Texas oilman Boone Pickens speaks to energy industry officials in Oklahoma City in this May 2, 2006 file photo. In the five years since  Pickens started trying to sell water from beneath the vast empty spaces of West Texas, he hasn't had any paying customers. However, officials at Pickens' company aren't concerned. And water law experts say they shouldn't be because, quite simply, the second-most populous state in the nation is running low on water. (AP Photo/File)