Board of Directors

Headshot of Hilary Foulkes
Hilary Foulkes Chair of the Board of Directors
Hilary Foulkes Chair of the Board of Directors

Ms. Foulkes has over 35 years of oil and gas experience combining upstream operations, strategic planning, and investment banking. She founded the Canadian platform of Tudor, Pickering, Holt, & Co. Securities, a global energy advisory firm, in 2014 and currently serves as a senior advisor to the company. Ms. Foulkes held a number of executive roles with a large, public Canadian oil and gas producer from 2008 to 2012, including Executive Vice President and Chief Operating Officer. Ms. Foulkes was a Managing Director at a private investment bank and then Scotiabank from 2000 to 2008, and for the prior 20 years, held various upstream exploration and operational roles with increasing leadership responsibilities and strategic focus.

Ms. Foulkes chairs a national not-for-profit board which supports STEM education for Canadian youth. She holds an Honours Bachelor of Science (Earth Sciences) degree from the University of Waterloo, is a member of the Canadian Association of Petroleum Geologists, the Institute of Corporate Directors and a lifetime member of the Association of Professional Engineers and Geoscientists of Alberta (APEGA).

Sherri A. Brillon Director
Sherri A. Brillon Director

Ms. Brillon has over 35 years of experience in the oil and gas industry. From 1985 to 2019, Ms. Brillon held various positions of increasing responsibility at Encana Corporation (now known as Ovintiv Inc.) which included serving as Executive Vice-President and Chief Financial Officer for a decade prior to her retirement in 2019. At Encana, Ms. Brillon was responsible for directing the financial operations of the organization as well as implementing Encana’s business strategy through multiple strategic transactions. Ms. Brillon currently serves on the board of directors for Delek Logistics Partners LP and is a past director of the Canadian Chamber of Commerce, Alberta Energy Regulator, Tim Hortons Inc., and PrairieSky Royalty Ltd. She attended the University of Calgary, where she graduated with a Bachelor of Arts degree in economics.

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Judith D. Buie Director
Judith D. Buie Director

Ms. Buie has spent over 30 years in the upstream oil and gas business leading business development initiatives and managing oil and gas assets through different commodity and life cycles. From 2012 to 2017, Ms. Buie was Co-President and Senior Vice President Engineering for RPM Energy Management LLC, a private company which works exclusively with KKR, a leading global investment firm, to evaluate and manage oil and gas investments. Prior to RPM, Ms. Buie held a variety of leadership and technical positions with Newfield Exploration Company from 2001 to 2011, and prior thereto she served in various technical roles at BP, Vastar Resources and ARCO. Ms. Buie currently serves on the board of directors of a private oil and gas company. She also serves as an oil and gas industry advisor. Ms. Buie received a Bachelor of Science degree in Chemical Engineering from Texas A&M University.

Headshot of Karen Clarke-Whistler
Karen Clarke-Whistler Director
Karen Clarke-Whistler Director

Ms. Clarke-Whistler has over 30 years of experience in strategic management of environmental and social issues. In late 2018, she retired as Chief Environment Officer of TD Bank Group, a position she held for ten years. Prior to that she spent 20 years as an environmental consultant to energy, resource development and financial clients in the Americas, Europe and Africa.  She began her consulting career with Beak Consultants Limited in 1985 where she progressed over a ten-year period to Senior Principal and President. She then joined Golder Associates where she was a partner in the Sustainable Development practice until 2008. She has served on a number of private and not-for-profit boards and is currently on the board of directors of two private companies.

Ms. Clarke-Whistler received a B.Sc. in Biology from the University of Toronto, an M.Sc. in Land Resource Science from the University of Guelph, and the ICD.D designation from the Institute of Corporate Directors. She has twice been recognized as one of Canada’s “Clean16” in recognition of her contribution to clean capitalism in the financial sector.

Headshot of Ian Dundas
Ian C. Dundas Director
Ian C. Dundas Director

Mr. Dundas became President & Chief Executive Officer of Enerplus on July 1, 2013. He joined the company in 2002 as Vice-President of Business Development, responsible for corporate acquisition and divestment strategies. In 2010, his role expanded to that of Executive Vice-President. In 2011, Mr. Dundas was appointed Executive Vice-President and Chief Operating Officer, where he oversaw the development and execution of the company’s operational strategies, strategic planning, marketing and reserves, as well as acquisitions and divestments. As President and Chief Executive Officer, Mr. Dundas is responsible for overall leadership of the strategic and operational performance of Enerplus.

