Chevron oil refinery sits behind homes and office buildings in Richmond

 
Chevron oil refinery sits behind homes and office buildings in Richmond
A Chevron oil refinery sits behind homes and office buildings in Richmond, California, November 6, 2007. Oil prices slipped into negative territory on Wednesday, retreating from an all-time high above $98 a barrel as speculators took profits from the record rally. Picture taken November 6, 2007. REUTERS/Kimberly White (UNITED STATES)