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San Joaquin County, CA oil and gas wells

1,249 wells: 100 active, 1,007 plugged, run by 239 operators.

Figures from the California Geologic Energy Management Division (CalGEM), updated 2026-10-19.

Top operators in San Joaquin

OperatorActiveWells here
Pacific Gas and Electric Company73123
Lodi Gas Storage, L.L.C.2230
California Resources Production Corporation4160
Fisk Family Farms , LLC12
Chevron U.S.A. Inc.098
Great Basins Petroleum Co.052
Arcady Oil Company043
Union Oil Company of California032
Phillips Petroleum Company022
Amerada Hess Corp.021
Occidental Petroleum Corporation018
Atlantic Oil Company016
UMC Petroleum Corp.016
ABA Energy Corporation014
Towne Exploration Company, LP014
Arco Western Energy Co.013
Capitol Oil Corporation013
Shell Western E&P Inc.013
TXO Production Corp.013
Exxon Mobil Corporation012
John M. Young012
EOG Resources, Inc.011
Petrogulf Corporation011
Porter Sesnon et al011
Venoco, LLC011

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
Occidental-Hays 67X-24 04-077-00117Shut in GasCalifornia Resources Production Corporation
Occidental-Whiting 87X-23 04-077-00121Shut in GasCalifornia Resources Production Corporation
Pagnucci 1-34 04-077-20667Shut in GasCalifornia Resources Production Corporation
Pagnucci 2-35 04-077-20727Shut in GasCalifornia Resources Production Corporation
Paulson 14-9 04-077-20127Shut in GasCalifornia Resources Production Corporation
Perrin 22-25 04-077-20007Shut in GasCalifornia Resources Production Corporation
Phillips Yamada Bros. 1 04-077-20254Shut in GasCalifornia Resources Production Corporation
Pool B 2 04-077-20285Shut in GasCalifornia Resources Production Corporation
Ratto 1-35 04-077-20726Shut in GasCalifornia Resources Production Corporation
Roberts Island 1 04-077-20524Active ServicePacific Gas and Electric Company
SJC 1-34 04-077-20691Shut in GasCalifornia Resources Production Corporation
Seifert D-1 04-077-20613Active StorageLodi Gas Storage, L.L.C.
Seifert D-2 04-077-20614Active StorageLodi Gas Storage, L.L.C.
Seifert D-3 04-077-20615Active StorageLodi Gas Storage, L.L.C.
Seifert M-3 04-077-20618Active StorageLodi Gas Storage, L.L.C.
Seifert O-2 04-077-20635Active ServiceLodi Gas Storage, L.L.C.
Seifert O-4 04-077-20638Active ServiceLodi Gas Storage, L.L.C.
Seifert D-3A 04-077-20655Active StorageLodi Gas Storage, L.L.C.
Seifert M-3A 04-077-20676Active StorageLodi Gas Storage, L.L.C.
Seifert D-3B 04-077-20734Active StorageLodi Gas Storage, L.L.C.
Signet-Brown 33-23 04-077-00123Shut in GasCalifornia Resources Production Corporation
Signet-Perrin 33-25 04-077-00128Shut in GasCalifornia Resources Production Corporation
Sonol Securities 1-A 04-077-20159Shut in GasCalifornia Resources Production Corporation
Sonol Securities 2 04-077-20162Shut in GasCalifornia Resources Production Corporation
Sonol Securities 3 04-077-20171Shut in GasCalifornia Resources Production Corporation
Sonol Securities 4 04-077-20175Shut in GasCalifornia Resources Production Corporation
Sonol Securities 5 04-077-20191Shut in GasCalifornia Resources Production Corporation
Sonol Securities 7 04-077-20224Shut in GasCalifornia Resources Production Corporation
Sonol Securities 8 04-077-20360Shut in GasCalifornia Resources Production Corporation
Sonol Securities 10 04-077-20713Shut in GasCalifornia Resources Production Corporation
