Valero Energy Buys Six of Verasun's Ethanol Plants: More Big Oil Backing Biofuels

photo: Nic McPhee via flickr Back at the beginning of November, the world's largest producer of ethanol, VeraSun filed for bankruptcy. Today comes word that Valero Energy , the US's largest independent oil refiner, has bought seven of Verasun's facilities, for a price of $477 million:...