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Murphy Oil Corporation is a global independent oil and natural gas exploration and production company. The company`s diverse resource base includes offshore production in Southeast Asia, Canada and the Gulf of Mexico, as well as North America onshore plays in the Eagle Ford Shale, Kaybob Duvernay and Montney.
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.
Dennis Oil Company (DOC) Lubricants is a Springfield, MO-based company in the Energy and Utilities sector.
International Voice Messaging Systems is a North Salt Lake, UT-based company in the Energy and Utilities sector.
Tesco Corporation is an oilfield services company specializing in the design, manufacture and service of technology-based solutions for the upstream energy industry.