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Don L. Althoff

President and Chief Executive


Don Althoff is a senior business executive with a proven track record of delivering results across a range of energy businesses within a “Fortune 25” company. He has deep knowledge of the fuels supply chain marketplace, including manufacturing, pipeline, terminal, trading and retail sales. Most recently, Don was Chief Executive Officer of Flex Fuels US LLC. He was also with BP PLC and Amoco Corporation for 27 years. He brings to Veresen extensive operating expertise and his leadership will be instrumental in Veresen’s future growth.

Don holds a Bachelor of Engineering from the University of Illinois, has completed financial management studies at Indiana University, and management programs at Stanford and Harvard universities.

Darren MarineTom Day

Senior Vice President, Operations


Tom Day brings to Veresen over 30 years of experience in operations, maintenance, project management and business integration, including international experience. Tom is a seasoned leader committed to operational excellence and operating discipline, with a passion for personal and process safety. The majority of Tom’s career was spent with Suncor and its predecessor companies.

Tom holds a Bachelor of Applied Science degree from the University of Toronto and is a registered Professional Engineer in both the provinces of Alberta and Ontario.


Tom Day

Theresa Jang

Senior Vice President Finance
and Chief Financial Officer



Theresa Jang is a senior finance professional with over 25 years of experience in the energy industry. As Senior Vice President, Finance and Chief Financial Officer, Theresa is responsible for accounting and financial reporting, taxation, finance, treasury, risk management, and information technology. Previous to this appointment, Theresa held the positions of Vice President, Finance & Risk Management and Vice President, Controller for Veresen. Prior to joining Veresen in 2006, Theresa worked with TransCanada Corp. for 16 years where she held a variety of progressively more senior roles within accounting and financial reporting, including four years as Controller of TC PipeLines, LP.

Theresa holds a Bachelor of Commerce degree from the University of Calgary and a Chartered Accountant designation.


Kevan S. King 

Senior Vice President,
General Counsel & Secretary


Kevan King graduated from the Faculty of Law at the University of Calgary, having previously obtained a Bachelor of Arts degree from the University of Alberta. For most of his career, Kevan has worked as in-house counsel with companies in the oil and gas sector. From 1984 to 1988, he worked with Asamera Inc., an international oil and gas and mining company, and from 1988 to 2000 with Poco Petroleums Ltd., a senior Canadian oil and gas company.

Kevan joined Veresen in 2004 after maintaining an independent law practice for several years. Kevan has served as a director and officer of a number of public and private entities, as well as industry and legal associations.

Darren Marine

Senior Vice President,
Business Joint Ventures


Darren Marine is senior energy professional with over 23 years of experience in midstream, producer services, transportation, marketing and trading of natural gas, liquids and electricity. Darren is highly experienced in commercial business development and business ventures related to natural gas, pipelines and facilities, with a proven track record to lead a multi-disciplinary organization at the senior leadership/executive level.

Prior to joining Veresen, Darren was President of SemCAMS ULC where he was responsible for all aspects of its sweet and sour natural gas gathering, compression and processing infrastructure. Darren was also Vice President of Dynegy Canada’s marketing and trading operations and spent three years with Koch Gas Marketing.

Darren earned his Bachelor of Business Administration Degree from Stephen F. Austin State University in Texas.

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