The U.S. is producing more oil than ever. So why are oil prices rising so much that a gallon of gasoline now costs almost $3? Wasn't shale oil supposed to make OPEC irrelevant? How much higher can prices go, and how is it all impacting the global economy? Javier Blas, chief energy correspondent for Bloomberg News, discusses all this and more with Scott Lanman of Bloomberg News and Daniel Moss of Bloomberg Opinion.