World Top Oil and Gas Pipeline Transport Companies List by Market Cap as on Sep 1st, 2021

Saudi Aramco is oil and gas exploration, refinery and trading company. Saudi Aramco is the world’s largest integrated oil and gas company having both upstream and downstream operations, producing the energy and chemicals. Headquarters is in Saudi Arabia.

In 2019, Saudi Aramco produced 13.2 mmboed, including 9.9 mmbpd of crude oil. 

As on 2020, Saudi Aramco had 96,000 employees

Gazprom is Russia's biggest Oil and Gas Company. Gazprom is a global energy company focused on geological exploration, production, transportation, storage, processing and sales of gas, gas condensate and oil, sales of gas as a vehicle fuel, as well as generation and marketing of heat and electric power.

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

Williams Companies is an energy infrastructure company focused on connecting North America’s significant hydrocarbon resource plays to growing markets for natural gas and natural gas liquids (NGLs). Williams’ interstate gas pipeline and gathering & processing operations span the United States, including strategic assets in the deep water Gulf of Mexico, the Rockies, the Pacific Northwest and the Eastern Seaboard.

Williams owns and operates midstream gathering and processing assets, and interstate natural gas pipelines. 

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.

OMV Group is oil and gas sector company with headquarters in Austria.

OMV Group has business in both upstream and downstream:

Upstream Business : Exploration of oil and gas

and

Downstream Business : Refineries, Filling Stations, Gas Supply, marketing and trading, Gas Logistics.

As on 2019, OMV Group has 20,000 employees. 

Daily average production was 487,000 boe/d in 2019.

The Company operates about 2,100 filling stations in ten European countries.

OMV Group operates 3 refineries in Europe.

Bollore operates as a holding transportation company. The Company offers transportation, logistics, communications, and electricity and storage solutions, as well as manages a portfolio of communication and agricultural sector which includes oil palm and rubber trees plantations, video game console supplies and manufacturing of steel tubes. The headquarters is in France.

Canada based company and the company own a system of pipelines that transport crude oil, natural gas and natural gas liquids produced primarily in western Canada, as well as gas gathering and processing facilities and an oil and natural gas liquids infrastructure and logistics business.

Transneft is oil and gas pipeline transport company with headquarters in Moscow, Russia.

Transneft has 68000 KM of pipeline and has more than 500 pumping stations.

Transneft transports about 83% of the oil extracted in Russia.

As on 2019, Transneft has 115,900 employees.