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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

OperatorActiveWells here
CalNRG Operating, LLC1,1162,121
Aera Energy LLC6541,833
Carbon California Operating Company, LLC424668
Cbase Corporation3336
Thompson Oil Company, Inc.3248
The Termo Company2366
West Energy Operating, LLC2353
Chemassist, L.L.C.2132
Renaissance Petroleum, LLC1516
Patriot Resources, LLC1418
ABA Energy Corporation1128
Ojai Oil Company1118
Temescal Resources, LLC912
Silver Exploration Company77
West Coast Operators Inc.66
Res-Tech, Inc.510
Concordia Resources, Inc.46
Crazy J Oil, LLC44
SM&O, LLC44
Ample Resources, Inc.314
LBTH Inc.35
T. E. Adams Petroleum Corp.211
Rose Katherine Stone22
Yoelin Family Trust13
Chevron U.S.A. Inc.0444

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
Broad Oaks 104 04-111-02487Active Oil & gasCalNRG Operating, LLC
Broad Oaks 105 04-111-02488Active Oil & gasCalNRG Operating, LLC
Broad Oaks 106 04-111-02489Active Oil & gasCalNRG Operating, LLC
Broad Oaks 107 04-111-02490Active Oil & gasCalNRG Operating, LLC
Broad Oaks 108 04-111-02491Active Oil & gasCalNRG Operating, LLC
Broad Oaks 109 04-111-02492Active Oil & gasCalNRG Operating, LLC
Broad Oaks 110 04-111-02493Active Oil & gasCalNRG Operating, LLC
Broad Oaks 111 04-111-02494Active Oil & gasCalNRG Operating, LLC
Broad Oaks 112 04-111-02495Active Oil & gasCalNRG Operating, LLC
Broad Oaks 114 04-111-02497Shut in DisposalCalNRG Operating, LLC
Broad Oaks 115 04-111-02498Active Oil & gasCalNRG Operating, LLC
Broad Oaks 116 04-111-02499Active Oil & gasCalNRG Operating, LLC
Broad Oaks 119 04-111-20334Active Oil & gasCalNRG Operating, LLC
Burson 1 04-111-00317Shut in Dry holeHardly Able Oil Co. (Pre 1977)
Burson 2 04-111-00318Shut in Dry holeHardly Able Oil Co. (Pre 1977)
Burson 1 04-111-00352Active Oil & gasThompson Oil Company, Inc.
Burson 3 04-111-00393Active Oil & gasThompson Oil Company, Inc.
C-S 1 04-111-03115Active Oil & gasThompson Oil Company, Inc.
C. & H. 5 04-111-05470Shut in InjectionSouth Fork Ranch, LLC
C. & H. 6 04-111-05471Shut in Oil & gasSouth Fork Ranch, LLC
C. & H. 7 04-111-05472Shut in Oil & gasSouth Fork Ranch, LLC
C. & H. 8 04-111-05473Shut in Oil & gasSouth Fork Ranch, LLC
C. & H. 9 04-111-05474Shut in InjectionSouth Fork Ranch, LLC
C. & H. 12 04-111-05476Shut in Oil & gasCalNRG Operating, LLC
C. & H. 13 04-111-05477Shut in InjectionSouth Fork Ranch, LLC
C. & H. 14 04-111-05478Shut in UnknownSouth Fork Ranch, LLC
C. & H. 18 04-111-22181Shut in Oil & gasCalNRG Operating, LLC
Cal Pac 88-31 04-111-20047Active Oil & gasCarbon California Operating Company, LLC
Cal Pac 58-31 04-111-20349Active Oil & gasCarbon California Operating Company, LLC
Cal Pac 77-31 04-111-20907Active Oil & gasCarbon California Operating Company, LLC
Cal Pac 67-31 04-111-20964Active Oil & gasCarbon California Operating Company, LLC
Cal Pac 78-31 04-111-20965Shut in Oil & gasCarbon California Operating Company, LLC
Cal Pac 87-31 04-111-20966Active Oil & gasCarbon California Operating Company, LLC
Cal Pac 66-31 04-111-20988Active Oil & gasCarbon California Operating Company, LLC
Calco-Schieferle 2 04-111-03200Active Oil & gasCalNRG Operating, LLC
Calco-Schieferle 3 04-111-03201Active Oil & gasCalNRG Operating, LLC
Calco-Schieferle 4 04-111-03202Active Oil & gasCalNRG Operating, LLC
Calco-Schieferle 5 04-111-03203Active Oil & gasCalNRG Operating, LLC
Calco-Schieferle 6 04-111-03204Active Oil & gasCalNRG Operating, LLC
Caldwell & Snyder 1 04-111-03756Active Oil & gasCalNRG Operating, LLC
Calumet B-1 04-111-02876Shut in Oil & gasJoro Inc.
Calumet B-2 04-111-02877Shut in Oil & gasJoro Inc.
