Adam Sieminski, head of the U.S. Energy Information Administration, speaks during an interview in Washington, D.C., U.S., on Wednesday, Aug. 22, 2012. Gasoline prices in the U.S. may rise 5 cents to 10 cents a gallon before the Sept. 3 Labor Day holiday before falling in the fourth quarter, Sieminski said. Photographer: Rich Clement/Bloomberg via Getty Images

Adam Sieminski, head of the U.S. Energy Information Administration, speaks during an interview in Washington, D.C., U.S., on Wednesday, Aug. 22, 2012. Gasoline prices in the U.S. may rise 5 cents to 10 cents a gallon before the Sept. 3 Labor Day holiday before falling in the fourth quarter, Sieminski said. Photographer: Rich Clement/Bloomberg via Getty Images