Talks for Saudi state oil giant Aramco to buy a minority stake in Spanish energy firm Repsol's renewables unit have hit an impasse, two sources familiar with the matter told Reuters. The talks over the potential 1 billion euro ($1.2 billion) investment have reached a dead end, and there are no current plans to resurrect them, one of the sources said. The impasse comes as Aramco has been looking to sell some assets, improve efficiency and cut costs. In the past few months, Repsol added production from wind and solar parks in the United States, Chile and Spain. The company is moderating its renewable ambitions to prioritize returns, Repsol's CEO, Josu Jon Imaz, told analysts recently.