Mobil 1 Racing oils are proprietary formulations of low viscosity synthetic base oils fortified with SuperSyn and a component-blended additive system featuring high levels of anti-wear and friction reducing additives. This advanced protection is engineered to deliver maximum horsepower with outstanding wear protection.
Those prices do include shipping. 6 quarts of oil and the box weigh about 11 pounds, so shipping oil is not exactly cheap. UPS charges about $13.00 to ship a 11 lb package about 1500 miles.
The website is independently owned and operated by Electronic Order Fulfillment Corporation under license from ExxonMobil (according to the "About Us"). Based on their phone number, they seem to be located in Miami FL area, but I don't know if they ship from there.