Oil & gas companies

Edison produces and sells electric power.

COSCO SHIPPING Energy Transportation (中远海运能源运输股份有限公司) is a company engaged in the shipment of energy, including oil and natural gas.

Andeavor (formerly known as Tesoro Corporation) is an integrated petroleum refining, logistics, and marketing company.

Iren operates as a multi-utility company, which produces and distributes electricity, as well as distributes and sells natural gas.

Plains All American Pipeline is engaged in the transportation, storage, terminalling and marketing of crude oil.

Diamondback Energy is an independent oil and natural gas company.

PureWest Energy (formerly known as Ultra Petroleum) is an oil and gas company that engages in the acquisition, exploration, development, operation, and production of oil and natural gas properties.

Italgas is a natural gas distribution operator.

MODEC (三井海洋開発株式会社) is a company specializing in the engineering, procurement, construction, and operation of floating production systems for the offshore oil and gas industry.

Motor Oil Corinth Refineries is engages in oil refining and oil products trading businesses in Greece and internationally.

Centrica is an integrated energy and services company.

Hellenic Petroleum, together with its subsidiaries, operates in the energy sector.