The given graphs demonstrates the origin of oil for America in 2012 and how much oil it imported from 2005 to 2012
Overall the US utilized most Crude oil from its country, followed by that from Canada. Additionally, the oil demand witnessed a decreasing trend throughout the surveyed period.
Looking first at the figures from the pie chart, it is worth noting that Crude oil in America dominated others sources of 36%, followed by that of Canada, at 25% in total. Moreover, oil originated from middle east exhibited a modest value, at 18% compared to other oil sources. Furthermore, Latin America and Africa displayed a nearly identical statistic, with the former being higher than the latter by 2%. In contrast, other sources accounted for a marginal value, at 3% at the same recorded year.
Moving onto the remaining data, it is clear that the us oil imports underwent a considerable decline. Particularly, the amount of oil this country imported gradually diminished in the first five years. Then, this figure slightly climbed up to nearly 12 million barrels. After that, the amount of oil imported continually decreased to reach its bottom at about 9 million barrels over the researched timeframe