Powering Global Progress through Energy and Innovation

Complementary General Trading and Oil & Gas Services connects global industries with high-quality oil, petrochemical, and energy solutions—driving infrastructure, agriculture, and industrial development worldwide.

Global Expertise. Reliable Supply. Sustainable Growth.

Complementary General Trading and Oil & Gas Services is an international exporter and service provider in the oil, gas, and petrochemical sectors.
The company delivers premium commodities such as bitumen, urea, and refined petroleum products while providing integrated field services that support exploration, drilling, and production operations.

Built on principles of transparency, performance, and trust, we connect producers with global markets through efficient logistics, competitive pricing, and dependable sourcing. Our objective is to sustain long-term partnerships and strengthen energy infrastructure that supports economic growth across continents.

Mission-Driven Leadership in Energy and Engineering

Our mission is to create tangible value for clients by combining technical expertise with operational reliability. We aim to simplify global energy trade, enhance production efficiency, and maintain uncompromising quality standards. Every operation reflects our commitment to integrity, safety, and innovation—ensuring that our solutions consistently meet international benchmarks.

Vision for a Connected and Sustainable Energy Future

Our vision is to become a leading integrated energy solutions provider that enables industrial and national development across emerging and established markets. Through diversification, advanced technology, and a client-centered approach, Complementary General Trading and Oil & Gas Services seeks to shape a resilient global supply network that drives progress responsibly.

Subcompany of Complementary LLC

Black Barrel Oil Services operates as the specialized environmental and surface protection division of Complementary Co LLC, delivering engineered geosynthetic solutions to the oil, gas, and industrial infrastructure markets. With deep technical knowledge and field experience, we design, supply, and install lining systems that mitigate contamination risks, enhance site safety, and extend asset life.

Our portfolio includes liners for drilling ponds, wastewater treatment facilities, and contamination pits; multi-layer systems for tunnels; geofabrics for pipelines, roads, and landfills; as well as flare- and fire-resistant solutions for high-temperature sites. We also supply drainage, filtration, and slope stabilization systems for complex geotechnical environments.

Each project is executed with strict adherence to international engineering and environmental standards, ensuring regulatory compliance and operational integrity. Through innovation, precision, and on-site expertise, Black Barrel Oil Services provides reliable, long-term containment and protection solutions that support sustainable growth in the global energy sector.

Our services include:

Lining ponds for oil and gas drilling operation
Liner for waste water treatment
Tunnels special multi-layer lining systems
Liner for contamination pits
Pipeline protection geofabric
Road separation geofabric and geotextile
Road separation geofabric and geotextile
Landfill lining materials
Flare and fire resistance liner
Draining and filtering liners
Slope stability liners

Comprehensive Oilfield and Industrial Services

Beyond trading, Complementary General Trading and Oil & Gas Services delivers specialized oilfield and industrial support solutions designed to optimize field performance and extend asset life. Our service portfolio covers every stage of the energy lifecycle—from exploration to production and maintenance.

Drilling and Workover Services
Tubular Running Services
Fishing
Thru Tubing Services
Coil Tubing Services
Surface Well Testing and EPF Services
Heaters and Heat Exchangers
Boilers
Production Technology