Company: VIST
Filing Date: 2025-04-16
Form Type: 6-K
Source: 0001193125-25-082223
Chunk: 12

Company: Vista Energy, S.A.B. de C.V.
Filing Date: 2025-04-16
Form: 6-K
Chunk 12
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 Detailed Description of the Transaction” section of this disclosure document.

“Purchasers” means Vista and Vista Argentina jointly in relation to the
Sale and Purchase Agreement.

“Q” stands for quarter. The expressions 1Q or Q1 refer to the first quarter of a given year, and are
equivalent to the Spanish expressions 1T or T1, and the same applies to the second, third or fourth quarters of any year (2Q, 3Q, 4Q, etc.).

“ROACE” has the meaning assigned to such term in the “PRESENTATION OF FINANCIAL AND OTHER INFORMATION” section of this
disclosure document.

“RNV” means the National Securities Registry held by CNBV.

“Sale and Purchase Agreement” means the Sale and Purchase Agreement of the PEPASA Shares entered into by the Purchasers and Sellers dated
April 15, 2025.

“SEC” Means the U.S. Securities and Exchange Commission of the United States.

“Sellers” means PCI and PCC jointly in relation to the Sale and Purchase Agreement.

“Series A Shares” or “Shares” means our common stock, Series A, without expression of par value.

“Shale” means “shale rock,” which is a sedimentary formation that could contain oil and/or natural gas reservoirs.

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“Shell” means Royal Dutch Shell plc.

“Transaction Financing” has the meaning assigned to such term in the “INFORMATION REGARDING THE TRANSACTION – Sources of Financing and Operating Expenses” section of this disclosure document.

“Transaction” has the meaning assigned to such term in
the “INFORMATION REGARDING THE TRANSACTION – Detailed Description of the Transaction” section of this disclosure document.

“TRIR” means Total Recordable Injury Rate, calculated as the number of recorded incidents multiplied by 1,000,000 and divided by the total
number of hours worked.

“United States” means the United States of America.

“Vaca Muerta Oleoducto Centro” means the Vaca Muerta Oleoducto Sur pipeline, Section I operated by YPF, which will extend from Loma Campana
to Allen and will be operated by YPF. As of the date of issuance of this disclosure document, Vaca Muerta Oleoducto Centro is under construction, which will be carried out in two phases: “Phase I,” which will extend from the date of start
of operations through Phase II, and ‘Phase II’ will take place once the works to