HalliburtonOil & Energy
$ 14,445 M
Halliburton Company provides energy and engineering and construction services, as well as manufactures products for the energy industry. The Company offers services and products and integrated solutions to customers in the exploration, development, and production of oil and natural gas.
National Oilwell VarcoOil & Energy
$ 6,090 M
NOV Inc. offers equipment and components used in oil and gas drilling and production operations, oilfield services, and supply chain integration services to the upstream oil and gas industry. The Company serves customers worldwide.
SchlumbergerOil & Energy
$ 23,601 M
Schlumberger N.V. also known as Schlumberger Limited is an oil services company. The Company, through its subsidiaries, provides a wide range of services, including technology, project management, and information solutions to the international petroleum industry as well as advanced acquisition and data processing surveys.