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Mack Energy Corp is a Artesia, NM-based company in the Energy and Utilities sector.
Resolute Energy, Inc. is an independent oil and gas company that actively pursues petroleum and natural gas exploration, development and production in Western Canada, particularly in Alberta and Saskatchewan. During the year ended December 31, 2004, the
Weatherford International is a Kingwood, 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.