No. 25-170
Suncor Energy (U.S.A.) Inc., et al. v. County Commissioners of Boulder County, et al.
Tags: climate-change federal-law greenhouse-gas-emissions international-emissions interstate-emissions state-law-claims
Latest Conference:
2026-02-20
(distributed 6 times)
Question Presented (from Petition)
Whether federal law precludes state-law claims seeking relief for injuries allegedly caused by the effects of interstate and international greenhouse-gas emissions on the global climate.
Question Presented (AI Summary)
Whether federal law precludes state-law claims seeking relief for injuries allegedly caused by the effects of interstate and international greenhouse-gas emissions on the global climate
Docket Entries
2026-03-11
Motion to extend the time to file the briefs on the merits granted. The time to file the joint appendix and petitioners' brief on the merits is extended to and including May 14, 2026. The time to file respondents' brief on the merits is extended to and including July 27, 2026.
2026-02-27
Motion for an extension of time to file the briefs on the merits filed.
2026-02-27
Motion of Suncor Energy (U.S.A.) Inc., et al. for an extension of time submitted.
2026-02-23
Petition GRANTED. In addition to the question presented by the petition, the parties are directed to brief and argue the following question: Whether this Court has statutory and Article III jurisdiction to hear this case.
2026-02-13
DISTRIBUTED for Conference of 2/20/2026.
2026-01-20
DISTRIBUTED for Conference of 1/23/2026.
2026-01-12
DISTRIBUTED for Conference of 1/16/2026.
2026-01-05
DISTRIBUTED for Conference of 1/9/2026.
2025-11-25
Reply of petitioners Suncor Energy (U.S.A.) Inc., et al. filed. (Distributed)
2025-11-25
Reply of Suncor Energy (U.S.A.) Inc., et al. submitted.
2025-11-25
DISTRIBUTED for Conference of 12/12/2025.
2025-11-10
Brief of respondents County Commissioners of Boulder County, et al. in opposition filed.
2025-11-10
Brief of Cty. Comm'rs of Boulder Cty., et al. in opposition submitted.
2025-10-09
Brief amicus curiae of Chamber of Commerce of the United States of America filed.
2025-10-09
Brief amicus curiae of National Association of Manufacturers filed.
2025-10-09
Brief amicus curiae of The Chamber of Commerce of the United States of America filed.
2025-10-09
Brief amicus curiae of The National Association of Manufacturers filed.
2025-10-09
Brief amici curiae of House Majority Leader Steve Scalise, et al. filed.
2025-10-09
Brief amicus curiae of Professor Jason Johnston filed.
2025-10-09
Amicus brief of Professor Jason Johnston submitted.
2025-10-09
Amicus brief of House Majority Leader Steve Scalise and 102 Other Members of Congress submitted.
2025-10-09
Amicus brief of The Chamber of Commerce of the United States of America submitted.
2025-10-09
Amicus brief of The National Association of Manufacturers submitted.
2025-09-26
Brief amici curiae of Alabama, et al. filed.
2025-09-26
Amicus brief of State of Alabama and 25 Other States submitted.
2025-09-25
Motion to extend the time to file a response is granted and the time is extended to and including November 10, 2025.
2025-09-24
Motion to extend the time to file a response from October 9, 2025 to November 10, 2025, submitted to The Clerk.
2025-09-24
Motion of Cty. Comm'rs of Boulder Cty., et al. for an extension of time submitted.
2025-09-15
Brief amicus curiae of American Petroleum Institute filed.
2025-09-15
Amicus brief of American Petroleum Institute submitted.
2025-09-12
Amicus brief of American Tort Reform Association submitted.
2025-09-12
Brief amicus curiae of American Tort Reform Association filed.
2025-09-11
Brief amici curiae of Professor Richard Epstein, et al. filed.
2025-09-11
Amicus brief of Atlantic Legal Foundation, Washington Legal Foundation, and Federation of Defense & Corporate Counsel submitted.
2025-09-11
Amicus brief of Frontier Institute, Independence Institute, Pelican Institute, and Manhattan Institute submitted.
2025-09-11
Amicus brief of Professor Richard Epstein and Professor John Yoo submitted.
2025-09-11
Amicus brief of United States submitted.
2025-09-11
Brief amici curiae of Frontier Institute, et al. filed.
2025-09-11
Brief amicus curiae of United States filed.
2025-09-11
Brief amici curiae of Atlantic Legal Foundation, et al. filed.
2025-09-09
Response Requested. (Due October 9, 2025)
2025-09-05
Brief amici curiae of General (Retired) Richard B. Myers, et al. filed.
2025-09-05
Amicus brief of General (Retired) Richard B. Myers and Admiral (Retired) Michael G. Mullen submitted.
2025-09-04
Letter received from Suncor Energy (U.S.A.) Inc., et al.
2025-09-04
Letter of Suncor Energy (U.S.A.) Inc., et al. submitted.
2025-09-03
DISTRIBUTED for Conference of 9/29/2025.
2025-08-28
Waiver of right of respondent Cty. Comm'rs of Boulder Cty., et al. to respond filed.
2025-08-08
Petition for a writ of certiorari filed. (Response due September 11, 2025)
Attorneys
American Petroleum Institute
Mark Andrew Perry — Weil, Gotshal & Manges, LLP, Amicus
American Tort Reform Association
Cary Silverman — Shook, Hardy and Bacon LLP, Amicus
Atlantic Legal Foundation, Washington Legal Foundation, and Federation of Defense & Corporate Counsel
Lawrence S. Ebner — Atlantic Legal Foundation, Amicus
Cty. Comm'rs of Boulder Cty., et al.
Kevin K. Russell — Russell & Woofter LLC, Respondent
Marco Benjamin Simons — Law Office of Marco B. Simons, Respondent
Frontier Institute, Independence Institute, Pelican Institute, and Manhattan Institute
Ilya Shapiro — Manhattan Institute, Amicus
General (Retired) Richard B. Myers and Admiral (Retired) Michael G. Mullen
Tristan L. Duncan — Shook, Hardy & Bacon, Amicus
House Majority Leader Steve Scalise and 102 Other Members of Congress
Jared Michael Kelson — Boyden Gray PLLC, Amicus
Professor Jason Johnston
Ryan Joseph Walsh — Eimer Stahl LLP, Amicus
Professor Richard Epstein and Professor John Yoo
State of Alabama and 25 Other States
Suncor Energy (U.S.A.) Inc., et al.
The Chamber of Commerce of the United States of America
William McGinley Jay — Goodwin Procter LLP, Amicus
The National Association of Manufacturers
Philip S. Goldberg — Shook Hardy & Bacon LLP, Amicus
United States
Curtis E. Gannon — Deputy Solicitor General, Amicus
Sarah Michelle Harris — Department of Justice, Amicus