What is the primary use of crude oil in the U.S.?
Topic: The Energy resources Of the United states
What environmental concern is associated with oil extraction?
Which U.S. state has the largest oil refinery capacity?
Which U.S. region is most famous for its oil reserves?
What is the primary method used to transport oil in the U.S.?
Which country is the largest exporter of oil to the U.S.?
What is the largest oil field in the U.S.?