Company: VIST
Filing Date: 2025-04-16
Form Type: 6-K
Source: 0001193125-25-082223
Chunk: 18

Company: Vista Energy, S.A.B. de C.V.
Filing Date: 2025-04-16
Form: 6-K
Chunk 18
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-drill wells (at 50% working interest) in the core of Vaca Muerta, and geographically located adjacent to Vista’s development hub.

Moreover, Vista expects to incorporate operational synergies, based on the proximity of LACh to Vista’s development hub, which could
translate into potential savings related to shared use of surface facilities, optimization of well locations near the boundaries between LACh and Vista’s development hub, improvements in the design of new wells and shared use of general
services.

Likewise, the Transaction implies a significant increase in Vista’s crude oil transportation and dispatch capacity, given
that PEPASA has approximately 57,000 bbl/d of crude oil transportation capacity and 48,000 bbl/d of crude oil export dispatch capacity in various midstream projects.

For further information and details on the Transaction, please refer to the “INFORMATION REGARDING THE TRANSACTION” and
“RELEVANT AGREEMENTS” sections of this disclosure document.

Brief Description of the Parties Involved in the Transaction

Vista Argentina

Vista Argentina, a
subsidiary of Vista, is an Argentine company engaged in the exploration and production of hydrocarbons and the commercialization of oil, natural gas and NGL. As of December 31, 2024, Vista Argentina had 488 direct employees.

Vista Argentina is a sole single-member corporation (sociedad anónima unipersonal) incorporated under the laws of Argentina.
Vista Argentina’s sole shareholder is Vista Energy Holding I S.A. de C.V.

13

Vista Argentina is a subsidiary of Vista, a publicly traded company incorporated under the
laws of the United Mexican States. Vista is an independent oil and gas company in Latin America that began operations on April 4, 2018. Its principal assets are located in Vaca Muerta, the most important commercial shale oil and gas formation
outside North America, where, prior to the Transaction, the Company held exploitation concessions covering approximately 205,600 net acres.

Petronas E&P Argentina S.A.

PEPASA is an Argentine company that was incorporated on December 3, 2014, engaged in the exploration and
production of hydrocarbons and the commercialization of oil, natural gas and NGL.

PEPASA holds the
non-operated 50% of the unconventional hydrocarbon exploitation concession granted over the LACh block. As concessionaire, PEPASA has the right to dispose of the production coming from LACh for which it has
crude