PolitiFact California: Does California Have Nation's Highest Gas Prices? Chris Remington Wednesday, November 8, 2017 | Sacramento, CA Listen / download audio Update RequiredTo play audio, update browser or Flash plugin. Is it true that California has among the highest gas prices in the nation? Could the latest gas tax be to blame? PolitiFact California reporter Chris Nichols has the answers. He also debunks a related claim by gubernatorial candidate John Cox that the cost to build one mile of road in California is five times more than anywhere else in the country.