|Company||Market Cap (USD)|
|Phillips 66||$43.77 B|
|Valero Energy Corporation||$40.87 B|
|Neste Oyj||$30.57 B|
|Formosa Petrochemical Corp||$24.49 B|
|Polski Koncern Naftowy ORLEN Spólka Akcyjna||$19.12 B|
Marathon Petroleum Corporation is a petroleum refining company. It operates in the refining, marketing, and transportation of petroleum products, petrochemicals, and gasoline marketed notably in Marathon branded outlets, as well as in its retail subsidiary Speedway LLC. Marathon Oil operates 16 refineries throughout the United States with more than 3 million barrels of crude oil capacity per day.
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.