Vista Energy shares jumped Monday after Peter Thiel's hedge fund disclosed a major position in the Argentine oil producer. The stock, traded as VIST on the New York Stock Exchange, climbed 5.67% to $72.18 as the regulatory filing drew fresh attention to the company. The disclosure also highlighted Thiel Macro's growing exposure to energy and utility companies.

Thiel Macro Reveals $76 Million Vista Energy Stake

Thiel Macro LLC owned nearly 1.2 million Vista Energy American Depositary Shares at the end of June, according to a regulatory filing published Friday. The document is a Form 13F, the quarterly disclosure that U.S. institutional managers overseeing more than $100 million in American-listed equities must file with the Securities and Exchange Commission; it reports holdings as of June 30, so the position may have changed since that date. The stake carried a value of approximately $76 million, making Vista one of the hedge fund's largest disclosed holdings during the second quarter.

The Vista Energy stake ranked behind only Thiel Macro's position in Amazon during the reporting period. The fund owned 495,000 Amazon shares worth roughly $118 million at the end of the quarter, meaning Vista represented a significant portion of Thiel Macro's disclosed public equity portfolio.

Beyond Vista, Thiel Macro added several companies connected to electricity generation, utilities, and energy infrastructure. Those new positions included American Electric Power, DTE Energy, FirstEnergy, CMS Energy, Vistra — a U.S. power producer distinct from Vista Energy — and X-Energy, a developer of small modular nuclear reactors. In total, six of the fund's seven newly disclosed positions came from energy-related businesses. The fund's next quarterly 13F, due within 45 days after each quarter's close, will show whether those energy holdings were maintained, increased, or sold.

Vista Energy Expands Its Vaca Muerta Operations

Vista Energy, S.A.B. de C.V., operates as Argentina's largest independent energy company and concentrates heavily on shale oil production. The company develops resources in Vaca Muerta, a shale formation in the Neuquén Basin that U.S. Energy Information Administration assessments rank among the world's largest shale oil and shale gas resources, and its operations have expanded as Argentina pursues greater oil production and international energy exports. International majors including Chevron, Shell, and TotalEnergies also hold acreage in the same basin, which is one of the country's most important unconventional energy regions.

Vista has invested more than $6.5 billion in Argentina while building out its production capacity and infrastructure, using Vaca Muerta's extensive shale resources to strengthen its position within the country's oil industry. Improved operating conditions have meanwhile drawn increased attention to companies exposed to Argentina's energy sector.

President Javier Milei's government has pushed economic reforms designed to attract foreign capital across several industries. Energy remains central to that strategy, given Argentina's significant oil, natural gas, lithium, and mineral resources. Those policies form an important backdrop to Vista Energy's growing profile among international asset managers.

Peter Thiel Builds Stronger Links With Argentina

Thiel relocated to Buenos Aires with his family earlier this year after moving from the United States. Since arriving in April, he has built closer connections with senior figures inside Milei's administration, and his Vista Energy position now adds a major financial link to Argentina's expanding energy industry.

Thiel has met Economy Minister Luis Caputo and Deregulation Minister Federico Sturzenegger since relocating, and he has also met presidential adviser Santiago Caputo as Milei advances changes across Argentina's economy. Earlier this year, Thiel additionally held discussions with Milei himself during the government's push for foreign investment.

Vista Energy stock gained 5.67% to $72.18 following the disclosure, extending strong intraday momentum. The $76 million position places the oil producer among Thiel Macro's most significant reported equity holdings, and the filing reinforces the fund's broader move toward energy and power companies.