Leading Executives in Oilfield Services
Keelan Adamson
President & Chief Executive Officer, Transocean
Promoted from President & COO to President & CEO in Q2 2025 after nearly three decades at Transocean, succeeding Jeremy Thigpen as part of a planned succession.
Bio | Company | Investor Relations
Larry Bruno
Chairman & Chief Executive Officer, Core Laboratories
Veteran technologist who became Chairman & CEO in 2020; long-time leader in reservoir description and production enhancement services at Core Lab.
Bio | Company | Investor Relations
Anton Dibowitz
President & Chief Executive Officer, Valaris
Former Seadrill CEO who took the helm at Valaris in December 2021 and continues to lead the offshore driller’s comeback and contracting momentum.
Kjetel Digre
Chief Executive Officer, Aker Solutions
CEO since August 2020; previously led major projects at Equinor (including Johan Sverdrup) and Aker BP before steering Aker Solutions’ subsea and low‑carbon growth.
John Evans
Chief Executive Officer, Subsea 7
CEO since January 2020; champion of integrated subsea delivery via Subsea Integration Alliance and collaboration with OneSubsea (SLB/Aker Solutions JV).
Philippe Guillemot
Chairman & Chief Executive Officer, Vallourec
Appointed Chairman & CEO in 2022, he led Vallourec’s turnaround with deleveraging and a return to shareholder distributions after years without dividends.
Ron Gusek
Chief Executive Officer & President, Liberty Energy
Succeeded to CEO in February 2025 after serving as President since 2016; focuses on tech-driven, efficiency‑led hydraulic fracturing operations.
Bio | Company | Investor Relations
Andy Hendricks
President & Chief Executive Officer, Patterson‑UTI Energy
Long‑tenured CEO who led Patterson‑UTI’s 2023 merger with NexTier, creating a scaled U.S. drilling and well‑completions leader.
Bio | Company | News (Merger)
Michael Jardon
Chief Executive Officer, Expro
CEO since 2016; previously held senior roles at Schlumberger and Vallourec, now steering Expro’s well construction, well flow and subsea access portfolio.
Bio | Company | Investor Relations
Olivier Le Peuch
Chief Executive Officer, SLB
CEO since August 2019; leading SLB’s digital and subsea strategies, including partnership in the OneSubsea JV with Aker Solutions and Subsea 7.
John Lindsay
President & Chief Executive Officer, Helmerich & Payne
CEO since 2014; championed FlexRig and drilling automation initiatives while maintaining H&P’s focus on high‑efficiency U.S. land drilling.
Bio | Company | Investor Relations
Jeff Miller
Chairman, President & Chief Executive Officer, Halliburton
Chairman, President & CEO; led Halliburton through a returns‑focused strategy and continued technology investments across completions and production.
Bio | Company | Investor Relations
Tony Petrello
Chairperson, President & Chief Executive Officer, Nabors Industries
Chairman, President & CEO; long‑standing leader of a global land drilling contractor with a large high‑spec rig fleet and technology offerings.
Doug Pferdehirt
Chair & Chief Executive Officer, TechnipFMC
Chair & CEO; architect of the integrated subsea model (iEPCI) and overseer of the Technip Energies separation and leadership handover.
Arnaud Pieton
Chief Executive Officer, Technip Energies
CEO since the spin‑off; driving EPC excellence and decarbonization projects as Technip Energies grows in carbon capture and low‑carbon solutions.
Alessandro Puliti
Chief Executive Officer & General Manager, Saipem
CEO & General Manager since 2022; guiding Saipem’s growth in low‑carbon opportunities like green ammonia and offshore wind alongside core EPCI work.
Paolo Rocca
Chairman & Chief Executive Officer, Tenaris
Chairman & CEO since 2002; leads one of the world’s largest OCTG and tube suppliers serving global energy markets with an integrated industrial footprint.
Bio | Company | Investor Relations
Girish K. Saligram
President & Chief Executive Officer, Weatherford International
President & CEO since October 2020; widely credited with Weatherford’s operational and financial resurgence following a multi‑year transformation.
Bio | Company | Investor Relations
Lorenzo Simonelli
Chairman & Chief Executive Officer, Baker Hughes
Chairman & CEO; oversaw the 2017 GE Oil & Gas–Baker Hughes combination and continues to reshape Baker Hughes as a diversified energy technology company.
Clay C. Williams
Chairman & Chief Executive Officer, NOV Inc.
Chairman & CEO since 2014; guided NOV through multiple industry cycles and continues to drive succession and portfolio simplification initiatives.
Bio | Company | Investor Relations
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