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| Hyundai Oil Korean based oil and gas production, refining and retail sales. |   |
| Atlanta Gas Light Co. Also offers retail and wholesale natural gas, electricity, propane marketing, energy-related consumer products and services, and ga. Natural gas distribution utility for residential, commercial and industrial customers in the Southern US region. |   | |
| Penneco Oil Company, Inc. Provide ongoing leasing, exploration, marketing and drilling operations for natural gas and crude oil in Western Pennsylvania and West Virginia. |   | |
| Koch Oil Company Integrated petroleum business, from crude oil supply and trading through refining and wholesale product marketing and trading of light and heavy products, including asphalt. |   | |
| Petroleum Marketers Association of America (PMAA) Federation of state and regional trade associations representing independent petroleum marketers (mostly small, family-owned) nationwide. |   | |
| Kinder Morgan Operates natural gas and petroleum pipelines and storage, gathering, along with retail distribution, marketing and electric generation assets. |   | |
| Hoover's: Oil and Gas Wholesale Distribution Provides in-depth business and public/private company information, financials, competitors , industry overviews, officers, including profiles and news. |   | |
| Minster Fuels Limited Providers of fuels and lubricants for domestic heating, agriculture and commercial applications. |   | |
| theoilsite.com Independent business-to-business exchange for the oil industry. |   | |
| Irving Oil Limited Oil and gas exploration, distribution, production, refining and retail products. |   | |
| Farm & Home Oil Company Offering heating oil, propane gas, and commercial fuels to both residential and commercial customers in central and eastern Pennsylvania. |   | |
| Migrol Genossenschaft Providers of fuels and lubricants for domestic heating, agriculture and commercial applications. |   | |
| Travis' FBO (Fixed Base Operation) and Service Corp. Louisiana-based transporter and supplier of fuels. |   | |
| Statoil Involved in the exploration, transport, production and marketing of petroleum and petroleum-derived products in Scandinavia. |   | |
| Petroleum Traders Corporation A wholesale marketer of gasolines, diesel fuels and heating oils throughout the U.S. |   | |
| CMS Energy Diversified global energy company active in all aspects of the energy industry. |   | |
| Mechanics of Hydraulic Fracturing Yew for research engineers and advanced graduate students in petroleum or mechanical engineering. Reference book by Ching H. |   | |
| Slovene Petroleum Company plc (Petrol) Slovenia-based petroleum and gas energy product supplier. |   | |
| Duke Energy Corporation Global energy company that produces, delivers and sells energy and energy-related products and services. |   | |
| Mid-Town Petroleum Providers of fuels and lubricants for domestic heating, agriculture and commercial applications. |   | |
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