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Other links at Energy and Environment > Oil and Gas > Operating Companies |
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El Paso Corporation
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Operations from wellhead to the trading floor. Oil and gas production, and pipelines.
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Royal Dutch/Shell Group
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Five core businesses are exploration/production, oil products, chemicals, gas and power Generation, and renewables.
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Marathon Oil Company
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Operates in 18 states and many foreign areas. An integrated company including transportation, refining and product sales.
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