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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
Grubb 404 04-111-01864Active Oil & gasCalNRG Operating, LLC
Grubb 406 04-111-01866Active Oil & gasCalNRG Operating, LLC
Grubb 412 04-111-01871Active Oil & gasCalNRG Operating, LLC
Grubb 413 04-111-01872Shut in InjectionCalNRG Operating, LLC
Grubb 415 04-111-01874Active Oil & gasCalNRG Operating, LLC
Grubb 2 04-111-02043Shut in InjectionCalNRG Operating, LLC
Grubb 5 04-111-02046Active Oil & gasCalNRG Operating, LLC
Grubb 7 04-111-02048Active Oil & gasCalNRG Operating, LLC
Grubb 8 04-111-02049Active Oil & gasCalNRG Operating, LLC
Grubb 11 04-111-02052Active Oil & gasCalNRG Operating, LLC
Grubb 14 04-111-02055Shut in InjectionCalNRG Operating, LLC
Grubb 18 04-111-02059Active Oil & gasCalNRG Operating, LLC
Grubb 19 04-111-02060Shut in InjectionCalNRG Operating, LLC
Grubb 20 04-111-02061Shut in InjectionCalNRG Operating, LLC
Grubb 21 04-111-02062Active InjectionCalNRG Operating, LLC
Grubb 22 04-111-02063Active Oil & gasCalNRG Operating, LLC
Grubb 23 04-111-02064Active Oil & gasCalNRG Operating, LLC
Grubb 25 04-111-02066Active Oil & gasCalNRG Operating, LLC
Grubb 27 04-111-02068Shut in InjectionCalNRG Operating, LLC
Grubb 29 04-111-02070Active InjectionCalNRG Operating, LLC
Grubb 30 04-111-02071Active Oil & gasCalNRG Operating, LLC
Grubb 35 04-111-02072Active Oil & gasCalNRG Operating, LLC
Grubb 37 04-111-02073Active Oil & gasCalNRG Operating, LLC
Grubb 46 04-111-02075Active Oil & gasCalNRG Operating, LLC
Grubb 49 04-111-02077Shut in InjectionCalNRG Operating, LLC
Grubb 54 04-111-02078Shut in InjectionCalNRG Operating, LLC
Grubb 55 04-111-02079Active Oil & gasCalNRG Operating, LLC
Grubb 58 04-111-02081Active Oil & gasCalNRG Operating, LLC
Grubb 59 04-111-02082Active Oil & gasCalNRG Operating, LLC
Grubb 62 04-111-02084Shut in InjectionCalNRG Operating, LLC
Grubb 63 04-111-02085Shut in InjectionCalNRG Operating, LLC
Grubb 64 04-111-02086Shut in InjectionCalNRG Operating, LLC
Grubb 66 04-111-02087Active Oil & gasCalNRG Operating, LLC
Grubb 67 04-111-02088Active InjectionCalNRG Operating, LLC
Grubb 68 04-111-02089Active Oil & gasCalNRG Operating, LLC
Grubb 69 04-111-02090Shut in InjectionCalNRG Operating, LLC
Grubb 71 04-111-02091Shut in InjectionCalNRG Operating, LLC
Grubb 81 04-111-02092Active InjectionCalNRG Operating, LLC
Grubb 93 04-111-02095Active Oil & gasCalNRG Operating, LLC
Grubb 453 04-111-02097Active Oil & gasCalNRG Operating, LLC
Grubb 102 04-111-02098Active Oil & gasCalNRG Operating, LLC
Grubb 139 04-111-02099Active Oil & gasCalNRG Operating, LLC
Grubb 231 04-111-02101Active InjectionCalNRG Operating, LLC
Grubb 232 04-111-02102Shut in InjectionCalNRG Operating, LLC
Grubb 233 04-111-02103Shut in InjectionCalNRG Operating, LLC
Grubb 234 04-111-02104Active Oil & gasCalNRG Operating, LLC
Grubb 236 04-111-02105Active InjectionCalNRG Operating, LLC
Grubb 241 04-111-02107Active Oil & gasCalNRG Operating, LLC
Grubb 242 04-111-02108Active Oil & gasCalNRG Operating, LLC
Grubb 243 04-111-02109Active Oil & gasCalNRG Operating, LLC
