YPF unit assigns 20% Neuquén JV stake to Pluspetrol

YPF, via its Vaca Muerta subsidiary, closed the sale of a 20% JV stake in La Escalonada and Rincón La Ceniza to Pluspetrol, leaving it with 25%.

Rhea-AI Filing Summary

YPF Sociedad Anónima (YPF), through its wholly controlled subsidiary Vaca Muerta Inversiones S.A. (VMI), reports the closing of a previously announced transaction with Pluspetrol S.A. on September 14, 2026, after the satisfaction of conditions precedent.

VMI assigned to Pluspetrol S.A. a 20% interest in the Temporary Joint Venture (Unión Transitoria) contracts for the “La Escalonada” and “Rincón La Ceniza” areas in the Province of Neuquén, together with the related joint operating agreements. Following this assignment, VMI’s interest in these contracts is 25%.

Key Figures

Interest assigned in JV contracts: 20% VMI interest after assignment: 25% Closing date of transaction: September 14, 2026

3 metrics

Interest assigned in JV contracts 20% Interest in Temporary Joint Venture contracts for La Escalonada and Rincón La Ceniza assigned by VMI to Pluspetrol S.A.

VMI interest after assignment 25% Remaining Vaca Muerta Inversiones S.A. interest in the same JV contracts after the transaction

Closing date of transaction September 14, 2026 Date on which conditions precedent were satisfied and the transaction closed

Key Terms

Temporary Joint Venture (Unión Transitoria), conditions precedent, joint operating agreements, Material Event

4 terms

Temporary Joint Venture (Unión Transitoria) financial

"a 20% interest in the Temporary Joint Venture (Unión Transitoria) contracts"

conditions precedent regulatory

"upon satisfaction of the conditions precedent, the closing of the transaction took place"

Conditions precedent are the specific tasks, approvals, or facts that must be satisfied before a contract or transaction becomes effective or a payment is made. Think of them as a checklist you must complete before turning the key on a new machine; if items are missing the deal can be delayed, renegotiated, or canceled. Investors watch these conditions because they determine timing, completion risk, and whether expected benefits will actually occur.

joint operating agreements financial

"and the corresponding joint operating agreements (the “Contracts”)"

Material Event regulatory

"Ref.: Material Event. Agreement between YPF S.A. and Pluspetrol S.A."

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What transaction did YPF (YPF) report in its September 2026 Form 6-K?

YPF reported that its 100%-controlled subsidiary Vaca Muerta Inversiones S.A. closed a transaction assigning a 20% interest in Temporary Joint Venture contracts for the La Escalonada and Rincón La Ceniza areas in Neuquén to Pluspetrol S.A., together with the related joint operating agreements.

When was the YPF (YPF) transaction with Pluspetrol S.A. closed?

The transaction between Vaca Muerta Inversiones S.A., a subsidiary of YPF, and Pluspetrol S.A. was closed on September 14, 2026, after the satisfaction of the conditions precedent described in earlier communications.

What interest did YPF’s subsidiary VMI assign in the JV contracts according to the 6-K?

Vaca Muerta Inversiones S.A., a company 100% controlled by YPF, assigned a 20% interest in the Temporary Joint Venture (Unión Transitoria) contracts for the La Escalonada and Rincón La Ceniza areas, along with the corresponding joint operating agreements, to Pluspetrol S.A.

What is Vaca Muerta Inversiones S.A.’s remaining interest after the YPF-Pluspetrol deal?

After assigning a 20% interest in the Temporary Joint Venture contracts to Pluspetrol S.A., Vaca Muerta Inversiones S.A.’s interest in those contracts is 25%, as stated in the disclosure to the Argentine Securities Commission.

Which assets are affected by YPF’s transaction with Pluspetrol S.A.?

The transaction affects YPF’s indirect interests in the Temporary Joint Venture contracts and joint operating agreements for the “La Escalonada” and “Rincón La Ceniza” areas located in the Province of Neuquén, Argentina.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/15/2026 - 06:04 AM Accepted by SEC EDGAR 09/14/2026 - 07:00 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13A-16 OR 15D-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of September 2026

Commission File Number: 001-12102

YPF Sociedad Anónima

(Exact name of registrant as specified in its charter)

Macacha Güemes 515

C1106BKK Buenos Aires, Argentina

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F ☒ Form 40-F ☐

YPF Sociedad Anónima

TABLE OF CONTENT

ITEM 1 Translation of letter to the Argentine Securities Commission (Comisión Nacional de Valores) dated September 14, 2026.

Buenos Aires, September 14, 2026.

COMISIÓN NACIONAL DE VALORES (“CNV”)

25 de Mayo 175

Buenos Aires

BOLSAS Y MERCADOS ARGENTINOS S.A. (“ByMA”)

Sarmiento 299

Buenos Aires

A3 MERCADOS S.A. (“A3 Mercados”)

Maipú 1210

Buenos Aires

Ref.: Material Event. Agreement between YPF S.A. and Pluspetrol S.A. - Closing

Ladies and Gentlemen,

We are writing to you in order to comply with the CNV Rules and the corresponding regulations of ByMA and A3 Mercados.

In this regard, and continuing with our communications dated January 22 and April 30 of this year, we hereby inform you that on today’s date, September 14, 2026, upon satisfaction of the conditions precedent, the closing of the transaction took place whereby Vaca Muerta Inversiones S.A. (“VMI”, a company 100% controlled by YPF) assigned to Pluspetrol S.A. a 20% interest in the Temporary Joint Venture (Unión Transitoria) contracts for the “La Escalonada” and “Rincón La Ceniza” Areas (Province of Neuquén), and the corresponding joint operating agreements (the “Contracts”). As a result of this assignment, VMI’s interest in the Contracts will be 25%.

Sincerely,

Margarita Chun

Market Relations Officer

YPF S.A.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		YPF Sociedad Anónima
Date: September 14, 2026		By:		/s/ Margarita Chun
		Name:		Margarita Chun
		Title:		Market Relations Officer