Commercial Fuel Delivery & Fleet Fueling in Northern Illinois & Southern Wisconsin
Trusted for decades. Chosen for reliability. Loved for service.
Your local, full-service commercial fuel delivery partner in Northern Illinois and Southern Wisconsin. Olson Oil delivers reliable on-site fueling, emergency fuel and exceptional service when you need it most.
Our Story
A legacy of dependable fuel service.
Olson Oil began after World War II with one truck and a commitment to keeping local communities running with home heating oil. What started as a small operation has grown into a trusted partner for fleets, construction crews, municipalities, and industries across Northern Illinois and Southern Wisconsin.
That same work ethic drives us today. While our capabilities have expanded, our values have not: show up, do the job right, and stand behind our customers. We continue to invest in safety, equipment, and technology to meet the evolving needs of modern commercial operations—without losing the personal service that sets us apart.
Our Commitment
Fueling your business, powering your community.
When you partner with Olson Oil, you’re working with a family that has invested generations into the communities we serve. We understand what’s at stake when equipment runs dry, when a storm knocks out power, or when operations can’t stop.
We’ve earned trust one delivery at a time and remain committed to reliable fuel solutions, exceptional service, and dependable supply.
What we deliver
Commercial fuel solutions built for your business.
Fleet fueling
On-site tank & generator fueling
Fuel testing & optimization
Tank rental, installation & maintenance
Tank monitoring
Emergency & seasonal response
Why Businesses Choose Olson Oil
Trust isn’t promised—it’s earned on every delivery.
Premium fuels, lubricants, and DEF for commercial operations
Safe, on-time commercial fuel delivery you can depend on
Family-owned and trusted across generations
24/7 customer support with emergency fuel response
Union-trained, safety-certified drivers and strict compliance standards
Local expertise serving Northern Illinois & Southern Wisconsin
We’re confident that when you enroll in our fleet fueling program, your favorite part will be the incredible customer service.
Industries we serve
Each industry faces unique fueling challenges.
We deliver solutions built for uptime, safety, and reliability. When other fuel suppliers make promises, we deliver. For decades, businesses have depended on us.
Fleets & Transportation
Commercial fleet fueling and on-site fuel management solutions that reduce downtime, control costs and keep vehicles road-ready.
Municipalities & Public Works
Reliable commercial fuel delivery for municipalities and public works operations, with compliant reporting, accountability and dependable supply
Construction & Heavy Equipment
Jobsite fuel delivery and heavy equipment furling that keeps construction projects moving - regardless of conditions or location.
Marina Operations
Commercial marina fuel delivery and marine fueling services supporting smooth operations from spring launch through winter storage.
Data Centers
Generator refueling and emergency fuel services for data centers, ensuring uninterrupted power during outages and critical events.
Snow Removal
Emergency and scheduled fuel delivery for commercial snow removal fleets that can’t afford downtime during winter weather events.
What our clients say
Our service speaks for itself.
We’ve always appreciated Olson’s responsiveness and commitment to getting the job done right.
Steve Kugel
Baxter Healthcare Corporation
When we need fuel for our generators and motors, we can depend on Olson Service Co. to deliver and respond promptly with ease.
Procurement Specialist
Abbott
Olson Oil has been consistently reliable, responsive and easy to work with! Great customer service!
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Village of Linderhurst