Democratic prosecutors in Hawaii subpoenaed the oil industry’s main trade group for decades of private climate communications with conservative groups and media, critics warn of a free-speech assault.
In June, Democratic prosecutors in Hawaii filed a 55-page subpoena against the American Petroleum Institute, the nation’s largest oil industry trade group, as part of a long-running climate lawsuit by the City and County of Honolulu. The demand reaches far beyond company files. It seeks correspondence with 225 entities, including conservative advocacy groups, think tanks, universities, trade associations, and major newsrooms.
The Washington Free Beacon reported that the subpoena was served on API in Washington, D.C., about two weeks after filing. In late July, prosecutors deposed API’s custodian of records. The order covers records dating back more than 75 years and targets communications “relating to fossil fuel products, climate change topics, global warming, or the greenhouse effect,” along with internal climate documents, studies, finances, and membership rolls.
Honolulu filed the underlying case in 2020 against major oil companies, including Sunoco, BP America, Chevron, ExxonMobil, and Shell. The city claims extreme weather has harmed it and argues the companies kept producing oil and gas for decades while allegedly aware of climate-related dangers. A federal court in Hawaii allowed the case to move into discovery. If such suits succeed, companies could face billions of dollars in damages, and energy executives warn that higher prices would follow for ordinary Americans.
The list of groups whose communications with API are in play is striking. It includes the Heritage Foundation, Americans for Prosperity, Americans for Tax Reform, the Federalist Society, the Hoover Institution, the Manhattan Institute, the Cato Institute, and the Reason Foundation. Also named are the U.S. Chamber of Commerce, the Edison Electric Institute, the Independent Petroleum Association of America, and the American Coal Foundation.
Universities appear too: Columbia University’s Center on Global Energy Policy and Princeton University’s Andlinger Center for Energy and the Environment. So do the Aspen Institute and the Center for Strategic and International Studies. On the media side, the subpoena reaches the New York Times and the Washington Post, including their brand studios. Steve Milloy’s Junk Science site and the Advancement of Sound Science Coalition are listed as well.
API must comply unless it formally objects. Ryan Meyers, API’s senior vice president and general counsel, declined to discuss the subpoena itself. He did address the broader litigation.
"[P]art of a coordinated campaign against an industry that is vital to everyday life and serves as the engine of America's economy."
Meyers added a core federalism point: “Climate policy is a federal, not state issue.”
Dozens of Democratic-led states and cities have pursued identical litigation since Honolulu sued. Mike Fragoso, a partner at the D.C. firm Torridon Law, told reporters the pattern has entered a more aggressive stage.
"For a lot of these cases, the process is the punishment."
Fragoso argued the discovery push now targets speech and association, not just product liability theories. API is an advocacy group whose job is to speak for its members, he said, and global warming remains a contested political issue.
"What they're trying to do is basically set it up so that if you disagree on global warming, you're part of a conspiracy to defraud the people of Hawaii."
He also said the litigation is “doing violence to free speech” and carries “lots of First Amendment implications.” An energy executive whose company is tied to the litigation, speaking anonymously, put it more bluntly: this kind of court-system targeting “should terrify anyone who cares about free speech and the First Amendment.”
Prosecutors lean on a familiar narrative: that the oil industry suppressed climate information and shaped public debate through public-relations work. Steve Milloy, a longtime critic of mainstream climate claims and founder of Junk Science, rejected that account. He pointed to a 1998 New York Times report on meetings involving his former organization and called the gathering “pretty much a nothing meeting.”
Milloy said outsiders misread what occurred. “If you weren't there, you don't know what's going on.” On the broader suppression charge, he was direct.
"In 1965, President Lyndon Johnson had a whole government commission on climate. No one was suppressing anything."
He described the current theory as prosecutors “throwing all this crap against the wall” and said of the alleged conspiracy, “It's really pathetic, none of this ever happened.” He noted the other side claims the industry was “somehow suppressing information,” a charge he flatly denies. The dispute over what the industry knew, said, and withheld is unresolved in the reporting; both the lawsuit’s theory and Milloy’s rebuttal stand as competing claims.
While Hawaii’s discovery fight proceeds, the U.S. Supreme Court was slated to hear oral arguments the Monday after the Free Beacon’s October 5, 2026, report in a similar case out of Boulder County, Colorado. That timing places the Honolulu subpoena inside a national wave of state and local climate suits aimed at the same industry defendants and the same basic liability theory.
Honolulu’s case is already years old. The 2020 filing, the federal green light for discovery, the June subpoena, the D.C. service, and the late-July deposition form a clear sequence: local Democratic prosecutors are using civil discovery to pull private communications across decades and across a wide ideological map. Conservative groups, free-market institutes, industry allies, universities, and major newspapers all sit on the same demand list.
API’s public line remains that climate rules belong in Washington, not in state court damages campaigns. Critics of the suits say the real pressure is the cost and exposure of the process itself, legal fees, document hunts, depositions, and the threat that disagreement on climate policy gets relabeled as fraud against a city’s residents.
Taxpayers and ratepayers do not subpoena anyone. They buy fuel, pay electric bills, and live with the price of energy. When Democratic prosecutors turn a climate docket into a decades-long hunt through private correspondence with think tanks and newspapers, the public should ask whether the goal is compensation for weather or punishment for dissent. Accountability runs both ways.
