Texaco, the American oil company that Chevron acquired in 2001, once poured oil waste into pits used decades ago for drilling wells in Ecuador's northeastern jungle. Texaco's roughnecks are long gone, but black gunk from the pits seeps to the topsoil here and in dozens of other spots. These days the only Chevron employees who visit the former oil fields do so escorted by bodyguards toting guns. They represent one side in a bitter fight that is developing into the world's largest environmental lawsuit, with $27 billion in potential damages.
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