"Chevron's Safety Record Hit By Accidents"
"Within the oil industry, Chevron Corp. has long enjoyed a reputation for safety. But the last two years have put that reputation to the test."
"In June 2011, an explosion ripped through a Chevron refinery in Wales, killing four men. Later that month, a Bakersfield man died after falling into a sinkhole filled with steam in one of the company's Kern County oil fields.