Major retailers like Walmart, 7-Eleven, Albertsons, and BP are facing allegations of using AI to fix gas prices, as detailed in a new lawsuit filed in California. (Illustrative AI-generated image).
- The Lawsuit at a Glance
- Who Is Suing Whom and Why
- How the AI Price-Fixing Tool Worked
- The Legal Framework: California's New Antitrust Law
- California's Gas Prices in National Context
The Lawsuit at a Glance
A group of California drivers filed a class action lawsuit on Monday, June 22, 2026, accusing some of the biggest names in the gas station and retail business of using artificial intelligence to illegally push up gas prices. The lawsuit, filed in federal court in Sacramento, names BP, 7-Eleven, Walmart, Albertsons, and Marathon as defendants. Together, these companies operate more than 1,700 gas stations across California, according to the court filing.
The suit claims the companies used a software tool developed by a company called Kalibrate to set prices in a way that kept them artificially high. The drivers behind the lawsuit say this cost them real money at the pump. California already has some of the highest gas prices in the country. At the time the lawsuit was filed, the average price for a gallon of regular gas in the state was $5.56, according to AAA. That’s more than $1.60 above the national average of $3.92 per gallon.
The case is one of the first big tests of a California law that specifically bans businesses from using computer algorithms to coordinate prices with competitors. That law, known as Assembly Bill 325, took effect in 2024. The drivers are asking the court to order the companies to stop using the AI tool and to pay damages for what they say was a years-long scheme to overcharge customers.
The story was first reported by Bloomberg and then picked up by multiple news outlets, including Reuters, Fast Company, and MSN. None of the named companies have issued a public statement about the lawsuit yet, as of the time of publication. Lawyers for the drivers are seeking class-action status, which would allow all California residents who bought gas from any of the named retailers to join the case.
Who Is Suing Whom and Why
The lawsuit was filed on behalf of all California drivers who bought gasoline at stations operated by the defendants. The named plaintiffs are individual consumers who live in California and purchased gas during the period covered by the lawsuit. They are represented by several law firms that specialize in antitrust and consumer protection cases.
The defendants read like a who’s who of the fuel and convenience store industry. BP is one of the world’s largest oil and gas companies. 7-Eleven operates thousands of convenience stores, many of which sell gas. Walmart runs fuel stations at many of its supercenters. Albertsons is a major grocery chain that also sells gas at some locations. Marathon is a refiner and retailer that owns or supplies a large number of gas stations in California.
The core accusation is that these otherwise competing companies used a common AI tool to coordinate pricing decisions. Instead of setting gas prices independently based on local market conditions, the suit alleges, they let the software do it for them. And that software, the plaintiffs say, was designed to maximize profits by keeping prices high across all the stations using it.
The lawsuit cites violations of California’s Cartwright Act, which is the state’s main antitrust law, and Assembly Bill 325, which targets algorithmic price-fixing specifically. The plaintiffs argue that by using the same AI pricing tool, the companies effectively formed a cartel. They shared non-public pricing data through the software, which then nudged all of them toward the same high prices. That, the lawsuit says, is illegal coordination, even if no human ever picked up the phone to agree on prices.
How the AI Price-Fixing Tool Worked
At the center of the case is a software tool made by Kalibrate, a company that describes itself as a provider of fuel-pricing intelligence. According to the lawsuit, Kalibrate’s AI tool is designed to help gas stations set prices in real time. It takes in data like competitor prices, traffic patterns, and demand forecasts, and then suggests the best price for each station to charge.
That sounds like a harmless business tool. But the lawsuit says that when multiple competitors use the same AI system, it can have a different effect. Instead of helping each station compete better, the software can act as a central coordinator, pushing all the stations toward the same or similar prices. The plaintiffs argue this effectively replaces the normal competitive process where each station tries to undercut its rivals to win customers.
Here’s how the system allegedly worked in practice. Each station using Kalibrate would feed real-time pricing data into the system. The AI would then analyze that data and suggest optimal prices. Because all stations using the tool were giving it the same kind of data, the suggestions tended to converge on a narrow range of prices. Over time, the lawsuit claims, price competition among stations using Kalibrate decreased, and prices settled at levels higher than they would have been in a truly competitive market.
