Geology has been very, very good to the state of North Dakota. The state has the entire sedimentary column from the Pre-Cambrian, all the way up to the Cretaceous Age and into the Tertiary Age. Essentially the whole column is still there. This is very unique. It does not exist in Pennsylvania; it does not exist in Colorado; it does not exist in California.It really is interesting, isn't it? Not only does North Dakota have the entire sedimentary column, and not only is that not duplicated elsewhere (perhaps Texas?), the Bakken oil play is almost entirely within the borders of the state of North Dakota. I've not been impressed with results just to the west (Montana) or just to the north (Canada along the border; and, of course, "nothing" (yet) to speak of to the south (South Dakota).