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Top 20 Oil & Gas Exploration & Services Companies in US.

Schlumberger Limited

Houston,  Texas,  United States 77056 (Map)

100,000 Employees  > view

Schlumberger is the world's leading supplier of technology, integrated project management and information solutions to customers working in the oil and gas industry worldwide. Employing approximately 93,000 people representing over 140 nationalities and working in more tha... more

Halliburton Company

Houston,  Texas,  United States 77032 (Map)

50,000 Employees  > view

Founded in 1919, Halliburton is one of the world's largest providers of products and services to the energy industry. With approximately 50,000 employees, representing 140 nationalities and operations in approximately 70 countries, the company serves the upstream oil and g... more

National Oilwell Varco Inc

Houston,  Texas,  United States 77036 (Map)

36,627 Employees  > view

National Oilwell Varco (NOV) is a multinational company responsible for equipment and components used in oil and gas drilling. It is headquartered in Houston, Texas and has been in the market for 150 years. The company has been present in Brazil for the past 30 years, in ... more

Baker Hughes Inc.

Houston,  Texas,  United States 77019 (Map)

33,000 Employees  > view

Baker Hughes is a leading supplier of oilfield services, products, technology and systems to the worldwide oil and natural gas industry. The Company's 34,000 employees today work in more than 80 countries helping customers find, evaluate, drill, produce, transport and proc... more

Weatherford International Ltd

Houston,  Texas,  United States 77027 (Map)

30,000 Employees  > view

Weatherford is one of the largest multinational oilfield service companies providing innovative solutions, technology and services to the oil and gas industry. The Company operates in over 100 countries and has a network of approximately 1,000 locations, including manufact... more

Quanta Services , Inc.

Houston,  Texas,  United States 77056 (Map)

28,100 Employees  > view

Quanta Services is a leading specialized contracting services company, delivering infrastructure solutions for the electric power, oil and gas and communications industries. Quanta's comprehensive services include designing, installing, repairing and maintaining energy and... more


Houston,  Texas,  United States 77027 (Map)

23,000 Employees  > view

Cameron is a leading provider of flow equipment products, systems and services to worldwide oil, gas and process industries. Leveraging its global manufacturing, engineering and sales and service network, Cameron works with drilling contractors, oil & gas producers, pi... more

Brand Energy & Infrastructure Services Inc

Kennesaw,  Georgia,  United States 30152 (Map)

15,000 Employees  > view

Brand Energy and Infrastructure Services is a leading provider of specialty services to North America's energy markets. Its extensive portfolio of specialized industrial service offerings include scaffolding, coatings, insulation, refractory, forming & shoring, cathod... more

Nabors Industries Ltd

Houston,  Texas,  United States 77067 (Map)

13,000 Employees  > view

Nabors Industries (NYSE: NBR) owns and operates the world's largest land-based drilling rig fleet and is a leading provider of offshore platform rigs in the United States and numerous international markets. Nabors also provides directional drilling services, performance to... more

McDermott International , Inc.

Houston,  Texas,  United States 77079 (Map)

12,400 Employees  > view

McDermott is a leading provider of integrated engineering, procurement, construction and installation (EPCI) services for upstream field developments worldwide. The Company delivers fixed and floating production facilities, pipelines and subsea systems from concept to com... more

Kinder Morgan , Inc.

Houston,  Texas,  United States 77002 (Map)

11,121 Employees  > view

Kinder Morgan, Inc. (NYSE: KMI) is one of the largest energy infrastructure companies in North America. It owns an interest in or operates approximately 84,000 miles of pipelines and 155 terminals. The company's pipelines transport natural gas, gasoline, crude oil, CO2 and... more

Oceaneering International Inc

Houston,  Texas,  United States 77041 (Map)

11,000 Employees  > view

Oceaneering is a global provider of engineered services and products, primarily to the offshore oil and gas industry, with a focus on deepwater applications. ¬†Through the use of its applied technology expertise, Oceaneering also serves the defense, entertainment, and aero... more

Pathfinder Energy Services

Dallas,  Texas,  United States 75206 (Map)

10,001 Employees  > view


Houston,  Texas,  United States 77002 (Map)

10,001 Employees  > view

BJ Services Company

Tomball,  Texas,  United States 77375 (Map)

10,001 Employees  > view

BJ Services is a leading North American provider of pressure pumping services and is headquartered in Tomball, TX. For more information about BJ Services, visit: ... more

John Chance Land Surveys Inc

Lafayette,  Louisiana,  United States 70506 (Map)

10,001 Employees  > view

John Chance Land Surveys, Inc. was founded in 1957 as John E. Chance and Associates, a Lafayette-based survey firm supporting the oil and gas industry. In 1992, Chance sold the company to Fugro, a worldwide leader in survey, geotechnical, and geospatial services. Based in ... more

Talisman Energy USA Inc

Horseheads,  New York,  United States 14845 (Map)

10,001 Employees  > view

Talisman Energy USA Inc. is an upstream oil and gas production company; an indirect, wholly owned subsidiary of Calgary, Alberta-based Talisman Energy, Inc. - and one of North America's largest independent producers of natural gas. Talisman and its subsidiaries are commi... more

Smith International Inc

Houston,  Texas,  United States 77205 (Map)

10,001 Employees  > view

Smith International, Inc. is a leading worldwide supplier of premium products and services to the oil and gas exploration and production industry, the petrochemical industry and other industrial markets operating through four business units, M-I SWACO, Smith Technologies, ... more


Houston,  Texas,  United States 77056 (Map)

10,001 Employees  > view

We are the leading experts in FBG technology, so it is only fitting that we are poised to become the leading provider of FBG sensing solutions. We have unlocked optical sensing technology and simplified it to the point where we can make comprehensive, reliable optical solu... more

Weatherford Laboratories

Houston,  Texas,  United States 77064 (Map)

10,001 Employees  > view

At Weatherford Laboratories, we are committed to Higher Standards. Our accomplishments include 50 new technologies, 45 original products, 35 industry awards, and 13 registered patents. We count 3 Distinguished Lecturers among us and we can claim some 982 technical papers o... more

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