One of Nigeria’s Coring Authorities

Two Decades of Upstream Precision and Downstream Energy Solutions

Precision Coring.
Trusted Reservoir Intelligence.

Providing accurate subsurface data through specialized
coring operations that support smarter exploration and
production decisions.

Built for Challenging Environments

From planning to execution, our experienced teams
deliver safe, efficient, and dependable coring solutions in
complex operating conditions.
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Years of Experience

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Projects Delivered

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countries serviced across Africa

200 %

Zero LTIs

Our 20-Year Legacy

Established in 2006, Cortech Oil Services Limited (COSL) is a 100% indigenous company with over 20 years of proven experience delivering world-class integrated solutions across the energy value chain. We operate two pillars of excellence: our Upstream Division specialises in high-precision core retrieval and facility integrity, while our Downstream Division drives energy accessibility as a premier LPG Off-taker.

Our approach combines technical excellence and operational efficiency with an unwavering commitment to safety, quality, and environmental responsibility. We are driven by long-term partnerships, innovative solutions, and a deep understanding of the evolving energy landscape—positioning us as a trusted partner in delivering value across the energy value chain.

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OUR SERVICES

Technical Authority on Coring Retrieval

COSL stands as a leading technical authority on high-specification core retrieval within Nigeria. Utilizing an elite suite of premium technologies and proprietary methodologies

Perfomance tools and Integrity Solutions

We provide an elite fleet of high-performance down-hole tools maintained to international standards, designed to maximize drilling efficiency and production outcomes in the most

Pipeline and Infrastructure

Expert project management for onshore pipeline construction, backed by a proven track record of successful project delivery.

LPG Off-taking and Distribution Networks

Bridging the gap between bulk production and the domestic end-user through a robust supply chain and a growing network of regional distribution outlets.

Trusted by these companies and more