Vista Energy, S.A.B. de C.V. announced on February 19, 2026, that Shell Argentina has waived its right of first refusal on a 30% working interest, paving the way for Vista to finalize its acquisition of a 25.1% interest in the Bandurria Sur block and a 35% interest in the Bajo del Toro block. This deal is still pending antitrust approval from Chilean authorities, expected to close by Q2 2026.