
Diesel fuel prices are a concern for many, especially those with diesel vehicles, large commercial vehicles, or fleets. While diesel engines are more fuel-efficient than gasoline engines, diesel fuel prices are subject to fluctuations due to supply and demand and other economic factors. As of September 2023, Mississippi had the cheapest diesel fuel in the country, with prices under $4 per gallon, followed by Texas, Missouri, and Oklahoma.
| Characteristics | Values |
|---|---|
| Date | November 2022 |
| States with the highest average diesel fuel prices | California ($6.28), Pennsylvania ($6.16), Vermont ($6.16), Connecticut ($6.12), Hawaii ($6.07), Rhode Island ($6.03), Maine ($6.00), New York ($5.98), New Jersey ($5.97), and Delaware ($5.95) |
| States with the lowest diesel fuel prices | Texas ($4.69), Louisiana ($4.84), Oklahoma ($4.85), Mississippi ($4.86), Arkansas ($4.90), Kansas ($4.94), New Mexico ($4.95), Georgia ($4.97), Missouri ($4.99), and Alabama ($5.00) |
| Average price of diesel per gallon in the U.S. | $3.55 |
| Tools to find the lowest diesel prices | Fuel Finder inside the OTR Mobile App, Fuel price tracking apps and websites |
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What You'll Learn

States with the cheapest diesel fuel
Fuel prices have a significant impact on our daily lives, and this is especially true for those in the trucking industry. With diesel fuel prices seemingly rising every week, it's essential to keep an eye on which states offer the cheapest rates. As of April 2025, Oklahoma boasts the cheapest average diesel price at $3.138 per gallon. Texas follows closely behind, with an average price of $3.138.
For truckers looking to save on fuel costs, EZ Freight offers a diesel discount program that can save users 37 cents per gallon. While altering your route to pass through states with cheaper fuel may not always be feasible, enrolling in such programs can help mitigate the financial burden of rising diesel prices.
It's worth noting that diesel prices fluctuate constantly due to factors such as supply and demand, so it's advisable to check for the most recent updates before planning your fuel purchases.
If you're curious about the regions in the US that tend to have the lowest diesel prices, stay tuned, as we will be providing insights into this in the near future.
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Fuel price tracking apps
Fuel prices are constantly fluctuating, but there are apps that can help you find the cheapest diesel fuel in your country. These apps also offer additional features such as tracking mileage and fuel consumption. Here are some of the most popular fuel price tracking apps:
GasBuddy
GasBuddy is a popular app with over 100 million downloads that helps users find the cheapest gas prices in North America. The app provides information on gas prices, as well as discounts and deals, allowing users to save money on every fill-up. GasBuddy also offers a rewards program where users can earn points by snapping receipts, playing games, and finding deals. These points can be redeemed for digital gift cards from top retailers. The app also allows users to track their fuel usage and stay informed about vehicle recalls.
Fuelio
Fuelio is a simple and easy-to-use app available for Android and iOS devices. It allows users to track their mileage, fuel consumption, and fuel costs. The app also provides information about gas stations and gas prices, and allows users to customize the app's appearance. Fuelio syncs automatically to Google Drive or Dropbox, making it convenient for backing up data. The app has received positive reviews for its simplicity, effectiveness, and useful features.
Other Apps
There are also other fuel price tracking apps available, such as Fuelio Pro and GasGuru, which offer similar features to GasBuddy and Fuelio. These apps can help users find the best gas prices, track fuel consumption, and save money on their fuel purchases.
By using these fuel price tracking apps, drivers can make informed decisions about where to fill up, plan their road trips, and stick to their budgets. These apps empower users by providing them with the information they need to save money and optimize their fuel purchases.
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Discount diesel programs
There are several factors to consider when choosing a diesel discount program. Firstly, consider your fleet size and needs. Smaller fleets may benefit from programs with lower fees and simpler features, while larger fleets may require advanced features like real-time tracking and reporting. Secondly, compare pricing and fees, including monthly fees, transaction fees, and any other charges. Thirdly, look for additional benefits such as maintenance discounts, roadside assistance, or rewards programs. Fourthly, ensure that the program's network covers the areas where your drivers typically fuel up. Lastly, carefully read the terms and conditions for any restrictions or limitations on the discounts and rewards.
