Exxon’s lawsuit is the first major test of California’s bold climate disclosure mandates. According to Reuters, Exxon Mobil sued the state on Oct. 25, 2025, “challenging two state laws that require large companies to publicly disclose their greenhouse gas emissions and climate-related financial risks”reuters.com. The lawsuit names California and its air‐resources board, and asks a federal court to block both SB 253 and SB 261 from taking effect. Exxon’s complaint argues that the laws compel speech: “the First Amendment bars California from pursuing a policy of stigmatization by forcing Exxon Mobil to describe its non-California business activities using the State’s preferred framing,” the company writesreuters.com. In plain English, Exxon says the bills would force it to use California’s climate‐change vocabulary and to make disclosures it finds misleading. As Reuters summarizes: the complaint asserts SB 253 and SB 261 would force Exxon “to serve as a mouthpiece” for ideas it does not agree withenergynews.oedigital.com. Exxon points out that it already publishes its emissions and climate risks voluntarily, and that California’s new frameworks “place disproportionate blame on large companies like ExxonMobil” simply for being largetimesunion.comenergynews.oedigital.com.
