Fuel Theft on Construction Sites: Why Diesel, Plant and Temporary Power Are at Risk

Fuel theft is a serious worksite risk because diesel and petrol are expensive, operationally critical and often stored in exposed, sometimes easily accessible locations. Locations such as plants, vehicles, generators, fuel tanks, depots and temporary power areas are all common targets for thieves.

For construction sites, the loss is rarely limited to the value of the stolen fuel. Fuel theft stops machinery, interrupts temporary power, delays trades, increases call-out costs and creates another layer of pressure on already tight project budgets.

While fuel theft can be a major problem, at Site View Security we know it can also be drastically reduced with proper site security and installing top-of-the-line construction site security cameras. Careful monitoring and stronger controls around storage, access and after-hours visibility will save you thousands.

Below, we examine the key risk areas and, most importantly, how your construction company can prevent fuel theft on your active worksites.

Why fuel theft is becoming a bigger worksite concern

Australia is already operating in a high-theft environment. The Australian Bureau of Statistics reported 595,660 recorded victims of theft in 2024, excluding motor vehicle theft. That was a 6% increase from the previous year and the highest number recorded since 2003.

Fuel has also become a higher-value target. In March 2026, the ACCC reported that daily average retail diesel prices across Australia’s five largest cities reached 303.5 cents per litre on 25 March 2026, up 27.8 cents per litre, or 10%, from the previous week. Across more than 190 regional locations monitored by the ACCC, diesel reached 307.6 cents per litre, up 28.6 cents per litre, or 10%, over the same period.

That matters for construction because diesel is not optional on many worksites. Excavators, loaders, trucks, pumps, generators, lighting towers, compressors and other machinery may all rely on fuel. When fuel becomes more expensive, the value of stored diesel rises and the cost impact of theft becomes much more severe.

Fuel theft is not just a service-station issue

Fuel theft is often discussed in the context of petrol drive-offs, but the risk is much broader than service stations. In April 2026, Queensland’s Crime and Corruption Commission warned that current fuel market conditions were heightening risks associated with fuel, fuel cards and vehicles. The CCC specifically identified risks, including fuel being stolen from depots and vehicles, falsified inventory records and logbooks, misuse of vehicles, and fraudulent use of fuel cards or corporate credit cards.

Those risks are highly relevant to construction businesses. Builders, civil contractors, infrastructure contractors and project teams may operate work vehicles, plant, site depots, temporary fuel storage, fuel cards and machinery across multiple locations. Fuel theft can therefore happen physically, administratively or through poor controls around usage and records.

Current Australian fuel theft examples show the scale of the problem

Recent cases show how quickly fuel theft can move from a small loss to a serious commercial problem.

ABC News reported that a man was charged over the alleged theft of $1.1 million worth of diesel fuel from unmanned depots in Parkinson, Bundamba and Karawatha over a 12-month period between December 2024 and December 2025.
ABC News reported that South Australia Police recorded 221 fuel thefts in the week ending 15 March 2026, up from 162 the previous week.
ABC News reported that a Greater Western Sydney trucking company said it lost almost $10,000 worth of diesel in one month to thieves siphoning from truck tanks while drivers slept.
NSW Police reporting stated that two men were charged after 1,000 litres of diesel, worth approximately $3,500, was allegedly stolen from a building site in Tralee, near Queanbeyan.
ABC News reported several regional NSW diesel theft investigations, including 800 litres from a property around Orange, 500 litres from a farm at Nyngan, 180 litres from a truck on a farm near Tamworth, and about 150 litres from fuel storage west of Gilgandra.

These examples are not all construction-site cases, but they show the broader pattern that matters to worksites: high-value fuel, unattended vehicles, depots, tanks, rural or regional sites, and after-hours access all create opportunity.

How fuel theft happens on worksites

Fuel theft can happen in several ways. For security reasons, the important point is not the mechanics of how fuel is removed, but the weak points that allow it to happen. On construction sites, those weak points are usually unattended fuel, exposed machinery, poor visibility, uncontrolled access or weak records.