The lawsuit cites internal company communications and expert analysis to back up these claims. It says the AI tool effectively turned the defendants into a single pricing entity, even though they were supposed to be competing businesses. The tool’s algorithms, the plaintiffs argue, were designed to automatically match price increases rather than encourage price cuts. This created what economists call a “tacit collusion” environment, where prices go up but rarely come down.
The Legal Framework: California’s New Antitrust Law
This case is particularly significant because it’s one of the first major lawsuits to test Assembly Bill 325. That law, passed in 2024, makes it illegal for companies to use computer algorithms to fix prices with competitors. Before AB 325, it was often difficult for prosecutors and plaintiffs to prove price-fixing when the coordination happened through software rather than direct human agreement.
Traditional antitrust law requires showing that companies agreed to fix prices, usually through meetings, phone calls, or emails. But with AI tools, the coordination can happen automatically, without any direct communication between humans. AB 325 closes that loophole by explicitly stating that using an algorithm to coordinate prices with a competitor counts as price-fixing, even if no humans ever talked to each other about it.
The law applies to any business that uses software to set prices in a way that considers data from competitors. It doesn’t ban all use of AI for pricing. But it does say that if the software’s effect is to help competitors collude on prices, that’s illegal. The burden is on the companies to show that their use of AI doesn’t facilitate coordination.
California has a history of being a leader in consumer protection and antitrust enforcement. The state’s Cartwright Act, which dates back to the early 20th century, is one of the strongest state antitrust laws in the country. AB 325 added a modern twist to that law, recognizing that technology had created new ways for companies to cooperate without ever meeting in a smoke-filled room.
Legal experts say this case could set a precedent for how courts treat AI-driven pricing across the country. If the plaintiffs win, it could encourage other states to pass similar laws and could lead to more lawsuits against companies using AI pricing tools that effectively coordinate prices among competitors.
California’s Gas Prices in National Context
California has always had higher gas prices than most of the rest of the country. The state’s unique environmental rules require a special blend of gasoline that is more expensive to produce. State taxes on gas are also higher than the national average. But even accounting for those factors, California’s prices have been running well above what economists would expect in a normal competitive market.
According to AAA, the average price of regular gas in California on the day the lawsuit was filed was $5.56 per gallon. That’s about 42% higher than the national average of $3.92. The gap between California and the rest of the country has been growing over the past few years. In 2020, the difference was about $1.00 per gallon. By 2026, it had widened to more than $1.60 per gallon.
National gas prices have also been rising. The U.S. average has gone up about 50% since the start of the Iran war, according to PBS NewsHour. That conflict, which began in early 2024, disrupted global oil supplies and sent crude prices soaring. But the lawsuit argues that California prices rose even more than the national trend would suggest, and that the AI pricing tool was a key reason why.
The plaintiffs’ lawyers point to data showing that the gap between California’s prices and the national average grew especially fast in periods when crude oil prices were falling. Normally, falling crude prices should lead to lower gas prices at the pump. But in California, the lawsuit alleges, the AI tool kept prices from dropping as fast as they should have. That pattern, the lawyers say, is consistent with coordinated pricing rather than genuine competition.
What This Means for Drivers
If you bought gas at any BP, 7-Eleven, Walmart, Albertsons, or Marathon station in California during the time period covered by the lawsuit, you could be eligible for part of any settlement or court award. The lawsuit is seeking class-action status, which means it would cover all California residents who purchased gas from those retailers. The exact time period covered by the suit hasn’t been specified in public filings yet, but it likely goes back several years.
The damages could be significant. The lawsuit asks for triple damages under California’s antitrust laws, which means the final amount could be three times the actual overcharges. If the court finds that the companies knowingly broke the law, the damages could be even higher. In addition to financial compensation, the plaintiffs are asking the court to order the companies to stop using the Kalibrate AI tool and to put in place measures to prevent future price-fixing.
For the average California driver, the lawsuit could mean money back in their pocket if it succeeds. But more importantly, it could lead to lower gas prices over the long term by breaking up what the plaintiffs describe as a coordinated pricing scheme. Even if the lawsuit doesn’t result in a large payout for individual drivers, the changes it could bring to how gas stations set prices might save drivers money every time they fill up.
Consumer advocates have been watching the case closely. They say it’s an example of how advanced technology can be used to harm consumers in ways that are hard to detect. The lawsuit shines a light on a practice that many drivers may not have known about: that the prices at different gas stations might be connected by a hidden software system that keeps them high. If the lawsuit succeeds, it could force more transparency in how gas prices are set and discourage other companies from using similar systems.
