Los Angeles County is suing four oil and gas companies for allegedly failing to plug idle oil wells in the large Inglewood Oil Field near Baldwin Hills.
The lawsuit filed Wednesday in Los Angeles Superior Court charges Sentinel Peak Resources California, Freeport-McMoran Oil & Gas, Plains Resources and Chevron U.S.A. with failing to properly clean up at least 227 idle and exhausted wells in the oil field. The wells “continue to leak toxic pollutants into the air, land, and water and present unacceptable dangers to human health, safety, and the environment,” the complaint says.
The lawsuit aims to force the operators to address dangers posed by the unplugged wells. More than a million people live within five miles of the Inglewood oil field.
“We are making it clear to these oil companies that Los Angeles County is done waiting and that we remain unwavering in our commitment to protect residents from the harmful impacts of oil drilling,” said Supervisor Holly Mitchell, whose district includes the oil field, in a statement. “Plugging idle oil and gas wells — so they no longer emit toxins into communities that have been on the front lines of environmental injustice for generations — is not only the right thing to do, it’s the law.”
Sentinel is the oil field’s current operator, while Freeport-McMoran Oil & Gas, Plains Resources and Chevron U.S.A. were past operators. Energy companies often temporarily stop pumping from a well and leave it idle waiting for market conditions to improve.
In a statement, a representative for Sentinel Peak said the company is aware of the lawsuit and that the “claims are entirely without merit.”
“This suit appears to be an attempt to generate sensationalized publicity rather than adjudicate a legitimate legal matter,” general counsel Erin Gleaton said in an email. “We have full confidence in our position, supported by the facts and our record of regulatory compliance.”
Chevron said it does not comment on pending legal matters. The others did not immediately respond to a request for comment.
State regulations define “idle wells” as wells that have not produced oil or natural gas for 24 consecutive months, and “exhausted wells” as those that yield an average daily production of two barrels of oil or less. California is home to thousands of such wells, according to the California Department of Conservation.
Idle and exhausted wells can continue to emit hazardous air pollutants such as benzene, as well as a methane, a planet-warming greenhouse gas. Unplugged wells can also leak oil, benzene, chloride, heavy metals and arsenic into groundwater.
Plugging idle and exhausted wells includes removing surface valves and piping, pumping large amounts of cement down the hole and reclaiming the surrounding ground. The process can be expensive, averaging an estimated $923,200 per well in Los Angeles County, according to the California Geologic Energy Management Division, which notes that the costs could fall to taxpayers if the defendants do not take action. This 2023 estimate from CalGEM is about three times higher than other parts of the state due to the complexity of sealing wells and remediating the surface in densely populated urban areas.
The suit seeks a court order requiring the wells to be properly plugged, as well as abatement for the harms caused by their pollution. It seeks civil penalties of up to $2,500 per day for each well that is in violation of the law.
Residents living near oil fields have long reported adverse health impacts such as respiratory, reproductive and cardiovascular issues. In Los Angeles, many of these risks disproportionately affect low-income communities and communities of color.
“The goal of this lawsuit is to force these oil companies to clean up their mess and stop business practices that disproportionately impact people of color living near these oil wells,” County Counsel Dawyn Harrison said in a statement. “My office is determined to achieve environmental justice for communities impacted by these oil wells and to prevent taxpayers from being stuck with a huge cleanup bill.”
The lawsuit is part of L.A. County’s larger effort to phase out oil drilling, including a high-profile ordinance that sought to ban new oil wells and even require existing ones to stop production within 20 years. Oil companies successfully challenged it and it was blocked in 2024.
Rita Kampalath, the county’s chief sustainability officer, said the county remains “dedicated to moving toward a fossil fuel-free L.A. County.”
“This lawsuit demonstrates the County’s commitment to realizing our sustainability goals by addressing the impacts of the fossil fuel industry on front line communities and the environment,” Kampalath said.
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