World Top 100 Oil and Gas Companies List by Market Cap as of August 2026

KINDER MORGAN is Oil and Gas pipelines infrastructure operating company with headquarters is in USA. Kinder Morgan is one of the largest energy infrastructure companies in North America. They own an interest in or operate approximately 84,000 miles of pipelines and 157 terminals.

Core operations include transportation, storage and terminalling for natural gas, crude oil, NGLs, refined products and liquid natural gas. Headquarters is in Texas, USA.

Energy Transfer acquired Enable Midstream Partners for 7 Billion USD as on Feb-2021.

Abu Dhabi National Oil and GAs Company. 
Headquarters is in UAE.
It operates Trading, Productuion, and the manufacturing of petrochemical products. And it also  supplier of quality oil and petroleum products to local and international customers.

Imperial Oil is Canada based Oil and Gas Company and it has Petroleum refinery business. Headquarters is in Canada.

Oil Field Services company with headquarters is in USA.

As on 2022, BAKER HUGHES COMPANY has 55,000 employees.

BAKER HUGHES COMPANY annual revenue generated for period ending Dec-2022 was 21,156 million USD.

BAKER HUGHES COMPANY annual net loss generated for period ending Dec-2022 was -601 (Loss) million USD.

TC Energy Corporation business is supply of natural gas and crude oil through pipelines and generates electricity. Headquarters is in Calgary, Canada.

MPLX owns and operates midstream energy infrastructure and logistics assets, and provides fuels distribution services. MPLX's assets include a network of crude oil and refined product pipelines; an inland marine business; light-product terminals; storage caverns; refinery tanks, docks, loading racks, and associated piping; and crude and light-product marine terminals. The company also owns crude oil and natural gas gathering systems and pipelines as well as natural gas and NGL processing and fractionation facilities in key U.S. supply basins.

ONEOK is Natural Gas Processing, transmission and Distribution ( Gas Utility ) company with headquarters is in Oklahoma, USA.

As on 2022, ONEOK has 2,966 employees.

ONEOK annual revenue generated for period ending Dec-2022 was 22,386 million USD.

ONEOK annual net income generated for period ending Dec-2022 was 1,721 million USD.

Targa Resources is a Midstream Energy Infrastructure company. The company own, operate, acquire, gathering, compressing, treating, processing and selling natural gas. Gathering, storing, terminaling and selling crude oil.
The headquarters is in USA.

As on 2022, Targa Resources has 2,850 employees.

Targa Resources annual revenue generated for period ending Dec-2022 was 20,929 million USD.

Oil and Gas Exploration and Production company with headquarters is in Texas, USA. As on 2018 they had around 11000 employees.

As on 2022, OCCIDENTAL PETROLEUM CORPORATION has 11,973 employees.

OCCIDENTAL PETROLEUM CORPORATION annual revenue generated for period ending Dec-2022 was 36,634 million USD.

OCCIDENTAL PETROLEUM CORPORATION annual net income generated for period ending Dec-2022 was 12,421 million USD.