In this file photo, a Greka Oil & Gas cleanup crew works on an oil spill flowing down a creek behind Firestone Vineyard, north of Los Olivos, Calif. in January 2008. On April 11, 2018, California regulators hit the troubled company with a record $12.5 million fine following nearly 1,500 violations in the past year at an oil field in Orange County. (Santa Barbara County Fire Department via Associated Press) **FILE**

In this file photo, a Greka Oil & Gas cleanup crew works on an oil spill flowing down a creek behind Firestone Vineyard, north of Los Olivos, Calif. in January 2008. On April 11, 2018, California regulators hit the troubled company with a record $12.5 million fine following nearly 1,500 violations in the past year at an oil field in Orange County. (Santa Barbara County Fire Department via Associated Press) **FILE**