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Haas Petroleum Engineering Services is a Dallas, TX-based company in the Energy and Utilities sector.
Shell Oil Company is the United States-based wholly owned subsidiary of Royal Dutch Shell, a transnational corporation "oil major" of Anglo-Dutch origins, which is amongst the largest oil companies in the world.
Allamon Tool Company is a Montgomery, TX-based company in the Energy and Utilities sector.
Choice Exploration is a Arlington, TX-based company in the Energy and Utilities sector.