AdvertisementThere had been an explosion at the Chevron refinery in El Segundo, which, according to the company, is the largest 'producing oil refinery' on the West Coast. ...According to Chevron's website, the El Segundo refinery was constructed in 1911. https://t.co/4XzhuVxhUo pic.twitter.com/JdhqR79Z9k — ABC7 Eyewitness News (@ABC7) October 3, 2025The Chevron refinery has its own fire department, which swung into action immediately. Officers and firefighters responded to the refinery in El Segundo after receiving multiple reports of an explosion, according to the El Segundo Police Department. If the Chevron El Segundo refinery has to go offline for any amount of time, gas prices in CA, AZ, NV are going to soar.