- Pilot Fuel Discount Program: This program offers high savings and exclusive perks at Pilot and Flying J travel centers, with over 750 locations across the U.S. and Canada. It provides a mobile app for real-time fuel pricing and route planning, dedicated truck lanes, and a loyalty rewards program.
- TSD Open Roads Fuel Discount Program: Specifically designed for the trucking industry, this program offers discounts at thousands of fuel locations across North America. It features a transparent fee structure, detailed reporting, and an intuitive mobile app for easy expense management and tracking savings.
- Open Roads: This free program provides diesel discounts at commercial truck lanes. You can use their mobile app to view in-network locations and real-time prices. After signing up, you'll receive an EFS card in the mail to start saving at the pump.
By enrolling in these discount diesel programs, trucking companies and fleet managers can optimize their fuel costs and take advantage of the additional benefits offered.
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Strategies for locating the best diesel price
As diesel fuel is one of the largest operational expenses for truckers, finding the lowest diesel prices is essential to maintaining profitability. Rising costs can quickly eat into earnings, making it crucial to be proactive about where and when you refuel.
- Utilise tools and apps: There are several tools and apps, such as GasBuddy and OTR Solutions, that can help you locate the cheapest diesel fuel. These apps often provide real-time fuel price information and allow you to filter and sort fuel stations by price, helping you identify the most cost-effective options.
- Plan your routes: If you know certain regions or states consistently offer cheaper diesel, plan your routes to take advantage of those lower prices. This strategy can result in significant savings, especially on long-haul trips where fuel costs can accumulate.
- Purchase diesel in bulk: If you have the storage capacity, consider buying diesel in bulk when prices are low. This strategy locks in the lower diesel prices and reduces your overall fuel expenses in the long term.
- Consider fuel taxes: Keep in mind that certain states impose higher fuel taxes, which can drive up diesel prices. Whenever possible, avoid refuelling in these areas and opt for states with lower fuel taxes and diesel prices to maximise your savings.
- Use discount cards: Some apps, like GasBuddy, offer discount cards that provide additional savings on fuel purchases. The GasBuddy card, for example, can save you up to 25 cents on every gallon of fuel.
- Monitor price trends: Stay informed about price trends and fluctuations in diesel prices. Factors like crude oil prices, supply and demand, and global events can influence diesel prices, so keeping track of these trends can help you make more informed refuelling decisions.
By implementing these strategies and staying proactive about your fuel strategy, you can effectively manage your fuel costs and optimise your profitability.
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States with the highest diesel fuel prices
As of November 2022, these were the states with the highest diesel fuel prices in the US:
- California ($6.28)
- Pennsylvania ($6.16)
- Vermont ($6.16)
- Connecticut ($6.12)
- Hawaii ($6.07)
- Rhode Island ($6.03)
- Maine ($6.00)
- New York ($5.98)
- New Jersey ($5.97)
- Delaware ($5.95)
The American Automobile Association (AAA) tracks the average gas prices by state. In October 2022, only California, Hawaii, and Pennsylvania were among the top ten states with the highest diesel fuel prices.
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Frequently asked questions
Texas had the lowest diesel fuel price in 2025, at $4.69 per gallon.
In addition to Texas, Louisiana, Oklahoma, Mississippi, Arkansas, Kansas, New Mexico, Georgia, Missouri, and Alabama were among the states with the lowest diesel fuel prices in 2025.
Yes, there are several tools available to help truckers and drivers manage their fuel costs effectively. For example, the Fuel Finder feature in the OTR Mobile App allows users to locate nearby fuel stations offering the lowest diesel prices. Additionally, fuel price tracking apps and websites can provide real-time updates on diesel fuel prices in specific areas.
Diesel fuel prices vary across states due to factors such as low state taxes, proximity to oil refineries, and competitive fuel markets. States with low fuel taxes, such as Texas, Missouri, and South Carolina, often offer more affordable diesel fuel prices.
Diesel prices can fluctuate daily and weekly due to various factors, including crude oil prices, supply and demand, and global events. Therefore, it is essential to monitor diesel fuel prices regularly and take advantage of discount diesel programs to optimize fuel costs.











































