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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
Mid Continent Well Logging is a company that provides mud logging and formation evaluation services to the oil and gas industry.
Polysi Technologies is a Sanford, NC-based company in the Energy and Utilities sector.
Milford Redi-mix Co is a Milford, MI-based company in the Energy and Utilities sector.
K&M Technology is a Spring, TX-based company in the Energy and Utilities sector.