Repsol takes first step to legal action over Argentina's seizure of YPF The move comes after Argentina took a 51pc controlling stake in YPF last month, with President Cristina Fernandez claiming that Repsol had not invested enough money in the assets. Repsol denies the claim, saying $20bn had been poured into YPF. On May 1, Bolivia's leftist President Evo Morales ordered the army to take over the Cochabamba headquarters of power transmission firm Empresa Transportadora de Electricidad, a unit of Spain's Red Electrica Espanola. "We will soon be moving forward with a response to Argentina's action in the Repsol case," Mr De Gucht said, though he did not say what action he was planning. Repsol is seeking $9.3bn (£7.4bn) for the seized stake. However, Argentina has said it has reasons not to pay Repsol the full amount the Spanish group wants. A six-month period must pass before Repsol can present its case before the ICSID, a company spokesman has said.