The U.S. Energy Information Administration, or EIA, has come out with the most recent global estimates for shale oil and gas, and not surprisingly, those numbers have been revised upwards dramatically since the 2011 report. In the video below, Fool energy analysts Joel South and Taylor Muckerman tell investors why we have seen such a sharp increase in the estimates of just how much oil and gas is contained in shale plays worldwide, and Joel takes us through several companies that stand to benefit in a big way as shale drilling continues to expand.

Joel South has no position in any stocks mentioned. Taylor Muckerman owns shares of Halliburton. The Motley Fool recommends Halliburton. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.