WHY IS THE COST OF GAS SO HIGH? IT'S NOT JUST ABOUT US. Here's a FACT for you...Federal laws do not generally allow crude oil that's produced in the U.S. to be exported but permit the export of refined products that come from it — such as gasoline, diesel and jet fuel. Last year, for the first time since 1949, the U.S. became a net exporter of these products. Most gasoline exports go from Gulf Coast refineries to Latin America, where demand is booming.