in your other life you dealt with energy so you're perfect for this. it deals with fracking and that is. >> reporter: it's a means to extract natural gas out of difficult formations. the rock formations what they do is drill down and horizontally and shoot a mixture of water and chemicals and sand into a rock formation tow break it up to release the natural gas. stpho: it's been hugely successful. >> reporter: very successful. it's the reason for the abundance of natural gas and the reason why we should make natural gas our clean fuel of the future. getting back to it, originally the interior department came out with guidelines that required us to talk about what kind of chemicals were shot into the formation prior to doing so, you had to go through a permitting process to get them approved. now what they can do is they can drill down, retrieve the natural gas and talk about what they used and so if they want to make any changes going forward they can do it that way. bill: they can talk about what they used after. >> reporter: very importantly on april 18th the interior department came out with a set of rules, guidelines that they were going to use for fracking.