The bottom line is that the refinery capacity in the Gulf is now less dependent on imported oil than ever before.As we reported yesterday, the talking point about domestic energy independence and weaning the U.S. economy from foreign oil is still alive and well in the energy and biofuels debate. As Wesley Clark, co-chairman of Growth Energy, said at the Senate Committee on Environment & Public Works hearing last week, the Renewable Fuel Standard (RFS) is "one of the key components that have helped lower our dependence on foreign oil by 33 percent" and that the U.S. needs to keep it at high levels because "... oil is a global market. We don't control the price."However, we do enjoy a big spread and not because of biofuels. The U.S. Depar...