- Aegean - A leader in Greece and aegean in the fields of bunkering, lubricants, oil trading, bunkering stations and gas stations.
- Alexander's Gas and Oil Connections - This site provides an extensive gathering of news on the global gas in oil and energy-developments.
- Athens Oil - Greek oil company that offers oil products and services at competitive rates.
- Atlantic Petroleum - currently participates in exploration on the Faroese Continental Shelf and exploration and development in the UK sector of the North Sea.
- BP p.l.c. - Oil & Gas - A local, international oil company and global energy group offering services in oil and gas drilling, oilfield and petrochemicals.
- Castrol Motor Oil and Lubricants - provides technically advanced synthetic motor oil and specialty lubricants for your car, motorcycle, truck, boat or airplane.
- Censol Ltd - Suppliers of oil absorbents and spill containment in the Uk and beyond.
- Crown Oil UK - Offers and supplying companies with fuel, lubricants and other related services throughout the UK.
- Exxon Mobil Corporation - ExxonMobil is an industry leader in almost every aspect of the energy, oil and gas, and petrochemical business.
- Faroe Petroleum plc - Faroe Petroleum plc is an independent oil and gas company focused on creating value in Europe's Atlantic margin region through exploration and appraisal drilling.
- FLEXIM - Offers ultrasonic flow meters for liquids and gases extreme temperatures, high pressures or highly variable flow rates.
- FloGas - Flogas UK Ltd is one of the largest LPG (Liquefied Petroleum Gas) suppliers in the UK.
- Hess Corporation - A leading global independent energy company, engaged in the exploration and production of crude oil and natural gas.
- IHS.com - Global providers of critical information, decision support tools and consulting.
- Intertanko - is the International Association of Independent Tanker Owners. For safe transport, cleaner seas and free competition.
- Lukoil - Production crude oil & gas, and their refining into petroleum products and petrochemicals.
- Mærsk Olie og Gas AS - Maersk Oil is an oil company operating an oil and a sales gas production.
- Norsk Hydro - Hydro is a Norway based international supplier of energy and aluminium. Activities includes oil and gas exploration.
- Organization of the Petroleum Exporting Countries (OPEC) - The Organization of the Petroleum Exporting Countries is an international Organization made up of eleven oil producing nations.
- Russian Oil & Gas - Oil-Gas-Biz provides with daily updated news covering oil and gas industry in Russia and offers a full list of Russian companies.
- SBZ Corporation - SBZ are the premier supplier and distributor of fuel additives, biodiesel additives and biofuel additives. Supply across Europe.
- Scott - Offer including all types of specialty gas and liquid mixtures, technigas pure gases and gas handling equipment.
- Shell - Global group of energy and petrochemicals companies offering oil & gas prospecting, sales, and petrochemical products.
- SPP Energy - Offer gas pipelines in Slovakia including technological facilities, natural gas regulationstations and central gas dispatching.
- Tamoil - Tamoil, a major operator in the oil and energy industry, introduces its activities in the oil and energy sectors in Europe.
- UK Oil and Gas - responsible for licensing exploration and regulating development of the UK's oil and gas resources.
- Wood Group PSN Limited - A major, independent international service contractor to oil and gas exploration and production customers.