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Penn Virginia Corporation is an independent oil and gas company primarily engaged in the development, exploration and production of natural gas and oil in various domestic onshore regions including East Texas, the Mid-Continent, Appalachia, Mississippi
excaliburdrilling is a Brooks, AB-based company in the Energy and Utilities sector.
Cass City Oil is a Cass City, MI-based company in the Energy and Utilities sector.
Alamo Energy Corporation is a Houston, TX-based company in the Energy and Utilities sector.