World Largest and Top Oil Field Services Companies List by Market Cap of July 2023

Schlumberger is the provider of technology services for Oil and Gas industry in the key areas of reservoir characterization, drilling, production, and processing. Schlumberger supplies the industry's most comprehensive range of products and services, from exploration through production and integrated pore-to-pipeline solutions for hydrocarbon recovery that optimize reservoir performance.

Halliburton is oil fields services company with headquarters in Texas, USA.

As on 2022, Halliburton has 42,172 employees.

Halliburton annual revenue generated for period ending Dec-2022 was 20,297 million USD.

Halliburton annual net income generated for period ending Dec-2022 was 1,572 million USD.

China Oilfield Services is an Integrated Oilfield Service Solution company. It is having four major business segments they are geophysical services, drilling services, well services and marine and transportation services covering the exploration, development and production phases of oil and gas industry. The headquarters is in China.

Worley provides engineering, procurement and construction services and expertise to the upstream, midstream, chemicals, power, and mining and minerals sectors. The headquarters is in Australia.

Valaris was created by the combination of two leading offshore drillers with decades of experience and knowledge to create the most capable, effective and highest performing offshore drilling service company in the world. They provide drilling services across all water depths with unmatched scale, geographic presence and customer relationships.

What Valaris have?

• 13 drillships
• 5 semisubmersibles
• 36 jackups
• 2 deepwater managed units

Yantai Jereh Oilfield Services Group is specialized in oil and gas, power and environmental management, Leveraging the resources and capabilities of equipment manufacturing, technology services company. It is having 4990 employees as on 2019. The headquarters is in China.

Fugro provides oil field services and equipment, information with headquarters in Netherlands.

Secure Energy Services is a network of midstream infrastructure energy services company. The company annual revenue is 3,766 million CAD for year ending December 2021. The headquarters is in Canada.