Vista Energy (VISTAA) investor relations material

Key value drivers and operational highlights

• Holds 1,492 ready-to-drill locations in Vaca Muerta, with 462 wells on production and 588.1 MMboe proved reserves at YE-25 (89% oil).

• Q2-26 production reached 156.1 Mboe/d, with 72% of oil sales exported at export parity and a lifting cost of $4.5/boe.

• Maintains a robust balance sheet with $605 MM in cash and a net leverage ratio of 1.41x (1.25x pro forma).

• Adj. EBITDA for LTM was $2,172 MM, with a 67% margin at a $68.8/bbl realized oil price.

Profitable growth and value generation

• Production grew 6.4x since 2018, driven by shale oil projects, reaching 156.1 Mboe/d in Q2-26.

• Proved reserves increased 10.2x to 588 MMboe at YE-25, with a 605% reserves replacement ratio in 2025.

• Lifting costs reduced by 68% since 2018, now at $4.5/boe.

• Adj. EBITDA margin reached 67% LTM, with a ROACE of 29%.

Strategic acquisitions and portfolio enhancement

• Acquired 25.1% WI in Bandurria Sur and 35% WI in Bajo del Toro from Equinor in May 2026, adding 54 MMboe P1 reserves.

• Pro forma 2025 Adj. EBITDA rises to $1,865 MM, with 1,520 remaining well inventory.

• Acquisition brings additional oil midstream capacity and operating synergies.