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Denver · Colorado
Fuel Delivery in Denver, CO
Diesel, DEF, gasoline and R99 renewable diesel delivered to fleets, jobsites, generators and bulk tanks in and around Denver. Talk to a fuel expert who sizes the job right, 24 hours a day, 7 days a week.
24/7
Dispatch, nights, weekends, holidays
5,400+
Commercial clients nationwide
20–4,400
Gallons per drop
Fuels Delivered in Denver
Diesel, gasoline & DEF delivery in Denver
Off-Road Diesel
Red-dyed ULSD #2 for construction equipment, generators, agriculture and reefers.
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On-Road Diesel
Clear, highway-legal ULSD #2 (15 ppm sulfur) for fleets, trucks and on-road vehicles.
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Gasoline
87, 89 and 91 octane plus ethanol-free gasoline for fleets and small engines.
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DEF
ISO 22241 diesel exhaust fluid in jugs, drums or bulk totes, delivered with your diesel.
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Renewable Diesel (R99)
Drop-in, low-carbon renewable diesel for fleets with sustainability targets.
View product →Fuel Delivery in Denver
One refinery, a hazmat-free tunnel and deep cold in Denver
Serving City and County of Denver
Denver’s fuel story starts in Commerce City, on the city’s northern edge. Suncor’s refinery there is the only petroleum refinery in Colorado. In 2021, the EIA says, it supplied 25% of distillate sales across the entire Rocky Mountain region.
In December 2022, the cold took it offline. On the afternoon of December 21, the temperature at DIA dropped 37 degrees in one hour. By the next morning Denver was at -24°F. The refinery, damaged by the extreme cold, shut down on December 24. Repairs delayed operations until the end of the first quarter of 2023. The region drew on inventories and fuel from out-of-state refineries.
That’s the lesson for Denver operators. When one plant supplies that much of the region’s diesel, the fuel already in your tank is your buffer.
Fuel can’t take the tunnel
West of Denver, I-70 climbs into the mountains, and fuel trucks follow different rules. Placarded loads, including diesel and gasoline tankers, aren’t allowed through the Eisenhower/Johnson Memorial Tunnels. They go over Loveland Pass on US 6 instead. When winter weather closes the pass, CDOT holds hazmat vehicles and escorts them through the tunnel, usually at the top of the hour. For a high-country job site, that adds time to every delivery. Plan bigger drops and more storage on site.
Which FuelGo services fit Denver
- Supply security: scheduled on-site fuel delivery, plus fuel tank rentals where a site has no storage.
- Winter readiness: generator fueling before the front, emergency fuel delivery when it hits.
- Airfield and fleets: mobile fleet fueling with DEF, or bulk transport loads up to 7,500 gallons.
103,000 b/d
Suncor Commerce City, Colorado's only refinery
25%
Rocky Mountain distillate sales from that refinery (2021)
-24°F
Denver low on Dec. 22, 2022, after a 37° one-hour drop at DIA
33,531 acres
Denver International Airport property
Sources: eia.gov · weather.gov · en.wikipedia.org · codot.gov · codot.gov
How Fuel Gets to You
Mobile fueling or bulk delivery: which fits your Denver site?
Three delivery formats. We’ll quote whichever fits your volume, site access and cost target.
Wet-Hose Fueling
Mobile fleet fueling
Overnight or day shift, fuel direct to each tank
A driver pulls into your yard after hours, fuels every truck or piece of equipment directly, logs each fill, and clears out before your crews arrive. No staff required on site.
Best for: Trucking fleets, delivery yards, rental fleets and service vehicles.
Tank Wagon Delivery
On-site tank fills
20 – 4,400 gallons per drop · same-day or scheduled
A smaller delivery truck fills your day tank, jobsite bulk tank or generator. The flexible option when volume varies or site access is tight.
Best for: Construction sites, generator refills, day tanks and smaller bulk storage.
Transport Load
Bulk transport delivery
Full transport loads to 7,500+ gallons · scheduled
Tractor-trailer delivery straight into large bulk storage. The lowest cost per gallon for high-volume buyers.
Best for: Data centers, large industrial sites, agriculture and rail yards.
Denver Industries We Fuel
Industries we fuel in Denver
Click any industry for service detail.
Construction
Construction & development
Dyed diesel to excavators, dozers, light towers and site generators, fueled before the crew arrives.
Learn more →Data Centers
Data centers & critical power
Scheduled standby refills and emergency generator fueling so backup power is never the weak link.
Learn more →Fleets
Fleet fueling & yards
Overnight wet-hose fueling so every truck starts the shift full, with each fill logged by unit.
Learn more →Logistics
Logistics & distribution
Yard trucks, reefers and forklifts fueled on site, so drivers stay on routes instead of in fuel lines.
Learn more →Agriculture
Farms & agriculture
Dyed diesel and gasoline to field tanks and equipment through planting and harvest.
Learn more →Telecom
Telecom & cell towers
Generator refueling for remote tower sites, including emergency runs during outages.
Learn more →Government
Government & municipal
Generator, fleet and equipment fueling for agencies, municipalities and public facilities.
Learn more →Waste
Waste & recycling
Refuse trucks and heavy equipment fueled overnight in the yard, ready for early routes.
