(FILES) In this file photo taken on Oct. 21, 2019 a pumpjack from California-based energy company Signal Hill Petroleum is seen in front of the landmark Curley's Cafe, one of two pumpjacks in the Diner's parking lot which has been churning out oil from the ground below since 1921 in Signal Hill, California.
Photo by AFP
As the summer driving season fades in the rearview mirror, oil markets are taking on a distinctly chilly air.