With gasoline prices averaging, according to the AAA Motor Club, just $3.43 a gallon as of August 28, Clifford Krauss celebrated the “new American oil bonanza” in an article for the New York Times. Unfortunately, Krause is behind the times and only half right.

The “new” American oil bonanza is not new, nor is it confined to oil. The first economical natural gas shale fracture was completed in 1998 by George Mitchell’s company, Mitchell Energy, using slick water fracturing. Since then, natural gas from shale has been the fastest growing contributor to total primary energy in the United States, with crude oil extraction from shale right behind.

Happily, Krause got the rest of it right when he noted that these are the lowest gasoline prices of any Labor Day weekend since 2010 and, without the development of fracking and horizontal drilling, gasoline prices would probably be twice what they currently are.

The combined oil production of the three largest oil fields in the United States — Bakken, Eagle Ford, and Permian Basin — is nearly 4.5 million barrels per day, up from just one million barrels per day as recently as 2008. In July of that year, the average price per gallon of regular gasoline in the United States was $4.11.

So, with all of that increased production, why haven’t gasoline prices dropped even further?

Part of the answer is the turmoil in the Middle East, which has removed from world supply an estimated 2.8 million barrels a day. Part of the answer is the enormous increase in demand for energy across the planet. According to the Energy Information Agency and the U.S. Department of Agriculture, the world’s gross domestic product (GDP) has increased by more than 24 percent in just the last 10 years, while energy supply has increased less than five percent in that same period. Put simply, the enormous increases in energy supply in the United States have not been enough to keep up with the world’s demand for energy.

And then there are federal and state excise taxes. On the federal level they add 18.4 cents to each gallon of gas, while on the state level they add between 30 and 70 cents per gallon, depending on the state. For example, Alaska’s gasoline tax is 30.8 cents per gallon while California’s is 71.3 cents. The cheapest places to buy gas in the United States are in the southeast states of South Carolina, Mississippi, Virginia, Louisiana, and Alabama, where gas is less than $3.20 a gallon. On the other end of the scale, in Alaska gas is $4 a gallon, while gas in Hawaii is more than $4.28 a gallon.

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