 How far out to fractures actually propagate when fracking a well? How far out to fractures typically propagate from a well is a subject of ongoing debate in the state of Pennsylvania and across the nation. The issue largely is that the operator anticipates that fractures propagate outward on average somewhere on the order of three to four hundred feet, and so they'll space their laterals eight hundred feet apart, maybe a thousand feet apart, assuming that the average propagation distance is up to five hundred feet. There are exceptions to the rule in which fractures have been known to propagate outward as much as five thousand feet from the from the well bore. And this creates a bit of a problem if you're a landowner that has not leased and thinks that you want to protect your mineral rights. The reality is that industry cannot control the distance that fractures propagate outward, and it is likely that in some instances at least property boundaries are crossed by these fractures. Least boundaries are crossed by these fractures, and this is a subject of an ongoing court issue right now.