Updated 4:20 p.m. Tuesday
State regulators announced Tuesday they’re imposing a moratorium on new permits for an oil extraction method that has been linked to what California’s top conservation official is calling “a crisis of oil leaks” — a series of uncontrolled crude petroleum releases from Chevron wells in Kern County.
The state Division of Oil, Gas and Geothermal Resources announced Tuesday it won’t issue new permits for the technique, which uses high-pressure steam to release oil trapped in underground rock formations. Meantime, the agency announced, experts from Lawrence Livermore and Sandia National Laboratories will study conditions in the part of Kern County’s Cymric oil field where massive amounts of crude petroleum and oily water have flowed to the surface since 2003.
The releases, which regulators and the industry call “surface expressions,” gained widespread attention after KQED reported a series of large, uncontrolled flows around Chevron wells that began in May and continue today.
Wade Crowfoot, the state’s secretary of Natural Resources, described conditions in the Cymric field as a “crisis of oil leaks.”
“We’ve experienced a spate of unpredicted, uncontrolled oil leaks this spring and summer,” Crowfoot said in an interview.
DOGGR, part of the California Department of Conservation, also announced it will refer dozens of pending oil company applications for hydraulic fracturing and other “well stimulation” methods to the Lawrence Livermore lab for third-party scientific review to ensure that they meet state safety and environmental standards. At the same time, DOGGR is asking a state audit agency to review its current permitting process.
The department also disclosed it’s launching a series of workshops to begin the process of writing new rules designed to protect communities and residents who live near oil and natural gas production sites.
In a statement Tuesday, Gov. Gavin Newsom said the initiatives are part of California’s effort to achieve its ambitious climate change and energy goals.
‘Necessary Steps’
“These are necessary steps to strengthen oversight of oil and gas extraction as we phase out our dependence on fossil fuels and focus on clean energy sources,” Newsom said.
Since May, large volumes of oil have alternately gushed or seeped out of the ground at the site of several high-pressure steam injection wells run by San Ramon-based Chevron in the Cymric field. The leak site is in the Temblor Range foothills 35 miles west of Bakersfield.
The first in a series of major above-ground flows in the field continued from May through the beginning of August and prompted a major cleanup effort.
Environmentalists have called on the Newsom administration to be more aggressive in regulating the surface expressions, and state lawmakers have scheduled a joint Assembly-Senate hearing into the incidents.

