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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
Astarta 4 04-111-01246Shut in Oil & gasAstarta Springs Sustainable Farms LLC
Astarta 8 04-111-01249Shut in Oil & gasAstarta Springs Sustainable Farms LLC
Astarta 12 04-111-01250Shut in Oil & gasAstarta Springs Sustainable Farms LLC
Astarta 7 04-111-06210Shut in Oil & gasAstarta Springs Sustainable Farms LLC
Astarta 9 04-111-06211Shut in DisposalAstarta Springs Sustainable Farms LLC
Astarta 10 04-111-06212Shut in Oil & gasAstarta Springs Sustainable Farms LLC
Astarta 11 04-111-06213Shut in DisposalAstarta Springs Sustainable Farms LLC
Astarta 13 04-111-06214Shut in DisposalAstarta Springs Sustainable Farms LLC
B & B 2 04-111-21257Active Oil & gasCalNRG Operating, LLC
BS 55 04-111-00966Active Oil & gasSilver Exploration Company
Bailey 4 04-111-01354Active Oil & gasCalNRG Operating, LLC
Bailey 5 04-111-01355Active Oil & gasCalNRG Operating, LLC
Bailey 10 04-111-01357Active Oil & gasCalNRG Operating, LLC
Bailey 9 04-111-05530Active Oil & gasCalNRG Operating, LLC
Bardsdale 1 04-111-00332Active Oil & gasThompson Oil Company, Inc.
Bardsdale 2 04-111-00333Active Oil & gasThompson Oil Company, Inc.
Barker-Ferndale 1 04-111-20423Active Oil & gasCarbon California Operating Company, LLC
Barker-Ferndale 3 04-111-20609Active Oil & gasCarbon California Operating Company, LLC
Barker-Ferndale 4 04-111-20685Active Oil & gasCarbon California Operating Company, LLC
Barnard 1 04-111-03901Active Oil & gasAera Energy LLC
Barnard 4 04-111-04276Shut in Oil & gasAera Energy LLC
Barnard 17 04-111-04289Active InjectionAera Energy LLC
Barnard 19 04-111-04291Active Oil & gasAera Energy LLC
Barnard 20 04-111-04292Active InjectionAera Energy LLC
Barnard 21 04-111-04293Shut in Oil & gasAera Energy LLC
Barnard 26 04-111-04294Active Oil & gasAera Energy LLC
Barnard 27 04-111-04295Active InjectionAera Energy LLC
Barnard 28 04-111-04296Active Oil & gasAera Energy LLC
Barnard 29W 04-111-04297Shut in InjectionAera Energy LLC
Barnard 31 04-111-04299Active OtherAera Energy LLC
Barnard 33 04-111-04300Active InjectionAera Energy LLC
Barnard 34 04-111-04301Active Oil & gasAera Energy LLC
Barnard 35 04-111-04302Active Oil & gasAera Energy LLC
Barnard 41 04-111-22349Active Oil & gasAera Energy LLC
Barnard 43 04-111-22355Active InjectionAera Energy LLC
Basenberg 1 04-111-20076Active Oil & gasCarbon California Operating Company, LLC
Basenberg 3 04-111-20176Shut in DisposalCarbon California Operating Company, LLC
Basenberg 4 04-111-20187Shut in Oil & gasCarbon California Operating Company, LLC
Basolo 4A 04-111-02903Active Oil & gasChemassist, L.L.C.
Basolo 5 04-111-02904Active Oil & gasChemassist, L.L.C.
Basolo 6 04-111-02905Active Oil & gasChemassist, L.L.C.
Basolo 9 04-111-02908Active Oil & gasChemassist, L.L.C.
Big Chief 1 04-111-06122Shut in Dry holeB. A. Laselle & J.L. Van Disse
Big Mountain 2 04-111-20010Shut in InjectionWest Energy Operating, LLC
Big Mountain 1 04-111-20012Active Oil & gasWest Energy Operating, LLC
Big Mountain A 1-19 04-111-20369Active Oil & gasWest Energy Operating, LLC
Big Mountain A 2-19 04-111-20419Shut in Oil & gasWest Energy Operating, LLC
Big Mountain A 5-19 04-111-20445Active Oil & gasWest Energy Operating, LLC
Big Mountain A 4-19 04-111-21521Active Oil & gasWest Energy Operating, LLC
Big Mountain A 6-19 04-111-21643Shut in Oil & gasWest Energy Operating, LLC
Big Mountain A 7-19 04-111-21644Shut in Oil & gasWest Energy Operating, LLC
Big Mountain A 9-19 04-111-21645Active Oil & gasWest Energy Operating, LLC
Big Mountain A 10-19 04-111-21831Active Oil & gasWest Energy Operating, LLC
Big Mountain A 11-19 04-111-21833Active Oil & gasWest Energy Operating, LLC
Big Mountain A 12-19 04-111-21834Shut in Oil & gasWest Energy Operating, LLC
Black 101 04-111-01463Active Oil & gasThompson Oil Company, Inc.
