Be sure to keep those size comparisons in mind while we continue with the exercise. Now scroll down to the "Energy" section of the factbook for information relating to the rest of the questions.

Let's start with the obvious: crude petroleum oil. Which of the comparison nations has the largest estimated crude oil reserves, not only of the five comparison nations, but in the world?

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That said, having oil is not the same thing as producing oil, so take a look at the factbook again: which of the five nations actually has the highest crude oil production?

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More than just having access to oil reserves and production, the petroleum industry is ultimately driven by trade, i.e., imports and exports. All five nations have crude oil production capability and four of them do not import any additional crude oil. Which of the five is the odd one out that supplements their crude oil withimports?

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How about the other direction: which nationexportsthe most crude oil?

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Answer choices:

Russia

Venezuela

Oman

Yemen

Saudia Arabia