Pete Bergstrom monitors the conversion of natural gas to gasoline at Siluria Technologies in Hayward. Photo: Paul Chinn, The Chronicle The clear gas produced from natural gas is made for about $1 per gallon. Photo: Paul Chinn, The Chronicle A control panel monitors the production of ethylene from natural gas. The ethylene can be converted to gasoline, diesel or jet fuel. Photo: Paul Chinn, The Chronicle Pete Bergstrom monitors the conversion of natural gas to gasoline at Siluria Technologies in Hayward. The process costs much less than refining crude oil. Photo: Paul Chinn, The Chronicle Erik Scher, vice president of research and development engineering, monitors production of ethylene from natural gas at a Siluria Technologies plant in Hayward, Calif. on Tuesday, Aug. 19, 2014. The startup energy company is announcing that Saudi Aramco, one of the world’s largest oil companies, is its latest major investment partner. Photo: Paul Chinn, […]