Competitive Pricing. Reliable Customer Service.

Top-Quality Biodiesel Supplier

Bulk Fleet And Generator Fuel Distributor

  • Chicago’s Leading Diesel Fuel Delivery

  • Cost Effective & Reliable Onsite Fueling

  • Save On Labor, Miles & Fuel

  • Top Quality Customer Service

  • Around The Clock Fueling

  • Emergency Fueling

We Deliver Fuel To You!

What Service(s) Are You Interested In?

Client Testimonials

What Our Clients Have to Say

"We just wanted to drop you a note of thanks, and extreme praise. On Wednesday evening we experienced a power outage that started our stand-by genset, but went unreported. Then the genset ran out of fuel. When we came in the next morning we weren’t able to restore normal power, and with no fuel In our tank, we called your office..."

Gregg Cupp, Globetrotters International

"Osco Oil provides fuel for our emergency power generator and we rely on them heavily, especially during times of extended unplanned power outages. They have been extremely responsive to all our requests, night or day, and can always be relied on to keep our operation up and running. Their personnel are part of a family that really provide outstanding service."

Ed Walsh, Johnstone Supply

Other Fueling Services We Offer

On-Site Fueling

Fleet Fueling

Bulk Fueling

Generator Fueling

Direct To Locomotive

Special Event Fueling

Fuel Dispensing Equipment

Keep Fill Programs

One-time fueling or ongoing diesel fuel delivery service...

01. Complete the form and a fuel expert will reach out to you asap.

02. From there we can either come out and fuel the one job or set up a recurring order.

03. Our service is designed around the client. We’re there whenever you need us.

About OSCO Oil

We Are Chicago’s Leading Onsite Diesel Delivery Servicing Fleets & Generators. We Offer Reliable Winter Treated Fuel At Competitive Pricing. We are so reliable that in some cases, even our competitors have asked us to fulfill orders that they were unable to complete for their own customers.

Fueling local business for more than 90 years.

Osco has had a rich history of serving Chicagoland with petroleum storage and delivery services since 1932.

Since the very beginning when the company was originally known as Oil Storage Company of Chicago, and before being shortened to OSCO, the company has been dedicated to fulfilling the needs of local business. For instance during World War II, we stored and delivered over 80% of the aviation gasoline consumed at Midway Airport. As the war progressed, the volume of gasoline consumed escalated, increasing ten-fold; and as demand increased, so did the demands on the company. Shortages of workforce, rationing and the military draft made it almost impossible to meet these needs, but no matter how difficult the challenge, the company found ways to get the job done.

This same attitude carried over to the 1950’s and 1960’s as construction in Chicago boomed and strained the ability to get fuel to construction sites. But OSCO’s trucks traveled wherever the fuel was needed. It did not matter whether it was 100 feet straight down the base of a new skyscraper or miles out in remote areas where new housing developments where literally popping up overnight; OSCO was there to help meet the demand. We have delivered virtually everywhere fuel is needed, from the excavation of a reservoir, to a mere twenty gallons, to a small machine working on a hospital addition, and even to the middle of O’Hare Field during the blizzard of 2011 in order to keep the plows moving. It was our motto then, and it’s our motto now: Any amount of fuel, wherever it’s needed, we’ll be there!

Even during the 1970’s when a shortage of oil and gas hit the country, we stepped up to meet the challenge. The growing demand, shortage and allocations of fuel made for a very difficult time for business. As major oil companies were allocating fuel and denying it to their customers, OSCO was fulfilling their customers’ needs. This was no small accomplishment at that time as many oil companies where gouging their customers, but OSCO stood firm in our conviction and commitments to our clients. As the Federal Government fixed prices and began audits that forced many oil companies to refund customers, OSCO was one of the few distributors that was found to be in perfect compliance. And we are proud to report that these same ethics and principles drive our organization today.

Talk To An Industry-Leading Expert Today​

Beyond Gasoline And Diesel Fuel, OSCO Delivers Peace Of Mind