Essen, Germany, Rabi'I 25, 1436, Jan 16, 2015, SPA -- German energy group RWE said on Friday it would complete the 5-billion-euro (6.5-billion-dollar) sale of its oil business unit to LetterOne Group, a company controlled by Russian oligarch Mikhail Fridman, by March at the latest, dpa reported. Under a revised deal, LetterOne will keep operations by Dea oil production company in the North Sea separate from other activities for a number of years, RWE said in a statement on its website. Britain had objected to the sale after Western sanctions imposed on Russia for its annexation of Crimea from Ukraine. -- SPA 18:56 LOCAL TIME 15:56 GMT www.spa.gov.sa/w