Introduction

In late June 2026, a group of California drivers filed a class‑action lawsuit in federal court in Sacramento. The complaint targets several of the state’s largest gasoline retailers, including BP, Marathon Petroleum, 7‑Eleven, Walmart and Albertsons. The plaintiffs allege that these companies employed a sophisticated artificial‑intelligence (AI) pricing system to artificially raise pump prices, thereby harming consumers and undermining free competition.

Alleged AI Pricing Scheme

The lawsuit identifies a software platform created by the England‑based firm Kalibrate. Kalibrate’s tool gathers real‑time data from competing gas stations and uses AI algorithms to recommend price adjustments that keep all participating retailers at similar, elevated levels. By continuously monitoring each other’s prices, the companies allegedly avoided price competition, a practice the plaintiffs argue amounts to coordinated price fixing.

According to the complaint, the AI system enabled the retailers to “coordinate high prices” in violation of California’s Cartwright Act, the state’s primary antitrust law. It also breaches Assembly Bill 325, a 2024 law that specifically prohibits the use of algorithms to fix prices.

Impact on Consumers

Drivers contend that even a modest increase of one cent per gallon translates into an additional $134 million in annual costs for California motorists. In markets where the Kalibrate tool is widely used, the lawsuit cites price spikes of up to 30 cents per gallon. Some pumps have reportedly reached prices as high as $7 per gallon, far above the national average of $3.93 and California’s own average of $5.58.

The plaintiffs argue that this practice disproportionately harms ordinary consumers who rely on affordable fuel for commuting, work and daily life. They seek unspecified damages for overpayment and request injunctive relief to stop the alleged AI‑driven price manipulation.

Legal Context and Broader Implications

The case sits at the intersection of antitrust law and emerging technology regulation. By targeting an AI‑based pricing tool, the lawsuit raises questions about how traditional competition statutes apply to modern, data‑driven business practices. Legal experts note that the outcome could set a precedent for future enforcement actions against algorithmic collusion in other industries.

Both the defendants and Kalibrate have declined to comment on the allegations, underscoring the contentious nature of the dispute. The lawsuit adds to a growing national conversation about the ethical use of AI in market economics and the need for regulatory frameworks that protect consumers from hidden, technology‑enabled price fixing.

Conclusion

California drivers are pressing the courts to hold major gasoline retailers accountable for allegedly using AI to inflate fuel prices. If successful, the case could reshape how antitrust law addresses algorithmic pricing and reinforce protections for consumers against covert, technology‑driven market abuses.