US BioEnergy Corp. CEO Gordon Ommen speaks to his company's shareholders in St. Paul, Minn. in this May 31, 2007 file photo. VeraSun Energy Corp.'s deal Thursday, Nov. 29, 2007 to acquire US BioEnergy Corp. is likely to be the first step toward consolidation in an industry that has seen its profits squeezed by high corn costs and low ethanol prices.
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