Weekend Benicia Refinery Flaring Released More Than Expected Sulfur DioxideFlaring at the Valero refinery in Benicia this weekend has released an estimated 9,000 pounds of sulfur dioxide into the atmosphere, according to an updated hazardous spill report.
Flaring, Black Smoke At Richmond Chevron Refinery Prompts Level 1 WarningA Level 1 flaring incident was reported Saturday evening at the Chevron refinery in Richmond, according to Mayor Tom Butt, who posted about it on his Facebook account.
Flaring At Richmond Chevron Refinery Produces Black Smoke Over East BayBlack smoke hanging over the East Bay Wednesday evening is the result of flaring in a unit at the Chevron Refinery in Richmond, officials said. 
Complaints Over Latest Flaring Event At Chevron Richmond RefineryFour members of the public filed complaints with the Bay Area Air Quality Management District over flaring observed at the Chevron Richmond Refinery over the weekend.
Bay Area Air Quality District Investigates Flaring at Chevron Richmond RefineryThe Bay Area Air Quality Management District said Friday it has launched investigations and increased scrutiny of Chevron's Richmond refinery as a result of several recent flaring incidents.
Chevron Issues Warning Of Ongoing Flaring At Richmond RefineryChevron’s Richmond refinery is experiencing ongoing flaring Wednesday morning, which has forced the oil company to issued a warning to area residents, according to company officials.
Chevron: Flaring At Richmond Refinery Was ‘Nothing Significant’Chevron said flaring that occurred New Year's Eve and New Year's Day at the refinery in Richmond was "nothing significant."
Valero's Benicia Refinery Spewed Alarming Amount Of Chemicals During Power OutageAn alarming amount of chemicals spewed into the air from Benicia's Valero refinery during two weeks of flaring that followed a power outage in May 2017.
Flaring, Smoke At Martinez Shell Refinery Prompts Warning To 'Avoid Area'Contra Costa Health Services was advising people to avoid the area around the Shell Refinery in Martinez Monday afternoon due to "excessive flaring and black smoke."
Health Advisory Ends After Flaring At Martinez Shell RefineryA health advisory issued because of flaring at the Shell refinery in Martinez Tuesday afternoon has been canceled. A problem occurred at the refinery at about 12:40 p.m., said Randy Sawyer, the agency’s chief environmental health and hazardous materials officer.