About half of Mexico's gasoline demand is supplied by Mexican refineries, the rest of the demand is met from imports, mostly from the USA. http://en.wikipedia.org/wiki/List_of_oil_refineries#Mexico http://www.marketwatch. read more
After just spending a good while researching where American oil comes from, there is much less information available than one may have had initially expected. Of course major gas and oil companies like Exxon Mobil and Chevron/Texaco do not publish in great detail all the sources of their oil. read more
About Half of U.S. Petroleum Imports Come from the We stern Hemisphere Some may be surprised to learn that almost 50% of U.S. crude o i l and petroleum products imports came from the Western Hemisphere (North, South, and Central America and the Caribbean including U.S. territories) during 2006. read more