Integrated drilling, completions, testing and production solutions for operators across Egypt, Iraq and the wider MENA region — backed by field-proven engineering and disciplined execution.
About SubTerra
SubTerra Oilfield Services is a leading provider of advanced oilfield solutions, headquartered in Egypt, with operations spanning the Middle East and North Africa. The company was formed through the acquisition of International Oil Services (IOS), bringing its engineering teams, technical systems and operating history into a single, unified brand.
As a trusted partner to national and international operators, we specialize in optimizing upstream operations through drilling, completion, testing and production solutions — combining deep regional knowledge with disciplined engineering to reduce cost and improve well performance.
Our mission is to give clients efficient, reliable and sustainable solutions that maximize reservoir potential and support long-term energy success, backed by industry specialists and a continued investment in technology.
Vision
To be recognized for technical excellence, operational integrity and sustainable energy solutions — setting new benchmarks in performance, safety and environmental responsibility across every market we serve.
Mission
Core values
The highest ethical standards in every action and decision, in the field and at the corporate level.
Continuously adopting advanced technologies and engineering practices to deliver performance-driven results.
Prioritizing the health and safety of our teams, clients and communities through disciplined, proactive risk management.
Environmentally responsible operations that create long-term value for clients, partners and society.
Executing every project with operational efficiency and a commitment to outperforming industry benchmarks.
Transparent partnerships with clients, suppliers and stakeholders, built toward shared success.
Services portfolio
SubTerra delivers a fully integrated portfolio of upstream and mid-stream services spanning drilling, formation evaluation, completions, testing and production optimization — engineered for complex well architectures, HPHT environments and diverse reservoir challenges.
End-to-end fluids engineering for vertical, deviated, horizontal and HP/HT wells.
Real-time drilling monitoring and surface formation evaluation.
Mechanical and hydraulic liner hangers for challenging wellbore conditions.
Downhole completion tools for long-term well integrity and reservoir isolation.
DST solutions for exploration, appraisal and production wells.
Flowback, cleanup and production testing with HP/HT certified equipment.
Flow assurance and integrity chemicals, delivered with a global technology partner.
Precise wellbore pressure control for narrow-margin and depleted reservoirs.
End-to-end project ownership across the full field development cycle.
Track record
From the spud of the well to production, SubTerra supports operators with fully integrated solutions engineered for safety, efficiency and cost-effectiveness. Our multi-disciplinary teams coordinate seamlessly across drilling, completions, testing and production — and we continue to expand our portfolio through new technology, engineering capability and strategic partnerships.
These numbers represent operating history carried forward from IOS into SubTerra, across diverse well environments and operator requirements in Egypt, Iraq and the wider MENA region.
Market presence
Our operational footprint in Egypt, Iraq and the wider MENA region positions SubTerra at the heart of some of the world's most active energy markets, supported by local offices and rapid-response field teams.
We place strong emphasis on local requirements, regulatory frameworks and cultural dynamics — allowing us to operate seamlessly across borders in coordination with NOCs, IOCs and service partners.
Technology partnerships, including our production chemicals collaboration with Innospec, give us access to global R&D, supply chain capability and world-class solutions for complex operations.
Why operators choose SubTerra
Trusted, reliable, performance-driven oilfield solutions — at global standards.
HSE & quality
SubTerra operates in full compliance with operator requirements, national regulations and international standards — supported by robust systems, risk management and certified training.
A safety-first mindset across every field and office operation. Every employee and contractor can stop work, report hazards and take preventive action.
Operations are planned and executed using structured risk assessment and permit-to-work systems, so hazards are identified, mitigated and monitored.
Adherence to local regulatory frameworks, international HSE guidelines and operator-specific standards, following API and ISO procedures.
Every service is performed under detailed standard operating procedures, ensuring consistency and operational discipline across all job sites.
Strict QA/QC procedures across every division, including calibration, traceability and method validation with certified equipment.
KPIs, service quality indicators and continuous improvement cycles to monitor performance, reduce NPT and enhance delivery.
Get in touch
We look forward to supporting your operations with reliable, efficient and innovative oilfield services — from well planning through production.
Email our team