
Agricultural Fuel Service
At McMahon Oil, we understand that when you’re working sunup to sundown, reliable fuel isn’t optional — it’s essential. We proudly serve Minnesota’s agricultural producers with dependable propane and fuel delivery to keep your operation moving during planting, harvest, and everything in between.

Agricultural Uses for Propane
Operation Types
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Crop Production
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Hay and Forage Production
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Livestock Farming
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Dairy Farming
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Mixed Farming
Propane-Powered Equipment
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Irrigation engines
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Grain dryers
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Generators
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Pickup trucks
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Forklifts
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Building and water heating
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Flame weed control
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Commercial-grade mowers
Propane Delivery Options
Summer Fill: Because propane is usually at its lowest price point during the summer months, due to low demand, we encourage our customers to take advantage of this time to fill their tanks. Our Summer Fill program is designed to top off each customers’ tank (to 80%) before the winter home heating season arrives. Please contact our office between June and August to schedule your Summer Fill.
Scheduled Fill Delivery: We recommend signing up for our Scheduled Fill Delivery program for your convenience and safety. During the winter months, we deliver to each customer enrolled in the program on a scheduled delivery. Please contact our office to enroll in this program.
Will-Call: If you are not part of our Scheduled Fill Delivery program, it is your responsibility to monitor the level of propane in your tank and to order more propane when necessary. McMahon Oil recommends that customers call to schedule a delivery when their tank gauge reads between 10% and 20%.
Contracting: McMahon Oil offers yearly contracts for propane during the winter home heating season. Prior to the winter home heating season, a letter is sent out to each customer with the current propane price and the contract details. If contracted, the price can be locked in for the winter home heating season with a prepay amount of $0.20 per gallon. Also, a pre-buy option (pay in full at the time of the contract) is available at a discounted price.
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Bulk Transport: Are you a large volume user of propane? McMahon Oil can also deliver your propane by the transport load. Call us today for purchasing options and very competitive pricing.
Fuels for your Ag Operation
At McMahon Oil, we provide the fuel your operation depends on—at competitive prices and with delivery options tailored to your needs. Whether you're fueling equipment, dyers, and everything in between, we've got you covered with dependable service and premium-quality products.
Fuel Products Offered:
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#1 and #2 Off-Road Diesel (Dyed)
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#1 and #2 On-Road Diesel (Clear)
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#1 and #2 Fuel Oil (Dyed)
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Gasoline & Premium Gasoline
All our diesel fuels are ULSD and treated with Schaeffer’s Premium Additives, boosting cetane levels, fuel economy, and lubricity while keeping your systems clean and reliable.
We proudly meet all Minnesota biodiesel regulations and prioritize sourcing soy oil from local processors—supporting area farmers while providing top-tier biodiesel blends. Interested in stronger blends? Let’s talk.
Delivery You Can Count On:
From 150 gallons to 7,500-gallon transport loads, we offer:
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Will-call or scheduled delivery
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Fleet fueling & job-site delivery
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On-site tank fills
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Our local team is just a phone call away—no call centers, no runaround. Just honest service from people who understand your business.
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Need to address fuel performance issues or customize your diesel blend? We’ll help you find the right solution. Contact us today and experience the McMahon difference.
Oils & Lubricants
​At McMahon Oil, we carry a trusted selection of commercial-grade oils and lubricants from leading brands like Mobil, Shell, Chevron, Schaeffer’s, and more. No matter what equipment you're running, we’ve got the right products—and the expertise—to keep your operation running smoothly.
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Not sure what you need?
Use the Looble Product Selector to find the ideal Mobil lubricant for your specific industry and application. Still unsure? Contact us and our team will gladly help you choose the right product.
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If we don’t have the exact product you need, we can usually get it within just a few days—and we always offer prompt, no-cost delivery to your business, along with competitive pricing you can count on.​
Farm Incentive Program
Sponsored by the Propane Education & Research Council (PERC), the Propane Farm Incentive Program is a research program that documents the performance of today’s high-efficiency, propane-powered equipment and technologies used on the farm. Farmers who enroll in the program can earn a financial incentive up to $5,000 in exchange for simply reporting the real-world performance data of their equipment. If you haven’t looked at propane-powered equipment yet, you should. Compared with diesel or gasoline equipment, it can cut fuel costs, has fewer harmful emissions, and offers proven refueling options delivered directly to your farm. Additionally, propane irrigation engines are also less expensive than equivalent horsepower diesel engines. Qualifying equipment includes specific models of:
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Irrigation Engines
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Grain Dryers
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Generators
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Barn & Greenhouse Heaters
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Flame Weed Control Units
Please contact McMahon Oil for additional information and requirements on the Farm Incentive program or visit propane.com/agriculture for additional information.
Propane-Powered Ag FAQs
How does the cost of equipment powered by propane compare with equipment powered by other fuels?
Propane-powered equipment is competitively priced with other equipment for products like grain dryers and heaters for animals, greenhouses, or water. Propane irrigation engines typically cost less than comparable diesel engines.
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Are propane-powered engines as durable as diesel engines?
The biggest factors that contribute to long engine life are properly sizing, loading, and maintaining the engine. Regular maintenance intervals and cost per interval differ between propane and diesel, but overall costs are projected to be equal or slightly in favor of propane-powered engines. And with propane units costing less to purchase than comparable horsepower diesel engines, the advantages are clear. A propane engine is certified for a 5,000-hour emission life. Some have reported engine life as high as 15,000 to 20,000 hours for properly sized, operated, and maintained propane-powered engines.
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What horsepower or sizes of propane-powered irrigation engines are available?
Most new propane-powered engines today are based on gaseous fuel prepped gasoline engine blocks. Several models are available from industrial engine suppliers, ranging from 4 cylinder models up to 8 and 10 cylinder models. PERC has partnered to develop several new models in large sizes such as 6.8, 8.0, 8.8, 9.1, and 10.3-liters of displacement, while there are propane-powered engines available up to a 22-liter engine and roughly 300 horsepower. There is a broad spectrum of engine sizes available to meet an operation’s needs.
How much propane does a propane-powered engine consume?
Less than you’d think. New propane-powered engines are more efficient than those produced decades ago. PERC has conducted multiple studies comparing propane engines side by side with diesel counterparts to monitor fuel consumption for conducting similar work. The research found that propane outperformed diesel on a per-dollar basis.
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What are the advantages of using propane?
First and foremost, propane is a cost-effective solution for farming operations. This is especially true in the summer, when propane typically reaches its lowest price per gallon and diesel is at its highest. Propane is also more environmentally friendly than other fuels. Engines powered by propane emit fewer greenhouse gases than gasoline or diesel engines. As an American-made fuel, propane supplies are readily available, making it a reliable fuel for farming operations. And with regular maintenance and proper use, propane-powered equipment can last for decades. The storability of propane adds to its reliability. Properly stored propane will last indefinitely and not deteriorate over time or cause potential waste and pollution like other fuels.
Are propane storage tanks safe?
A propane tank is 20 times as puncture-resistant as a typical gasoline, methanol, or ethanol tank. And when properly maintained, they can last up to 40 years or more.
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Ready for something new?
We’d be honored to earn your business and show you firsthand what sets McMahon Oil apart. Whether you're looking for reliable fuel delivery, fair pricing, or just a company that genuinely cares, we’re here to help.
Reach out today—we’d love the opportunity to serve you and prove why so many local families and businesses trust us to keep them fueled.