Argentina, June 30 -- Eni signed the Sale and Purchase Agreement (SPA) for the acquisition of a 32% interest in three upstream blocks (Meseta Buena Esperanza, Aguada Villanueva, and Las Tacanas), which are part of the unconventional Vaca Muerta basin, in Argentina.Following the completion of the transaction, which remains subject to approval by the relevant authorities, participation in the three upstream blocks will be held by YPF with 36%, Eni with 32%, and XRG with 32%.The three blocks will be part of the Argentina LNG integrated development, an upstream-midstream project aimed at leveraging the Vaca Muerta gas resources, helping to strengthen the country's position as a global LNG supplier in the long term. These assets' resources will ...