UIG offers turnkey solutions for field-erected Above ground and Cut-and-Cover (buried) fuel and water storage tanks, designed and field-erected to API-650 and AWWA D100 standards. UIG provides the design and construction of storage tank foundations. All design, engineering, fabrication, shop priming, and field erection services are performed by highly trained staff. From individual tanks to complete packages, UIG is the top designer, manufacturer and erector of welded steel tanks in carbon and stainless steel. The UIG team brings expert design and construction skills to your project.

For industries that rely on efficient fuel storage solutions, API 650 and AWWA D100 field welded storage tanks have emerged as a reliable and cost-effective option. Among the leading providers of such tanks is United Industries Group (UIG), which offers a range of high-quality field welded storage tanks for various applications, including fuel storage.

Compliance with internationally recognized Standards:

API 650 and AWWA D100 are widely recognized standards that outline the design, fabrication, and installation requirements for welded steel tanks used in the petroleum and water industries. By adhering to these standards, UIG ensures that their field welded storage tanks meet the highest industry requirements for safety, durability, and quality.

Customizable Design and Versatility:

UIG’s field welded storage tanks offer a high degree of customization to meet specific customer needs. These tanks can be designed to accommodate a wide range of storage capacities, from small-scale installations to large industrial facilities. Whether the requirement is for above-ground or underground tanks, UIG can tailor their designs to suit the available space and operational requirements.

Durability and Longevity:

Field welded storage tanks manufactured by UIG are constructed from high-quality steel, ensuring their longevity and durability. These tanks are designed to withstand harsh environmental conditions, including extreme temperatures, seismic events, and corrosive substances. By utilizing advanced welding techniques and strict quality control measures, UIG ensures the tanks’ structural integrity and long-term reliability.

Field Welded Storage Tank with scaffolding
Welded Fuel tank with Scaffolding
Partially buried field welded fuel tank. Airplane landing behind on runway.

Safety and Environmental Considerations:

UIG Field Welded Storage Tanks standard include stringent safety and environmental regulations to ensure the protection of personnel and the surrounding environment. UIG’s field welded storage tanks comply with these regulations, providing features such as leak detection systems, secondary containment options, and appropriate venting arrangements. This focus on safety and environmental consciousness helps companies meet regulatory requirements while safeguarding their operations and reputation.

Ease of Maintenance and Inspection:

UIG field welded storage tanks are designed with easy maintenance and inspection in mind. UIG tanks often include features such as accessible manways, roof hatches, and platforms, allowing for efficient inspection, cleaning, and maintenance activities. 

UIG field welded storage tanks, exemplified by UIG’s offerings, provide numerous benefits for fuel and water storage applications. Their compliance with industry standards, customizable designs, cost-effectiveness, durability, and safety features make them an attractive choice for companies seeking reliable storage solutions.


Field Welded Tank being erected in Saipan
  • Crude Oil
  • Refinery Distillates
  • Drilling Fluids & Muds
  • Brines
  • Acids & Alkalis
  • Potable Water
  • Fire Water
  • Waste Water
  • Ethanol and other Biofuels
  • Vegetable Oils
  • and More…

Field Welded Tank Project Highlights

Workers installing forms for a welded storage tank

South Tank Farm and North Tank Farm inside Bagram US Air Field Base, Afghanistan

Client: Contract International (CII) / United States Army Corps of Engineers (USACE)

Description:  UIG provided design, engineering, fabrication, and construction of seven (7) API 650 std Cut-and-Cover Tanks for a Bulk Fuel Storage System at Bagram Air Field in Afghanistan.

At the South Tank Farm, the scope of work included design, fabrication, and construction of One (1) 500,000 gallon JP-8 Cut-and-Cover Storage Tank and Two (2) 250,000 gallon/each DF-2 Cut-and-Cover Storage Tanks.

At the North Tank Farm, the scope of work included design, fabrication, and construction of Four (4) 1,150,000 gallons/each TS-1 Cut-and Cover Storage Tanks.

Welded Fuel tank with Scaffolding

570,000 USG Welded API 650 std. Bulk Diesel Storage Tank in Saipan, Commonwealth of the Northern Mariana Islands.

Client: Commonwealth Utilities Corporation

Description: UIG provided design, engineering, and fabrication of the storage tank designed to withstand a hurricane wind speed of 175 MPH and Seismic Ss=1.5g and S1 of 0.60g. Installation was performed under strict monitoring of the US EPA.

Three workers installing internal supports

500,000 USG API 650 std JP-8 Tank at Al Udeid US Air Base, Qatar

Client:  American International Contractors, Inc., / United States Army Corps of Engineers (USACE)

Description: UIG provided design, engineering, fabrication, and construction of one (1) 500,000 USG Cut-and Cover Tank for a Bulk Fuel Storage System.

Storage Tank Applications Include 
Water, Petroleum, Terminals, Chemicals, and Petrochemicals in the following storage tank configurations:

Above Ground Bulk Fuel Storage Tanks up to 15,000,000 USG
Cut-and-Cover Bulk Fuel Storage Tanks up to 5,000,000 USG
Self-Supporting Aluminum Dome Roof Tanks with Internal Floating Roofs up to 330 FT in diameter
External CS Floating Roof Tanks (Single Deck Pontoon Type or Double Deck Types)
NFPA 22 Fire Protection Tanks
Rafter supported Cone Roof Tanks up to 50 FT Diameter
Column & Rafter supported Cone Roof Tanks over 50 FT in Diameter
Self-supporting Aluminum Dome Roof Tanks up to 330 FT in Diameter
Self-supporting CS Dome roof tanks up to 100 FT in Diameter
Double Bottom Tanks
Double Wall Tanks
Stand Pipes