diesel fuel delivery service



diesel fuel delivery service




Save money, manage fuel costs, and improve business operations with our fuel delivery & refueling services.

 City Oil Co. Inc. Specializes in on-site construction fueling, fleet fueling, site tanks, and routine delivery of on road & off road diesel fuel, gasoline, commercial heating oil and more. Our job as diesel fuel suppliers is to keep your jobs going. Our prompt and specialized services to the construction, transportation, farming, manufacturing, and many other industries, small and large, residential and commercial, have ensured the quality trademark of City Oil Co. Inc. since 1990. Contact us to get a free quote for diesel fuel delivery. We deliver 24/7, 365 days a year, anywhere and anytime.

Routine Fuel Delivery

Whether moving freight or working with heavy equipment and machinery, we can save you time and money with our routine fuel and automatic diesel fuel delivery service . Offering multiple fuel supply solutions on an automatic schedule, City Oil's routine delivery service is the most dependable, on time service in the industry.
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24 Hr Emergency fueling

We provide fuel service 24 hours a day to all types of equipment and industries. Our diesel delivery CT team is always prepared and available 24/7. No matter what time of day or night, our team will be there to keep your business running; respond to emergencies and natural disasters.
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Generator Refueling

Our generator refueling service ensures that you always have the fuel you need, so you can keep your business running smoothly. With our flexible schedules and 24 hour onsite fuel delivery services we can prepare a generator refueling strategy to suit your needs with scheduled deliveries to keep your sites and buildings powered.
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Construction Fueling

We provide reliable and affordable construction site fuel delivery services. Our tank trucks deliver onsite fuel directly to your equipment, machinery, and vehicles, so you can keep the job moving. Our on-site refueling services are also available 24 hours a day, so you can keep your job site running around the clock.
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Fuel Tank Rentals & Service

We provide above-ground fuel tank rentals and pumping equipment for our customer's sites and yards. Tanks range from 275 to 3000 gallons. Standard 110-volt or 12-volt pumps are available. Whether you need a diesel tank rental for your home, business, or farm, we have the perfect solution for you.
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Fleet Fueling

Save time and money when you partner with us for dependable fleet fueling services. City Oil provides onsite fuel delivery directly from our tank trucks to your tractor trailers, reefer units, and other vehicles or truck fleets, to provide maximum productivity for your time and money.
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DEF Delivery

City Oil has all of your DEF Delivery needs covered. We supply high-quality diesel exhaust fluid (DEF) in several different quantities for bulk purchases, and we'll deliver it anywhere you need it -- even your job site. Contact us today to learn more about our DEF delivery services.
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Gasoline Delivery

Here at City Oil, we provide only the highest quality gasoline for your needs. We provide all grades of gasoline; 87 Octane, 89 Octane, and 93 Octane. With over 20 years of experience buying and selling fuel, we offer the most cost-effective fueling programs in the industry.
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At CITY OIL CO. INC. We Take The Headache Out of Getting Fuel Where & When You Need It..

Want to see how much you can save in Labor & Fuel Costs with City Oil?

Avoid downtime! Get Fuel and DEF Delivered to Your Trucks and Job-Sites.

As a business, you know that time is money. You can’t afford to have your construction equipment sitting idle while you wait for your diesel fuel delivery. That’s why we guarantee quick and efficient service. We’ll fill up your trucks, bulk tanks, generators, and job-site construction equipment so you can get back to work. We understand the importance of jobsite safety so our team is qualified and experienced. You can rest assured that your fuel will be delivered on time and without incident. Learn more about our products and services below:

Why Choose City Oil

City Oil is a family owned and operated business, that has been providing fuel services, to the state of Connecticut, Western Massachusetts, and surrounding areas since 1990. With our competitive pricing and dedicated team of diesel fuel delivery drivers, dispatchers and account managers, we take pride in providing quality products and reliable services.

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One Source

Offering a wide range of fuel options, we are your one source for all your fueling needs. Offering diesel fuel, gasoline, heating oil, kerosene, DEF and more at the most competitive prices.

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Reliable Fuel Supply

Our unrestricted access to a network of fuel supply locations throughout the state of Connecticut ensures that you receive the fuel you need when you need it, without delays or disruptions.

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24 Hour Delivery

Call, text or email - regardless of how you contact us, we will respond ASAP and deliver your fuel. We have fuel trucks on the road 24 hours a day, so we can accommodate emergency diesel fuel delivery service requests.

diesel fuel supplier

Equipment and Personnel

At City Oil Co, we pride ourselves on having a fleet of newer well-maintained trucks and equipment, along with exceptional delivery drivers who provide dedicated support when you need it.

Schedule Your fuel delivery Now

Request fuel in 5 minutes. It’s simple and easy to do.


“We know fuel cost is important to you. With over twenty years of experience in buying and selling fuel, we know how to provide the most cost effective fueling programs in the industry.”

City Oil delivers fuel directly to your job site or truck fleet so that your company stays fueled up and on time. We deliver premium-quality diesel fuel 24/7, following the highest standards of safety from our expert-trained team. City Oil Co. was founded in 1990. Since the beginning, our goal has been to be #1 in the fuel industry. Being family-owned and operated, pride is taken in making sure you get the best products and services.

