Abstract: A fire extinguishing apparatus for oil wells has a plurality of containers for containing fire extinguishing material connected to a main fire extinguishing container. The main fire extinguishing container has a conduit leading from a valve in the neck thereof to the interior of a bell nipple positioned on an oil well blow out preventor. A bracket attached to the main container supports a manually operable spring loaded mechanism which is adapted, upon release of the spring loaded plunger contained therein, to open a valve in the neck of the main container and allow the content of the several containers to flow under pressure through conduits into the interior of the bell nipple thus extinguishing a fire therein.