5 Biggest Oil Companies in USA

4. Phillips 66 (NYSE:PSX)

Total revenue of the company in 2019 (in millions of dollars): 109,559

Total profits of the company in 2019 (in millions of dollars): 3,076

Total assets of the company in 2019 (in millions of dollars): 58,720

Total employees of the company in 2019: 14,500

Phillips 66 was founded 94 years ago in 1927 and is currently headquartered in Houston, Texas. The company has activities in at least 65 countries across the world, and is one of the few companies in the world to have revenues of more than $100 billion.

Phillips 66 Partners LP