British oil giant BP said it would buy back $8 billion in shares after completing a deal to sell its 50 percent interest in Russian venture TNK-BP. BP agreed in October to sell its stake in TNK-BP to Russian energy company Rosneft in a $17.1 billion deal that included cash and shares in Rosneft, the British Broadcasting Corp. reported Saturday. BP began its venture in TNK-BP with an $8 billion investment in 2003. The company said it generated $19 billion in dividends from the deal, making it a lucrative arrangement. But the partnership with TNK was fraught with company infighting and difficulties with the government. Russian investors accused BP with putting decision-making control n the hands of British executives. Russian authorities also raided the company\'s offices, accusing a number of employees with tax evasion, including TNK-BP\'s top executive Robert Dudley, who fled the country in 2008. BP is now represented in Russia through its holdings in Rosneft. \"We expect our stake in Rosneft will generate long-term value for BP and its shareholders. But this buyback program should also allow our shareholders to see benefits in the near-term from the value we have realized by reshaping our Russian business,\" said BP Chairman Carl-Henric Svanberg.