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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 |
|---|
| Grubb 801 |
04-111-02180 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 802 |
04-111-02181 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 803 |
04-111-02182 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 248 |
04-111-05513 | Active |
Injection | CalNRG Operating, LLC |
| Grubb 303 |
04-111-05514 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 53 |
04-111-05515 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 74 |
04-111-05517 | Active |
Injection | CalNRG Operating, LLC |
| Grubb 103 |
04-111-20063 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 451 |
04-111-20091 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 455 |
04-111-20105 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 452 |
04-111-20106 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 454 |
04-111-20109 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 456 |
04-111-20128 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 457 |
04-111-20134 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 458 |
04-111-20135 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 459 |
04-111-20139 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 460 |
04-111-20140 | Active |
Injection | CalNRG Operating, LLC |
| Grubb 462 |
04-111-20154 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 461 |
04-111-20155 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 151 |
04-111-20158 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 463 |
04-111-20171 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 464 |
04-111-20192 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 153 |
04-111-20209 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 154 |
04-111-20215 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 110 |
04-111-20236 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 155 |
04-111-20237 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 156 |
04-111-20242 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 157 |
04-111-20243 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 159 |
04-111-20265 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 160 |
04-111-20281 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 351 |
04-111-20285 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 111 |
04-111-20300 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 163 |
04-111-20324 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 112 |
04-111-20341 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 166 |
04-111-20352 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 167 |
04-111-20355 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 352 |
04-111-20357 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 168 |
04-111-20376 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 353 |
04-111-20397 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 180 |
04-111-20401 | Active |
Injection | CalNRG Operating, LLC |
| Grubb 354 |
04-111-20408 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 172 |
04-111-20435 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 181 |
04-111-20436 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 182 |
04-111-20459 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 356 |
04-111-20480 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 295 |
04-111-20481 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 296 |
04-111-20483 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 357 |
04-111-20484 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 358 |
04-111-20485 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 95 |
04-111-20502 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 96 |
04-111-20512 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 359 |
04-111-20549 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 360 |
04-111-20550 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 361 |
04-111-20551 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 97 |
04-111-20553 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 50 |
04-111-20568 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 362 |
04-111-20584 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 363 |
04-111-20585 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 113 |
04-111-20596 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 114 |
04-111-20635 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 98 |
04-111-20663 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 115 |
04-111-20675 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 365 |
04-111-20758 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 364 |
04-111-20763 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 298 |
04-111-20767 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 366 |
04-111-20778 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 367 |
04-111-20783 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 368 |
04-111-20784 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 369 |
04-111-20785 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 370 |
04-111-20786 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 372 |
04-111-20788 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 299 |
04-111-20792 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 300 |
04-111-20806 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 202 |
04-111-20836 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 203 |
04-111-20884 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 200 |
04-111-20898 | Active |
Injection | CalNRG Operating, LLC |
| Grubb 205 |
04-111-20939 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 100 |
04-111-20963 | Active |
Injection | CalNRG Operating, LLC |
| Grubb 374 |
04-111-20980 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 341 |
04-111-21037 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 332 |
04-111-21048 | Active |
Injection | CalNRG Operating, LLC |
| Grubb 339 |
04-111-21052 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 329 |
04-111-21057 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 334 |
04-111-21058 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 328 |
04-111-21062 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 340 |
04-111-21063 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 333 |
04-111-21067 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 337 |
04-111-21068 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 330 |
04-111-21077 | Active |
Injection | CalNRG Operating, LLC |
| Grubb 336 |
04-111-21079 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 338 |
04-111-21080 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 327 |
04-111-21097 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 375 |
04-111-21120 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 377 |
04-111-21121 | Active |
Injection | CalNRG Operating, LLC |
| Grubb 380 |
04-111-21150 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 204 |
04-111-21155 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 376 |
04-111-21171 | Active |
Oil & gas | CalNRG Operating, LLC |
| Grubb 343 |
04-111-21201 | Active |
Injection | CalNRG Operating, LLC |
| Grubb 344 |
04-111-21222 | Shut in |
Injection | CalNRG Operating, LLC |
| Grubb 175 |
04-111-21223 | Active |
Oil & gas | CalNRG Operating, LLC |