I only need gas every 2 or 3 weeks for my Yaris, but restricting gas supply is a deliberate policy for the Petro companies here on the Left Coast. They bought up all the small refineries, closed them and focused production on 3 giga refineries. Whenever they shut one down for "maintenance" gasoline supply drops, prices go up, and stations run low or out of gas. I replaced my underground oil tank and oil furnace with an electric air coupled heat pump in 2000. I never get nostalgic about filling up that 500 litre oil tank at least twice a year.

Despite all the brand names you see most gas comes from the closest giant scale refinery. The different brands just swap product for their stations.