ABOUT US            SERVICES            GROUP            SUSTAINABILITY            LEADERSHIP

Our team

Philippe R. Daget
Chief Executive Officer
 
Co-founder, overseeing corporate management, financial & business development, Philippe is a C-level executive with 30+ years in E&P. He has been involved in management of drilling operations & technology, well construction engineering software & advisory services, directional drilling and exploration projects.
Read more
Having held various positions in the senior management of Techdrill International for over 20 years, more recently as chief operating officer, previously as executive vice president running global business development. He joined the company in the 1990s as CFO then director of business & legal affairs. Former managing director of Mercury Energy Advisers, an energy advisory firm engaging in directional drilling & well management in Latin America, geophysical & seismic acquisition in Africa and North America. Prior to that Philippe worked in several law firms and co-managed an international non-governmental organization for 4 years. After graduating in law from Panthéon-Assas University, in Paris, France, he studied law at St John´s College, Oxford University and at the law schools of Harvard and Georgetown University. Member of the Society of Petroleum Engineers.

Close
Roy Devereux
Chief Operations Officer
 
Co-founder, head of seismic operations. Roy has advised some of the world's largest exploration companies. 35+ years in senior positions with Schlumberger, Western Geophysical & ION Geophysical. Former Executive Vice President of RXT and OceanGeo (OBN acquisition).
Read more
Former President RXT do Brazil Multi-Client seismic programs. Survey design experts, Survey logistics & management. Processing, interpretation & prospect development. Roy managed multiple seabed seismic surveys and launched many Multi-Client seismic programs. He has extensive international experience in survey logistics & management. Member of the Society of Exploration Geophysics (SEG) and the European Association of Geophysical Exploration (EAGE).

Close
Peter Stewart
Chief Geophysicist
 
Co-founder, head of geophysics. Geophysicist with 40 years of experience, Peter served in various technical and management positions for 20 years at Schlumberger, 1980-2000. Starting his career with Seismograph Services Limited (SSL);
Read more
after various international postings, such as Team Leader and Center Manager in the Middle East, Europe & South America, Peter was then posted to Houston, TX in 1997 where he became Geophysical Services manager for Schlumberger. In 2000 he joined ION Geophysical until 2017, holding various technical international management positions; Vice-President for world-wide Land, Seabed and Multi-component processing, Head of GX Technology running six global centers. Co-Founder, Chief Technology Officer of Mayfair Energy since 2017. Extensive experience in Africa, North & South America, and the Middle East. Advisor to major international oil companies; an expert in TZ/OBN acquisition, survey design, data processing, imaging, interpretation & prospect development. Peter graduated in Geophysics & Geology from the University of Wales. Peter holds several patents and authored publications. Member of the Society of Exploration Geophysics. (SEG) and the European Association of Geophysical Exploration (EAGE).

Close
Greville Motteram
UG Managing Director
 
37 years of experience in the seismic acquisition industry. Experienced in 2D, 3D and 4D Vibroseis and Dynamite Operations in all terrain types. United Geophysical in 1997 worked with Schlumberger Geco-Prakla and Seismograph Service Ltd as a Seismologist and Party Chief in Peru, Papua New Guinea, Libya, Egypt, Tunisia, Nigeria, Alaska, Texas and South-Eastern USA.
Read more
Joined United Geophysical as a project manager responsible for Shell operations in Nigeria before being promoted to Operations Manager and then Deputy Managing Director in 2005. Appointed Managing Director in September 2017. BSc. Honors degree in Earth Science. MSc in Geophysics. PGDip in Software Engineering and an MBA.

Close
James Lowrie
Head of QHSE
 
James holds an M(Geol) Degree in Geophysics from the University of Leicester, England and has over 20 years of experience in the seismic acquisition industry. After joining United in 2001, has been involved in all acquisition projects for various international and indigenous client including SPDC, NAOC, NPDC, Chevron and Pan Ocean.
Read more
Experienced in 2D, 3D AND 4D dynamite, air gun and vibriosis operations in all terrain types. James has held various supervisory and management roles within the company rising from Geophysicist to Operations Manager in 2005. He was appointed Deputy Managing Director in September 2017.

Close
Richard Kendal
Operations Director
 
Over 40 years of international seismic acquisition experience. Has worked for respected international geophysical service companies. Schlumberger Geco Geophysical for over 17 years, PGS Onshore, commencing his career direct from University in land processing. Spent many years working on seismic crews before crew supervision and management roles and has worked in diverse areas.
Read more
Such as the UK and Europe, South Africa, Libya, Kazakhstan, Kuwait and Saudi Arabia. Served as country manager twice in Nigeria, Tunisia and Algeria. Clients have included Shell, Chevron, BP, ENI, Total, KOC and Saudi Aramco. Joined United Geophysical in April 2017. Bsc (Hons) degree in Environmental Science. NEBOSH International General Certificate in Occupational Health and Safety.

Close
Clémence Roux
Director of Corporate Communications
 
Corporate communications senior executive with 20+ years of experience advising multinationals in marketing & communications. Clémence previously served with TBWA (Harrison & Wolf) in Paris, France where she led corporate communications assignments notably for oil & gas & energy majors, defining strategic communication frameworks.
Read more
Brand & corporate image positioning, shaping sensitive communication strategies, implementing online & offline systems. Clémence holds a master’s from CELSA Communications School of Paris, after graduating in History & Liberal Arts from Sorbonne University.

Close
David Macdonald
Logistics Manager
 
Mr Macdonald has over 25 years’ experience in Land Seismic. He started his Seismic career with United in Nigeria before moving on to PGS in North Africa. Prospectiuni in Europe, Africa & Asia, then Tesla in East Africa, before returning to United in 2017. He specialises in planning, sourcing, procuring equipment requirements, mobilising new crews, often into new countries.
Read more
He was instrumental in the company’s transition from traditional cable equipment to nodal technologies.

Close

Group Executive Committee

The ExCom convenes monthly to review and conduct corporate strategy, financials, ongoing field operations, client deliverables, QHSE practices, new business ventures and technology enhancements.

Philippe R. Daget: Chairman of the Excom and Chief Executive Officer.
Roy Devereux: Chief Operations Officer.
Peter Stewart: Chief Geophysicist.
Greville Motteram: Managing Director, United Geophysical.
James Lowrie: Director of QHSE, United Geophysical.

Group Executive Committee

The ExCom convenes monthly to review and conduct corporate strategy, financials, ongoing field operations, client deliverables, QHSE practices, new business ventures and technology enhancements.

Philippe R. Daget: Chairman of the Excom and Chief Executive Officer.
Roy Devereux: Chief Operations Officer.
Peter Stewart: Chief Geophysicist.
Greville Motteram: Managing Director, United Geophysical.
James Lowrie: Director of QHSE, United Geophysical.

 
Gulfstar Geophysical Exploration

Gulfstar Geophysical Exploration Limited is registered in Cyprus.
Mayfair Energy and United Geophysical (UG) are affiliated companies of our group.
Contact: office@gulfstargeophysical.com
Copyright 2025