Our Leadership
Olivier Le Peuch
Chief Executive Officer
Olivier Le Peuch is chief executive officer of SLB, a position he has held since August 2019. Previously, he served as the company’s chief operating officer and 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 Schlumberger Information Solutions.
Stephane Biguet
Executive Vice President and Chief Financial Officer
Stephane Biguet is executive vice president and chief financial officer. Prior to taking on this role in January 2020, he served as the company’s vice president of finance. Stephane previously held the positions of vice president treasurer, controller and vice president Global Shared Services.
Dianne Ralston
Chief Legal Officer
Dianne Ralston is chief legal officer of SLB, a position she has held since December 2020. Before assuming the role, she was executive vice president, chief legal officer, and secretary of TechnipFMC. Dianne was also the executive vice president, chief legal officer, and secretary of FMC Technologies from 2015 to 2017.
Khaled Al Mogharbel
Executive Vice President, Geographies
Khaled Al Mogharbel is executive vice president, Geographies, a role he began in July 2020. Prior to this, he held various management positions, including executive vice president of operations, president of the eastern hemisphere, president of the Drilling Group, president of Schlumberger Middle East, and vice president and managing director for Saudi Arabia, Kuwait, and Bahrain.
Abdellah Merad
Executive Vice President, Core Services and Equipment
Abdellah Merad is executive vice president, Core Services and Equipment, a role he has held since 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.
Gavin Rennick
President New Energy
Gavin Rennick has served as president of the SLB New Energy group since April 2022. Prior to his current role, Gavin 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.
Rakesh Jaggi
President Digital & Integration
Rakesh Jaggi is the president of Digital & Integration, a position he assumed in April 2023. Over the past 10 years, he has held several management roles including senior vice president of sales and commercial, president completions, vice president technology lifecycle management, vice president sustaining and president well intervention services.
Carmen Rando Béjar
Chief People Officer
Carmen Rando Béjar is chief people officer, a position she has held since 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.
Demosthenis Pafitis
Chief Technology Officer
Demosthenis Pafitis is chief technology officer, a position he assumed in February 2020. Demosthenis is responsible for SLB New Technology Development, Digital Technology Development and Manufacturing. Prior to his current appointment, Demosthenis served as senior vice president of SLB 4.0 Platforms.
Aparna Raman
Chief Strategy and Marketing Officer
Aparna Raman is SLB’s chief strategy and marketing officer, a role she assumed in March 2025. In her current capacity, Aparna oversees corporate strategy, market intelligence, communications, and product marketing.
Tarek Rizk
Chief Performance Officer
Tarek Rizk is SLB’s chief performance officer, a position he assumed in March 2025. In his current role, Tarek drives SLB’s global performance strategy and implementation, including safety, operations integrity, planning, supply chain, manufacturing, maintenance, digital enablement, information technology, and global business services.