A California antitrust lawsuit claims that fuel retailers including Walmart, 7-Eleven, and BP used artificial intelligence software from an England-based company to effectively coordinate gas prices across the state — and according to NBC Bay Area, which first reported the case, none of the defendants has so far denied it.

The suit names Kalibrate, a UK company whose AI-driven fuel pricing platform is used by gas retailers worldwide to track competitor prices and hit margin targets in near-real time. The theory mirrors cases already working their way through California courts: when competing companies plug into the same algorithm, the result can look legally indistinguishable from a back-room price-fixing agreement — even without a single phone call. For Bay Area drivers who have spent weeks paying nearly $2 above the national average, the lawsuit raises a pointed question about whether they've been on the losing end of a market that stopped being competitive.

A new antitrust lawsuit alleges that Walmart, 7-Eleven, and BP used artificial intelligence to coordinate gas prices across California, according to NBC Bay Area reporter Scott Budman, who first reported the case on June 23. The complaint targets Kalibrate — a UK-based software company whose fuel pricing platform tracks data from gas pumps across competing stations and feeds the results back to retailers to help them adjust prices dynamically.

Walmart, 7-Eleven, BP, and Kalibrate did not respond to requests for comment from NBC Bay Area.

The specific case number and court have not been publicly identified, and the plaintiff has not been named in any available coverage. The complaint's core theory, however, is already familiar to California antitrust litigators: that companies using the same pricing software can achieve the functional equivalent of price coordination without ever explicitly agreeing to do so.

What Kalibrate actually sells

Kalibrate describes its fuel pricing product on its own website as software that "delivers competitive, profitable prices at speed" by combining "experience, data, and AI-driven intelligence." The company markets the platform as a tool for fuel retailers to achieve "volume and margin targets" — meaning it's explicitly designed to maintain profitability even as it tracks competitor pricing across a network.

Joe Margres, a customer identified on Kalibrate's website as a "Manager of Retail Petroleum Pricing," describes the product as "comprehensive and robust" and says his team has "made it work brilliantly." It's a routine endorsement of a pricing tool — but it also illustrates just how openly the industry uses coordinated AI pricing as a standard operating practice.

A pattern that's now showing up in court

The gas price lawsuit arrives at a moment when California courts are being tested on exactly this legal theory. Five days before NBC Bay Area published its account of the Kalibrate complaint, The Dissent reported that JetBlue was facing a separate class action in California alleging it used PROS Holdings software to set individualized airfares based on behavioral data from passengers — the same vendor the Federal Trade Commission subpoenaed in 2024.

Both cases share a core antitrust claim: that a software intermediary serving multiple competitors enables price coordination that would otherwise require illegal explicit agreement. The legal framework gained its most significant foothold through the RealPage litigation, in which landlords across the country were accused of using shared rent-setting AI to inflate housing costs.

California has become the primary battleground for this emerging class of antitrust claim, in part because of a 2025 state law that expanded the legal basis for challenging algorithmic pricing. The Kalibrate lawsuit is the first to apply that framework explicitly to fuel retail.

What Bay Area drivers are paying

The lawsuit lands against a backdrop of sustained gas price pain in the Bay Area. As of June 20, San Francisco drivers were paying an average of $5.77 per gallon — nearly $2 above the national average — even after nearly four straight weeks of price declines driven by lower crude costs following the U.S.-Iran agreement on shipping lane access. The structural premium that California and the Bay Area pay over national averages has proven durable across months of external supply-side relief, which makes the question of whether pricing software is compressing the competitive range at the retail level more pointed.

What's still unknown

The complaint's filing details — plaintiff name, case number, attorney of record, and court — have not been publicly surfaced in any available database or news coverage as of publication. A related Law360 report from June 22 referenced a similar suit naming Marathon and BP over algorithmic pricing in California, suggesting there may be parallel complaints filed by different plaintiffs' firms. NBC Bay Area's account and Kalibrate's own published product materials represent the verified record. The defendant companies have not offered public statements.