No. 26-442
 
Title: Petersen Energia Inversora, S.A.U., et al., Petitioners
v.
Argentine Republic, et al.
Docketed: October 2, 2026
Linked with: 26A204
Lower Ct: United States Court of Appeals for the Second Circuit
   Case Numbers: (23-7370, 23-7463, 23-7614, 23-7376, 23-7471, 23-7667)
   Decision Date: March 27, 2026
   Rehearing Denied: June 2, 2026
 
Proceedings and Orders
Aug 11 2026 Application (26A204) to extend the time to file a petition for a writ of certiorari from August 31, 2026 to September 30, 2026, submitted to Justice Sotomayor.
Main Document Lower Court Orders/Opinions Lower Court Orders/Opinions Other Proof of Service
Aug 17 2026 Application (26A204) granted by Justice Sotomayor extending the time to file until September 30, 2026.
Sep 30 2026 Petition for a writ of certiorari filed. (Response due November 2, 2026)
Petition Certificate of Word Count Proof of Service
Oct 20 2026 Brief amicus curiae of Republican Action for Argentina Inc. filed.
Main Document Certificate of Word Count Proof of Service
Oct 21 2026 Motion of the Argentine Republic to extend the time to file a response from November 2, 2026 to December 2, 2026, submitted to The Clerk.
Main Document
Oct 21 2026 Motion of YPF S.A. to extend the time to file a response from November 2, 2026 to December 2, 2026, submitted to The Clerk.
Main Document
Oct 22 2026 The motions to extend the time to file responses are granted and the time is extended to and including December 2, 2026, for all respondents.
Oct 30 2026 Brief amici curiae of Missouri, et al. filed.
Main Document Certificate of Word Count Proof of Service
Nov 02 2026 Brief amicus curiae of Professor William Dodge filed.
Main Document Certificate of Word Count Proof of Service
Nov 02 2026 Brief amicus curiae of Unleash Prosperity filed.
Main Document Certificate of Word Count Proof of Service
Nov 02 2026 Brief amicus curiae of Professor Kevin M. Clermont filed.
Main Document Certificate of Word Count Proof of Service
Nov 02 2026 Brief amicus curiae of U.S. Senator Eric Schmitt filed.
Main Document Certificate of Word Count Proof of Service
Nov 02 2026 Brief amici curiae of Investment Professionals filed.
Main Document Certificate of Word Count Proof of Service
Nov 02 2026 Brief amici curiae of Former Virginia Attorney General Jason Miyares, et al filed.
Main Document Certificate of Word Count Proof of Service
Nov 02 2026 Brief amicus curiae of Heartland Institute filed.
Main Document Certificate of Word Count Proof of Service
Nov 02 2026 Brief amicus curiae of Competitive Enterprise Institute filed.
Main Document Certificate of Word Count Proof of Service
Attorneys
Attorneys for Petitioners
Paul D. Clement
Counsel of Record
Clement & Murphy, PLLC
706 Duke Street
Alexandria, VA 22314

PAUL.CLEMENT@CLEMENTMURPHY.COM
Ph: (202) 742-8900
Party name: Petersen Energia Inversora, S.A.U., et al.


Attorneys for Respondents
Robert J. Giuffra Jr.
Counsel of Record
Sullivan & Cromwell
125 Broad Street
New York, NY 10004

giuffrar@sullcrom.com
Ph: 212-558-3121
Party name: Argentine Republic, et al.


Mark Goodman
Counsel of Record
Debevoise & Plimpton LLP
66 Hudson Boulevard
New York, NY 10001

mpgoodman@debevoise.com
Ph: (212) 909-6000
Party name: YPF S.A.


Other Attorneys
Louis Joseph Capozzi III
Counsel of Record
Missouri Attorney General
815 Olive Street Suite 200
St Louis, MO 63101

Louis.Capozzi@ago.mo.gov
Ph: (573) 645-9662
Party name: State of Missouri, et al.


Steven Keith Davidson
Counsel of Record
Steptoe LLP
1330 Connecticut Avenue, NW
Washington, DC 20036

sdavidson@steptoe.com
Ph: 202-429-3000
Party name: Professor Kevin M. Clermont


Denise Lambert Drake
Counsel of Record
Gibbs & Bruns LLP
1100 Louisiana Street
Suite 5300
Houston, TX 77002

ddrake@gibbsbruns.com
Ph: 713-650-8805
Party name: Professor William Dodge


Jeffrey Matthew Harris
Counsel of Record
Consovoy McCarthy PLLC
2107 Wilson Boulevard
Suite 725
Arlington, VA 22201

JEFF@CONSOVOYMCCARTHY.COM
Ph: (703) 243-9423
Party name: Heartland Institute


Fernando Gabriel Irazu
Counsel of Record
Republican Action for Argentina Ic.
Avenida Córdoba 1412, 4th Floor
Buenos Aires, Argentina, XX 1055

fgirazu@gmail.com
Ph: +5411 3084-8080
Party name: Republican Action for Argentina Inc.


Christopher E. Mills
Counsel of Record
Spero Law LLC
557 East Bay Street #22251
Charleston, SC 29413

cmills@spero.law
Ph: 8436060640
Party name: Competitive Enterprise Institute


Aaron Lloyd Nielson
Counsel of Record
University of Texas School of Law
727 E. Dean Keeton Street
Austin, TX 78705

aaron.nielson@law.utexas.edu
Ph: (512) 475-5151
Party name: U.S. Senator Eric Schmitt


Steven Moffat Shepard
Counsel of Record
Susman Godfrey L.L.P
One Manhattan West, Floor 50
395 Ninth Avenue
New York, NY 10001

SSHEPARD@SUSMANGODFREY.COM
Ph: 2127292010
Party name: Investment Professionals


David H. Thompson
Counsel of Record
Cooper & Kirk, PLLC
1523 New Hampshire Avenue, N.W.
Washington, DC 20036

DTHOMPSON@COOPERKIRK.COM
Ph: 202-220-9600
Party name: Former Attorney General Jason Miyares and the American Free Enterprise Chamber of Commerce


Katherine Crawford Yarger
Counsel of Record
Lehotsky Cohn LLP
700 Colorado Blvd. #407
Denver, CO 80206

katie@lehotskycohn.com
Ph: 512-693-8350
Party name: Unleash Prosperity