What Happens Next (Legal Timeline)
The lawsuit was filed on June 22, 2026, in the U.S. District Court for the Eastern District of California in Sacramento. The case has been assigned to a judge, but no hearing dates have been set yet. The first step in the process will be for the court to decide whether to certify the case as a class action. That decision could take several months.
Once the case is certified, the defendants will have to respond to the allegations. They can file a motion to dismiss the lawsuit, arguing that the claims don’t have legal merit. Or they can file an answer to the complaint, contesting the facts. Given the high stakes and the complexity of the case, legal experts expect a long and contentious legal battle.
Discovery, the phase where both sides exchange evidence and take depositions, could take a year or more. During discovery, the plaintiffs’ lawyers will try to access internal company documents and emails about the AI tool. They may also depose executives from Kalibrate and the defendant companies. The companies will try to show that their use of the AI tool was a legitimate business practice that didn’t violate any laws.
If the case survives a motion to dismiss, it could proceed to trial in 2027 or 2028. But like most major class action lawsuits, it could also settle out of court. Settlement talks might begin after the discovery phase, once both sides have a clearer picture of the strengths and weaknesses of their cases. If the companies agree to settle, they could pay a large sum of money to the class members without admitting wrongdoing.
The lawsuit is just one case, but it could have ripple effects across the entire fuel retail industry. If the plaintiffs win, other gas station chains and convenience store operators may think twice about using similar AI pricing tools. State regulators in California and elsewhere may also step up their scrutiny of AI-driven pricing in other industries, from hotels to airlines to e-commerce.
For now, drivers in California are left to keep paying some of the highest gas prices in the nation, while they wait to see whether the courts will force changes to how those prices are set. The lawsuit offers the possibility of relief, but it could take years to get a final result.
Frequently Asked Questions
What is the main accusation in the lawsuit against Walmart, 7-Eleven, and others?
The lawsuit accuses these companies of using artificial intelligence to illegally raise gas prices. Drivers allege that a software tool was used to keep prices artificially high, costing consumers more money.
Which companies are named in the lawsuit?
The lawsuit names BP, 7-Eleven, Walmart, Albertsons, and Marathon as defendants. These companies operate a significant number of gas stations across California.
How did the alleged AI price-fixing work?
The companies allegedly used a software tool from Kalibrate that analyzed data like competitor prices and demand. The lawsuit claims that when multiple competitors used the same system, it pushed prices higher instead of encouraging competition.
What is Assembly Bill 325 and why is it important here?
Assembly Bill 325 is a California law that took effect in 2024 and specifically bans businesses from using computer algorithms to fix prices with competitors. This lawsuit is one of the first major tests of that law.
What are the drivers asking for in the lawsuit?
The drivers are asking the court to order the companies to stop using the AI pricing tool. They also want the companies to pay damages for what they claim was a long-term scheme to overcharge customers.
How do California gas prices compare to the national average?
California already has some of the highest gas prices in the country. At the time the lawsuit was filed, the average price for a gallon of regular gas in the state was $5.56, which was more than $1.60 above the national average.
Have the named companies responded to the lawsuit?
As of the time the article was published, none of the named companies had issued a public statement about the lawsuit. The story was first reported by Bloomberg and then picked up by other news outlets.
References
- Walmart, 7-Eleven, Albertsons, and BP used AI to raise gas prices, lawsuit alleges – Original report (Fast Company)
- Walmart, 7-Eleven, Albertsons, and BP used AI to raise gas prices, lawsuit alleges – Fast Company – Fast Company
- California Drivers Sue Over Alleged AI Gas Price-Fixing – Gadget Review – This source confirmed the lawsuit's focus on AI price-fixing and added a consumer-tech angle.
- BP, Marathon, 7-Eleven, Walmart sued for allegedly using AI to boost California gas prices – Reuters – Reuters provided authoritative confirmation of the key defendants and the legal basis of the suit.
- California drivers sue fuel giants over alleged AI price fixing – MSN – MSN's coverage added context on the scale of the lawsuit and the number of stations involved.
- California Drivers Sue Fuel Giants Over Alleged AI-Driven Gas Price Hikes – PYMNTS.com – PYMNTS.com highlighted the financial and algorithmic aspects of the case, emphasizing the role of Kalibrate's AI tool.
