Markets open flat as Dow news overshadows crude oil
* Oil prices rose to more than $40 per barrel, while the price of gold also surged as Israeli warplanes hit the Hamas-ruled Gaza Strip for a third day and Israel prepared to launch a possible invasion.
*The Dow Jones industrial average was down 2.95 points, or 0.03 percent, at 8,512.60. The Standard & Poor's 500 Index was down 0.49 points, or 0.06 percent, at 872.31. The Nasdaq Composite Index was down 1.27 points, or 0.08 percent, at 1,528.97.
(Reporting by Ryan Vlastelica, Editing by Chizu Nomiyama)