Buffett's investment in the oil company refused to sell stock.

<P>: News, billionaire Warren Buffett (Warren Buffett) Berkshire Hathaway investment company (Berkshire Hathaway Inc.) Refused to require it from the outside world oil companies to sell shares in the call, because the .PetroChina's parent company doing business in Sudan. .</ P> <P> Berkshire said in a statement, the stock sell-off in oil will not bring any actions against Sudan beneficial effect, the statement also cautioned not active involvement in the Sudanese oil business. .There is no ability to control the subsidiary, its parent company's decision-making. .PetroChina's parent company, the first in the Sudan, the first oil field development. .</ P> <P> decided in June last year 85% of their wealth to charity's chief executive of Berkshire, Warren Buffett, the investment in China's largest state-owned oil company, PetroChina earned at least 2.3 billion .dollars. .</ P>.