Meet our Sustaining Sponsors

Find out more about our fantastic GESGB Sustaining Sponsors below.
We are so grateful for their invaluable support to the society, which allows us to achieve our vision of community, technical excellence and charitable goals.

Please contact for more information on how to become a Sustaining Sponsor.


ERCE is a global energy, climate and sustainability consultancy providing expertise in subsurface, facilities and commercial services. For over four decades, our independent thinking and industry-leading expertise has been supplying the uncompromising answers the energy industry needs to reliably power our world.

Our Energy division focuses on oil and gas, and the future of energy, providing expertise and integrated solutions for the most complex challenges.

Our Climate and Sustainability division focuses on the Energy Transition, using our technical and commercial expertise to support client net zero strategies.


CGG is a global technology and HPC leader that provides data, products, services and solutions in Earth science, data science, sensing and monitoring.

Our unique portfolio supports our clients in efficiently and responsibly solving complex digital, energy transition, natural resource, environmental, and infrastructure challenges for a more sustainable future















Thunder Exploration, Inc. is a privately held, internally funded oil and gas production and investment company organized in 1981, based in Houston, Texas. Its founder and principal, Walter S. Light, Jr. is a petroleum geologist with over 46 years of broad industry experience and is a graduate of the University of Texas at Austin.

Thunder generates drilling prospects in the United States and participates in drilling oil and gas wells and projects on a non-operated basis. Currently, Thunder Exploration has production under ~40 US-based operators, ranging from international majors to privately-owned concerns. With both geological and operational experience in planning and executing both vertical and horizontal wells in various plays and producing trends in the US. The company’s team of professional consultants and contractors provide a full complement of industry disciplines when required.

Using Mr. Light’s geological and business experience, Thunder also actively invests in public-traded, US and international E&P companies as well as participating in pre-IPO funding of start-up companies. Thunder continues to seek both US and international opportunities that build long-term business relationships in all investment arenas.

Contact: Walter S. Light, Jr. President / Geologist    +1 713.823.8288


Geolog International (GEOLOG) is a world leader in energy industry services delivering solutions and expertise to National, International and Independent Oil, Gas, Geothermal and CCUS operators globally.

Since its founding in Milan, Italy, in 1982, GEOLOG has developed effective and cost-effective alternative and complementary solutions to complex and expensive downhole measurement tools. Through the application of our in-house AI and data science expertise, together with the optimisation of formation, fluid and reservoir analyses, customer KPI’s are improved, well delivery is optimized and production delivery is accelerated.

As part of its strategy to become the global supplier of choice, GEOLOG has gained experience in over 70 countries worldwide, performing services and assisting operators through the entire life-cycle of the oil & gas asset from unconventional land to ultra-deepwater and HPHT Plays to carbon capture and storage.

In addition, our extensive experience in surface logging medium to high enthalpy geothermal wells across the Globe, places GEOLOG at the forefront of this valuable resource for many years to come.

Through passion for innovation and technology, GeoSoftware is the global trusted partner for advanced geoscience software and consulting services that enable the global energy industry to make the most efficient and accurate decisions that responsibly deliver global energy security.

The GeoSoftware portfolio includes Jason, HampsonRussell, PowerLog®, and InsightEarth®.









Ikon Science is a global provider of geopredictive and knowledge management software and solutions to optimize subsurface discovery and production.

For over 20 years, Ikon’s dedicated service-minded teams have applied deep scientific expertise and technology innovation to help customers extract more actionable knowledge from sophisticated subsurface data.











Ithaca Energy is a leading independent oil and gas operator in the North Sea with a strong track record of material value creation.Founded in 2004, Ithaca Energy has been on a rapid growth trajectory in the last three years, following a series of transformational M&A transactions and organic growth, building operations with significant scale and longevity. Today, Ithaca Energy is one of the largest independent oil and gas companies in the UKCS, ranking second by resources and third by production.
With stakes in six of the ten largest fields in the UK North Sea and two of largest three prospective developments, we play a pivotal role in meeting the current and future energy needs of the UK. We do not take this responsibility lightly, recognising that oil and gas will continue to play an important part of the long-term energy mix as we navigate the energy transition.
Our commitment to delivering attractive and sustainable returns is supported by a well-defined emissions-reduction strategy with a target of achieving net zero by 2040.

Oilfield Production Consultants (OPC) is a global technical services consultancy to the exploration and production industry.

Established in 1988, OPC provides fully integrated geosciences, subsurface engineering, production technology, welltesting, reservoir surveillance and management expertise to NOCs, IOCs and Independents in the oil and gas sector.

We have offices in London, Aberdeen, Stavanger, Atyrau, Nur-Sultan, Doha, Perth, Dubai and Houston with representative offices in Kuwait, Abu Dhabi, Malaysia and Egypt. We have staff, consultants and technology deployed in-house at OPC and externally at our clients’ offices and well sites.





Shearwater’s technology, innovation and client collaboration deliver exceptional geophysical results.

Our powerful fleet, with modern technology, is manned by experienced crews working safely and efficiently to deliver a cost-effective high-quality service.

Our software, agile Processing & Imaging expertise, enables reduced costs and flexibility. Shearwater’s intuitive processing software, Reveal, offers modern powerful seismic data analysis.

Shearwater is committed to geophysics.






Shell is a global group of energy and petrochemical companies with more than 80,000 employees in more than 70 countries. We use advanced technologies and take an innovative approach to help build a sustainable energy future.

Our current Powering Progress strategy aims to accelerate the transition of our business to net-zero emissions. It is designed to create value for our shareholders, customers and wider society.


Gaia Earth Group provides worldwide services supporting safe and efficient formation evaluation operations and reducing risk and cost for our clients:

QA/QC for Wireline Logging, MWD & LWD

Gaia Cable Protection System (GCPS): Our system to predict and prevent cable sticking and keyseating

Research & Development: future conveyance technologies including cable-mounted sensing packages

Petrophysical Services


John H Martin Associates provides pre-unitisation, unitisation and equity redetermination support, advice and expert roles.

M&A due diligence, integrated subsurface project management, peer review or audit and co-ordination/editorial input to optimise the effectiveness of bids, submissions and other key technical documents. Seminars and workshops: remote or in-house.





Lynx Information Systems specialises in the provision of geological and geophysical data services to the Upstream Oil Industry. Founded in 1989 and with a global client base, Lynx is a recognised world leader in the field of data management and enhanced visualisation of national and corporate scale E&P data archives.

From National Data Repositories and Virtual Datarooms, to digital reconstruction of seismic and well log data, Lynx has been responsible for pioneering industry work such as the establishment of the UK Onshore Geophysical Library ( and the Exploration Fabric of Africa GIS (


TRACS International is an independent subsurface advisory and training consultancy that has supported a diverse portfolio of international clients in the energy industry for more than 30 years.

We offer a powerful combination of experience with breadth and depth of technical skill in the following areas: field & technical studies, valuations & due diligence, and energy transition studies.

Our track record stands for itself. Over the last five years, we have completed more than 250 field and technical studies, over 100 Competent Person’s Reports (CPRs) and valuations, and delivered over 150 technical and commercial training courses for over 2,000 participants each year. In more recent years, around a third of our projects have been energy transition activities. 








Find out more about what being a Sustaining Sponsor involves and how easy it is to become one here!

Please contact for more information or any questions.