In Chattanooga, regular unleaded gas costs an average of $3.35 per gallon, according to the website ChattanoogaGasPrices.com. That means it costs more than $50 to fill a typical car's 15-gallon tank.
This summer, high gas prices seem to be a bigger drain on your wallet each time you fill up.
But why does gas cost so much?
It's easy blame high gas prices on rich oil company executives or greedy gas station owners. But that's just not accurate. In truth, governments rake in a larger profit than anyone at the pump.
The price of a gallon of gas is based on the combined cost of four different expenses: the price of crude oil, the cost of refining gas, distribution and marketing expenses, and the amount of taxes levied on gasoline.
Oil costs comprise about 76 percent of the cost of gasoline, according to U.S. Energy Information Administration (EIA). That means $2.66 of a $3.50 gallon of gasoline is set before the oil is even refined and turned into gas.
Global markets, reacting to supply and demand, determine the cost of crude oil. Just like any commodity, from gold to corn, a shortage in supply or an increase in demand leads to a rise in prices.
Refining oil to manufacture gas is the next step in the process -- and the next expense for drivers. During the refining process, gasoline is extracted from crude oil, and additives, including lubricants and detergents to reduce engine deposits, are added. As of January 2012, the EIA found that the refining process was responsible for six percent of the cost of gas.
Distribution and marketing — the part of the process most apparent to consumers — constitutes another six percent of gas prices. That portion of the cost includes the shipping and transportation of the gasoline, a markup to cover retailers' expenses, and any advertising done to appeal to customers.
The remaining 12 percent — or almost 50 cents per gallon — goes directly to federal, state and even local governments in an array of sales and excise taxes.
The federal gas tax is 18.4 cents on every gallon of gasoline sold in America. State gas tax rates vary from a low of 8 cents per gallon in Alaska to a jarring 49 cents per gallon in New York.
In Tennessee, state taxes increase the cost of gasoline by 21.4 cents per gallon. State gas tax rates are 16 cents per gallon in Alabama. Georgia's convoluted gas tax structure works out to roughly 29.4 cents per gallon.
Fortunately for already highly taxed Peach State motorists, Gov. Nathan Deal signed an executive order in June that prevented a scheduled .8 cent gas tax increase.
Believe it or not, government makes far more from gas sales than all of the oil companies put together.
ExxonMobil for example, made only seven cents per gallon of gasoline in 2011. That's just a drop in the bucket compared to the nearly 40 cents in taxes that Tennesseans pay on a gallon of gas.
Gas taxes are particularly unfair because they hit the poorest people the hardest. Most people have to drive, whether to work, to the grocery store, to pick up kids from school or any of the dozens of other reasons we pull out of the driveway each day.
These responsibilities don't change whether you make $25,000 or $250,000 each year. The only difference is for someone struggling to make ends meet, paying 50 cents per gallon in taxes, may be the difference between driving to work and putting dinner on the table.
The next time you begin to blame oil companies, speculators or service stations for high gas prices, remember, no one get richer off of gasoline than government.