Calumet 17 04-111-21164Shut in Oil & gasJoro Inc.
Calumet 19 04-111-21182Shut in Oil & gasJoro Inc.
Calumet 21 04-111-21202Shut in Oil & gasJoro Inc.
Calzoil 1 04-111-00339Active Oil & gasCalNRG Operating, LLC
Capitol Crude 2 04-111-00395Active Oil & gasCalNRG Operating, LLC
Capitol Crude 3 04-111-00396Active Oil & gasCalNRG Operating, LLC
Capitol Crude 4 04-111-00397Active Oil & gasCalNRG Operating, LLC
Capitol Crude 5 04-111-00398Active Oil & gasCalNRG Operating, LLC
Capitol Crude 6 04-111-00399Active Oil & gasCalNRG Operating, LLC
Capitol Crude 7 04-111-00400Active Oil & gasCalNRG Operating, LLC
Capitol Crude 9 04-111-00402Active Oil & gasCalNRG Operating, LLC
Capitol Crude 12 04-111-00405Active Oil & gasCalNRG Operating, LLC
Capitol Crude 14 04-111-00407Active Oil & gasCalNRG Operating, LLC
Capitol Crude 15 04-111-00408Active Oil & gasCalNRG Operating, LLC
Casperson 1 04-111-03205Active Oil & gasCalNRG Operating, LLC
Casperson 3 04-111-03207Active Oil & gasCalNRG Operating, LLC
Casperson 4 04-111-03208Active Oil & gasCalNRG Operating, LLC
Casperson 5 04-111-03209Active Oil & gasCalNRG Operating, LLC
Casperson 6 04-111-03210Active Oil & gasCalNRG Operating, LLC
Casperson 7 04-111-03211Active Oil & gasCalNRG Operating, LLC
Casperson 8 04-111-03212Active Oil & gasCalNRG Operating, LLC
Casperson 10 04-111-03214Active Oil & gasCalNRG Operating, LLC
Casperson 11 04-111-03215Active Oil & gasCalNRG Operating, LLC
Casperson 12 04-111-03216Active Oil & gasCalNRG Operating, LLC
Casperson 13 04-111-03217Active Oil & gasCalNRG Operating, LLC
Casperson 15 04-111-03219Active Oil & gasCalNRG Operating, LLC
Casperson 16 04-111-03220Active Oil & gasCalNRG Operating, LLC
Casperson 17 04-111-03221Active Oil & gasCalNRG Operating, LLC
Casperson 18 04-111-03222Active Oil & gasCalNRG Operating, LLC
Casperson 19 04-111-03223Active Oil & gasCalNRG Operating, LLC
Casperson 21 04-111-03225Active Oil & gasCalNRG Operating, LLC
Casperson 22 04-111-03226Active Oil & gasCalNRG Operating, LLC
Casperson 24 04-111-03228Active Oil & gasCalNRG Operating, LLC
Casperson 26 04-111-03230Active Oil & gasCalNRG Operating, LLC
Casperson 28 04-111-03232Active Oil & gasCalNRG Operating, LLC
Casperson 29 04-111-03233Active Oil & gasCalNRG Operating, LLC
Casperson 31 04-111-03235Shut in Oil & gasCalNRG Operating, LLC
Casperson 33 04-111-03237Active Oil & gasCalNRG Operating, LLC
Casperson 35 04-111-03239Active Oil & gasCalNRG Operating, LLC
Casperson 36 04-111-03240Shut in Oil & gasCalNRG Operating, LLC
Cates 4 04-111-00713Shut in Oil & gasArgo Petroleum Corp.
Cates 5 04-111-00714Shut in Oil & gasArgo Petroleum Corp.
Central 1 04-111-02591Shut in Oil & gasCentral Lease, Inc.
Central 3 04-111-02593Shut in Oil & gasChemassist, L.L.C.
Central 4 04-111-02594Shut in Oil & gasCentral Lease, Inc.
Central 5 04-111-02595Shut in Oil & gasCentral Lease, Inc.
Central 6 04-111-02596Shut in Oil & gasChemassist, L.L.C.
Central 9 04-111-02598Shut in Oil & gasChemassist, L.L.C.
Central 11 04-111-02600Shut in Oil & gasChemassist, L.L.C.
Central 7 04-111-02601Shut in Oil & gasChemassist, L.L.C.
Chase 2 04-111-01030Shut in DisposalCalNRG Operating, LLC
Chodar 83-1 04-111-21127Active Oil & gasCarbon California Operating Company, LLC
Chodar 74-1 04-111-21266Active Oil & gasCarbon California Operating Company, LLC
Citrus 3 04-111-04324Shut in Oil & gasAera Energy LLC
Citrus 4 04-111-04326Active Oil & gasAera Energy LLC
Converse 1 04-111-05480Shut in Oil & gasCalNRG Operating, LLC
Converse 2 04-111-05481Shut in Oil & gasSouth Fork Ranch, LLC
Converse 4 04-111-05483Shut in Oil & gasSouth Fork Ranch, LLC

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