For over twenty years City Oil Co. Inc. has provided fuel to the construction, transportation, marine, manufacturing, and other industries throughout the state of Connecticut, and Springfield/ Western Massachusetts Areas. By providing a variety of fuels (on road and off road diesel fuel, gasoline, heating oil, kerosene, and additives), and specialized fueling services (on site construction fueling, on site fleet fueling, fuel tank service, job site fuel delivery, and routine deliveries), City Oil Co. Inc. can meet all your fuel needs.

“We and take the extra steps to be there when you need us.”

Reliable Job-Site Fueling and the most cost effective fueling programs in the industry.

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Fuel Delivery 24/7 365 Days
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Fast, helpful support for customers

When you work with City Oil, you can be confident that you’re getting the most reliable quality fuel and quality diesel fuel delivery service in the industry. We have over 30 years of experience, and our off road diesel Connecticut team is available 24/7 to make sure you get the fuel you need, when you need it. We use experienced drivers and innovative solutions to ensure on-time diesel fuel delivery service, even in challenging conditions. Because customer satisfaction is our main concern, we take the extra steps to be there when you need us. If you’re looking for a partner you can rely on, City Oil is ready to deliver the quality service and solutions you deserve.

Our Happy Clients!

Mario Warszawik
Mario Warszawik
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City oil saved me almost 30 cents per gallon on heating oil compared to local heating oil companies. Very thorough , and they definitely know what they are doing. Highly recommend.
 Thomas Lawlor
Thomas Lawlor
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City oil has been providing me with the quickest deliveries and the best price on fuel. No matter what time I call I always receive a delivery first thing the next morning to keep my machines running.
James Doyle
James Doyle
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I have been using city oil for close to three years now for all of our equipment and trucks Fueling needs. They are always quick with deliveries especially if we run heavy one week and are low on fuel they always have a truck there if I call and let the owners know. Being a smaller outfit it truly speaks volume and customer service knowing that they are willing to help guys like me to stay moving forward! Thankyou Sal !
Rhonda Prucker
Rhonda Prucker
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City Oil has been a wonderful company to work with! Deliveries for our company are prompt and they have very competitive prices. We have been working with them for quite some time. I would highly recommend City Oil!!!
Chez Pace
Chez Pace
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Have been using City Oil for our business fuel needs for many years and have nothing but great things to say. City Oil exemplifies professionalism, keeps to their schedule and always willing to help in a pinch. I highly recommend City Oil for your fueling needs!
Nick Procko
Nick Procko
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The always have the best pricing and are willing to go the extra mile. I ran out of home heating oil and they came immediately to help out. Highly recommend!!!


We know fuel cost is important to you. With over 20 years of experience in buying and selling fuel, we know how to provide the most cost-effective fueling programs in the industry. To ensure that there are no problems in your operations, we only supply the highest quality fuel and additives

On-Road, and Off Road Diesel Fuel is available. Ultra Low Sulfur Diesel is now the standard for diesel powered vehicles and equipment nationwide.

We provide all grades of gasoline; 87 Octane, 89 Octane, and 93 Octane.

Our commercial heating oil division provides routine deliveries, and services. Ask about our automatic ‘diesel fuel delivery service near me’ program. 

Clear and dyed kerosene is available.

Special condition additives, and blended fuels are available. We blend our diesel fuel during exceptionally cold weather to avoid any problems and freeze ups.

City Oil Offers high quality DEF delivered directly from our specialized pumping system to your fleet vehicles, guaranteed to be free from impurities, keeping your vehicle’s safe from harmful contaminants. Choosing us as your DEF supplier keeps your trucks running at full capacity.

Frequently Asked Questions

City Oil Co. Inc. has been the trusted oil company providing fuel services, to the state of Connecticut, Western Massachusetts, and surrounding areas for over 25 Years.

We provide products and services for every job, and every industry that has a need. Trucking and Transportation, Farming, Landscaping, Manufacturing, Marine, Aviation, Waste Disposal, All types of Construction; Road work, Excavation, Demolition, Grading, Blasting, Drilling, Concrete, Steel, Asphalt, Masonry, and more. Knowing that our customers can’t work with out their fuel is why we strive for prompt, quality service and delivery.

Our local heating oil division has ensured customers the same quality commercial oil delivery service for over 25 years. Keeping our customers comfortable, and worry free.

City Oil operates a CT wide diesel fuel services network. We can facilitate deliveries to the state of Connecticut, Western Massachusetts, and surrounding areas. If you need diesel fuel delivery near me services, we can get it to you. See our locations here!

At City Oil Co, we understand that one of your biggest concerns is getting the right quantity of fuel every time you order. That’s why we take care to ensure that all of our fuel delivery trucks Connecticut are equipped with approved weights and measures meters. Our meters are inspected yearly by the state of CT to ensure accuracy. Also, all of our trucks have technology that captures the quantity pumped digitally. GPS tracking ensures that you’ll always know exactly how much fuel you’re getting. So rest assured, when you order from City Oil, you’re getting the highest quality fuel delivery Connecticut has to offer and the precise quantity of fuel you need.

