The law has banned crude oil exports, with the U.S.
Commerce Department able to grant exceptions for certain types of oil. In 1980, crude oil exports peaked at 104 million barrels, dropping to 43.8 million barrels in 2013. The exceptional export licenses were for oil from
Cook Inlet, oil flowing through the
Trans-Alaskan Pipeline System, oil exported to Canada, heavy oil from California, certain trades with Mexico, and some exceptions for re-exporting foreign oil. When oil is processed, e.g. distillation, it can be exported without a license. Although, the export ban was quoted as a reason why crude oil was discounted $10 below the world price from early 2014 throughout 2015, as measured by the West Texas Intermediate benchmark, this claim has not been supported by empirical research. Oil producing companies and oil producing states, such as Texas, Alaska and North Dakota lobbied to lift the ban. Oil refineries have been against lifting the export ban, because their raw material, the sweet, light domestic crude was available at a low price. In June 2015, the Obama administration had permitted the export of sweet, light oil for the import of heavy, sour oil from Mexico. Environmental groups have opposed lifting the ban because it would mean more oil sales, more drilling and more oil production with all its environmental impacts, increasing emissions of carbon dioxide and other pollutants. == Other provisions ==