Ultramar Energy

Ultramar Energy in London operates a 24/7 cardlock fuel station at 530 Sovereign Rd, serving businesses and fleet operators across the city with diesel and gasoline access around the clock. Unlike a retail gas bar, this location is built around unattended, card-based fuelling for commercial vehicles, contractors, and transport operators who need reliable access to fuel outside standard business hours.

What this London cardlock location offers

This Sovereign Road site provides diesel and gasoline through a self-serve cardlock system available 24 hours a day, seven days a week, designed for business and industrial fuel needs rather than casual passenger-vehicle fill-ups.

Diesel supply for commercial fleets

Diesel is the primary product offered at this location, positioning it as a resource for trucking companies, delivery fleets, and contractors operating in and around London who need dependable access to fuel without waiting on staffed hours. Fleet managers coordinating multiple vehicles benefit from a fixed, known location they can route drivers to as part of a regular refuelling circuit.

Gasoline availability

Gasoline is also available at this site, which extends its usefulness beyond diesel-dependent fleets to include smaller commercial vehicles, vans, and equipment that run on standard gasoline. Having both fuel types under one cardlock account simplifies fuel management for businesses running mixed fleets.

Unattended, round-the-clock access

Because the cardlock operates 24/7, drivers are not restricted to daytime hours. This matters in a city like London, where overnight and early-morning freight movement along the Highway 401 corridor and through the industrial areas near the airport and Sovereign Road means trucks often need to refuel well before or after typical business hours. A card-based system removes the dependency on staffed attendants for these fill-ups.

Location and access

The site sits at 530 Sovereign Rd in London, ON, within reach of the city's industrial and logistics corridors. For businesses routing trucks through southwestern Ontario, having a fixed cardlock point on the east side of London provides a predictable stop between longer hauls, without needing to detour into denser retail areas of the city for fuel.

Fuel demand through the seasons in London

Demand at a commercial fuelling site like this one shifts with the seasons, driven less by casual driving patterns and more by the rhythms of freight, construction, and agricultural activity around London.

Spring: construction and thaw-season activity

As frost restrictions lift on regional roads and construction projects ramp up across London and the surrounding county, diesel demand from heavy equipment, dump trucks, and contractor vehicles tends to climb. Fleets supporting roadwork, land development, and building projects rely on consistent diesel access to keep equipment running through the busy spring build-out.

Summer: peak freight and agricultural movement

Summer brings the heaviest stretch of freight activity in the region, with transport trucks moving goods along the 401 corridor and local delivery fleets running longer routes during extended daylight hours. Southwestern Ontario's agricultural sector also increases fuel use during planting follow-up and mid-season fieldwork, adding to diesel demand from farm and hauling vehicles passing through the London area.

Fall: harvest season and pre-winter logistics

Harvest season across the farmland surrounding London drives a noticeable uptick in diesel use, as grain trucks, combines being transported, and support vehicles move through the region. At the same time, businesses often push to complete deliveries and construction work before winter sets in, keeping commercial fuel demand elevated into late fall.

Winter: cold-weather reliability matters most

Winter is when a 24/7 unattended cardlock proves most valuable. Snow-clearing fleets, salt-truck operators, and emergency service vehicles often need fuel at odd hours during storms, and overnight freight doesn't pause for cold weather. A location that doesn't depend on staffed hours gives fleet operators a dependable option when winter conditions make scheduling around business hours impractical.

Frequently asked questions

Is this Ultramar location open to the public or only for accounts?

This is a cardlock site, meaning fuel access is designed around card-based accounts rather than a staffed retail counter. Businesses and fleet operators typically use this type of location as part of a commercial fuel account.

What fuel types are available at the London Sovereign Road cardlock?

The site offers diesel and gasoline, covering the two primary fuel types used by commercial fleets, contractors, and mixed-vehicle operations in the London area.

Is the cardlock accessible outside regular business hours?

Yes, the cardlock operates 24 hours a day, seven days a week, allowing drivers to refuel at any time without relying on staffed hours.

Where exactly is this location in London?

The site is located at 530 Sovereign Rd in London, ON, positioned to serve fleets and commercial vehicles moving through the city's industrial and logistics areas.