Vista Energy Certifies 66.8 MMboe of Proved Reserves at Acquired Vaca Muerta Blocks
VIST has more than doubled off its 52-week low of $31.63.
Summary
Vista Energy announced independent certification of 66.8 MMboe of proved reserves at its recently acquired Bandurria Sur and Bajo del Toro blocks, bringing pro forma total proved reserves to 654.9 MMboe.
Key Events · M&A and Partnerships · VIST
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66.8 MMboe Proved Reserves Certified
Independent certification by DeGolyer and MacNaughton confirms 66.8 MMboe of proved (P1) reserves at the acquired Bandurria Sur and Bajo del Toro blocks as of December 31, 2025.
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Pro Forma Reserves Rise to 654.9 MMboe
The acquisition adds approximately 11% to Vista's total net proved reserves, bringing the pro forma total to 654.9 MMboe.
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Reserve Breakdown by Block
Bandurria Sur contributes 51.8 MMboe net proved (25.1% working interest) and Bajo del Toro contributes 15.0 MMboe net proved (35.0% working interest).
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Drilling Inventory Expanded
The acquired blocks add 237 remaining well locations (99 at Bandurria Sur, 138 at Bajo del Toro) to Vista's Vaca Muerta drilling inventory.
Analysis · VIST · Energy & Transportation
Independent certification has now quantified the reserve base of the Bandurria Sur and Bajo del Toro blocks acquired from Equinor in May 2026, with 66.8 million barrels of oil equivalent in proved reserves. This first-time disclosure adds roughly 11% to Vista Energy's pro forma total proved reserves of 654.9 MMboe. The certification validates the strategic value of the acquisition and provides investors with a concrete measure of the resource base underpinning future production growth.
How filings like this one have moved
In the 30 days to Sep 10, 2026, 30.1% of the 2014 measured filings Wiseek scored 7 moved their stock by 5% or more by the next session's close. The median move was -0.11%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, VIST was trading at $75.20 on NYSE in the Energy & Transportation sector, with a market capitalization of approximately $8.1B. The 52-week trading range was $31.63 to $81.44. This filing was assessed with positive market sentiment and an importance score of 7 out of 10.