Michigan sued BP, Chevron, ExxonMobil, Shell, and the American Petroleum Institute in the U.S. District Court for the Western District of Michigan. It alleges they conspired for decades to suppress renewable energy and electric-vehicle technology, in violation of federal and state antitrust law. On September 22, 2026, the court dismissed the suit for lack of antitrust standing, and Michigan had not announced, as of the ruling, whether it would appeal.
Latest development Sep 16, 2026
On September 16, 2026, the U.S. District Court for the Western District of Michigan issued a decision in the case. The Department of Justice (DOJ) publicly responded with statements from Antitrust Division and Associate Attorney General officials.
Why it matters
The case tests whether a state can use antitrust law to recover energy overcharges it attributes to an alleged oil-industry conspiracy against clean energy. The Department of Justice’s standing and preemption arguments also bear on similar state climate suits, including Boulder v. Suncor and Honolulu’s case.
Background
Michigan Attorney General Dana Nessel announced on May 9, 2024, that the state intended to sue the fossil fuel industry over its role in climate change. In April 2025, the U.S. Department of Justice (DOJ) filed a preemptive suit in the U.S. District Court for the Western District of Michigan. The case, United States v. Michigan (W.D. Mich., No. 1:25-cv-496), sought a declaration that Michigan could not use state law to regulate out-of-state greenhouse gas emissions. On January 24, 2026, Judge Jane M. Beckering dismissed that suit for lack of subject-matter jurisdiction. She found the government’s alleged injuries too speculative to establish standing.
On January 23, 2026, the day before that ruling, Michigan filed its own action in the same court. The complaint, People of the State of Michigan v. BP p.l.c., et al. (No. 1:26-cv-00254), names BP, Chevron, ExxonMobil, Shell, and the American Petroleum Institute. It pleads an antitrust conspiracy, not the consumer-deception theory Nessel had previewed. Its claims arise under Section 1 of the Sherman Antitrust Act, the Clayton Act, and the Michigan Antitrust Reform Act. Michigan alleges the defendants coordinated for decades to suppress renewable energy and electric-vehicle technology to preserve fossil-fuel dominance and inflate energy prices for Michigan consumers.
Judge Paul L. Maroney, originally assigned, recused himself on January 28, 2026, and the case was reassigned to Judge Beckering. The defendants moved to dismiss, arguing that Michigan lacked antitrust standing and had not pleaded proximate cause. The DOJ’s Antitrust Division and Environment and Natural Resources Division filed a statement of interest and, around June 29, 2026, a brief. They argued that Michigan lacked antitrust standing and that federal law governing interstate and global environmental regulation preempted its claims. Michigan opposed the government’s filings, arguing that they mischaracterized its claims.
On September 22, 2026, Judge Beckering dismissed the case for lack of antitrust standing. She held that the causal chain between the alleged conspiracy and the state’s claimed energy overcharges was too attenuated. The next day, Antitrust Division officials and Associate Attorney General Stanley E. Woodward Jr. welcomed the ruling in DOJ statements that called the case an example of climate “lawfare.” As of the ruling, Michigan had not announced whether it would appeal to the U.S. Court of Appeals for the Sixth Circuit.
Timeline 12 events
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OrderGibson Dunn announces dismissal win for Chevron
Gibson, Dunn & Crutcher LLP publicized its representation of Chevron in securing dismissal of Michigan’s antitrust claims.
Gibson Dunn Wins Dismissal of Antitrust Lawsuit Against Chevron
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OtherDOJ publicly applauds dismissal
The Justice Department issued statements from Antitrust Division and Associate Attorney General officials calling the case an example of climate “lawfare.”
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JudgmentCourt dismisses Michigan’s antitrust suit for lack of standing
Judge Beckering ruled Michigan failed to show the alleged oil-industry conspiracy proximately caused the energy overcharges residents paid, dismissing the case on threshold standing grounds.
Michigan Judge Tosses State's Antitrust Suit Against Big OilCourt Nixes Michigan's Novel Antitrust Case Targeting Big OilUS Judge Dismisses Michigan Climate Lawsuit Against Oil Companies
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JudgmentCourt dismisses Michigan’s antitrust suit against oil majors
Judge Beckering ruled Michigan lacked antitrust standing, holding the causal chain between the alleged conspiracy and the state’s claimed overcharges was too attenuated.
Court Nixes Michigan's Novel Antitrust Case Targeting Big Oil
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OrderMichigan disputes DOJ’s characterization of its claims
Michigan asked the court for permission to respond to the Justice Department’s statement of interest, arguing the filing mischaracterized its antitrust suit.
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FilingDOJ files brief backing oil companies
The Justice Department filed a brief with the district court arguing Michigan’s damages claims were not directly caused by the defendants and that its state-law theories were preempted.
