U.S. buyout firm Carlyle Group has agreed to buy between 30 and 40 percent of Spanish energy company Cepsa from Abu Dhabi state investor Mubadala, valuing the stake at as much as $4.8 billion. The transaction marks the successful end of a quest by Mubadala for a new partner in Cepsa after it pulled the Spanish group’s stock market flotation last year, citing uncertainty in international capital markets. Mubadala said on Monday the deal gave Cepsa a total enterprise value of $12 billion. Reuters had reported in March that Carlyle, with $216 billion of assets under management as of December, was ahead of other contenders to buy a 30 percent stake in Spain’s Cepsa for up to 3 billion euros ($3.4 billion). Mubadala […]