Company: VIST
Filing Date: 2025-04-09
Form Type: 20-F
Source: 0001193125-25-076856
Chunk: 78

Company: Vista Energy, S.A.B. de C.V.
Filing Date: 2025-04-09
Form: 20-F
Item: Item 6
Chunk 78
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 Environmental Protection Agency.

Where possible, EFs are derived based on site-specific gas compositional data. In many instances for combustion sources, the CO2EF represents the application of material balance principles and the assumption that 100% of the carbon available in the fuel stream is oxidized to CO2. In addition, for flaring sources; a destruction efficiency of 98% is assumed to calculate the CH4EF.

After GHG emissions inventory tool is completed and results obtained for every calendar year, a third-party verification is carried out. GHG emission inventory results are only published once the verification is completed, and the calculations verified.

Health and Safety Policy

The implementation of additional safety procedures in our operations in consistency with our Health and Safety Policy, such as training, work permits, internal audits, drills, tailgate safety meetings, job safety analysis and risk evaluations, has led to a reduction in the number of workforce safety incidents.

Our safety management system is applied following an Operating Management System (“ OMS”) framework and covers all our employees and contractors working in our offices, fields and providing services. The OMS was designed based on recommended practices for the oil and gas industry and according to IOGP and IPIECA guidelines.

In 2024, our TRIR was 0.59 (based on 6.7 million work hours during the period) as compared to a 0.18 (based on 5.6 million work hours during the period) as of December 31, 2023, and 0.86 (based on 4.6 million work hours during the period) as of December 31, 2022. In 2024, a fatality occurred during a drilling operation conducted by Nabors for Vista. We had no fatalities due to workforce incidents involving Vista employees related to operations in the years ended December 31, 2023 and December 31, 2022.

ESG Matters

We aim to develop our business sustainably. We strive to protect the environment where we operate, with special focus on GHG emissions, water management, energy efficiency and waste management.

Regarding emissions, our goal is to reduce our operating scope 1 and 2 GHG emissions intensity by more than 80%, reaching 7 kgCO2e/boe in 2026, compared to 39 kgCO2e/boe in 2020. Additionally, we are executing a portfolio of NBS projects through our subsidiary Aike in Argentina. By developing a top-tierNBS