Kalibrate and the Quiet End of Gas Station Price Competition
For decades, gas stations competed the same simple way: undercut the guy across the street. Drive by two stations a block apart and you’d often see genuinely different prices, because each owner was racing to win your business. That race is disappearing, and a lawsuit filed in June 2026 argues software is the reason why.
What the lawsuit alleges
A proposed class action filed in federal court in Sacramento accuses Kalibrate, a fuel-pricing software company headquartered in Manchester, England, of running what plaintiffs call a system that coordinates pump prices across competing gas stations instead of letting them compete independently. The suit names major retailers alongside Kalibrate itself, including Marathon Petroleum, BP, Circle K, 7-Eleven, Walmart, and Albertsons, collectively operating more than 1,700 gas stations across California.
The mechanism is straightforward once you see it. Kalibrate’s software pulls in pricing data from competing stations and uses that data to recommend prices, then pushes those recommendations out to pumps, store signage, and point-of-sale systems. Every station using the platform is feeding into and pulling from the same pool of competitor data. Plaintiffs describe the software as the “central nervous system” behind an effort to eliminate retail price competition among gas stations.
The numbers behind the claim
According to the complaint, areas where stations rely on Kalibrate saw average price increases of roughly 6 cents per gallon, with some markets seeing increases up to 30 cents per gallon in places where adoption is widespread. Scale that across a state that burns through as much fuel as California does, and the math gets serious fast. The suit estimates each one-cent increase in gas prices costs California drivers around $134 million per year statewide.
Who owns Kalibrate
Kalibrate is owned by Hanover Investors, a UK private equity firm. Hanover took Kalibrate private in 2017 in a deal worth about £29 million, operating through a vehicle called Hanover Bidco. Kalibrate now runs as a Hanover portfolio company.
Matthew Peacock founded Hanover Investors and holds the private equity shareholder position tied to Kalibrate. Nick Greatorex sits on Kalibrate’s board as Portfolio Company Chairman and Non-Executive Director, a role he has held since 2019. He also sits on the board of Brady plc, a commodity trading software company, and spent years at Capita plc before joining Hanover, including a period as interim CEO there.
Since acquiring Kalibrate, Hanover has pushed an acquisition strategy that expanded the company well past its original pricing tool. Kalibrate bought Trade Area Systems in 2020 and Intalytics in 2021, both data and analytics firms. Each purchase added predictive modeling and location intelligence capabilities on top of the core fuel-pricing engine.
This ownership structure matters for the lawsuit. A private equity firm holds Kalibrate with the goal of growing the company’s value ahead of a future sale or exit. Expanding data collection and predictive analytics serves that goal directly. Software built to maximize retailer margins and grow acquisition value serves the retailer and the investor, not the driver paying at the pump. The lawsuit’s core claim, that Kalibrate’s tool coordinates prices across competitors instead of leaving each station to compete on its own, fits a business built to extract more value from every transaction it touches.
Why this isn’t the same as old-school price fixing, legally speaking
Traditional price fixing needs a handshake, a phone call, some kind of direct agreement between competitors. That’s exactly what makes this case interesting: nobody needs to talk to anybody. The lawsuit leans on California’s Cartwright Act, the state’s core antitrust law, and specifically on AB 325, a newer law signed by Governor Newsom that extends antitrust liability to pricing algorithms directly. Under that law, a “common pricing algorithm” is defined broadly, covering any technology used by two or more parties that draws on competitor data to recommend, align, stabilize, or otherwise influence pricing. Plaintiffs argue the new law exists specifically so that companies can’t dodge liability for coordinated pricing just by handing the decision-making off to an algorithm instead of a person.
What to watch for as a driver, wherever you are
This case is California-specific for now, tied to a state law that most states haven’t passed a version of yet. But the underlying software isn’t regional. Kalibrate operates in more than 70 countries, and fuel-pricing algorithms like it are common well outside California. A few things worth paying attention to at the pump, regardless of where you live:
Do prices across a whole area move together, on the same day, by close to the same amount, even though the stations are run by different companies? That’s the pattern this lawsuit is built around. Has genuine price variation between nearby stations gotten harder to find over the past couple years? A market with real competition still shows some spread. Watch for state-level legislation similar to California’s AB 325. As this case gets attention, expect other states to consider similar bills extending antitrust law to cover algorithmic coordination.
None of the defendants named in the suit have responded publicly to the allegations as of this writing. The case is in its early stages, and nothing here has been proven in court yet, it’s a complaint, not a verdict. Worth watching regardless, since it’s one of the first real tests of whether “the algorithm did it” holds up as a legal shield.