the well bore surface 12 and extends into the earth 14 to a gas and or oil zone 18 a tubing string 20 is operably installed within the string casing 16 through which the gas and oil flow lubricator piping 22 is connected to the top of the tubing string 20 a controller 23 is operably connected to the lubricator piping 20 and sales flow line 25 the controller 23 senses the pressure in the well 10 and can shut in the well 10 through an operable connection to a flow control valve 27 an oil and gas flow enhancing substance 24 resides in a supply tank or other suitable container which can preferably be located adjacent the well 10 on top of the lubricator piping 22 is a modified cap 26 the modified cap 26 has a chamber 28 formed thereon with an open surface 30 therethrough for communicating between the lubricator piping 22 and chamber 28 an adjustable pressure bellows 29 is operably disposed in the chamber 28 a hollow sliding valve member 32 is operably disposed through the open surface 30 in the cap 26 and includes a side port 34 in end 36 which has a stop head 38 thereon valve member 32 has its other end 39 open an o ring 40 is disposed in a channel 42 of the open surface 30 to provide a seal between the valve member 32 and the open surface 30 a controlled valve 50 connects the chamber 28 and the supply tank of flow enhancing substance 24 and is controlled by controller 23 to enable a controlled amount of the substance 24 to enter the chamber 28 when the port 34 is closed thus not enabling.