Oil refinery, California.April 30, 2017/in /by Marli Miller hydrocarbon resources, nonrnewable, gas https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png 0 0 Marli Miller https://geologypics.com/wp-content/uploads/2017/04/geologic-time-pics-logo-300x115.png Marli Miller2017-04-30 20:23:242017-09-07 16:11:56Oil refinery, California.