Oil & gas wells in Ventura County, CA
8,532 catalogued wells in Ventura County, California, from the state regulator registry and the federal orphaned-well inventory.
Dataset updated . Derived from public data sources.
At a glance
Ventura County, California has 8,532 catalogued oil & gas wells: 2,418 active (28%), 4,619 plugged & abandoned (54%) and 302 documented orphans. It ranks 5th of the 39 California counties WellCensus profiles by well count and holds 4% of the state's 242,471 catalogued wells.
Catalogued wells
8,532
Active
2,418
Plugged
4,619
Documented orphans
302
What is the status of oil and gas wells in Ventura County?
28% of Ventura County's wells are active, 6 percentage points above the California share of 22%. 54% are plugged & abandoned, against 60% statewide and 47% nationally. 957 wells (11%) are shut-in — unplugged but idle. 302 wells (4%) are documented orphans with no operator able to plug them, compared with 1% across California and 4% nationally. The remaining 236 carry status codes outside those classes, such as permitted or cancelled locations.
What kinds of wells are in Ventura County?
By product class, 6,015 of the county's wells (70%) are oil wells, 5 (0.1%) gas wells and 908 (11%) 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 Ventura County compare with other California counties?
Ventura County has the 5th-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 3rd in California.
Who operates wells in Ventura County?
846 distinct operators of record are linked to wells in Ventura 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.
Wells in Ventura County
🔒 Create a free account to export CSV| Well | API # / state ID | Status | Type | Operator |
|---|---|---|---|---|
| A 1 | 04-111-00002 | Plugged & abandoned | Oil | PRE Resources, LLC |
| F1 1 | 04-111-00016 | Plugged & abandoned | Oil | Chevron U.S.A. Inc. |
| S 8 | 04-111-00054 | Plugged & abandoned | Oil | Chevron U.S.A. Inc. |
| Viking 2 | 04-111-00538 | Plugged & abandoned | Oil | Burns Oil Co. |
| Viking 3 | 04-111-00539 | Plugged & abandoned | Oil | Burns Oil Co. |
| Well No. 3 | 04-111-00562 | Plugged & abandoned | Other type | Exxon Mobil Corporation |
| Well No. 2 | 04-111-00582 | Plugged & abandoned | Oil | Cameron Oil Co. |
| Dolly Hunter 2 | 04-111-00597 | Plugged & abandoned | Oil | C. D. Draucker |
| Well No. 3 | 04-111-00604 | Plugged & abandoned | Oil | Eureka Crude Oil Co. |
| Well No. 1 | 04-111-00620 | Plugged & abandoned | Oil | Schell & Jennings |
| Well No. 9 | 04-111-00628 | Plugged & abandoned | Oil | Schell & Jennings |
| Marr Ranch 13 | 04-111-00102 | Plugged & abandoned | Oil | Condor Oil Company Inc. |
| Marr Ranch 27 | 04-111-00112 | Plugged & abandoned | Oil | MH Marr |
| Oakridge 24-10 | 04-111-00153 | Shut-in | Injection | CalNRG Operating, LLC |
| Seltzer 1 | 04-111-00190 | Plugged & abandoned | Injection | Carbon California Operating Company, LLC |
| N. L. & F. W-9 | 04-111-00208 | Plugged & abandoned | Other type | The Newhall Land and Farming Company, LLC |
| Taylor 477 | 04-111-00285 | Plugged & abandoned | Injection | Aera Energy LLC |
| Laubacher 3 | 04-111-00727 | Plugged & abandoned | Oil | Arco Oil and Gas Co. |
| Leonard 1 | 04-111-00749 | Plugged & abandoned | Other type | Shell Western E&P Inc. |
| McGrath 4 51-13 | 04-111-00767 | Plugged & abandoned | Injection | Chevron U.S.A. Inc. |
| Hopper 13 | 04-111-02188 | Plugged & abandoned | Injection | Dcor, LLC |
| Grubb 803 | 04-111-02182 | Active | Oil | CalNRG Operating, LLC |
| Shiells 23 | 04-111-02290 | Plugged & abandoned | Other type | CalNRG Operating, LLC |
| Shiells 45 | 04-111-02298 | Plugged & abandoned | Oil | CalNRG Operating, LLC |
| E. P. Clark 8 | 04-111-02314 | Plugged & abandoned | Other type | Arco Western Energy Co. |
A sample of the county’s wells — every catalogued well has its own page. Browse all 8,532 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 Ventura County, CA?
Ventura County, California has 8,532 catalogued oil & gas wells: 2,418 active, 4,619 plugged and 302 documented orphans.
How many orphaned wells are in Ventura County?
302 wells in Ventura County, California are documented orphans — unplugged with no solvent operator of record, the 3rd-highest count among California counties.
What share of wells in Ventura County are plugged?
4,619 of Ventura County's 8,532 catalogued wells (54%) 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); Ventura County ranks 5th with 8,532.
How many companies operate wells in Ventura County?
846 distinct operators of record are linked to catalogued wells in Ventura County, California.
Nearby in the California rankings
- Oil & gas wells in California· 242,471 wells
- Los Angeles County, CA· 24,332 wells
- Fresno County, CA· 12,486 wells
- Orange County, CA· 9,085 wells
- Santa Barbara County, CA· 6,814 wells
- Monterey County, CA· 3,871 wells
- San Luis Obispo County, CA· 2,016 wells
- Orphaned wells by state and county· 164,816 nationally
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 Ventura County, California”, https://wellcensus.com/wells/california/ventura (data as of October 10, 2026).