Over 100 Years of Customer Service and Innovation

Driving your business forward through better fuel management

If you’re like most companies that rely on equipment and vehicles to move forward, fuel is your second biggest expense. At Jacobus Energy, we like to think fuel is your second biggest savings opportunity. It’s this mindset that has helped us deliver some of the industry’s most progressive fuel management solutions to America’s fleets, facilities, emergency responders and businesses for more than 100 years.

As a leading fuel services provider, Jacobus Energy offers comprehensive fueling programs designed to improve efficiencies, increase productivity and make businesses more competitive. We do all this by providing the latest in fuel management service and technology—an approach that gives you the security, accuracy, flexibility and reliability you need to better manage your entire fueling operation.

man refueling vehicle

Our Services

Mobile Refueling

Emergency Response

Wholesale Fuel

Risk Management

Seasonally Blended

Diesel Exhaust

Jacobus Energy
Customer Portal

Tank Monitor and
App Program



DEF Delivery Meaning & How it Works

April 25, 2023|

​​As businesses continue to search for more successful and cost-effective ways to manage their fueling operations, diesel exhaust fluid (DEF) delivery has become a popular option. DEF is a non-hazardous solution that is required by vehicles with selective catalytic reduction (SCR) systems to reduce harmful emissions. In this blog, we will discuss the meaning of DEF delivery and how it works, as well as the benefits of using a professional company for DEF delivery. What does DEF Delivery Mean? DEF delivery refers to the transportation and delivery of diesel exhaust fluid to businesses that require it to operate their SCR-equipped vehicles. DEF is a solution made of urea and deionized water that is injected into the exhaust stream of diesel engines to reduce emissions. The use of DEF is required by the Environmental Protection Agency (EPA) to meet emissions standards, making it an essential component for businesses that operate diesel-powered vehicles. How does DEF Delivery Work? DEF delivery is a simple process that involves the transportation of DEF from the supplier to the business location. However, it involves several steps best handled by fuel delivery experts.  The first step is the sourcing and production of DEF. DEF is made up of 32.5% urea and 67.5% deionized water, and it must meet the ISO 22241 standard to ensure its quality and consistency. DEF is typically produced in large quantities and stored in bulk tanks at production facilities. Once the DEF is produced and stored in bulk tanks, it is ready for delivery to businesses that require it to operate their SCR-equipped vehicles. When a business orders DEF delivery, a specialized truck equipped with a pump and hose is dispatched to transport the DEF to the business location. The DEF is transported in bulk, typically in tanks ranging from 500 to 4,000 gallons, depending on the business's needs. Upon arrival at the business location, the DEF delivery truck will park near the DEF storage tank, which is usually located near the diesel fuel storage tanks. The pump and hose on the truck will be used to transfer the DEF from the truck's tank to the business's storage tank. The transfer process typically takes only a few minutes, and the driver will monitor the flow rate and volume to ensure accuracy. It's essential to note that DEF is sensitive to temperature and must be stored properly to maintain its quality. The storage tank for DEF must be made of materials that won't contaminate the DEF, such as high-density polyethylene (HDPE) or stainless steel. It's also important to store DEF in a location that is protected from direct sunlight, heat sources, and freezing temperatures. DEF has a shelf life of about one year when stored at temperatures between 12°F and 86°F, so proper storage is critical to ensure that the DEF remains usable and effective. In addition to bulk delivery, businesses can also opt for smaller containers of DEF, such as 2.5-gallon jugs or 55-gallon drums, which are typically used for smaller applications

