Dassel's Petroleum is proud to be the total energy supplier to California's Central Coast, the Bay Area and the Central San Joaquin Valley. Dassel's provides propane, gasoline and diesel products and services to residential, commercial, agricultural and agri-business customers. We have always operated on a Keep-Full basis and are committed to making certain you never run out of fuel. In business since 1939, our Dassel's team is dedicated to providing our customers with exceptional service. You will find our staff at our two operations in Hollister and Hanford to be friendly, professional and ready to serve your energy needs.