|Company||Market Cap (USD)|
|Schlumberger Limited||$75.81 B|
|Halliburton Company||$35.73 B|
|Baker Hughes Company||$28.99 B|
|Tenaris SA||$19.72 B|
|China Oilfield Services Ltd||$9.49 B|
The market capitalization of a company, more simply referred to as "market cap", is the total market value of a publicly traded company's outstanding shares. It is often considered as a key indicator of what a company is worth.