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We have assembled an experienced, skilled and committed team capable of evaluating, acquiring, optimizing and operating our unique asset base.  From our Board of Directors to each individual employee, we are all dedicated to the ongoing success of Harvest.

Jeff tooth, President & Chief Executive Officer, Director


Mr. Tooth has approximately 30 years of oil and gas industry experience, most recently as Chief Advisor for the Global Technology & Research Centre (GTRC) of KNOC, working on projects for KNOC's global operations and many of the new ventures. Prior to joining KNOC, Mr. Tooth held executive positions at Kerr-McGee, Husky Energy Inc. and J.M. Huber.  Mr. Tooth holds a Bachelor's (Hons.) and Master's degrees in Geology from the University of London. Mr. Tooth joined Harvest as Chief Operating Officer in February 2016 and was appointed President & CEO and Executive Director in December 2016.

SUNGKI LEE, Chief Financial Officer, DIRECTOR

Mr. Lee is currently the Chief Financial Officer at Harvest. Prior thereto, he was the Senior Manager, Asset Optimization at KNOC. He holds a Master of Corporate Finance from Yonsei University.




Mr. Jang joined Harvest in February 2014 as Vice President, Global Technology Research Centre. He has worked for KNOC for the past 19 years and has held positions including Senior Manager, Petroleum Engineering Department, Project Manager, New Venture Team and Business Development Director, Caspian Branch Office. He has a Bachelor’s degree in Mineral and Petroleum Engineering as well as a Masters in Mineral and Petroleum Engineering, both from Seoul National University. Mr. Jang was appointed Deputy Chief Operating Officer in November 2015.


mark tysowski, general counsel

Mr. Tysowski is responsible for the overall legal affairs of Harvest and advises on commercial, corporate governance and investor relations matters. Mr. Tysowski has advised KNOC on its international oil and gas exploration and development operations since 2004 and been involved with Harvest since KNOC acquired it late 2009.  He assumed the role of General Counsel in July 2012.  Mr. Tysowski holds a Bachelor of Laws degree from the University of Saskatchewan and brings over 23 years of legal and business experience in the domestic and international oil and gas industry.  Prior to joining Harvest, Mr. Tysowski spent ten years in private practice with Calgary offices of national Canadian law firms and another decade managing his own successful international legal practice. His career has included postings in Russia, Indonesia and Vietnam.  He is a member of the Law Society of Alberta. 


Jon lowes, vice president, land

Mr. Lowes has over 35 years of oil and gas experience. He joined Harvest in June 2010.  Mr. Lowes originally started his career with Imperial Oil and over the course of his career has worked for major oil companies, mid-size companies and start-up companies. 

Mr. Lowes has lease administration, contracts, surface, A & D, and area landman experience and most recently was the area landman for Harvest’s Deep Basin area.  Mr. Lowes has a Business Administration Diploma from St. Clair College.


grant ukrainetz, vice president, FINANCE 

Mr. Ukrainetz joined Harvest as Treasurer in August 2012. He is a chartered accountant and holds a Bachelor of Commerce degree from the University of Saskatchewan. He brings over 25 years of experience within the areas of corporate finance, strategic planning, treasury & banking, risk management, investor relations and financial reporting. Prior to joining Harvest, he served as Treasurer, then Vice President Corporate Development with a junior oil sands company from 2006 to 2012. Prior thereto, Mr. Ukrainetz held progressively senior finance related positions with a senior Canadian producer from 2001 to 2006 and a multi-national oil company from 1994 to 2001. He has also worked in the corporate banking division of a Canadian financial institution and for a public accounting firm. 


doug walker, vice president, Exploitation

Mr. Walker has over 35 years of technical and business experience in operations, production, facilities, completions, drilling, reservoir engineering, business development and frontier projects.

He joined Harvest in August 2010 and, prior to his promotion to VP, Engineering in October, 2012, held the position of Area Manager, Peace River Arch and SE Saskatchewan.

Mr. Walker’s prior industry experience includes technical, business and senior management positions with Provident Energy, Noise Solutions, Stellarton Energy, Jordan Petroleum and Gulf Canada Resources.


Mr. Walker has a degree in Chemical Engineering from the University of Calgary and is a registered Professional Engineer with APEGA.