Abstract: A semicylindrical hood is formed with a lower beveled cutting edge arranged for positioning above an oil well fire and its projection, wherein the edge is arranged for a digging into a surrounding environment relative to the fire to effect its discontinuance of oxygen thereto. A first halogen gas conduit and a second water conduit are directed into the hood to effect extinguishing and cooling of a fire contained therewithin. Various guide loops are mounted about the lower edge perimeter for guidance of the hood relative to an associated oil well fire. A pressure relief valve, as well as a temperature indicator organization, is mounted through the hood.