawyers in Canada (2025) as a leading lawyer in the area of Tax Law
Recognized in the 2024 Canadian Legal Lexpert Directory as a Repeatedly Recommended Lawyer in the area of Corporate Tax
Recognized by Best Lawyers in Canada (2024) as a leading lawyer in the area of Tax Law
Recognized in the 2023 Canadian Legal Lexpert Directory as a Repeatedly Recommended Lawyer in the area of Corporate Tax
Recognized by Best Lawyers in Canada (2023) as a leading lawyer in the area of Tax Law
Recognized in the 2022 Canadian Legal Lexpert Directory as a Repeatedly Recommended Lawyer in the area of Corporate Tax
Listed in the Legal500 Canada 2022 as a Recommended Lawyer – Tax
Recognized by The Best Lawyers in Canada 2019, 2020, 2021 and 2022: Tax Law.

Community Involvement

South Bow River Softball Association (Coach)
Fish Creek Little League (Coach)

Directorships & Affiliations

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

Education & Admissions

2023

Called to the British Columbia Bar

2004

Called to the Alberta bar

2004

Bachelor of Laws University of Manitoba

2000

Bachelor of Arts (received the Gold Medal for highest standing in Classics)University of Manitoba

Publications

“The New National Program to Increase Investment in Clean & Renewable Energy“, Energy Regulation Quarterly (August 2023)
“In-brief: post acquisition planning in Canada”, Lexology (co-author)
“Q&A: tax on acquisitions in Canada”, Lexology (co-author)
“Canadian Tax – The 75% Wage Subsidy”, Gowling WLG Bulletin (co-author)
“Canadian Oil & Gas Law and Practice”, Chambers Global Practice Guide 2016 (coauthor)

Insights (6 Posts)View More

AI Data Centre Development in Alberta

AI is on the rise and data centres are needed. Alberta provides unique opportunities to develop AI data centres and McMillan has the expertise to get it done.

Jul 24, 2024

Budget 2024: Clean Energy Incentives and Resource Sector Measures

Budget 2024 prioritizes Canada’s transition to a net-zero economy and contains several measures aimed at facilitating that ongoing transition.

Apr 19, 2024

How to do it Right: Legal Necessities of Launching a Tech Start-up

An overview of the necessary legal components of tech start-ups.

Apr 8, 2024

Budget 2023: Clean Energy Incentives and Resource Sector Measures

Budget 2023, announced by the Federal Government on March 28, 2023, contains several measures aimed at facilitating Canada’s transition to a net-zero economy

Mar 31, 2023

CRA Issues Guidance on Critical Mineral Exploration Tax Credit and Certification Requirements

Canada Revenue Agency Issues Guidance on 30% Critical Mineral Exploration Tax Credit and Certification Requirements

Oct 19, 2022

Budget 2022: Significant Changes to the Flow-Through Share Program Unveiled

Budget 2022: Changes to the Flow-Through Share Program Unveiled

Apr 11, 2022

Deals & Cases (12 Posts)

McMillan Advises Resource Label Group on its Acquisition of Imprimerie Ste-Julie

On February 4, 2025, Resource Label Group, LLC completed its acquisition of Imprimerie Ste-Julie Inc, a Quebec corporation providing customized label solutions to customers in the food, beverage, pharmaceuticals, natural products and cosmetics industries.

Feb 4, 2025

McMillan Advises BlueMatrix LLC on its Acquisition of Street Context

On January 17, 2025, funds advised by BlueMatrix Parent, LP, a portfolio company of Thoma Bravo, completed the acquisition of Quantify Labs Inc. d/b/a/ Street Context

Jan 17, 2025

McMillan Advises Mallinckrodt plc on its Sale of Therakos

On December 4, 2024, Mallinckrodt plc completed its previously announced sale of its Therakos business to CVC Capital Partners.

Dec 4, 2024

McMillan Advises SK Capital on its Acquisition of Spectra Confectionery

On November 15, 2024, funds advised by SK Capital Partners, LP completed the acquisition of Spectra Confectionery Limited.

Nov 15, 2024

McMillan Advises Teck Resources on its US$1.38 Billion Cash Tender Offer

On July 17, 2024, Teck Resources Limited completed its US$1.384 Billion cash tender offers of its outstanding notes.

Jul 17, 2024

McMillan Advises Command Alkon on its Acquisition of Marcotte Systems

On July 8, 2024, Command Alkon, a portfolio company of software investor Thoma Bravo, completed the acquisition of Marcotte Systems.

Jul 8, 2024

McMillan Advises Taseko Mines in Filing its Cross-Border US$600 Million Base Shelf Prospectus and US$50 Million “At-The-Market” Offering

McMillan advised Taseko Mines Limited (“Taseko”) (TSX: TKO) in filing a US$600 Million base shelf prospectus in all provinces of Canada, except Québec, and a corresponding shelf registration on Form F-10 with the United States Securities and Exchange Commission.

May 3, 2024

Bonterra Resources Inc. Completes CAD$8.5 Million Private Placement

Bonterra Resources Inc. (TSXV: BTR.V) (“Bonterra”) announced the closing of a brokered private placement of hard-dollar and flow-through units for gross proceeds of approximately $8.5 million. Eight Capital (“Eight”) acted as the lead agent and sole bookrunner on the private placement.

May 3, 2024

Bonterra Resources Inc. Enters Into an Earn-In and Joint Venture Agreement with Osisko Mining Inc.

On November 28, 2023, Bonterra Resources Inc (TSXV: BTR) (“Bonterra”) executed a definitive earn-in and joint-venture agreement (the “Agreement”) with Osisko Mining Inc. (“Osisko”) for Bonterra’s Gladiator, Barry, Duke, and Lac Barry Projects.

Nov 28, 2023

Circa Completes Amalgamation with Sicane Group SAS and Spinout of Telecom Assets

On April 14, 2023, Circa Enterprises Inc. (TSVX: CTO) ("Circa") and Sicame Group SAS ("Sicame") announced the completion of the amalgamation of Circa and 2023 Sicame Amalco Inc. ("SubCo") (the "Amalgamation") pursuant to the amalgamation agreement among Circa, Sicame Canada Holdings Inc.

Apr 14, 2023

Avcorp Industries Completes Plan of Arrangement with Latécoère S.A.

On November 7, 2022, Avcorp Industries Inc. (TSX:AVP) (“Avcorp”) closed its CAD$139 million acquisition by Latécoère S.A. (“Latécoère”). The acquisition was affected by way of a court-approved plan of arrangement under the Canada Business Corporations Act, pursuant to which Latécoère acquired all the issued and outstanding common shares of Avcorp for considerations of $0.11 in cash per share.

Nov 7, 2022

Uranium Energy acquires UEX Corporation creating the largest diversified North American focused uranium company

On August 22, 2022, Uranium Energy Corp (NYSEAM: UEC) ("UEC") closed its previously announced plan of arrangement (the "Arrangement") under the Canada Business Corporations Act, pursuant to which UEC acquired all of the issued and outstanding common shares of UEX Corporation ("UEX") that it did not already own.

Aug 22, 2022