Speculators and launch investigation into rising prices. today ceo of exxon defended big oil. if crude price goes up obviously gasoline prices go up. supply and demand. what has led to most recent run-up, concerns about the rhetoric over the closing of the straits of hormuz and the conflicts with iran. >> bill: okay. here now fox business anchor lou dobbs. now, look, i don't want to be disrespectful to tillerson, all right? but he says supply and demand drives it and then the next sentence, it's like barney frank talking about fannie mae, well it's the strait of hormuz might close that's why i...