Prior to joining Enerplus, Mr. Dundas held several executive positions in the merchant banking business, where he helped oil and gas companies grow by accessing the funding and expertise they required. Mr. Dundas is a member of the Business Council of Canada and on the Board of Governors of the Canadian Association of Petroleum Producers. Mr. Dundas has been an active volunteer in numerous charitable endeavors and was Co-chair of the Calgary YMCA Power of Potential campaign. Mr. Dundas has served on the board of numerous private and public companies. Mr. Dundas holds a Bachelor of Commerce (Distinction) from the University of Calgary and a Bachelor of Laws (Distinction) from the University of Alberta. He was called to the Alberta Bar in 1995.

Headshot of Mark Houser
Mark A. Houser Director
Mark A. Houser Director

Mr. Houser is the founder and principal of Symphero Energy Solutions, LLC, an advisory services company in the oil and gas and renewable energy development markets. From 2015 to 2021, he served as Chief Executive Officer of University Lands, which manages the surface and mineral interests of 2.1 million acres of land in West Texas. Prior to that, he held multiple executive roles for Enervest, Ltd. from 1999 to 2015, including Executive Vice President and Chief Operating Officer. Mr. Houser served in a variety of executive and senior management roles with Occidental Petroleum & Canadian Occidental Petroleum, Ltd. from 1989 to 1999.  He began his career in 1984 with Kerr-McGee Corporation in various production and reservoir engineering positions.

Mr. Houser currently serves on the Investment Committee for a privately held oil and gas investment firm.  He also serves on the Board of Directors of the Houston Methodist Hospital System and is a member of the Board of Stewards of Chapelwood United Methodist Church. He received a Bachelor of Science degree in Petroleum Engineering from Texas A&M University, College Station Texas and an MBA from Southern Methodist University.

Picture of Ward Polzin in a medium blue suit jacket, white shirt and light blue tie
Ward Polzin Director
Ward Polzin Director

Mr. Polzin is the Founder and Executive Chairman at Camino Natural Resources. He is a Venture Partner of NGP Energy (“NGP”), a private equity investment firm based in Dallas, TX, and brings with him over 35 years of leadership, engineering, commercial, financial, and investing experience in the energy industry. Mr. Polzin is the Executive Chairman of Camino Natural Resources, LLC (“Camino”), an NGP portfolio oil and gas company started in 2017. Previously, he served as CEO of Centennial Resource Development, LLC (“Centennial”), an NGP portfolio company focused on the Permian basin of West Texas, from 2013 to 2016. Prior to forming Camino and Centennial, he served as a Managing Director and a founding partner in Investment Banking at Tudor, Pickering, Holt & Co., where he spearheaded the firm’s E&P asset acquisition and divestiture practice. Prior thereto, Mr. Polzin worked in roles spanning advisory, financing, business development, and engineering in the energy sector. He earned a B.S. in Petroleum Engineering from the Colorado School of Mines in 1984 and an M.B.A. from Rice University in 1986. He is also a CFA charterholder.

Headshot of Jeffrey Sheets
Jeffrey Sheets Director
Jeffrey Sheets Director

Mr. Sheets served as Executive Vice President and Chief Financial Officer of ConocoPhillips Company (ConocoPhillips) from October 2010 to February 2016. Mr. Sheets was associated with ConocoPhillips and its predecessor companies for more than 35 years and served in a variety of roles, including Senior Vice President, Planning and Strategy as well as Vice President & Treasurer. He began his career in 1980 as a process engineer with Phillips Petroleum Company. Mr. Sheets also serves on the Board of Directors of Schlumberger Limited and Westlake Chemical Corporation and is a former director of DCP Midstream Partners LP. Mr. Sheets received a Bachelor’s degree in Chemical Engineering from the Missouri University of Science and Technology and an M.B.A. from the University of Houston. Mr. Sheets is a member of the Board of Trustees at the Missouri University of Science and Technology.

Headshot of Sheldon Steeves
Sheldon B. Steeves Director
Sheldon B. Steeves Director

Mr. Steeves has over 40 years of experience in the North American oil and gas industry and is currently a corporate director. From January 2001 until April 2012, Mr. Steeves was Chairman and Chief Executive Officer of Echoex Ltd., a junior private oil and gas company focused on greenfield organic growth in Western Canada. Mr. Steeves spent over 15 years at Renaissance Energy Ltd. where he was appointed Chief Operating Officer in 1997. He holds a Bachelor of Science in Geology from the University of Calgary.