Chevron Oil

A two-year negotiating process has culminated with a set of 15 voluntary standards to make for more responsible fracking to safeguard the environment in Appalachia. Some environmental groups are skeptical, and not all energy companies are on board.
Mar 24, 2013   National Public Radio
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.
Oct 4, 2011   Reuters via Los Angeles Times - Business