World Top Oil Field Services Companies List by Market Cap as on Sep 1st, 2021

Schlumberger is the world's leading 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.

Schlumberger - Key Business Points as on 2019:

• $32.9 billion revenue from continuing operations per year as on 2019.

Oil Field Services company with headquarters in USA.

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

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.

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.

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

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

National Energy Services Reunited is a National Oilfield Services company. It is having over 5,000 employees representing more than 60 nationalities in over 16 countries. The company annual revenue is 199 million USD, annual net income is 11 million USD and 4,000 employees as on 2019. The headquarters is in USA.