Vance Air Force Base is a United States Air Force base located in southern Enid, Oklahoma. The base is named after local World War II hero and Medal of Honor recipient, Lt Col Leon Robert Vance. Scattered throughout that area north of Oklahoma City are oil derricks as far as the eye can see. An oil derrick is a mechanical structure that forms the very heart of a typical oil rig used for the production of oil. It supports the drilling equipment and machinery that is used in the process of oil extraction from oil wells and reservoirs, both on the seas as well as on land. Our .925 sterling silver oil derrick is engraved with Vance AFB.