What Do You Really Know About Oil?

Take a look at John David Powell's article to learn the answer to these questions:

• For instance, how big is a barrel?
• What nation supplies the most crude oil and petroleum products to the United States?
• What nation, other than the U.S., supplies the most crude oil and petroleum products to our country?
• How much oil do we import from Persian Gulf countries?
• What’s the difference between crude oil and petroleum products? How much of the cost of oil goes into the price of gasoline?
• What products that you buy on a regular basis are sold with tax included?