Stewart Tech
A farm diesel tank beside a machine shed at sunrise, with a tractor parked in the yard.

ST100 Fuel Management

Know where every gallon goes.

Clear fuel control and records for your bulk tank, with every fueling tied to a person and a machine.

Manage from your phone or browser

Built around your workflow

Configure the station for the way you fuel.

Choose the information that matters at the tank and keep fueling simple.

  • PIN access

    Know who fueled and control access by user.

  • Equipment ID

    Build the record around the machine receiving fuel.

  • Meter input

    Capture an odometer or hour-meter reading with the fueling.

  • Optional RFID

    Use tags for people or equipment when speed and added security matter.

Explore fuel stations

The ST100 fuel station: a gray enclosure with a four-line display, a sealed keypad and an RFID reader beside it.
pumps on one station
3
to install
3–4 hr
ways to connect
3
assembled
USA

Tank alerts

Know before the tank runs low.

The station subtracts every gallon it dispenses, and you add each delivery when the fuel truck comes. That gives you a running tank balance in the app.

  • Set a low-fuel percentage for each pump
  • Get a notification when the tank crosses it
  • Choose who hears about each pump
  • Check the level with a built-in dipstick calculator

Never pull up to the pump to find you're out of fuel again. You'll always be informed on your tank levels.

A push notification on the phone reading: Dairy Barn-Diesel is running low on fuel. Currently it has 760 gallons and is 15 percent full. Behind it, the tank gauge showing 760 of 5,000 gallons.
A farm shop workbench with wrenches, gloves and an open service manual, a tractor pulled in beside it.

Fuel records that work with maintenance.

Track equipment, services, tasks, and documents from the same platform. Every fueling can move a machine's service schedule forward, even when nobody reads the meter.

Maintenance software

See what needs attention.

Color-coded maintenance intervals make it simple to see what services are OK, upcoming, due, and overdue across your operation.

Explore maintenance

Who it is for

We work with every operation that keeps fuel on site.

If your crew fuels from a tank on site, the ST100 gives you precise control and clear records, whatever the industry.

  • Tractors, trucks, and equipment fueling from one yard tank.

    Farms and ranches

  • Round-the-clock operations where fuel has to be there at 4 a.m.

    Dairies

  • Loaders and feed trucks running every day of the week.

    Feedlots

  • Yard tanks that fuel the fleet, with gallons on every truck and driver.

    Trucking companies

  • Assign fueling to subcontractors or your own guys.

    Construction

  • Bus fleets fueling on a schedule, with records for every route.

    School districts

  • Plows, dump trucks, and public works equipment from a city or county yard.

    Municipal fleets

  • Fuel for the lot, service loaners, and delivery drivers.

    Dealerships

Frequently asked questions

Questions about getting started?

Can the ST100 work without individual PINs?

Yes. Each pump decides what the station asks for, so you can set it up around equipment-first tracking or use RFID tags.

Will it work with our existing tank and pumps?

Yes. The ST100 connects to your existing pumps. Flow meters are required to track fuel pumped.

What happens if the internet goes down?

The station can authorize and record fuelings offline, then upload them when the connection returns.

Can Stewart Tech help with maintenance too?

Yes. Fuel records work alongside equipment records, service intervals, task assignments, and document storage.

A farmer in the yard checking records on a tablet, a tractor parked behind.

Ready to see what your setup could look like?

See pricing, or send us a question before you decide. We are happy to help.