




STONE Oil & Gas - Key Team Members
Sherif Elkelish, P.Eng, PhD.​
President​
Over 32 Years of Industry Experience.
Has performed as the Senior Director of Engineering, Project Director, Global Director of Engineering Management, Chief of Civil/Structural/Architectural Engineering Department. Has served such clients as ADGAS, SABIC, Petro-Canada, Imperial Oil, Shell, Irving Oil, and Marathon Oil.
​​Dario J. Opacak, P.Eng
Vice President, Projects
Over 21 Years of Industry Experience.
Has performed as a Senior Project Manager, Senior Engineering Manager, Chief of Mechanical Engineering Department, and Senior Heat Transfer Specialist. Has served such clients as ADGAS, SABIC, Shell, Suncor, Petro-Canada, ConocoPhillips, and Irving Oil.
​Esmaeil Namaki, P.Eng
Vice President, Engineering
Over 22 Years of Industry Experience.
Has performed as the Global Chief of Electrical Engineering, Commissioning Manager for Power Projects, and Concurrent Chief of Electrical and I&C Engineering Departments. Has served such clients as ADGAS, SABIC, QSTec, PetroChina, and Marathon Oil.
​Ebrahim Hojabr, P.Eng
Principal Engineer, Process & Commissioning​
Over 27 years of industry experience.
Has performed as the Senior Process Engineer, and Project Lead Process Engineer, and Construction Commissioning Manager. Has served such clients as SABIC, Petro-Canada, Shell, Suncor, PDVSA, and Solvay.
​Tony Matassa, P.Eng
Principal Engineer, Mechanical
Over 28 years of industry experience.
Has performed as Chief Mechanical Engineer, Senior Mechanical Engineer, and Project Lead Mechanical Engineer. Has served such clients as ADGAS, SABIC, PDVSA, Petro-Canada, Shell, Suncor Energy, and PetroChina.
​Yves Poulin, P.Eng
Senior Engineer, Mechanical
Over 15 years of industry experience.
Has performed as Senior Mechanical Engineer, Project Lead Mechanical Engineer, and Project Engineering Manager. Has served such clients as ADGAS, SABIC, Solvay, Iraq Ministry of Oil, and CHS.
​​Mihir Patel
Principal Specialist, Piping​
Over 11 years of industry experience.
Has performed as Senior Piping Engineer, and Project Lead Piping Engineer/Designer with extensive 3D modeling experience and application to field projects. Has served such clients as ADGAS, SABIC, Iraq Ministry of Oil, HOKU Polysilicon, and Reliance.
​Khalid Rehman, P.Eng
Principal Engineer, Civil/Structural/Architectural​
Over 19 years of industry experience.
Has performed as Senior Civil/Structural/Architectural Engineer, and Project Lead Civil/Structural/Architectural Engineer, and Assistant Civil/Structural/Architectural Chief Engineer. Has served such clients as ADGAS, SABIC, Solvay, Transalta, QSTec, and HOKU Polysilicon.

Temul Sahadeo, P.Eng, PMP
Senior Engineer, Electrical
Over 18 years of industry experience.
Has performed as Senior Instrumentation & Electrical Engineer and Lead Electrical Engineer. Has served such Clients as ADGAS, SKEC, Marathon Oil, SABIC, Shell, bpTT, and BGTT
Iman Afshar, P.Eng, PMP
Senior Engineer, Instrumentation & Control Systems
Over 17 years of industry experience.
Has performed as Senior Instrumentation and Control Systems Engineer, and Project Lead Instrumentation and Control Systems Engineer. Has served such Clients as ADGAS, SKEC, HOKU Polysilicon, PetroChina, SABIC, NIOC, and NIGC.
​​Abdel Zeidan, P. Eng, Six Sigma BB
Senior Engineer, Process / Program Excellence
Over 12 years of industry experience.
Has served as Lead Process Engineer, Simulation Expert and Program Excellence Manager. Has served such clients as Petro-Canada, Reliance, ConocoPhillips, Suncor, Sunoco, and Al-Rajhi Group.
