Texas oil billionaire T. Boone Pickens is about to make a killing by selling water he doesn’t own. As he does it, it will be praised as a planet-friendly wind project. The basic story amounts to this: Pickens, thanks to favors from state lawmakers whose campaigns he funded, has created a new government whose only voters are two of his employers; this has empowered Pickens to more cheaply pump water from an aquifer and, by use of eminent domain, seize land across 11 counties in order to pipe the water to Dallas. To win environmentalist approval of this hardly “sustainable”...