加拿大 - 美國（由Sylodium，國際貿易目錄）

Since the 1973 oil embargo imposed on United States by Arab oil producing nations, United States has not relented in pursuit of strategies to make America energy secured and sufficient. The energy security was paramount to United States because of its dependency on foreign oil especially in the troubled Middle East. American modern industrial complex is run on oil and she cannot afford to be vulnerable to the instability in Middle East, its primary source of oil. Finally, the formulated strategy is bearing fruit in a big way and United States has apparently reached the promised land of energy sufficiency and it will soon export crude oil by 2014. Earlier, United States strategic interest was extended to Nigeria where the supply of sweet ebony crude oil was more reliable. Nigeria was a good alternative to Middle East where political insecurity and instability are threat to oil shipment to United States. The energy policy makers and business community in America does not want to rely solely on the Middle East oil. Therefore looking beyond Middle East was a smart strategic move, not that they abandon oil supply from that part of the world but they diversify their sources of oil supply to include Mexico, Canada, Nigeria, Venezuela and many other places in southern hemisphere. Sylodium (international trade directory) you can advertise for free your company or your project, at the intersection of cities that you want, for example; 加拿大 - 美國 or any city around the World.