Halliburton Co. manufactures equipment and provides drilling and production services with assets in 80 countries. Subsidiaries include Landmark Graphics, Multi-Chem, Baroid, Security DBS, and Sperry. Operations are organized into three business units: Drilling & Evaluation, Completion & Production, and Consulting & Project Management. Common shares are listed on the NYSE (HAL) exchange.
Halliburton was founded in 1919 by Earl Halliburton as a cementing company in Oklahoma. In 1940, the company acquired California-based Perkins Oil Well Cementing where Earl began his career. Gearhart-Owen Industries (GO) was founded in 1955 by fomer Welex employees Marvin Gearhart and Harrold Owen and later renamed Gearhart Industries. The jet perforating company Welex was acquired in 1957. In 1959, pressure control equipment company Otis Engineering was acquired.
Landmark Graphics was founded in 1982. Wireline and perforating company Gearhart Industries was acquired in 1989 and merged operations with Welex. Smith International's Datadril directional drilling division was acquired in 1993, and Landmark was acquired in 1996. Magnetic resonance company Numar was acquired in 1997. The company acquired Dallas-based Dresser Industries in 1998 including Baroid drilling fluids, Sperry-Sun directional drilling, and Security drill bits. In 2008, Pinnacle Technologies was acquired. The company acquired Summit ESP in 2017.