The most common patterns include:

Fuel removed from plant and machinery: excavators, loaders, graders, rollers, telehandlers and other machinery can become targets when they are parked overnight or left in low-visibility areas.
Fuel taken from trucks, utes and work vehicles: vehicles left on site, in yards or near access roads can be exposed after hours.
Fuel tanks, bowsers or fuel pods targeted: temporary fuel storage and bulk tanks are higher-value targets because more fuel can be accessed in one location.
Generators and temporary power systems targeted: sites without permanent power often rely on generator fuel, making temporary power areas especially important to protect.
Depot or yard access abused: unmanned depots and storage yards can become targets if access controls and monitoring are weak.
Fuel cards or account systems misused: the CCC has specifically warned about fraudulent use of fuel cards and corporate credit cards, as well as falsified inventory records and logbooks.

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The most common fuel theft targets on construction sites

Construction sites are exposed because fuel is often spread across different parts of the job. It may be stored in tanks, sitting inside machinery, used for temporary power, or attached to fleet vehicles moving between jobs.

Plant and machinery

Excavators, loaders, graders, rollers, forklifts, telehandlers and similar equipment can hold valuable quantities of diesel. If machinery is parked in isolated sections of a site or left unattended over weekends, it can become an attractive target.

Work vehicles and trucks

Utes, vans, trucks and service vehicles are practical targets because they are mobile, familiar and often left close to site entrances or parking zones. For contractors managing multiple sites, repeated smaller losses from vehicles can quickly become a serious cost.

Generators and temporary power

Generator fuel is especially important because it can affect more than machinery. If fuel is stolen from a generator or temporary power setup, the result may be loss of lighting, pumps, temporary services, communications or other site-critical systems.

Fuel tanks, bowsers and fuel pods

Bulk fuel storage is one of the highest-risk categories because it concentrates value in one place. Fuel tanks and bowsers should be treated like other high-value site assets, especially on civil, infrastructure, regional and remote projects.

Depots, yards and storage areas

Contractors often store vehicles, machinery, tanks or fuel cards at yards and depots. The alleged Queensland $1.1 million diesel theft case shows why unmanned depots and fuel access systems need strong controls and monitoring.

Fuel cards and account systems

Fuel theft is not always physical. Fuel cards, corporate credit cards, vehicle misuse, false logs and inaccurate records can all create losses. For larger contractors, this can become a fleet-management issue as much as a site-security issue.

Why is the cost higher than the fuel stolen

A fuel theft event can affect a site in several ways at once. The obvious cost is the value of the stolen diesel or petrol, but the operational impact can be much larger.

Machinery may not be ready: plant that is out of fuel cannot start work as planned.
Temporary power may be interrupted: generators, lighting towers, pumps or other temporary systems may stop operating.
Trades can be delayed: crews may wait while fuel is replaced or equipment is checked.
Emergency refuelling can cost more: urgent deliveries, call-outs and downtime can increase the real cost of the theft.
Fuel cards and records may need investigation: where misuse is suspected, managers may need to review logs, invoices, vehicles and staff access.
Insurance and reporting can add admin: theft creates paperwork, evidence-gathering and potential excess payments.
Repeat theft can create ongoing losses: a site that is easy to access once may be targeted again if nothing changes.

How to reduce fuel theft from construction sites

Fuel theft prevention should be treated as a layered site-security problem. One control is rarely enough. The goal is to reduce access, improve visibility, strengthen records and make suspicious activity harder to carry out unnoticed.

Secure fuel storage and access points

Queensland Police fuel tank security guidance recommends practical steps such as securing tanks, controlling access to valves and pumps, monitoring fuel use, keeping logs, using lighting and considering site security cameras. For construction sites, this means fuel tanks, bowsers and fuel pods should not be treated as low-risk background equipment.

Keep fuel tanks, bowsers and fuel pods in controlled areas where possible.
Use lockable caps, valves and access points.
Control pump access and power to dispensing equipment.
Avoid leaving unnecessary fuel on site over weekends or shutdown periods.
Place high-value fuel storage where it can be seen, checked and monitored.

Protect plant, machinery and generators

Fuel held inside machinery is still fuel at risk. Plant and generators should be included in site lock-up procedures, especially before weekends, public holidays and shutdown periods.

Park machinery in visible, controlled areas where possible.
Check fuel caps and access points before leaving site.
Keep generators and temporary power areas covered by lighting or surveillance where practical.
Include fuel points and machinery in end-of-day site checks.
Look for signs of interference during morning start-up checks.

Improve lighting and visibility

Fuel theft is much easier when tanks, vehicles and machinery are hidden in dark or low-traffic areas. Lighting does not solve the problem on its own, but it improves deterrence and makes suspicious movement easier to see.