Grubb 245 04-111-02111Active Oil & gasCalNRG Operating, LLC
Grubb 250 04-111-02112Shut in InjectionCalNRG Operating, LLC
Grubb 257 04-111-02114Active InjectionCalNRG Operating, LLC
Grubb 265 04-111-02115Shut in InjectionCalNRG Operating, LLC
Grubb 270 04-111-02116Active Oil & gasCalNRG Operating, LLC
Grubb 273 04-111-02118Shut in InjectionCalNRG Operating, LLC
Grubb 275 04-111-02119Active Oil & gasCalNRG Operating, LLC
Grubb 276 04-111-02120Shut in InjectionCalNRG Operating, LLC
Grubb 277 04-111-02121Active Oil & gasCalNRG Operating, LLC
Grubb 279 04-111-02123Shut in InjectionCalNRG Operating, LLC
Grubb 280 04-111-02124Active InjectionCalNRG Operating, LLC
Grubb 284 04-111-02126Shut in InjectionCalNRG Operating, LLC
Grubb 287 04-111-02129Active Oil & gasCalNRG Operating, LLC
Grubb 289 04-111-02131Active Oil & gasCalNRG Operating, LLC
Grubb 301 04-111-02135Active Oil & gasCalNRG Operating, LLC
Grubb 304 04-111-02137Shut in InjectionCalNRG Operating, LLC
Grubb 305 04-111-02138Shut in InjectionCalNRG Operating, LLC
Grubb 307 04-111-02139Active Oil & gasCalNRG Operating, LLC
Grubb 308 04-111-02140Active Oil & gasCalNRG Operating, LLC
Grubb 309 04-111-02141Active Oil & gasCalNRG Operating, LLC
Grubb 310 04-111-02142Shut in InjectionCalNRG Operating, LLC
Grubb 311 04-111-02143Active InjectionCalNRG Operating, LLC
Grubb 312 04-111-02144Shut in InjectionCalNRG Operating, LLC
Grubb 315 04-111-02146Active Oil & gasCalNRG Operating, LLC
Grubb 316 04-111-02147Active InjectionCalNRG Operating, LLC
Grubb 317 04-111-02148Active InjectionCalNRG Operating, LLC
Grubb 318 04-111-02149Active Oil & gasCalNRG Operating, LLC
Grubb 319 04-111-02150Shut in InjectionCalNRG Operating, LLC
Grubb 321 04-111-02151Active InjectionCalNRG Operating, LLC
Grubb 322 04-111-02152Shut in InjectionCalNRG Operating, LLC
Grubb 323 04-111-02153Active Oil & gasCalNRG Operating, LLC
Grubb 501 04-111-02157Active Oil & gasCalNRG Operating, LLC
Grubb 502 04-111-02158Shut in InjectionCalNRG Operating, LLC
Grubb 503 04-111-02159Active Oil & gasCalNRG Operating, LLC
Grubb 563 04-111-02163Active Oil & gasCalNRG Operating, LLC
Grubb 564 04-111-02164Active Oil & gasCalNRG Operating, LLC
Grubb 603 04-111-02166Active Oil & gasCalNRG Operating, LLC
Grubb 604 04-111-02167Active Oil & gasCalNRG Operating, LLC
Grubb 605 04-111-02168Shut in InjectionCalNRG Operating, LLC
Grubb 606 04-111-02169Active Oil & gasCalNRG Operating, LLC
Grubb 608 04-111-02170Active Oil & gasCalNRG Operating, LLC
Grubb 609 04-111-02171Active Oil & gasCalNRG Operating, LLC
Grubb 610 04-111-02172Active Oil & gasCalNRG Operating, LLC
Grubb 701 04-111-02173Active Oil & gasCalNRG Operating, LLC
Grubb 704 04-111-02174Active Oil & gasCalNRG Operating, LLC
Grubb 705 04-111-02175Active Oil & gasCalNRG Operating, LLC
Grubb 706 04-111-02176Shut in InjectionCalNRG Operating, LLC
Grubb 707 04-111-02177Shut in InjectionCalNRG Operating, LLC
Grubb 708 04-111-02178Active Oil & gasCalNRG Operating, LLC
Grubb 709 04-111-02179Shut in InjectionCalNRG Operating, LLC

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