Police recorded 237 diesel-related burglaries across New Zealand in April 2026, marking a sharp increase from 94 during the same month last year, according to figures obtained by 1News. The rising theft rate coincides with a surge in diesel prices earlier in the year and growing pressure on global fuel supplies, which has raised concerns that costs could climb further and impact farmers, freight operators, and food costs.
Surging Fuel Thefts Prompt New Police Tracking and Farm Warnings
The escalation in fuel-related crime accelerated rapidly through the first four months of 2026. Police recorded 91 diesel-related burglaries in January, 95 in February, and 131 in March, before the monthly total jumped to 237 in April. According to police, the earlier surge was significant enough to change how law enforcement monitors fuel-related crime, prompting the establishment of a new weekly report to track the offenses.
The figures have prompted warnings for farmers and businesses that store large quantities of diesel to evaluate how well their fuel is protected. Southland farmers David and Kathy Wilson experienced the thefts firsthand earlier this year when CCTV at Wilson’s Vege Stall captured thieves targeting a diesel truck at around 6:30am. David Wilson stated he arrived to open the business and immediately noticed something was wrong, noting, “I could sort of smell diesel.” Thieves had bored a hole into the bottom of the truck’s fuel tank while another vehicle kept watch. “We know that there was a truck taking the fuel and there was a car sitting on the side of the road watching,” David Wilson said, while his wife Kathy described the early-morning theft on a state highway as “pretty ballsy.”
The couple had filled the truck with diesel the previous night. They soon discovered their experience was part of a wider pattern. “There was quite a few that very weekend that around Winton got hammered,” Kathy Wilson said. “You [were] just regularly hearing of farms having the tractors, the diesel tanks, you know, drilled and yeah, it’s all over the place.” The damage left their truck off the road for around two weeks.
Monitoring Technology Detects Rising Suspicious Withdrawals
Data from farm monitoring systems reflects the jump in illegal activity. Levno, a company that monitors fuel on almost 8,000 farms across New Zealand using sensors to alert operators within seconds of fuel level changes, reported a corresponding spike in suspicious behavior during the period police tracked rising burglaries. Levno Chief Executive Oscar Ellison said the company’s data showed a 30% uptick in suspicious withdrawals—incidents occurring in the middle of the night when fuel is not normally drawn at a site.
Ellison noted that suspicious activity does not always involve unknown offenders arriving from outside the property. “Often the amount taken is a small amount, say 10 or 20 litres and when we talk to farmers and investigate those, quite often it is somebody known to the farmer,” Ellison said. “It might be a farm worker or even the son or daughter of the farmer.” At the other end of the scale, Ellison stated that Levno detected suspicious withdrawals exceeding 500 litres, representing thousands of dollars worth of fuel.
Global Supply Pressures and Economic Consequences
The rise in local fuel crime and security concerns unfolds against a backdrop of renewed pressure on international energy markets. Oil and diesel markets face renewed strain amid the Iran conflict and wider disruptions to global energy supplies. Brent crude closed Friday at US$94.39 a barrel, while the US diesel “crack spread”—the gap between crude and diesel prices—hit a record US$102.20 a barrel.
Pickering Energy Partners founder Dan Pickering told BNZ Business Breakfast that the price increase for diesel had been “even more significant than the rise in oil prices,” driven by reduced refining capacity and tighter supply. “Diesel moves a lot of goods around the world,” Pickering said, explaining how higher prices flow into freight, farming, and food costs. According to Reuters reporting, farmers are among the hardest hit due to their heavy reliance on diesel for tractors and harvesters.
For businesses like Wilson’s Vege Stall, potential further price increases present difficult choices. “We can’t double the price of our vegetables to go with the cost, so you just keep wearing it,” Kathy Wilson said, adding that the business is now taking no chances with what remains in their tanks following the theft.
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