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 Ibero America. The acquisition better positioned Repsol as a multinational company. Repsol’s acquisition of YPF also increased its capital to 288 million shares worldwide. Repsol's presence in Latin America was one of the keys to corporate growth. It was the first full year after the acquisition of YPF and the consolidation of Gas Natural SDG by global integration. The company's business structure was more balanced and international. Then in December 2001 Repsol completed an asset exchange agreement with Petrobras, making it the second largest consolidated oil company in Brazil. The same year Repsol announced new discoveries in Libya, Indonesia, Spain,