The basin floor (light blue) the Wolfcamp Shale isopach is 1,050’ thick (+/- 50’) and uniformly thick over a large area. The geologic and economic “sweet-spot” is the proximal basin floor, which has the greatest heterogeneity of grain-size and composition, high TOC and high pressures formed by the trapped hydrocarbons as they cracked from kerogen to oil. In the slope setting to the west, the Wolfcamp Shale thins from 1,050’ to less than 750’ in 3-4 miles.