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WikiPedia: Halliburton http://blogs.chron.com/lorensteffy/2007/03/sound_o... http://www.chron.com/disp/story.mpl/business/steff... http://www.halliburton.com/ http://www.halliburton.com/default/main/halliburto... http://www.halliburton.com/default/main/halliburto... http://www.manufacturing-today.com/content/view/96... http://finance.yahoo.com/q/pr?s=HAL http://zenobank.com/index.php?symbol=HAL&page=quot... http://digital.library.okstate.edu/encyclopedia/en... http://www.npr.org/templates/story/story.php?story...