Leading Underground Fuel Storage Tank Manufacturer in Oman

Cochin Steel Oman is a leading manufacturer and supplier of underground fuel storage tanks (UST) in the Sultanate of Oman, delivering high-performance, safety-compliant storage solutions for petrol, diesel, and industrial fuels. Strategically located in Airport Heights, Muscat, we bring over 18 years of engineering excellence to industries across Muscat, Sohar, Salalah, Duqm, and the wider GCC region.

Underground fuel storage tanks are a critical component of modern fuel infrastructure, particularly in urban environments where safety, space optimization, and environmental protection are essential. These tanks are engineered to store flammable liquids securely beneath ground level, reducing exposure risks and improving operational efficiency.

Cochin Steel Oman specialises in designing, fabricating, and installing underground tanks that comply with international standards while addressing the unique environmental and regulatory requirements of Oman.

What Are Underground Fuel Storage Tanks (UST)?

Underground fuel storage tanks are specially designed containers installed below ground level to store petroleum products such as petrol, diesel, and other hazardous liquids. A tank is typically classified as underground when a significant portion of its volume is installed beneath the surface. 

These tanks are widely used in:

  • Fuel stations 
  • Industrial plants 
  • Oil & gas facilities 
  • Commercial infrastructure 

Their primary purpose is to:

  • Minimize fire hazards 
  • Prevent environmental contamination 
  • Optimize land usage 
  • Ensure safe fuel storage and distribution 

Types of Underground Fuel Storage Tanks

Cochin Steel Oman offers a comprehensive range of underground tank configurations tailored to different applications:

1. Single-Wall Underground Tanks

  • Basic storage solution 
  • Cost-effective for controlled environments 
  • Suitable for low-risk applications 

2. Double-Wall (Bunded) Underground Tanks

  • Secondary containment system 
  • Leak detection capability 
  • High environmental protection 

3. Fiberglass-Coated Steel Tanks

  • Corrosion-resistant exterior 
  • Extended lifespan 
  • Ideal for coastal regions 

4. Compartmentalized Tanks

  • Multiple fuel types in a single unit 
  • Efficient space utilization 
  • Suitable for fuel stations 

5. Skid-Integrated Underground Systems

  • Pre-engineered modular solutions 
  • Faster installation 
  • Integrated dispensing systems 

Advanced Engineering and Manufacturing Excellence

At Cochin Steel Oman, underground fuel storage tanks are manufactured using advanced fabrication technologies at our Muscat facility.

Manufacturing Capabilities:

  • CNC precision cutting 
  • Plate rolling and shell fabrication 
  • Automated MIG and Arc welding 
  • Dish-end manufacturing 
  • Non-Destructive Testing (NDT) 

These processes ensure:

  • Leak-proof construction 
  • Structural strength 
  • Uniform welding quality 
  • Long operational lifespan 

Technical Specifications and Materials

Our underground fuel storage tanks are engineered using premium-grade materials to ensure durability and performance.

Materials Used:

  • Mild Steel (ASTM A36, ASME SA516 Grade 70) 
  • Stainless Steel (SS304 / SS316L for specialized applications) 
  • Composite coatings for corrosion resistance 

Specifications:

  • Capacity: Custom-designed (small to large-scale) 
  • Thickness: 3mm to 20mm 
  • Configuration: Horizontal cylindrical tanks 
  • Coating Systems: Epoxy, polyurethane, Zinc Alume 

Underground tanks are typically designed with protective coatings and cathodic protection systems to prevent corrosion and extend service life. 

Design Standards and Compliance

Cochin Steel Oman ensures that all underground fuel storage tanks comply with international and local standards:

Key Standards:

  • API 650 – Welded steel storage tank design 
  • API 620 – Low-pressure storage tanks 
  • ASME Codes – Pressure vessel standards 
  • ISO 9001:2015 – Quality management 
  • Oman MoCIIP Regulations 

API 650 provides guidelines for design, fabrication, welding, and inspection, ensuring tanks are safe, durable, and reliable for long-term use. 

Key Features of Our Underground Fuel Storage Tanks

1. Leak Detection Systems

Advanced monitoring systems detect leaks early, preventing environmental contamination.

2. Corrosion Protection

Use of coatings, linings, and cathodic protection systems for long-term durability.

3. Secondary Containment

Double-wall designs provide additional safety against fuel leaks.

4. Space Optimization

Installed underground to maximize usable surface area.

5. Fire and Explosion Safety

Minimizes exposure to ignition sources.

6. Long Service Life

Designed to operate efficiently for decades with minimal maintenance.

