Company: VIST
Filing Date: 2025-04-16
Form Type: 6-K
Source: 0001193125-25-082223
Chunk: 64

Company: Vista Energy, S.A.B. de C.V.
Filing Date: 2025-04-16
Form: 6-K
Chunk 64
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Vista Energy, S.A.B. de C.V.

We have concluded our assurance
commitment to report on the compilation of Vista Energy, S.A.B. de C.V.’s (the “Company” or “Vista”) prepared by its management. Pro forma financial information includes unaudited pro forma consolidated statements of
financial position as of December 31, 2024; and the unaudited pro forma consolidated income statements and other comprehensive results, for the year ended December 31, 2024, as well as the corresponding notes to be presented in the
Disclosure Document; in connection with the agreement signed by the Company, through its subsidiary Vista Argentina S.A.U. (“Vista Argentina”) consisting of the acquisition of 100% of the capital stock of an Argentine oil and gas company
called Petronas E&P Argentina S.A. (“PEPASA”), pursuant to the terms and conditions set forth in the Sale and Purchase Agreement, as well as under other contracts of the Transaction. The applicable criteria on the basis of which the
Company has compiled the proforma financial information are specified in the General Provisions Applicable to Issuers of Securities and other Participants in the Securities Market (the “Single Issuer Circular”), and are described in the
notes to the proforma financial information to be included in the Disclosure Document.

The pro forma financial information has been compiled by the
Company’s management to show the impact of the aforementioned acquisition, on the Company’s pro forma financial position as of December 31, 2024 and the pro forma consolidated income statements and other comprehensive results for the
years ended December 31, 2024, as if the purchase had been made on December 31, 2024, for purposes of the proforma consolidated statement of financial position and on January 1, 2024, for the purposes of the proforma consolidated
statement of income and other comprehensive income.

Liability of the Administration for Pro Forma Financial Information

Vista Energy, S.A.B. de C.V.’s management is responsible for compiling the pro forma financial information in accordance with the criteria set forth in
the Circular Única de Emisoras.

Our Independence Quality Control

We have complied with the independence and other ethical requirements of the Code of Ethics for Professional Accountants issued by the International Ethics
Standards Board for Accountants along with the ethics requirements that are applicable to our audit of financial statements in Mexico by the “Code of Professional Ethics of the Mexican Institute of