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WellCensus

Oil & gas wells in Orange County, CA

9,085 catalogued wells in Orange County, California, from the state regulator registry and the federal orphaned-well inventory.

Dataset updated . Derived from public data sources.

At a glance

Orange County, California has 9,085 catalogued oil & gas wells: 916 active (10%), 7,455 plugged & abandoned (82%) and 142 documented orphans. It ranks 4th of the 39 California counties WellCensus profiles by well count and holds 4% of the state's 242,471 catalogued wells.

Catalogued wells

9,085

Active

916

Plugged

7,455

Documented orphans

142

What is the status of oil and gas wells in Orange County?

10% of Orange County's wells are active, 12 percentage points below the California share of 22%. 82% are plugged & abandoned, against 60% statewide and 47% nationally. 434 wells (5%) are shut-in — unplugged but idle. 142 wells (2%) are documented orphans with no operator able to plug them, compared with 1% across California and 4% nationally. The remaining 138 carry status codes outside those classes, such as permitted or cancelled locations.

What kinds of wells are in Orange County?

By product class, 7,837 of the county's wells (86%) are oil wells, 0 (0%) gas wells and 514 (6%) injection wells. Statewide the oil share is 68% and the gas share 3%. 100% of the county's wells carry coordinates and appear on the map.

How does Orange County compare with other California counties?

Orange County has the 4th-most catalogued wells of the 39 California counties with at least 25. The median California county on WellCensus has 675 wells. The largest, Kern County, has 156,849. By documented orphans it ranks 5th in California.

Who operates wells in Orange County?

1,053 distinct operators of record are linked to wells in Orange County. 100% of the county's wells carry a link to a canonical operator profile; the rest list no operator or a name not yet resolved. Each well's page names its operator where the state publishes one.

Oil & gas wells in Orange County, CA
WellAPI # / state IDStatusTypeOperator
De Long 104-059-00955Plugged & abandonedOilR. W. Shull
South Bolsa S-7304-059-02674Plugged & abandonedOilCalifornia Resources Production Corporation
Anaheim 204-059-04930Plugged & abandonedOilChevron U.S.A. Inc.
Anaheim 1604-059-04939Plugged & abandonedOilChevron U.S.A. Inc.
State Prc 91 3304-059-20045Plugged & abandonedOilCalifornia Resources Production Corporation
Banning 42304-059-20734Plugged & abandonedOilWest Newport Oil Co.
State Prc 392 72804-259-21729ActiveOilCalifornia Resources Production Corporation
Bixby Ranch (nct-1) 104-059-07881Plugged & abandonedOther typeChevron U.S.A. Inc.
State PRC 186 104-059-07894Plugged & abandonedInjectionExxon Mobil Corporation
State PRC 186 21004-059-07895Plugged & abandonedInjectionExxon Mobil Corporation
Lease by Almeria Industries Co. 104-059-00854Plugged & abandonedOther typeAlmeria Industries Co.
Anaheim Community 48-804-059-00855Plugged & abandonedOther typeAmerada Petroleum Corporation
Irvine 63-104-059-00856Plugged & abandonedOther typeAmerada Petroleum Corporation
Lamb Community A 68-604-059-00857Plugged & abandonedOther typeAmerada Petroleum Corporation
Lease by Neal H. Anderson 104-059-00858Plugged & abandonedOther typeNeal H. Anderson
Pope 104-059-00859Plugged & abandonedOther typeAtlantic Oil Company
Costa Mesa 104-059-00861Plugged & abandonedOther typeAtlantic Richfield Company
Hamrick-Olive 104-059-00862Plugged & abandonedOther typeAtlantic Richfield Company
Peralta Hills 104-059-00863Plugged & abandonedOther typeAtlantic Richfield Company
Irvine 104-059-00866Plugged & abandonedOther typeAtlas Production, Inc.
Minney 104-059-00867Plugged & abandonedOther typeAtwood Oil Co.
Reed-Burbank 104-059-00869Plugged & abandonedOther typeLawrence Barker, Jr. & Roy Naftzger, Jr.
Bryant Ranch 504-059-00872Plugged & abandonedOther typeWm. A. Bartholomae
Lease by Gaston A. Bastanchury 104-059-00874Plugged & abandonedOther typeGaston A. Bastanchury
Darling 104-059-00876Plugged & abandonedOther typeBen Hur Refining Corp.

A sample of the county’s wells — every catalogued well has its own page. Browse all 9,085 in search → (filter by operator, status and type, then export), or find a specific well on the live map.

Frequently asked questions

How many oil and gas wells are in Orange County, CA?

Orange County, California has 9,085 catalogued oil & gas wells: 916 active, 7,455 plugged and 142 documented orphans.

How many orphaned wells are in Orange County?

142 wells in Orange County, California are documented orphans — unplugged with no solvent operator of record, the 5th-highest count among California counties.

What share of wells in Orange County are plugged?

7,455 of Orange County's 9,085 catalogued wells (82%) are plugged & abandoned, compared with 60% across California.

Which California county has the most oil and gas wells?

Kern County has the most catalogued wells of any California county on WellCensus (156,849); Orange County ranks 4th with 9,085.

How many companies operate wells in Orange County?

1,053 distinct operators of record are linked to catalogued wells in Orange County, California.

Nearby in the California rankings

About this data

Source: CalGEM WellSTAR well registry, plus the USGS United States Documented Orphaned Well Database (2026, doi 10.5066/P13FHBYG), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: WellCensus, “Oil & gas wells in Orange County, California”, https://wellcensus.com/wells/california/orange (data as of October 10, 2026).