It's all thanks to huge deposits of shale oil.
At least four new major shale oil plays including the Bakken in Montana and North Dakota, the Eagle Ford in Texas, and the Marcellus in Pennsylvania and New York, may have more than 20 billion barrels each of recoverable oil.
Each of these new shale oil plays has the potential to double the total reserves we have today.
In fact, the "shale oil revolution" will soon make the United States the world's leading producer of crude oil, a report from Goldman Sachs Group Inc. (NYSE: GS) recently predicted.
The United States will produce more than 10.7 million barrels of oil per day by 2017, the report said. That's more than any other country, including Saudi Arabia.
And even though oil prices are in a short-term swoon, the glut of shale oil is about to make savvy investors a huge fortune.
That's why you need to take a hard look at a particular group of shale oil stocks that stand to benefit most from this boom.
But first, you need to know how this came about.