Axel Kicillof headed by Hernán Lorenzino. After that, on November 18, 2013, Kicillof officially became Minister of Economy. Kicillof was instrumental in the renationalization of YPF. President Cristina Fernández de Kirchner named Kicillof to the post of Secretary (or Deputy Minister) for Economic Policy and Development Planning in December 2011. He took academic leave to assume this post. In this position, Kicillof oversaw the controversial 2012 nationalization of YPF, the Argentine oil company then controlled by the Spanish energy firm Repsol. It was the largest expropriation in Argentina's history. He justified this action as part of a needed reversal of the Argentinian
Repsol energy company of the year". In December 2014 Repsol announced that it would buy Canadian oil company Talisman Energy in a transaction worth about $15.1 billion Cdn ($13 billion US). In 1971 Repsol logo first appears, as REPESA (Refinería de Petróleos de Escombreras S.A.) brand product, during the motorcycle Derby of that year. Its name derives from the founding company REPESA for its visibility and easy pronunciation in different languages. In 1991, the Instituto Nacional de Hidrocarbonos (INH), before the imminent demise of the state oil monopoly, set the objective to create a company of mixed public-private capital, which exploded