Chevron Corp., based in San Ramon, California, is one of the world’s largest
private-sector integrated oil and gas companies. The upstream segment has
its primary operations in the U.S. and Asia-Pacific, with other assets in Africa,
the Middle East, and South America. The downstream segment has primarily U.S. and Asia-Pacific refineries, with others in Europe, Africa, and Canada, and also includes a 50% interest in Chevron Phillips Chemical Co.