Following a 36-year career with SaskEnergy, President and CEO Mark Guillet is retiring effective July 15, 2026.
Guillet joined SaskEnergy’s Legal department in 1990. Through his leadership and commitment to the company, he joined SaskEnergy’s Executive team in 1995, when he was appointed General Counsel and Corporate Secretary. In 2020, Guillet’s portfolio expanded as he became Executive Vice President of Stakeholder Engagement, Chief Legal Officer and Corporate Secretary. This role positioned him with a cross-section of responsibility, including: SaskEnergy’s Legal and Regulatory Compliance, Environment, Indigenous & Community Engagement, Communications, and Land functions. He also served as the Corporation’s Chief Privacy Officer.
In February 2022, Guillet was appointed as SaskEnergy’s Acting President and CEO, and was formally named President and CEO in May 2023. He has led with a spirit of collaboration, openness, and recognition of the efforts made by SaskEnergy’s employees across Saskatchewan.
Throughout his tenure as President and CEO, Guillet has contributed significantly to SaskEnergy’s ongoing success. In 2023, the organization designed and developed an Indigenous Roadmap, establishing a clear path forward for meaningful relationships and impactful engagement with Indigenous communities. Guillet is also a strong advocate for community engagement and, through SaskEnergy’s Champion of Volunteers program, reinforced the vital role volunteers play in the province.
Under Guillet’s leadership, SaskEnergy achieved the recognition as one of Canada’s Top 100 Employers, and one of Saskatchewan’s Top Employers, for 2023, 2024, 2025 and 2026.
“I want to thank Mark for more than three decades of dedicated service to SaskEnergy and to the people of Saskatchewan,” said Jeremy Harrison, Minister Responsible for SaskEnergy. “We are fortunate to have had his steady, practical approach in leading the Corporation and there is no doubt that his dedication to SaskEnergy has strengthened its operations and positioned the company to succeed well into the future.”
“On behalf of the SaskEnergy Board of Directors, I’d like to extend my deep appreciation to Mark for his outstanding leadership throughout his career,” said SaskEnergy Board Chair Susan Barber. “Mark has guided the Corporation with integrity, professionalism, and a strong focus on delivering safe, reliable, and affordable energy to the people of Saskatchewan. We are grateful for his strategic vision and his dedication to serving customers and communities across the province.”
Guillet received his Bachelor of Laws degree from the University of Saskatchewan in 1987. He was appointed Queen’s Counsel by the Lieutenant Governor in Council in 2015 and was granted the Queen Elizabeth II Platinum Jubilee Award in business in 2022. He also obtained the Certified In-House Counsel Canada (CIC.C) designation and the Institute of Corporate Directors (ICD.D) designation. He received the Canadian Bar Association National Transition to Business Award in 2024.
Guillet is a member of the Law Society of Saskatchewan, the Canadian Bar Association, the Canadian Corporate Counsel Association, and the Association of Corporate Counsel. He also serves on the Canadian Gas Association's Board of Directors as second Vice Chair and the Chair of its Audit and Finance Committee.
The executive search to select a new President and CEO will be led by the SaskEnergy Board of Directors Chair and will begin in the coming days.
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