Gas prices this Thanksgiving were expected to average $3.27 a gallon, down 16 cents from last year and 5 cents below 2011, according to GasBuddy.com. This would translate to an extra $1.93 billion for would-be shoppers during the start of the holiday shopping season ( although a little sharing wouldn’t hurt). For Californians, much of the decreases are attributed to increased availability and delivery of oil from locations within the country, aided by new infrastructure to transport and store crude oil. One example comes from San Luis Obispo, where Phillips 66 recently completed a draft environmental document for a new rail terminal that would send up to 80 tank cars of crude oil to Southern California and the Bay Area. Refineries elsewhere are either adding or improving rail facilities at their refineries to receive these deliveries. However, the railroad industry is also calling on the federal government to provide stronger safety standards for oil cars in response to recent crashes and increased reliance by oil extraction companies to transport crude oil via rail. In any case, gas prices climbed back up by 10 cents per gallon since bottoming out in November.