VISTA TO HOST VIRTUAL INVESTOR DAY ON NOVEMBER 12, 2025

Group 1 - Vista Energy will host a virtual investor day on November 12, 2025, at 9:00 a.m. ET to update on its Strategic Plan aimed at delivering industry-leading growth and superior total shareholder returns [1] - The event is open to institutional investors and sell-side analysts, with registration available at www.vistainvestorday.com [2] - A webcast replay and slide presentation will be accessible after the event [2] Group 2 - Vista Energy is the largest independent producer and oil exporter in Argentina, focusing on the Vaca Muerta shale oil and gas play [2] - The company's strategy includes developing a high-return shale oil drilling inventory of up to 1,200 ready-to-drill wells across more than 229,000 acres in Vaca Muerta, emphasizing cost efficiency and lower carbon intensity production [2]