Argentina–Spain relations were made declassified and stated that Prime Minister Margaret Thatcher feared that during the Falkland war, Spain would join Argentina by invading Gibraltar. A dispute arose in 2012, when Argentina sought to nationalize the energy company YPF, owned by the Spanish multinational company Repsol. Spain warned against such a move stating that it would harm bilateral relations if such a move were to happen. On 16 April, Argentina's President Cristina Fernández de Kirchner announced the nationalization of YPF, to which Spain warned of a "clear and decisive" response. Since then, Argentina has recompensed the Spanish government and Repsol over the
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