
As the unmatched leader in industry expertise and geographic reach, OWL Verify partners with clients to maintain total operational integrity for their fueling infrastructure.
Leveraging 1,500 field technicians across 42 offices, we ensure peak performance at every site. We manage everything from specialized services like AccuMeasure, which protects against fuel shrink and safeguards profits, to the integrity of underground storage tanks. Our system blends the powerful automation of the VAULT platform for documentation and scheduling with the human support of a dedicated account manager—a single point of contact. The result is minimized risk, maximum uptime and the confidence that all fueling systems are effective, documented and absolutely compliant.

OWL Services offers a quick, no-pressure way to understand whether your compliance program is truly protecting your business. Our short Compliance Health Quiz gives you an instant snapshot of strengths, gaps and blind spots—helping you identify risks before they become costly issues. Take the quiz today and make sure your operations are running with the confidence and integrity your customers expect.
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The VAULT is a modular software platform designed specifically for managing fueling system compliance. It centralizes and automates compliance-related tasks, providing maximum visibility and control.
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The platform is designed to streamline operations and ensure proper documentation:



AccuMeasure is OWL’s unique, enhanced form of petroleum meter calibration. As standard petroleum meters wear over time, they tend to deliver slightly more fuel than registered, leading to "fuel shrink" and complicating inventory reconciliation.
This proprietary service was created specifically to mitigate this loss. Using specially designed provers and a rigorous, proprietary procedure, we calibrate meters with a higher degree of accuracy than traditional methods. This process helps our clients save fuel and significantly reduces the management time spent investigating discrepancies.
OWL Services provides comprehensive environmental consulting services that safeguard your assets and ensure compliance with local, state and federal regulations. Our licensed experts can handle everything from initial due diligence to remediation planning, minimizing your project delays and risk of liability.
Secondary containment testing is a regulatory requirement performed every three years. OWL Verify offers both conventional and cutting-edge methods based on your preference.


Utilizing an aerosol and vacuum, this cutting-edge method tests the containment system for integrity. After the installation of Vapor Stimulator Tubes (VSTs) (3-5 hours downtime), subsequent testing is very quick, requiring only 1 minute of certified test time, with minimal to no downtime. Dri-Sump results in no waste and no water disposal, providing a fast and definitive way to ensure assurance and maximum sales uptime.

DP (Differential Pressure) Leak Testing uses low vacuum pressure to evaluate containment integrity and quickly identify leaks. The process includes sealing off the containment sump and applying vacuum to perform a visual inspection of the entire sump and penetrations to locate any leaks and take pictures. The test takes a few minutes per containment and many minor repairs can be addressed quickly and efficiently while the technician is on site.
This method is third-party verified for accuracy and can be used on any type of containment sump. No water is utilized for this test so there is zero waste to dispose of and no risk of contaminating the fuel in the tanks.
Annual Overfill Verification Testing is a critical safety measure that prevents spills, protects your assets and maintains compliance during product delivery. This test is designed to verify that the overfill prevention device—part of the mandatory UST spill prevention equipment—correctly shuts off the flow of product at 95% capacity of the underground storage tank (UST).
OWL provides a full suite of cathodic protection services to safeguard your underground storage tanks and lines, ensuring regulatory compliance and extending the functional lifespan of your assets.
This essential service manages the regulatory compliance of high-throughput fueling systems, which are subject to annual testing. For sites handling over 100,000 gallons per month, OWL performs the required annual pressure decay test. By proactively tracking your test history and equipping field crews with common replacement parts, your site achieves on-the-spot fixes and passing results quickly, minimizing downtime.
OWL Services provides both the mandatory third-party inspection and immediate corrective action support, streamlining the compliance management process and reducing contractor handoffs.
Let OWL manage the compliance complexities, so you can focus on running your business, knowing that your operations are protected.
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