Yes, we will work with you to provide fuel on a schedule as long as you need. We can even deliver fuel multiple times per day if needed. It doesn’t matter if you need diesel fuel once, short-term, or long-term, we’ll design a schedule that works for you.

Yes, City Oil specializes in generator fueling. We have experience delivering fuel to data center generators, emergency generators, construction generators, event generators, and large building backup generators. No matter the size of the generator, we will ensure that it is properly fueled so that it can continue to operate smoothly. We understand the importance of having a reliable generator, and we are dedicated to providing the best possible Connecticut diesel delivery service. When you choose City Oil for your generator fueling needs, you can rest assured that you are in good hands.

City Oil accepts all major credit cards, checks and ACH payments. You can contact us here if you have any questions!

City Oil is committed to providing our customers with the highest level of service possible. Our bulk diesel fuel delivery CT routes operate 24/7/365 days per year, and our agents are on call 24 hours a day to assist in emergency situations. We schedule our deliveries around your schedule. We understand that your business needs are always changing, and we are dedicated to meeting your needs in a timely and efficient manner. Contact us today to learn more about how we can help you keep your business running smoothly. 

We deliver On-Road Diesel, Gasoline, Off-Road Diesel (also known as Dyed or Farm Diesel). Modern diesels require Diesel Exhaust Fluid or DEF. City Oil provides a wide range of DEF solutions including delivery directly into your tank, pallets of jugs, 55-gallon drums, and bulk fuel totes.

We are a full-service fuel delivery company servicing the Connecticut and Springfield/Western Massachusetts areas. We also have a wide range of direct-to-equipment fueling options for all types of vehicles and equipment. In addition, we also offer onsite tank filling services. We have a long history of providing quality fuel delivery services to our customers and we are proud to be the largest fuel delivery company in the region. If you are in need of reliable and cost-effective diesel fuel delivery in Connecticut, we are the company to call. We look forward to serving you!

City Oil has been in the business of buying and selling fuel for over 20 years. In that time, we have honed our skills and developed relationships with Connecticut gasoline suppliers that allow us to provide the most cost-effective fueling programs in the industry. Whether you need diesel fuel for your fleet of trucks or gasoline for your company cars, we can tailor a program to fit your needs and help you save money. Contact us today for a free quote.

Don’t see your question here? Give us a call and talk with a City Oil fuel delivery expert!

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City Oil Co. Inc. is proud to service the whole state of Connecticut, along with the Springfield and Western Massachusetts areas. Including Hartford County, Fairfield County, Litchfield County, Middlesex County, New Haven County, New London County, Tolland County, Windham County, Springfield and Western Massachusetts. Communities We Service: Andover, Ansonia, Ashford, Avon, Barkhamsted, Beacon Falls, Berlin, Bethany, Bethel, Bethlehem, Bloomfield, Bolton, Branford, Bridgeport, Bridgewater, Bristol, Brookfield, Brooklyn, Burlington, Canaan, Canton, Cheshire, Chester, Clinton, Colchester, Colebrook, Collinsville, Columbia, Cornwall, Coventry, Cromwell, Danbury, Darien, Deep River, Derby, Durham, East Granby, East Haddam, East Hampton, East Hartford, East Haven, East Lyme, East Windsor, Easton, Ellington, Enfield, Essex, Fairfield, Farmington, Glastonbury, Goshen, Granby, Greenwich, Griswold, Groton, Guilford, Haddam, Hamden, Hartford, Hartland, Harwinton, Hebron, Kensington, Kent, Killingworth, Lebanon, Ledyard, Lisbon, Litchfield, Lyme, Madison, Manchester, Mansfield, Marion, Marlborough, Meriden, Middlebury, Middlefield, Middletown, Milford, Monroe, Montville, Morris, Naugatuck, New Britain, New Canaan, New Fairfield, New Hartford, New Haven, New London, New Milford, Newington, Newtown, Norfolk, North Brandford, North Canaan, North Haven, Norwalk, Norwich, Oakville, Old Lyme, Old Saybrook, Orange, Oxford, Plainfield, Plainville, Plantsville, Plymouth, Pomfret, Portland, Preston, Prospect, Putnam, Redding, Ridgefield, Rocky Hill, Roxbury, Salem, Salisbury, Seymour, Sharon, Shelton, Sherman, Simsbury, Somers, South Windsor, Southbury, Southford, Southington, Stamford, Stonington, Stratford, Suffield, Terryville, Thomaston, Tolland, Torrington, Trumbull, Unionville, Vernon, Voluntown, Wallingford, Warren, Washington, Waterbury, Waterford, Watertown, West Hartford, West Haven, Westbrook, Weston, Westport, Wethersfield, Willington, Wilton, Winchester, Windsor, Windsor Locks, Wolcott, Woodbridge, Woodbury.

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City Oil Co. Inc (800) 581 0000 1 Hartford Square # 66, New Britain, CT 06052 Oil delivery near me (1)

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