Wed Jun 29 2005 10:06:28 ET China expressed opposition to interference in a government-controlled oil company's bid for the U.S.-based oil company Unocal, state media said Wednesday. Foreign Ministry spokesman Liu Jianchao said that China National Offshore Oil Corporation's $18.5 billion offer for Unocal was "normal commercial activity between enterprises." Liu said "economic cooperation between China and the U.S. serves the interests of both sides and commercial activities should not be interfered in or disturbed by political elements." There are growing concerns in Washington over the deal as some U.S. officials are uncomfortable with CNOOC, 70 percent owned by the Chinese government, controlling a major player in the U.S. energy sector. Xinhua reported Wednesday that CNOOC Chief Executive Fu Chengyu is heading to the United States for negotiations and to dispel concerns over the deal.