Company: VIST
Filing Date: 2025-04-09
Form Type: 20-F
Source: 0001193125-25-076856
Chunk: 64

Company: Vista Energy, S.A.B. de C.V.
Filing Date: 2025-04-09
Form: 20-F
Item: Item 6
Chunk 64
---
Directors, Senior Management and Employees

-

Executive Team

.”

In order to ensure the quality and consistency of our reserves estimates and reserves disclosures, we maintain and comply with a reserves process that satisfies the following key control objectives:

  estimates are prepared using generally accepted practices and methodologies;  

  estimates are prepared objectively and free of bias;  

  estimates and changes therein are prepared on a timely basis;  
 ─────────────────────────────────────────────────────────────────

  estimates and changes therein are properly supported and approved; and  
 ──────────────────────────────────────────────────────────────────────────

  estimates and related disclosures are prepared in accordance with regulatory requirements.  

Throughout each fiscal year, our technical team meets with Independent Qualified Reserves Engineers, who are provided with full access to complete and accurate information pertaining to the properties to be evaluated and all applicable personnel. This independent assessment of the internally-generated reserves estimates is beneficial in ensuring that interpretations and judgments are reasonable and that the estimates are free of preparer and management bias.

Recognizing that reserves estimates are based on interpretations and judgments, there might be differences between the proved reserves estimates prepared by us and those prepared by an Independent Qualified Reserves Engineer. Although such differences were discussed in the technical meetings, the reports include figures estimated by our Independent Qualified Reserves Engineer. Once the process is finished, the Independent Qualified Reserves Engineer sends a preliminary copy of the reserves report to members of our senior management, who act as a Reserves Review Committee. Our Chief Operations Officer, Chief Technology Officer, Chief Executive Officer, Chief Financial Officer and Investor Relation and Strategic Planning Officer are part of this committee.

Independent Reserves Engineer Consultants

The 2024 reserves estimates of the assets we own in Argentina and Mexico were certified by D& M, a global oil and gas consultancy that has been offering technical, commercial, and strategic advice to the oil and gas industry since 1936. Vista asked D& M to prepare the 2024 Reserves Report which was issued on January 27, 2025, covering reserves as of December 31, 2024, of the assets we own in Argentina and Mexico. For the year ended December 31, 2024, the technical person within the third-party engineering firm overseeing the preparation of the reserves estimates presented in our filing for Argentina and Mexico was Mr. Federico Dordoni. For disclosure describing the qualifications of D& M’s technical person primarily responsible for overseeing our reserves evaluation, see Exhibit 99.1 to this annual report.

Technology Used in Reserves Est