Original oil and gas trade magazine vintage ad for HALLIBURTON OIL WELL CEMENTING.COMPANY. Main offices were located in Duncan, OK. Hydro-Lok for Water Control consists of a thermosetting resin and inert solids. It forms an insoluble plug having high compressive strength, resulting in an effective seal. This unique 1959 old oilfield petroleum drilling industry magazine advertisement would display beautifully matted and framed. Nice graphics.