Entergy, 142 Delaronde St, New Orleans, LA 70114, US

Founded in 1919, Halliburton is one of the world's largest providers of products and services to the oil and gas industries. The company adds value through the entire lifecycle of oil and gas reservoirs. It provides and integrates products and services, starting with exploration and development, moving through production, operations, maintenance, conversion and refining, to infrastructure and abandonment. Halliburton employs more than 100,000 people in over 120 countries working in five major operating groups. These segments offer a broad array of products and services to upstream oil and gas customers worldwide, ranging from the manufacturing of drill bits and other downhole and completion tools to pressure pumping services. Halliburton has locations throughout the world, including its headquarters in Houston.