Typcally, the new drilling does not have to wait until the first well declines too far. For horizontal locations, the new surface locations can be from the same pad but a designated distance away from the first well location or may be from a completely different surface location. They usually line up the well paths like cigars. In an increased density case where they plan to drill more than one child well, they will drill the wells back to back and then frac them all at the same time. The exhibits will show the needed information.