California county approves onshore oil drilling ban as legal challenge takes shape

Santa Barbara blocks new oil drilling

Santa Barbara County supervisors voted 3-2 on Sept. 15 to prohibit new onshore oil and gas wells in unincorporated areas of the county and block the reentry of previously abandoned wells.

Existing operations can continue, and the new restrictions do not undo projects already authorized under vested permits or approved drilling plans. County leaders are separately considering a longer-term phaseout of existing onshore oil and gas operations, a process expected to take several years.

A drilling pause becomes official

New onshore drilling has already been largely dormant in Santa Barbara County. No new proposal has been approved there since 2014. The latest vote turns that long pause into a formal county policy.

Existing oil production is concentrated in North County. The Sept. 15 decision focuses only on new drilling proposals. It does not immediately change operations at producing sites. That distinction could become important as the county considers future steps.

Supervisors split over the plan

The supervisors did not agree on the drilling ban. Three members voted to approve the measure, while two voted against it. The disagreement reflected different views about the county’s oil industry.

Supervisor Bob Nelson opposed the measure. His district includes much of the county’s oil activity. Supervisor Joan Hartmann supported the ban as part of efforts to wind down onshore oil production. The vote showed how divided the issue remains locally.

Existing wells face a longer process

Stopping new drilling is only one part of the county’s broader discussion. Changing rules for existing wells would require a much longer process. County staff told supervisors it could take three years just to study an amortization period.

An amortization period would gradually end current operations instead of closing them immediately. County officials would also need to prepare an environmental impact report. That means any phaseout would involve more research and public review.

Health costs entered the debate

Supporters of tighter oil restrictions raised concerns about pollution from local production. At the Santa Maria hearing, environmental advocates cited research involving UC Santa Barbara scholars on the potential health effects of phasing out oil and gas operations.

The analysis estimated that a phaseout could avoid roughly $54 million to $81 million in mortality-related costs through 2045, largely by reducing exposure to air pollution associated with oil production. The estimate formed part of supporters’ argument for a longer-term transition, while opponents challenged the broader economic and energy consequences.

Oil workers raised economic concerns

The debate also focused heavily on jobs. Employees of oil companies and related businesses told supervisors their work provides well-paid employment, arguing that restrictions on local production could have direct economic effects.

Opponents also pointed to California’s reliance on crude oil from outside the state. California Energy Commission data show that in 2025, 61.1% of crude supplied to state refineries came from foreign sources, while another 16% came from Alaska. Opponents argued that further reductions in local production could increase dependence on outside supplies.

Fun fact: Roughly 70% of the oil consumed in California is imported, according to testimony reported by The Santa Barbara Independent.

Asphalt production adds another concern

One Santa Maria operation received special attention during the hearing. Opponents said it could eventually be affected by efforts to phase out local oil production. The facility is one of only four in California that produce asphalt in significant quantities.

Asphalt is widely used for road construction and repairs. Opponents warned that losing a major local source could affect road repair costs. The concern adds another layer to the oil debate. It shows how local production can connect to everyday infrastructure needs.

More than 50 people spoke

The Sept. 15 hearing drew strong public interest. At the Santa Maria hearing, 53 people signed up to speak. Speakers included environmental advocates, oil workers and others concerned about the county’s economy.

Their comments reflected the competing interests surrounding the decision. Some focused on pollution and the long-term future of fossil fuels. Others emphasized jobs, energy supplies and industrial needs. The large turnout showed how closely residents are watching the county’s next steps.

A legal fight may be coming

Critics of the board’s decision have already raised legal concerns. They argued the county should have completed an environmental review for the new drilling ban. They also questioned separating that review from a possible future phaseout.

That argument could become part of a court challenge. The county has treated the new-drilling ban and existing-well changes as separate steps. Supporters appear to view that approach as a way to move carefully. The legal questions could influence what happens next.

Why the vote matters beyond oil

Santa Barbara’s decision reaches beyond one county. California has spent years debating how to reduce fossil fuel use while maintaining reliable energy supplies. Local governments can play a major role in deciding where and how development happens.

The county’s action could draw attention from other California communities. Supporters may point to local control and environmental concerns. Opponents may focus on jobs, imports and industrial costs. The disagreement reflects a larger challenge facing energy policy.

Existing production remains in place

The latest vote should not be confused with an immediate oil shutdown. Current onshore wells were not ordered to stop operating. Their future would require another process involving county staff and environmental review.

That distinction gives existing operators more time before any potential phaseout. It also gives county officials time to study the effects of different options. The proposed three-year study would come before deciding an amortization period.

The next steps could take years

County officials now face a longer process after approving the new drilling ban. Staff would need to study how existing operations might be handled. An environmental review would also be required before a broader phaseout could move forward.

Those steps mean the Sept. 15 vote is not the end of the dispute. It is an opening move in a much larger policy debate. Legal challenges could add more time to the process. Residents, workers, and businesses will be watching the county’s next decisions closely.

Could a separate oil dispute involving a Texas-bound tanker reveal another side of America’s energy challenges? Find out what happened to the tanker.

Santa Barbara’s oil future is unsettled

Santa Barbara County has formally prohibited new onshore oil and gas wells in unincorporated areas, along with the reentry of previously abandoned wells. Existing production and already authorized projects can continue, leaving the future of current operations unresolved.

Any broader phaseout would require years of study, environmental review, and additional county action. Supporters point to public-health and environmental concerns, while opponents emphasize jobs, outside oil supplies, and asphalt production.

For Santa Barbara County, the Sept. 15 vote begins a new phase in the local oil debate rather than ending oil production altogether.

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What do you think about Santa Barbara County’s decision on new oil drilling? Share your thoughts in the comments and join the conversation.

This slideshow was made with AI assistance and human editing.

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