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Armstrong Energy Corp. is a Roswell, NM-based company in the Energy and Utilities sector.
Wellington Resouce Group is a Greensburg, PA-based company in the Energy and Utilities sector.
Pingel is a Pevely, MO-based company in the Energy and Utilities sector.
Schmitt Sales is a Buffalo, NY-based company in the Energy and Utilities sector.
Hyperdynamics Corporation, an independent oil and gas exploration company, is engaged in the acquisition, exploration, and development of oil and gas properties in the Republic of Guinea, Northwest Africa. It owns a 37% working interest in a concession that covers an area of approximately 9,650 square miles in offshore Guinea. The company was founded in 1983 and is headquartered in Houston, Texas.