What is Included in a Standard Mobile Fueling Service

May 8, 2023|

Mobile fueling is an innovative solution to what many industries find to be an ongoing problem: Having to stop working to fuel up. At Jacobus Energy, we provide a mobile fueling service that caters to a variety of businesses and seeks to keep them working productively without interruption. Our service offers an easy way for companies to refuel their fleet vehicles and machinery, saving valuable time and resources. Who We Deliver To At Jacobus Energy, our mobile fuel services are tailored to a wide range of industries, including food and beverage delivery companies, long-haul trucking companies, construction companies, school bus organizations, waste management facilities, and more. We understand that these industries have unique fueling needs, and we are committed to providing them with the right fueling solutions. Our services include gasoline, DEF, on and off-road types of diesel, and other blended diesel fuels. Mobile Fueling Services Our mobile fueling services are designed to make fueling as easy and efficient as possible. This service is meant to mitigate financial losses due to time spent on inefficient refueling. We bring fuel to your site so you and your employees do not have to waste any of your valuable time on refueling. We refill each unit, whether that is a truck itself or a storage container, to ensure that you always have enough fuel to get the job done. Our team of experienced drivers ensures that your vehicles and machinery are fueled up quickly and efficiently, so your team can focus on the work at hand.  Tracking System At Jacobus Energy, we understand the importance of having enough fuel to keep your fleet running. The crucial role that fuel plays in your operations is why we use a state-of-the-art tracking system that allows us to automate our deliveries and monitor your fuel levels at all times. This system ensures that you and your fleet are never left with low fuel levels. Our tracking system also helps us to plan our deliveries, ensuring that you always have enough fuel to get the job done. Customer Portal We believe in providing our customers with convenient access to their fueling information. We do so through a customer portal that gives our customers direct access to their fueling information at all times. With this portal, you can pay bills, make adjustments to service, and view your fueling history. Our customer portal makes managing your fueling operation easier than ever before. Benefits of Mobile Fueling Service Using our mobile fueling service has many benefits. Firstly, it eliminates the need to stop working to refuel, which saves valuable time and resources. Secondly, our service is more convenient than traditional fueling methods, as we come to your site to deliver fuel. Finally, our tracking system and customer portal make managing your fueling operation easier and more efficient than ever before. Let Jacobus Energy Keep Your Fuel Levels Up! At Jacobus Energy, we provide a comprehensive mobile fueling service that caters to a wide range of industries. Our service is

Who Provides Diesel Fuel Delivery

May 16, 2023|

Do you find yourself in need of diesel fuel but do not have the time or resources to go to the gas station? Have you considered diesel fuel delivery? If so, you may have wondered, “Who provides diesel fuel deliver?” Jacobus Energy does! With almost a century of experience, we provide comprehensive fueling programs designed to make businesses more competitive, efficient, and productive. Our diesel delivery service is a crucial part of that program. What is Diesel Fuel & What is it Used For? Diesel fuel is a petroleum-based fuel that is used in diesel engines. It is commonly used in large vehicles such as trucks, buses, and construction equipment. Diesel fuel provides better fuel efficiency and produces less carbon dioxide than gasoline. We at Jacobus Energy offer various types of diesel fuel to serve the diverse needs of our customers. Our fuel delivery options include on-road diesel, off-road diesel, seasonal blended diesel fuel, and more. How We Approach Our Fuel Delivery Our mobile diesel fuel delivery service allows us to deliver fuel directly to your trucks or tanks on-site. This service grants you and your employees the ability to focus on your business operations without needing to worry about fuel procurement or time-consuming trips to the gas station. Our experienced and reliable team will ensure that your fleet always has the fuel it needs to operate smoothly. Diesel Fuel Delivery Made Easy Time is, of course, a precious commodity, especially for businesses. The process of driving to a gas station, filling up a truck or tank, and returning to work can take valuable time away from more critical tasks. With Jacobus Energy's diesel fuel delivery service, we make the process of refueling your fleet as easy as possible. Our fuel delivery trucks come equipped with state-of-the-art technology to ensure that the fuel delivery process is safe, secure, and efficient. We make it easy to schedule deliveries around your fleet's schedule, whether that means overnight, on weekends, or during holidays. Our fuel delivery service is also flexible and scalable, which means that we can accommodate the changing needs of your business. Whether you have a large or small fleet, we can tailor our diesel fuel delivery service to meet your unique needs. Emergency Diesel Fuel Delivery In the event of a disaster, having access to fuel is essential. In addition to our regular and ongoing fuel delivery options, Jacobus Energy provides emergency fuel delivery service to ensure that emergency relief vehicles such as ambulances, police cars, and fire trucks have the fuel they need to operate. Our emergency fuel delivery is available 24/7, and we work with disaster relief agencies to help mitigate the effects of natural disasters. Winter Additive Program Unfortunately, diesel fuel can become ineffective and even unusable in freezing temperatures, which can be a significant problem during winter months. Our Winter Additive Program ensures that your fuel remains viable through the winter. Our team will combine an additive into your diesel fuel as well as blend


“A quick note expressing our gratitude for yesterday’s prompt delivery. Thank you! Despite current world turmoil re: oil supply/demand, it’s reassuring knowing Jacobus Energy remains proactive. Kudos!”

John W, Milwaukee HHO Customer

“Leroy – thank you very much for your outstanding customer service and very quick responses regarding our operations. Every time we have something come up you are right on it and delivering. It is very hard to find this kind of customer service these days. Thanks!”

John Dean, Coca Cola

“Just wanted to shoutout Kristin and Samantha for all of their help on Friday to make sure 4th of July weekend went smoothly! :) Ya’ll rock!!”

Matthew, Mansfield Energy

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