Support WBURChevron Threatens To Leave Longtime HomePlay03:52Download AudioRichard GonzalesDecember 28, 2009 ShareSmoke billows from a Chevron Corp. refinery in Richmond, Calif. The refinery is the largest producer of greenhouse gases in the state. (AP)
Smoke billows from a Chevron Corp. refinery in Richmond, Calif. The refinery is the largest producer of greenhouse gases in the state. (AP)