Light fuel storage areas, temporary power zones and machinery parking areas.
Avoid placing fuel tanks in isolated blind spots.
Keep access roads and site entrances visible where possible.
Increase checks around weekends, shutdowns and high fuel-price periods.

Use cameras around high-risk fuel areas

Site security cameras can help reduce fuel theft by increasing visibility, deterring opportunistic offenders and creating a record of suspicious activity around tanks, machinery, vehicles and temporary power areas. On worksites, camera coverage is especially useful around places where fuel is concentrated or where vehicles may enter after hours. Installing temporary Licence Plate Recognition (LPR/ANPR) cameras can also help control access to areas with vulnerable materials.

Useful camera coverage areas can include:

Fuel tanks, bowsers and fuel pods.
Generator and temporary power areas.
Plant and machinery parking zones.
Site entrances and access roads.
Vehicle and trailer parking areas.
Storage yards, depots and laydown zones.

For active sites, the value is not just recording what happened after the fact. Visible and managed camera coverage can make it harder for offenders to approach, spend time near fuel points, remove fuel or return repeatedly without being noticed.

Track fuel use and investigate unusual patterns

Good records help identify whether losses are caused by theft, misuse, leakage, poor procedures or inaccurate reporting. This is especially important for contractors using multiple vehicles, fuel cards, depots or temporary tanks.

Track fuel deliveries and remaining volume.
Keep a fuel-use log by machine, vehicle, user or project.
Reconcile fuel-card transactions against vehicles, locations and work schedules.
Investigate sudden spikes or unexplained usage.
Cancel or suspend missing cards immediately.
Review access when staff, subcontractors or suppliers change.

This aligns with the CCC’s warning that fuel-related risks can include falsified records, misuse of vehicles and fraudulent use of fuel cards or corporate cards.

Build fuel checks into site routines

Fuel theft prevention should be part of normal site management rather than something considered only after an incident. Small routines can reduce easy opportunities.

Include fuel points in daily lock-up checks.
Check tanks, valves, pumps and caps before leaving site.
Record fuel levels before weekends or long shutdowns.
Keep temporary fuel storage away from easy public access.
Ask supervisors to check high-risk areas after weekends and public holidays.
Encourage workers to report suspicious activity near vehicles, tanks, generators or machinery.

Why after-hours coverage matters

Many fuel theft risks become worse after hours. During the day, the presence of workers, supervisors, deliveries and site visitors creates natural visibility. At night, over weekends or during shutdowns, the same site may have machinery, tanks and vehicles sitting unattended for long periods.

This is why fuel theft should be considered when planning after-hours site security. A site may have valuable fuel in several locations at once: diesel inside machinery, fuel in generators, fuel in work vehicles, bulk storage in tanks and access systems tied to fuel cards or depots. If those areas are not visible or monitored, losses may continue before anyone understands the pattern.

Fuel theft should be treated as a project-risk issue

Fuel theft is not just a cost-of-living crime story or a service-station issue. For construction sites, it is a project-risk issue. Stolen diesel can stop machinery, delay trades, interrupt temporary power, create emergency refuelling costs and expose weaknesses in site access, records and after-hours visibility.

The current data shows why the issue deserves attention. Theft reached a 21-year high nationally in 2024. Diesel prices rose sharply in March 2026. Queensland’s CCC has warned that fuel market conditions increase the risk of fuel being stolen from depots and vehicles, as well as fuel-card and record misuse. Recent cases have involved large-value diesel fraud, regional diesel thefts, fuel stolen from trucks and fuel allegedly stolen from a construction site.

For builders, civil contractors, developers and project teams, the practical response is to treat fuel like any other high-value site asset. It needs controlled access, good records, lighting, visibility, surveillance and clear site routines.

Protect Fuel, Plant and Temporary Power With Managed Site Cameras

Fuel theft can stop work before the day even starts. If diesel is stolen from plant, generators, trucks, fuel tanks or temporary power areas, the result can be downtime, delays, emergency refuelling costs and disruption across the site.

Site View Security provides managed security camera hire for active worksites, including coverage for access points, plant areas, temporary power zones, storage areas, fuel points and after-hours risk areas. Visible, monitored camera coverage helps deter opportunistic theft, improves visibility around high-risk zones and provides footage that can support investigation, reporting and response if suspicious activity occurs.

If your site has stored fuel, plant, generators, trucks, temporary power, fuel tanks or after-hours access risk, contact Site View to discuss managed site security camera hire for your worksite.