Gasoline is the bloodline that keeps America moving. Our personal vehicles alone guzzle 140 billion gallons of gasoline and diesel fuel each year, up 3.2 percent from a year ago.

Tracking gas prices can feel like a roller coaster ride. They’re down a little one month, up the next, before shooting up more than 50 percent in a year. Plus, they’re different depending on where you look. Other countries, and even other states and cities, can have very different gas prices from your local Gas-N-Go. To the average person, it probably seems as though there’s little rhyme or reason to how gas prices are determined. In this article, we will look at the forces that impact the price of gas at the pump, and we’ll find out where your gas money actually goes.

Americans have an insatiable thirst for gasoline, and with sport-utility vehicles (SUVs) continually growing in popularity we are only getting thirstier. Just look at the roads and highways and you’ll see that a severe gas shortage would practically cripple the country. Americans drive more than 2.5 trillion miles per year in automobiles, light trucks and SUVs, according to a MEMA report. That’s equal to 14,000 round trips to the sun. Today, we drive almost twice as much as we did in 1980 (1.5 trillion miles).