Fracking: "Biggest Boom Since Housing Bubble"

Forty years after the Arab oil embargo, the U.S. has become the world's largest oil and gas producer. This is largely the result of fracking, the shortened name for hydraulic fracturing, which uses water and chemicals injected into rock at very high pressures to release the oil and gas embedded within. Recent advances in this decades-old method of drilling have produced more oil and gas in the U.S. than most thought possible.