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Darcy Ries

B.Sc., P.Eng. Executive Engineer, Oil & Gas Group
Executive Engineer, Oil & Gas Group

Mr. Darcy Ries is a Professional engineer with over 25 years experience in oil and gas with 15 years in leadership positions. He delivers commercial projects with multi-disciplinary teams on technically complex, material assets. He has a foundation of technical skills centered on reservoir engineering, geology, geophysics, production, operations, drilling and completions, and business development. Mr. Ries is an intuitive, pragmatic and analytical business leader known for personal credibility and integrity.

Professional Licensure

Professional Engineering License – AB - Association of Professional Engineers, Geoscientists of Alberta (APEGA)


  • Reservoir, production, operations, drilling and completions engineering
  • Advanced completion design and enhanced oil recovery experience on domestic and international projects
  • Reserves estimation and booking
  • Utilize technology, reservoir and operational methods for profitable, sustainable growth of assets
  • Concept-to-commercial Enhanced Oil Recovery projects – waterflood, thermal, polymer, C02, tight oil
  • Large-scale project management
  • Joint venture partnerships
  • Prompts collaboration amongst disciplines (Operations, Geoscience, Facilities, Land, etc.) to promote and drive integrated projects
  • Demonstrate entrepreneurial ideas in generating projects and adding value
  • Demonstrate excellent time management, organizational skills and the ability to work within a given timeline
  • Superior analytical, writing, interpersonal and presentation skills

Academic Background

University of Saskatchewan, Canada Bachelor of Science degree in Chemical Engineering


Professional Experience

Haag Canada, Calgary, AB Executive Engineer, Oil & Gas Group

2021 to Present

Clearview Resources, Calgary, AB
Vice President Engineering & Chief Operating Officer

2017 - 2021

Grizzly Resources, Calgary, AB
Director, Assets


Laricina Energy, Calgary, AB
Sales and Marketing Manager


Pengrowth Energy, Calgary, AB
Chief Reservoir Engineer & Manager, Reservoir Technology


Vermilion, Calgary, AB
Manager, Enhances Recovery


Nexen, Calgary, AB
Commercial Manager - Heavy Oil/Enhanced Oil Recovery


Nexen, Calgary, AB
Engineering Manager - International Business Development


Nexen, Calgary, AB
Staff Analyst - Investor Relations


Nexen, Calgary, AB
Senior Reservoir Engineer - Gas Business Unit


Nexen, Calgary, AB
Senior Reservoir Engineer - Heavy Oil Group


Nexen, Calgary, AB
Reservoir Engineer - Technical Specialist Group