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Energen Corporation is a diversified energy company with a growing oil and gas acquisition and development company and a strong and stable natural gas utility.
Innospec Inc., formerly known as Octel Corporation and Associated Octel Company, Ltd.,
Crescent Directional Drilling is a Houston, TX-based company in the Energy and Utilities sector.
Kern Oil & Refining Co is a Bakersfield, CA-based company in the Energy and Utilities sector.
Westport Technology Center is a Houston, TX-based company in the Energy and Utilities sector.