The wet, white noise of gushing water rises above a background track of twangy guitar. Water is tumbling out of a pipe into a holding pond that looks as though it has sat nearly empty for ages, its sandy sides the color of parched desert. It looks like the California of recent headlines: drought so bad the ground is blowing away. Except now, here, in this promotional video for Chevron, there is water. Lots of it.  “The sound of that water is music to my ears,” David Ansolabehere, the general manager of the Cawelo Water District in Kern County, says in the video, gazing out over the rapidly filling pond. “Chevron is being environmentally conscious, and this is a very beneficial program, and it’s helped a lot of our farmers, helped our district, tremendously.”