On the mountainous Wind River Indian Reservation in western Wyoming, cattle grazing in a valley share space with more than a hundred gas wells. The driver stacks up pyramids of five-gallon bottles at 19 stops. Encana Corporation, an energy company, provides the water. It's the only way disabled veteran Louis Meeks can stay on the land he bought back in the 1970's, when his water wells pumped sweet life into the place. No more. It gives off a pungent, petroleum smell.