TRG Supply is a manufacturer and supplier of oil storage vessels. We fabricate horizontal and vertical tanks in pressurized and atmospheric configurations, in carbon steel, stainless steel, and specialty alloys, sized from process-scale vessels to bulk terminal storage with full material traceability and inspection documentation.
Because oil storage often sits alongside separation, drying, and gas handling, we coordinate tank fabrication within a broader scope of custom industrial pressure vessels so connection points, footprints, and code packages stay consistent across the installation.
We regularly fabricate for oil and gas operators, EPC contractors, refineries, pipeline and midstream companies, petrochemical plants, and industrial manufacturers that store and process oils on site. ASME-certified construction is available where the application calls for a pressure-rated vessel.
An industrial oil tank is a fabricated storage vessel designed to hold large volumes of crude oil, refined petroleum products, lubricating oils, or specialty oils under controlled conditions at a commercial or industrial facility. It is built to a recognized code, fitted with safety and monitoring systems, and sized for process throughput rather than household use.
An industrial oil storage system buffers supply and demand across operations: holding produced crude before transport, staging refined product before distribution, feeding lubricants into manufacturing lines, or storing transformer oil for utility infrastructure. Capacity, pressure rating, and material are all driven by what the tank stores and where it sits in the process.
The distinction matters for buyers. A residential oil tank is a small heating-oil container, typically a few hundred gallons, sold as a finished consumer product. An industrial oil storage tank is a custom-fabricated, code-stamped asset, often thousands of barrels in capacity, designed for a specific facility and built under ASME or API standards with documented material certifications and inspection records. TRG Supply does not supply residential heating-oil tanks.
The right tank depends on the product stored and its operating conditions. These are the four configurations we fabricate most often.
Used at gathering sites, stabilization facilities, and terminals to hold produced or transported crude. Design considerations include water and sediment separation, vapor management, and resistance to corrosive sour crude. Common across upstream and midstream operations, these tanks are frequently built to API 650 for atmospheric service or API 620 where low-pressure vapor control is required.
For gasoline, diesel, jet fuel, and other finished products at refineries and distribution terminals. Cleanliness and contamination control drive the design, since refined products are sensitive to rust and residue, so coatings and stainless internals are common. These tanks serve downstream processing and fuel distribution.
Installed inside process plants to store base oils, hydraulic fluids, and finished lubricants. Design priorities are cleanliness, temperature control, and protection against moisture ingress that would degrade the oil. Common in industrial manufacturing, power generation, and heavy equipment operations.
For dielectric and insulating oils used by utilities and electrical infrastructure. Storage must keep the oil dry, clean, and contamination-free to preserve its insulating properties. These tanks serve utility and energy facilities and substations.
| Tank Type | Stored Product | Typical Application | Common Industry | Typical Standards |
| Crude Oil Storage Tank | Produced and transported crude | Gathering, stabilization, terminals | Upstream & midstream oil and gas | API 650, API 620 |
| Refined Product Storage Tank | Gasoline, diesel, jet fuel | Refinery and distribution storage | Downstream refining, fuel distribution | API 650, ASME Section VIII |
| Lubricating Oil Tank | Base oils, hydraulic fluid, lubricants | On-site process and equipment supply | Industrial manufacturing, power gen | ASME Section VIII |
| Transformer Oil Tank | Dielectric / insulating oil | Substation and equipment storage | Utility and energy | ASME Section VIII, API 650 |
TRG Supply fabricates to the applicable standard and supplies the documentation to support it. The notes below explain when each standard typically applies and are not regulatory advice.
Governs the design and fabrication of pressure vessels. It applies when an oil storage tank operates under internal pressure beyond atmospheric, such as pressurized process vessels or fuel systems that hold product above ambient pressure. ASME-stamped construction matters because it certifies the vessel was built and tested to a recognized pressure-containment code. Our ASME-certified pressure vessel fabrication covers oil storage applications that require a pressure rating.
The standard for welded atmospheric storage tanks, widely used for crude oil and refined product storage at near-ambient pressure. It applies to most large vertical bulk tanks at terminals and tank farms. Compliance matters because API 650 sets the design, welding, and inspection rules that operators and authorities expect for atmospheric petroleum storage.
Covers large, low-pressure storage tanks that operate above atmospheric but below the pressure-vessel threshold, typically up to around 15 psig. It applies where vapor pressure or product characteristics require more containment than an open atmospheric tank but less than a full pressure vessel. It is common for certain crude and volatile-product storage.
The workhorse for most crude and bulk petroleum storage. It offers structural strength and cost efficiency for large tanks. Carbon steel typically relies on internal and external coatings for corrosion protection, especially where water or sour product is present.
Chosen where corrosion resistance and product cleanliness are critical, such as refined products, lubricants, and transformer oil that cannot tolerate rust or contamination. It costs more but reduces coating dependence and maintenance.
Specified for aggressive service, including high-sulfur crude, elevated temperatures, or chemically demanding environments where standard steels would degrade. Alloy selection is matched to the specific corrosion mechanism in play.
Beyond the base material, corrosion mitigation comes down to coatings and design. Internal coatings protect the wetted surface from water bottoms and corrosive product; external coatings and cathodic protection guard against atmospheric and soil-side corrosion. A practical specification combines the right alloy, the right lining, and accessible inspection points so corrosion can be managed over the tank’s life.
Industrial oil storage carries fire, spill, and overpressure risks, so safety systems are part of the tank specification. These features protect personnel, the facility, and the surrounding environment.
Designing these systems into the tank from the start keeps the installation compliant and the facility running without unplanned shutdowns.
API 650 covers welded atmospheric storage tanks operating at near-ambient pressure, common for crude and refined product storage. API 620 covers large, low-pressure tanks operating above atmospheric but below the pressure-vessel threshold, used where vapor pressure requires additional containment.
The main standards are ASME Section VIII for pressurized vessels, API 650 for atmospheric storage tanks, and API 620 for low-pressure storage tanks. The exact standard that applies depends on the tank’s pressure, capacity, and role in the process.
Carbon steel is standard for most crude and bulk storage, stainless steel is used where corrosion resistance and product cleanliness are critical, and specialty alloys are specified for aggressive or high-temperature service. Internal and external coatings add corrosion protection.
Yes, when the application requires a pressure rating. TRG Supply provides ASME Section VIII pressure-rated oil storage tanks, as well as API 650 and API 620 builds for atmospheric and low-pressure storage.
Start with the stored product, required capacity, and operating pressure, then match the governing code, material, and corrosion protection to your site conditions. Our team reviews these factors during consultation and recommends a tank built to your specification.
Depending on the application, features include pressure relief, venting, level monitoring, overfill protection, secondary containment, and inspection access. These protect against overpressure, spills, and contamination.
Upstream and midstream oil and gas, downstream refining, petrochemical facilities, industrial manufacturing, and utility and energy operations all rely on industrial oil storage tanks for crude, refined products, lubricants, and specialty oils.
Some fuel storage tanks are designed for temporary or modular deployment, allowing repositioning as operational needs change while maintaining safety and compliance.
Each tank is supplied with code-compliant documentation, including fabrication records, inspection reports, and certification data, supporting regulatory review and long-term inspection.
Yes. Commercial fuel tanks can be supplied with connection points, orientations, and configurations to match existing piping, refueling stations, or transfer systems.
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