Meanwhile, Russians have been investing heavily in the US:
Commerce Department data show that in the first half of 2008, the United States imported 17.5 million barrels of oil worth nearly $2 billion from Russia. Russian oil is just part of a larger trade flow between the two frenemies. According to the Commerce Department (see Part B, Exhibit 14 of the full release available here), in the first half of 2008, U.S. exports to Russia were $4.66 billion and imports were $13.3 billion.Daniel Gross/Newsweek 21.Aug.08
The trade data doesn't come close to telling the whole story of U.S.-Russian financial relations.