Most of the world's oil is located in the middle eastern countries such as saudi arabia, united arab emirates, iran, and kuwait; yet, the greatest consumers of foreign oil are the united states, japan, and china–a total population of nearly 2 billion people. refer to the maps below (which you saw in this section of the unit). what can you infer from these maps? a)most countries can produce the products they need. therefore, trade is not necessary. b)the world is not as interdependent as we think. c)the world's consumers are not necessarily the world's greatest producers of any one product. therefore, goods and services must often be traded. d)one nation will purchase products from another nation to keep the economy in balance.