ONEOK Field Service, 114 W 2nd St, Hugoton, KS 67951, US

Founded in 1919, Halliburton is one of the world's largest providers of products and services to the energy industry. The company serves the upstream oil and natural gas industry throughout the lifecycle of the reservoir. It consists of two divisions, including drilling/evaluation and completion/production. The firm's capabilities include project management, real time services, reservoir testing/analysis, formation evaluation and hole enlargement, among others. Halliburton represents several brands, such as Easywell, Landmark, Pinnacle, Sperry Drilling and WellDynamics.