Executive Management | Schlumberger
Executive Management
Olivier Le Peuch

Olivier Le Peuch

Chief Executive Officer
Schlumberger Limited

Olivier Le Peuch is chief executive officer of Schlumberger Limited, a position he assumed in August 2019. Prior to his current position, he served as the company’s chief operating officer. Le Peuch previously held various global management roles, including executive vice president of Reservoir & Infrastructure; president of the Cameron Group; president of Schlumberger Completions; vice president of Engineering, Manufacturing, and Sustaining; and president of Software Integrated Solutions.

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Stephane Biguet, Vice President Finance, Schlumberger Limited

Stephane Biguet

Executive Vice President and Chief Financial Officer
Schlumberger Limited

Stephane Biguet is executive vice president and chief financial officer of Schlumberger Limited, a position he assumed in January 2020. Prior to his current position, he served as the company’s vice president of finance. Biguet previously held the positions of vice president Treasurer, Controller and vice president Global Shared Services.

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Headshot of Dianne Ralston, Chief Legal Officer

Dianne Ralston

Chief Legal Officer
Schlumberger Limited

Dianne Ralston is the Chief Legal Officer, a role she assumed in December 2020. Before assuming the role she was Executive Vice President, Chief Legal Officer and Secretary of TechnipFMC since the company’s formation in 2017 and was the Executive Vice President Chief Legal Officer and Secretary of FMC Technologies from 2015 to 2017.

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Khaled Al Mogharbel

Khaled Al Mogharbel

Executive Vice President – Geographies
Schlumberger Limited

Khaled Al Mogharbel is executive vice president of Geographies, a position he assumed in July 2020. Prior to his current role, he held various management positions, including executive vice president of operations, president of the eastern hemisphere from June 2017 to March 2019, and president of the Drilling Group, president of Schlumberger Middle East, and vice president and managing director for Saudi Arabia, Kuwait, and Bahrain.

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Headshot of Carmen Rando Bejar, Chief People Officer

Carmen Rando Bejar

Chief People Officer
Schlumberger Limited

Carmen Rando Bejar is Chief People Officer, a position she assumed in April 2022. Prior to this role she held various headquarter and senior management positions in drilling and measurements across North and South America, and the Middle East. These roles spanned line management, operations integrity, and global operations resource planning.

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Demosthenis Pafitis, Chief Technology Officer

Demosthenis Pafitis

Chief Technology Officer
Schlumberger Limited

Demosthenis Pafitis is Chief Technology Officer, a position he assumed in February 2020. Pafitis is responsible for Schlumberger New Technology Development, Digital Technology Development and Manufacturing. Prior to his current appointment, Pafitis served as senior vice president of Schlumberger 4.0 Platforms. 

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Abdellah Merad

Abdellah Merad

Executive Vice President Core Services & Equipment
Schlumberger Limited

Abdellah Merad is executive vice president Core Services & Equipment, a role he assumed in April 2022. Prior to this, he was executive vice president Performance Management. His previous positions include president of NAL Production, president of the Production Group, vice president controller of Operations, vice president of the Shared Services Organization, and GeoMarket manager for North Africa.

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Headshot of Katharina Beumelburg, Chief Strategy and Sustainability Officer

Dr. Katharina Beumelburg

Chief Strategy and Sustainability Officer
Schlumberger Limited

Dr. Katharina Beumelburg is Chief Strategy and Sustainability Officer, a position she assumed in May 2021. Prior to her current position, she led the global Transmission Services business for Siemens Energy AG. Beumelburg previously held various positions in Siemens over more than 16 years including Executive Vice President, Strategy, Siemens Gas and Power; and leading the Siemens Hydrogen Solutions business.

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Gavin Rennick

Gavin Rennick

President Schlumberger New Energy
Schlumberger Limited

Gavin Rennick is president of Schlumberger New Energy, a position he assumed in April 2022. Prior to his current role, he was vice president of Human Resources. He previously served as president of Software Integrated Solutions and held various corporate and operations management roles, including integration manager for the Cameron International merger; vice president Drilling Products; GeoMarket Manager for Australia, New Zealand, and Papua New Guinea; and human resources manager for Drilling & Measurements.

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Rajeev Sonthalia

Rajeev Sonthalia

President – Digital & Integration
Schlumberger Limited

Rajeev Sonthalia is President, Digital & Integration—Schlumberger, a position he assumed in July 2020. Prior to this role he has held various management positions including the president of Integrated Performance Management, Head of Marketing & Corporate Strategy, vice president of Reservoir Characterization in the Eastern Hemisphere, president of Integrated Drilling Services, president of Schlumberger Production Management, and president of Asia Pacific.

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