US Government Backs Oil Giants in Michigan Antitrust Lawsuit
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OrderJudge Maroney recuses and case is reassigned to Judge Beckering
The originally assigned judge withdrew from the case, citing a potential conflict.
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JudgmentCourt dismisses DOJ’s preemptive suit against Michigan
Judge Beckering dismissed the federal government’s action against Michigan for lack of subject-matter jurisdiction, finding its alleged injuries too speculative to confer standing.
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FilingMichigan sues BP, Chevron, ExxonMobil, Shell, and API
Michigan filed People of the State of Michigan v. BP p.l.c., et al. (No. 1:26-cv-00254) against four oil majors and the American Petroleum Institute (API). It alleges a decades-long antitrust conspiracy to suppress renewable energy and electric-vehicle competition.
Michigan homes in on energy costs, suing oil majors over climate 'conspiracy'
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FilingDefendants move to dismiss Michigan’s antitrust complaint
BP, Chevron, ExxonMobil, Shell and the American Petroleum Institute moved to dismiss the suit, arguing Michigan lacked antitrust standing and failed to plead proximate cause.
Court Nixes Michigan's Novel Antitrust Case Targeting Big Oil
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FilingDOJ sues Michigan to preempt planned climate suit
The United States filed United States v. Michigan (W.D. Mich., No. 1:25-cv-496) seeking a declaration that Michigan could not use state law to regulate out-of-state greenhouse gas emissions.
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OtherNessel announces intent to sue oil industry over climate change
Michigan’s attorney general said she intended to sue fossil-fuel companies over their role in changing the state’s climate, before any complaint was filed.
Nessel plans to sue oil and gas companies over Michigan's changing climate
Experimental AI forecast
How it is madeBy September 30, 2028, will the Sixth Circuit affirm or revive Michigan’s dismissed antitrust suit against BP and the other defendants, or will Michigan drop its challenge?
- Sixth Circuit affirms dismissal43%
- Michigan drops its challenge25%
- Still pending on September 30, 202822%
- Sixth Circuit revives Michigan’s suit8%
- Oil companies settle with Michigan2%
- Resolves by
- Sep 30, 2028in 24 months
- Record confidence
- Medium
The most likely outcome, at 43%, is that the Sixth Circuit affirms the September 22, 2026, dismissal by September 30, 2028. Antitrust standing dismissals based on an attenuated causal chain are rarely reversed. A change in Michigan’s attorney general in January 2027 creates a meaningful chance, 25%, that the state drops its challenge.
How it resolves. Resolves on public court records and official statements as of September 30, 2028. “Sixth Circuit affirms dismissal” if the Sixth Circuit issues a decision upholding the September 22, 2026, dismissal in full. “Sixth Circuit revives Michigan’s suit” if it reverses or vacates the dismissal in whole or in part, reviving any claim. “Michigan drops its challenge” if Michigan files no timely appeal and no amended complaint, or voluntarily dismisses its appeal or case, without a settlement. “Oil companies settle with Michigan” if any settlement with the defendants is publicly announced. “Still pending” if an appeal, rehearing petition, or amended district-court case remains undecided on that date.
Reasoning
Starting point. Federal civil appeals from Rule 12 dismissals, especially antitrust dismissals for lack of antitrust standing or proximate cause: Federal courts of appeals reverse roughly 10% to 15% of appealed private civil judgments. Dismissals on antitrust standing grounds under the Associated General Contractors factors are affirmed at similar or higher rates.
The base rate for reversal of civil judgments in federal appeals is roughly 10% to 15%. Antitrust standing rulings that find an indirect, attenuated injury tend to be affirmed. The theory that a conspiracy against clean energy raised Michigan energy prices involves a long causal chain, and the DOJ’s support for dismissal adds weight. The record does not say whether the dismissal was with prejudice, so an amended complaint remains possible. Contingency counsel and the current attorney general have strong incentives to file a notice of appeal within 30 days. A new attorney general takes office in January 2027 and could choose not to pursue the case, so withdrawal is the leading alternative. If Michigan appeals in fall 2026, briefing and argument would likely conclude in 2027, and a decision should follow by mid-2028. Complex argued appeals can run longer, and rehearing petitions add time, so “still pending” carries 22%. Settlement is remote because the defendants hold a favorable judgment and face precedent risk in similar state climate suits.
Low reversal rates for antitrust standing dismissals on appeal · Attenuated causal chain between alleged conspiracy and overcharges · New Michigan attorney general takes office in January 2027 · Unclear whether dismissal was with or without prejudice · DOJ support for defendants on standing and preemption
Generated automatically by Claude Opus 5.5 on Sep 26, 2026 from this case’s record on this site, and published without editorial review. The probabilities are the model’s judgment, not measured frequencies, and they are scored publicly as cases resolve. Not legal or investment advice. How the forecasts are made