Abstract: A portable plumbing and production unit for use with a hydrocarbon producing well comprises a rigid structural frame, at least one oil storage tank mounted on said frame, a separator mounted on the frame, and at least one water storage tank mounted on the frame. Controls are also mounted on the frame and the controls, separator and oil and water storage tanks are interconnected with suitable plumbing and valving. The control and separator are also interconnected to the producing well and its pump so as to receive, separate, store, and dispense the hydrocarbons and the various constituents of the composition emitting from the well. This unit also includes a transportation unit detachably secured to the frame for support during transportation and for assistance in locating and positioning the package at the well site and a releasably mounted water knockout tank movable between transportation and operational modes.