Halliburton Company provides engineering, construction, and maintenance services to energy, industrial, and government customers worldwide. It operates in six segments: Production Optimization, Fluid Systems, Drilling and Formation Evaluation, Digital and Consulting Solutions, Government and Infrastructure, and Energy and Chemicals. The Production Optimization segment primarily tests, measures, and provides means to manage well production in the energy sector. It also consists of production enhancement services, and completion tools and services. The Fluid Systems segment provides services and technologies to assist in the drilling and construction of oil and gas wells. The Drilling and Formation Evaluation segment primarily engages in drilling and evaluating the formations related to bore-hole construction and initial oil and gas formation evaluation. The Digital and Consulting Solutions segment provides integrated exploration and production software information systems, consulting services, real-time operations, subsea operations, value-added oilfield project management, and other integrated solutions. It also offers Landmark Graphics, which supplies integrated exploration and production software information systems, as well as professional and data management services. The Government and Infrastructure segment operates as government logistics and services contractors with civil infrastructure capabilities. It represents construction, maintenance, and logistics services for government operations, facilities, and installations. Further, this segment includes civil engineering; consulting; project management services for state and local governments and private industries; integrated security solutions; dockyard operation; and maintenance. The Energy and Chemicals segment provides engineering, procurement, construction, technology, and services for the energy and chemicals industries. Halliburton was founded in 1919 and is based in Houston, Texas.