Halliburton Company is one of the largest oilfield service providers in the world, offering a variety of equipment, maintenance, and engineering and construction services to the energy, industrial and government sectors. Halliburton operates under two main segments: Completion and Production, and Drilling and Evaluation. The Completion and Production segment supplies cementing, stimulation, intervention and completion services. The unit comprises production enhancement services, completion tools and services, and cementing services. Halliburton's Drilling and Evaluation segment provides field and reservoir modeling, drilling, evaluation, and well construction solutions that allow clients to model, measure and optimize their well placement, stability and reservoir evaluation activities. The division consists of fluid services, drilling services, drill bits, wireline and perforating services, testing and subsea services, software and asset solutions, as well as project management services.