Belltree and G2Y Energy Services LTD Launch Strategic Alliance to Accelerate Oil & Gas Development Across Sub-Saharan Africa

Belltree and G2Y sign partnership agreement

[Edinburgh, 04 September 2025] — Sub-Saharan Africa, home to nearly 4 billion barrels of proven oil
reserves, is emerging as a critical region for global energy exploration. Addressing the sector’s
complex challenges requires a blend of expertise and innovation. Today, Belltree, a UK-based
consultancy specializing in advanced upstream oil and gas analytics and reserves optimization, and
G2Y Energy Services LTD, an energy consultancy with extensive experience in African and Caribbean
markets, announce a strategic alliance to advance resource optimization and sustainable energy
development across the region.


The partnership combines Belltree’s pioneering analytics technology with G2Y’s deep regional
knowledge to enhance reserve recovery, accelerate project execution, and enable informed
investment decisions. Together, Belltree and G2Y aim to empower governments, national oil
companies, and operators to maximize hydrocarbon value while adhering to sustainability
imperatives.

Empowering Sub-Saharan Africa and the Caribbean Energy Sectors

Building on a long-standing collaboration, this alliance focuses on:

  • Optimizing resource management through proven technological solutions.
  • Enhancing data integration and analytical capabilities for timely decision-making.
  • Delivering tailored strategies balancing operational efficiency, environmental responsibility,
    and economic growth.
  • Supporting reserves benchmarking to guide regulatory and investment decisions.
Proven Expertise

Headquartered in Edinburgh, Belltree brings decades of experience in subsurface evaluation and
reserves optimization. Its recent success with an Angolan operator, achieving a 30% production
increase in 2023 through enhanced reservoir throughput and efficiency, highlights its impact in the region. G2Y offers deep insights and transformative projects across Sub Saharan Africa and the
Caribbean, led by CEO Dr. Gilbert Y. Yevi, a Petroleum Engineer with 30 years of global experience.

Looking Forward

“By merging Belltree’s analytics with G2Y’s regional expertise, we are positioned to address the
unique challenges of Sub-Saharan Africa’s energy sector,” said Grant Stewart, Business Development
Director at Belltree. “Our goal is to enhance recovery rates, streamline developments, and support
economic and environmental objectives.” Dr. Yevi added, “This alliance represents a new benchmark
in sustainable resource optimization, vital for energy security and growth.”


Pilot projects will commence in Q3 2025, accompanied by webinars exploring collaboration
opportunities.
The partnership is already active in Grenada. It leads a consortium to evaluate and promote the
country’s basins.

Technical assurance given at Final Investment Decision

Greenfield oil development offshore Mexico; 1500MMstb in place

  • bMark™ helped identify twelve (12) key producing analogues, in the Gulf of Mexico.
  • Data analytics & benchmarking performed on the reservoir data. Production profiles, recovery factor forecasts & development plan supporting the FID case
  • Insights supported the FID mid-case plan & forecasts, whilst also provided guidance on areas for further modelling & sensitivity analysis.

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