Learn more →Denver Services
Generator, fleet & bulk fuel delivery in Denver
Mobile Fleet Fueling
Overnight wet-hose service for fleets and yards.
On-Site Delivery
Direct-to-equipment fueling at your jobsite.
Bulk Fuel Delivery
Transport loads to large storage tanks.
Generator Fueling
Scheduled refills and emergency response.
Fuel Tank Rentals
Tanks from 119 to 17,000 gallons, refills included.
Emergency Fueling
Rapid response when outages or storms hit.
Fuel Polishing
Water and contaminants removed from stored fuel.
Reefer Fueling
Refrigerated trailers kept running.
Compliance & Credentials
Approved for restricted gates and sites
Our drivers and trucks carry the credentials your procurement team is going to ask about.
DOT
Hazmat registered
CDL-A
Hazmat & Tanker endorsed
OSHA
HAZWOPER trained
IFTA
Interstate tax licensed
SPCC
Spill response ready
How It Works
From quote to fuel in the tank, three steps
1
Request a quote
Call 800-720-4546 or request online. Tell us your Denver location, fuel grade and volume.
2
We schedule it
One-time or recurring. We confirm gate codes, after-hours access and the exact drop location.
3
Fuel arrives on site
CDL and hazmat-certified drivers deliver to your tanks and equipment, with every gallon on the invoice.
Buyer Resources
Useful reading before you order
Fuel Types
On-Road vs. Off-Road Diesel
When you can run red-dyed diesel, the tax rules, and the penalties for getting it wrong.
Compliance
Diesel Storage Regulations by State
Tank, containment and permitting rules that apply in Colorado and beyond.
Free Tools
Fuel Calculators & Tools
Size a tank, estimate generator burn and plan DEF consumption before you call.
Denver FAQ
Denver fuel delivery questions, answered
What happens to diesel supply in Denver if the Suncor refinery goes down again?
The region falls back on inventories and on product brought in from out-of-state refineries, which is what happened in early 2023. The practical defense is storage: a site tank kept full on a schedule, so a supply squeeze does not become a work stoppage. We can set up scheduled on-site delivery and tank rentals.
Can you deliver fuel to job sites up the I-70 mountain corridor from Denver?
Talk to dispatch about the site and timing. Placarded fuel loads can't go through the Eisenhower/Johnson Tunnels; they use Loveland Pass (US 6), or wait for CDOT's escorted runs through the tunnel when the pass is closed. That affects delivery windows in winter.
When should Denver fleets switch to winter-blend diesel?
Before the first arctic front, not after it. On December 21, 2022 the temperature at DIA fell 37 degrees in one hour. Fuel that was fine at lunch can gel in equipment parked outside overnight.
Do you deliver fuel 24/7 in Denver?
Yes. FuelGo dispatch runs 24 hours a day, 7 days a week, 365 days a year, including nights, weekends and holidays. Call 800-720-4546 any time, or request a quote online and a dispatcher replies within the hour.
What fuels can you deliver in Denver?
Clear on-road diesel (ULSD #2), red-dyed off-road diesel, gasoline, diesel exhaust fluid (DEF) and R99 renewable diesel. Most customers combine two or more on the same delivery.
Do you deliver diesel to generators in Denver?
Yes. Dyed diesel for standby and prime generators, on a refill schedule or as an emergency run during an outage. Generator fueling →
Do you offer mobile fleet fueling in Denver?
Yes. We wet-hose trucks and equipment in your yard, usually overnight, and log every gallon by unit. Mobile fleet fueling →
Can you deliver bulk diesel to our tanks in Denver?
Yes. Anything from 20 gallons to a 7,500-gallon transport load, into above-ground, underground or portable tanks. Bulk delivery →
How much fuel can you deliver at once?
Tank wagon deliveries run from 20 to 4,400 gallons per drop, and full transport loads to 7,500 gallons or more for large bulk tanks. Tell us your tank size and usage and we’ll recommend the right format.
How much is diesel tax in Colorado?
On-road (clear) diesel in Colorado carries $0.6050 per gallon in combined federal and state taxes and fees, and off-road (dyed) diesel $0.0270 per gallon, as of October 5, 2026. Sales and local taxes are extra where they apply. Using dyed diesel on public roads is illegal. See diesel taxes by state →
Do you offer emergency fuel delivery in Denver?
Yes. If a generator is running low or a site is about to run dry, call 800-720-4546 and a dispatcher will confirm what we can get to you and when.
Can you set up recurring scheduled deliveries?
Yes. Most customers start with a one-time delivery and move to a recurring schedule, so tanks, generators and fleets are topped up before they run low, without anyone having to call it in.
Do you rent fuel tanks?
Yes. We rent diesel and gasoline tanks from 119 to 17,000 gallons, with pumps, meters and hose fitted, and refills on a schedule. See our fuel tank rental page for sizes.
Do you have smaller trucks for tight sites?
Yes. Smaller delivery trucks reach tight urban sites, parking structures and jobsites where a full-size tanker can’t fit.
What payment options do you accept?
Credit cards, ACH and checks. Credit terms are available for qualifying commercial accounts. Ask your dispatcher for details.
Also Serving Across Colorado
Other Colorado delivery locations
Need fuel in Denver? We’re already on our way.
Get a fuel delivery quote for your Denver operation. A dispatcher replies within the hour.