Argentina's President-elect Javier Milei selected a senior energy executive to lead state oil company YPF on Wednesday, his spokesperson announced, in one of the leader's first major economic decisions after his triumph at the polls last weekend. Horacio Marin heads exploration and production for Tecpetrol, which runs the Fortin de Piedra oil and gas field within Argentina's prolific Vaca Muerta shale formation, one of the world's largest. Milei's press team distributed a photo of Marin on Wednesday, seated at a table along with other members of the transition team.