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Ventura County, CA oil and gas wells
8,533 wells: 2,427 active, 4,775 plugged, run by 849 operators.
Figures from the California Geologic Energy Management Division (CalGEM), updated 2026-10-19.
Top operators in Ventura
| Operator | Active | Wells here |
|---|
| CalNRG Operating, LLC | 1,116 | 2,121 |
| Aera Energy LLC | 654 | 1,833 |
| Carbon California Operating Company, LLC | 424 | 668 |
| Cbase Corporation | 33 | 36 |
| Thompson Oil Company, Inc. | 32 | 48 |
| The Termo Company | 23 | 66 |
| West Energy Operating, LLC | 23 | 53 |
| Chemassist, L.L.C. | 21 | 32 |
| Renaissance Petroleum, LLC | 15 | 16 |
| Patriot Resources, LLC | 14 | 18 |
| ABA Energy Corporation | 11 | 28 |
| Ojai Oil Company | 11 | 18 |
| Temescal Resources, LLC | 9 | 12 |
| Silver Exploration Company | 7 | 7 |
| West Coast Operators Inc. | 6 | 6 |
| Res-Tech, Inc. | 5 | 10 |
| Concordia Resources, Inc. | 4 | 6 |
| Crazy J Oil, LLC | 4 | 4 |
| SM&O, LLC | 4 | 4 |
| Ample Resources, Inc. | 3 | 14 |
| LBTH Inc. | 3 | 5 |
| T. E. Adams Petroleum Corp. | 2 | 11 |
| Rose Katherine Stone | 2 | 2 |
| Yoelin Family Trust | 1 | 3 |
| Chevron U.S.A. Inc. | 0 | 444 |
Wells
Not plugged · All wells · Plugged · Orphaned
| Well | API / ID | Status | Type | Operator |
|---|
| No wells match. |