California Oil Drilling
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FILE – In this Aug. 4, 2013 file photo, oil pumps operate near Lost Hills, Calif. The state Senate approved a bill, by state Senators Fran Pavley, D-Angoura Hills and Mark Leno, D-San Francisco, that will place new rules on oil drillers and gas producers that use the drilling technique known as “fracking,” Wednesday, Sept. 11, 2013. (AP Photo/Rich Pedroncelli, file)