Black 102 04-111-01464Active Oil & gasThompson Oil Company, Inc.
Black 103 04-111-01465Shut in Oil & gasThompson Oil Company, Inc.
Black 104 04-111-01466Active Oil & gasThompson Oil Company, Inc.
Black 106 04-111-01467Active Oil & gasThompson Oil Company, Inc.
Black 105 04-111-01468Active Oil & gasThompson Oil Company, Inc.
Black 1 04-111-01480Active Oil & gasCbase Corporation
Black 1-A 04-111-01481Active Oil & gasCbase Corporation
Black 2 04-111-01482Active Oil & gasCbase Corporation
Black 3 04-111-01483Active Oil & gasCbase Corporation
Black 3-A 04-111-01484Active Oil & gasCbase Corporation
Black 4 04-111-01485Active Oil & gasCbase Corporation
Black 6 04-111-01487Active Oil & gasCbase Corporation
Black 7 04-111-01488Active Oil & gasCbase Corporation
Black 8 04-111-01489Active Oil & gasCbase Corporation
Black 9A 04-111-01490Active Oil & gasCbase Corporation
Black 11 04-111-01492Active Oil & gasCbase Corporation
Black 12 04-111-01493Active Oil & gasCbase Corporation
Black 14 04-111-01495Active Oil & gasCbase Corporation
Black 15 04-111-01496Active Oil & gasCbase Corporation
Black 16 04-111-01497Active Oil & gasCbase Corporation
Bonebrake 81-6 04-111-20163Active Oil & gasCarbon California Operating Company, LLC
Bonebrake A 1 04-111-02626Active Oil & gasCarbon California Operating Company, LLC
Bonebrake A 2 04-111-02627Shut in Oil & gasCarbon California Operating Company, LLC
Bonebrake A 3 04-111-02628Shut in Oil & gasCarbon California Operating Company, LLC
Bonebrake A 4 04-111-02629Shut in Oil & gasCarbon California Operating Company, LLC
Bonebrake A 43-6 04-111-20520Active Oil & gasCarbon California Operating Company, LLC
Bonebrake A 33-6 04-111-20534Active Oil & gasCarbon California Operating Company, LLC
Bonebrake A 21-6 04-111-21005Active Oil & gasCarbon California Operating Company, LLC
Bonebrake A 34-6 04-111-21006Active Oil & gasCarbon California Operating Company, LLC
Bonebrake B 72-6 04-111-20179Active Oil & gasCarbon California Operating Company, LLC
Bonebrake B 62-6 04-111-20195Active Oil & gasCarbon California Operating Company, LLC
Bonebrake B 71-6 04-111-20201Active Oil & gasCarbon California Operating Company, LLC
Bonebrake B 52-6 04-111-20207Active Oil & gasCarbon California Operating Company, LLC
Bonebrake B 61-6 04-111-20222Shut in Oil & gasCarbon California Operating Company, LLC
Bonebrake B 32-6 04-111-20542Active Oil & gasCarbon California Operating Company, LLC
Bonebrake B 53-6 04-111-20552Active Oil & gasCarbon California Operating Company, LLC
Bonebrake B 51-6 04-111-21258Active Oil & gasCarbon California Operating Company, LLC
Bonebrake B 41-6 04-111-21319Active Oil & gasCarbon California Operating Company, LLC
Bowman A-1 04-111-20771Active Oil & gasCarbon California Operating Company, LLC
Bowman A-2 04-111-20808Active DisposalCarbon California Operating Company, LLC
Broad Oaks 113 04-111-01575Active Oil & gasCalNRG Operating, LLC
Broad Oaks 101 04-111-02484Active Oil & gasCalNRG Operating, LLC
Broad Oaks 102 04-111-02485Active Oil & gasCalNRG Operating, LLC
Broad Oaks 103 04-111-02486Active Oil & gasCalNRG Operating, LLC

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