Humberto Piaguaje (R), leader of the indigenous Secoya nation of Ecuador, emerges from Chevron's annual shareholder meeting in San Ramon, California, April 25, 2007. Demonstrators outside the meeting protested on behalf of Indians in Ecuador who accuse Chevron's Texaco subsidiary of dumping oil-laden water into the environment in Ecuador from 1972 to 1992. Texaco merged with Chevron in 2001 and the company denies any wrongdoing. REUTERS/Robert Galbraith (UNITED STATES)