Reserves Evaluations in Canada – What’s Changing Under COGEH

Steven Golko P.Eng.
Steven Golko P.Eng.
Senior Vice President, Reserves & Resources
21 January 2026 3 min read

On This Topic

Why Are COGEH Updates Important for Canadian Reserves Evaluations?

National Instrument 51-101 (NI 51-101) is a Canadian securities regulatory requirement mandated for oil and gas companies. It establishes standards for the disclosure of oil and gas activities, including the evaluation and reporting of reserves. NI 51-101 aims to provide investors, regulators, and other stakeholders with transparent, consistent, and reliable information on reserves and resources.

The Instrument requires public companies to report their reserves estimates in compliance with Canadian Oil and Gas Evaluation Handbook (COGEH) guidelines, conducted by independent qualified reserves evaluators or auditors. These rules support market confidence by ensuring that reserves disclosures are accurate and comparable across issuers.

What Changes Have Been Introduced Under the Latest COGEH Updates?

Recent updates to COGEH guidelines introduce several minor changes impacting reserves evaluations, including:

  • Added clarity around the inclusion of carbon tax credits in evaluations.
  • Updated definitions of Qualified Reserves Evaluator and Qualified Reserves Auditor.
  • Minor wording and reference changes.

What Is the Role of COGEH in Canadian Reserves Evaluations?

COGEH provides the practical framework and technical guidelines that complement NI 51-101. It establishes consistent methodologies for evaluating reserves and resources, supporting compliance with NI 51-101 disclosure obligations.

COGEH ensures that evaluations follow sound engineering and geoscience principles, aligning technical rigor with regulatory requirements. It functions as the cornerstone reference for independent qualified persons certifying reserves under NI 51-101.

How Do the Latest COGEH Updates Impact Oil and Gas Operators?

Operators face heightened compliance complexities due to evolving NI 51-101 and COGEH rules.

Key Compliance Challenges

Key challenges include:

  • Navigating more detailed certification and disclosure demands.
  • Ensuring robust data quality and audit trails for reserves evaluations.
  • Integrating updated technical guidance and cross-disciplinary approaches.
  • Staying current with regulatory changes and aligned industry best practices.

Best Practices for Maintaining Compliance

Best Practices Include:

  • Engage competent independent evaluators early in the reserves assessment process.
  • Implement standardized processes and thorough documentation frameworks.
  • Conduct periodic internal reviews to prepare for external audits.
  • Keep abreast of NI 51-101 and COGEH updates to anticipate compliance implications.

How Does Sproule ERCE Support COGEH-Compliant Reserves Evaluations?

Sproule ERCE stands out as a trusted partner in Canadian reserves certification, combining deep technical expertise with comprehensive regulatory knowledge.

Examples of COGEH-Compliant Reserves Evaluations

Case Examples:

  • Confidential Western Canada Oil Field: Successfully completed independent reserves certification aligned with updated NI 51-101 criteria, enhancing client reporting confidence.
  • Alberta Gas Asset Portfolio: Implemented integrated evaluation workflows based on COGEH standards, supporting detailed disclosures that met stringent auditor scrutiny.

Our methodology emphasizes transparency, rigorous review, and adherence to evolving NI 51-101 and COGEH guidelines, giving clients assurance in their regulatory filings and investor communications.

Learn more about our approach and solutions.

Why Is Independent Reserves Certification Critical Under the Updated COGEH Framework?

The recent COGEH updates demand careful attention from Canadian oil and gas operators to maintain compliance and transparency. Independent reserves certification is crucial for ensuring accurate disclosures, protecting investor confidence, and meeting compliance obligations.

Sproule ERCE offers proven expertise to guide companies through these regulatory developments with confidence. To learn more about how we can support your reserves evaluation and certification needs, please contact us or visit our reserves evaluation services page.

Explore real-world success stories of reserves evaluations and certifications in Canada.

Steven Golko P.Eng.

Written by:

Steven Golko P.Eng.

Senior Vice President, Reserves & Resources

Steven is Senior Vice President of Sproule ERCE’s Reserves & Resources business. He has experience in reserves and resources, evaluations and audits, supply studies, supporting A&D opportunities, technical due diligence, and financial and annual reporting requirements. He is experienced in conventional oil and gas assets, unconventional resource plays, heavy oil production, various EOR schemes, helium and lithium brine extraction. He has experience in over 25 countries.