Applications Across Industries in Oman

Underground fuel storage tanks are essential across multiple sectors:

Fuel Stations

  • Petrol and diesel storage 
  • Integrated dispensing systems 

Oil & Gas Industry

  • Bulk fuel storage 
  • Pipeline and terminal operations 

Commercial Infrastructure

  • Backup fuel systems for buildings 
  • Emergency power systems 

Transportation & Logistics

  • Fleet fueling infrastructure 
  • Depot storage systems 

Industrial Facilities

  • Fuel storage for heavy machinery 
  • Manufacturing plants 

Environmental and Safety Considerations

Underground fuel storage systems are designed to minimize environmental impact and ensure compliance with strict safety regulations.

Environmental Protection Features:

  • Spill containment systems 
  • Leak detection sensors 
  • Groundwater protection measures 
  • Corrosion-resistant materials 

Regulatory frameworks globally emphasize leak prevention and environmental safety due to risks associated with underground fuel storage. 

Installation and Site Engineering

Cochin Steel Oman provides complete installation services, ensuring seamless project execution.

Installation Process Includes:

  • Site assessment and soil testing 
  • Excavation and foundation preparation 
  • Tank placement and alignment 
  • Backfilling and compaction 
  • Pipeline and system integration 
  • Testing and commissioning 

Our experienced engineering team ensures compliance with all safety and regulatory standards during installation.

Customization and Engineering Flexibility

Every project is unique, and we provide fully customized underground tank solutions.

Customization Options:

  • Tank capacity and dimensions 
  • Single or multi-compartment designs 
  • Integrated fuel dispensing systems 
  • Advanced monitoring and automation 
  • Specialized coatings for extreme environments 

Export and GCC Supply Capability

From our Muscat facility, Cochin Steel Oman exports underground fuel storage tanks across:

  • Oman (Muscat, Sohar, Salalah, Duqm) 
  • UAE, Saudi Arabia, Qatar, Kuwait, Bahrain 
  • Africa and Asia  

Our logistics expertise ensures:

  • Efficient packing 
  • Reduced shipping costs 
  • Fast project execution 

Why Choose Cochin Steel Oman

Proven Experience

Over 18 years of expertise in fuel storage solutions.

Engineering Excellence

Highly skilled team with advanced manufacturing capabilities.

Custom Solutions

Tailored designs for each project.

Local Expertise

Deep understanding of Oman’s regulatory and industrial landscape.

End-to-End Support

From design and fabrication to installation and maintenance.

Frequently Asked Questions (FAQs)

What fuels can be stored in underground tanks?

Diesel, petrol, aviation fuel, and other petroleum products.

Are underground tanks safer than above-ground tanks?

Yes, they reduce fire risks and environmental exposure.

Do you provide leak detection systems?

Yes, all tanks can be equipped with advanced monitoring systems.

Can tanks be customized?

Yes, fully customizable based on project requirements.

Do you provide installation services?

Yes, complete turnkey solutions are available.

Cochin Steel Oman is a trusted partner for underground fuel storage solutions in the Sultanate, delivering advanced engineering, global compliance, and unmatched reliability. Our underground fuel storage tanks are designed to meet the highest standards of safety, durability, and environmental protection, ensuring long-term operational efficiency for your business.

Contact Us

COCHIN STEEL OMAN
Airport Heights, Muscat, Sultanate of Oman
P.O. Box 3818, PC 111
 +968 9951 1615
 sales@cochinsteeloman.com
 www.cochinsteeloman.com

Exports

Cochin Steel Oman leverages its extensive engineering knowledge and robust logistics network to deliver our products worldwide. Our dedicated export team possesses deep experience in international trade, ensuring strict compliance with accurate shipping terms and global customs documentation. We have built fantastic relationships with world-class freight forwarders, enabling us to ship to some of the most extreme and remote locations around the world. Even if you think your end destination may be a logistical challenge, please let us know, we will find a seamless transport solution for you.

Note:

Operating from our strategic base in the Sultanate of Oman, we serve all major national regions, including Muscat, Sohar, Salalah, Duqm, Sur, and Nizwa. Beyond Oman, we have established a strong global footprint through the successful export and installation of storage tanks, silos, and fabrication solutions across: The GCC & Middle East: United Arab Emirates (Dubai, Abu Dhabi, Sharjah, Ras Al Khaimah, Ajman, Umm Al Quwain, Al Ain, Fujairah), Saudi Arabia (Riyadh, Jeddah, Dammam, Mecca, Medina, Khobar, Jubail, Yanbu, Tabuk, Hail), Kuwait, Qatar, Bahrain, Syria, Iraq, Libya, and Yemen. Africa: Egypt, Sudan, Ethiopia, Somalia, Nigeria, Democratic Republic of Congo, Djibouti, Eritrea, Kenya, Ghana, Tunisia, Morocco, Tanzania, and Uganda. Asia: The Maldives and other emerging industrial markets.

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