Coalinga

December 4, 2017, 8am PST
Crude oil from Kern County's Belridge field will soon have a much lower life cycle carbon intensity thanks to new solar technology used to extract hard-to-get oil. The renewal of California's carbon cap-and-trade market made it possible.
The Washington Post - Energy and Environment
October 4, 2011, 10am PDT
In a rather remarkable application of new, carbon-free renewable power to obtain additional oil from old wells, solar thermal technology involving mirrors placed above an oil field in Coalinga, CA will create steam to inject into the wells.
Reuters via Los Angeles Times - Business