Sonol Securities 11 04-077-20724Shut in GasCalifornia Resources Production Corporation
T.L.W. 26-9 04-077-20129Shut in GasCalifornia Resources Production Corporation
Transamerica 1-3 04-077-20597Shut in GasCalifornia Resources Production Corporation
Transamerica 2-3 04-077-20707Shut in GasCalifornia Resources Production Corporation
Turner Cut 2-N 04-077-20199Active StoragePacific Gas and Electric Company
Turner Cut 3-N 04-077-20201Active StoragePacific Gas and Electric Company
Turner Cut 4-N 04-077-20202Active StoragePacific Gas and Electric Company
Turner Cut 4-S 04-077-20203Active StoragePacific Gas and Electric Company
Turner Cut 5-S 04-077-20204Active StoragePacific Gas and Electric Company
Turner Cut 7-S 04-077-20206Active StoragePacific Gas and Electric Company
Turner Cut 5-N 04-077-20207Active StoragePacific Gas and Electric Company
Turner Cut 6-N 04-077-20208Active StoragePacific Gas and Electric Company
Turner Cut 3-S 04-077-20216Active StoragePacific Gas and Electric Company
Turner Cut 1-S 04-077-20218Active StoragePacific Gas and Electric Company
Turner Cut 2-S 04-077-20219Shut in StoragePacific Gas and Electric Company
Turner Cut 7-N 04-077-20225Shut in StoragePacific Gas and Electric Company
Turner Cut 8-N 04-077-20226Active StoragePacific Gas and Electric Company
Turner Cut 10-N 04-077-20228Active StoragePacific Gas and Electric Company
Turner Cut 11-N 04-077-20229Active StoragePacific Gas and Electric Company
Turner Cut 12-N 04-077-20230Active StoragePacific Gas and Electric Company
Turner Cut 13-N 04-077-20234Active StoragePacific Gas and Electric Company
Turner Cut 15-N 04-077-20239Active StoragePacific Gas and Electric Company
Turner Cut 16-N 04-077-20240Active StoragePacific Gas and Electric Company
Turner Cut 16-S 04-077-20243Active StoragePacific Gas and Electric Company
Turner Cut 14-S 04-077-20244Active StoragePacific Gas and Electric Company
Turner Cut 15-S 04-077-20245Active StoragePacific Gas and Electric Company
Turner Cut 13-S 04-077-20247Active StoragePacific Gas and Electric Company
Turner Cut 12-S 04-077-20248Active StoragePacific Gas and Electric Company
Turner Cut 11-S 04-077-20250Active StoragePacific Gas and Electric Company
Turner Cut 10-S 04-077-20251Active StoragePacific Gas and Electric Company
Turner Cut 9-S 04-077-20252Active StoragePacific Gas and Electric Company
Turner Cut 17-S 04-077-20258Active StoragePacific Gas and Electric Company
Turner Cut 8-S 04-077-20533Active StoragePacific Gas and Electric Company
Turner Cut 17N 04-077-20548Active StoragePacific Gas and Electric Company
Turner Cut 1A-S 04-077-20551Active StoragePacific Gas and Electric Company
Turner Cut 01B-N 04-077-20741Active StoragePacific Gas and Electric Company
Turner Cut TC-01AN 04-077-20742Active StoragePacific Gas and Electric Company
Turner Cut 1BS 04-077-20744Permitted StoragePacific Gas and Electric Company
Union Properties 1 04-077-20197Shut in GasCalifornia Resources Production Corporation
Vernalis 12-15 04-077-00259Shut in GasCalifornia Resources Production Corporation
Vernalis Farms 1 04-077-20408Shut in GasSacramento Energy, Inc.
Vernalis Unit 1 13-23 04-077-00257Shut in GasCalifornia Resources Production Corporation
Vernalis Unit 1 52-22 04-077-00269Active GasCalifornia Resources Production Corporation
Vernalis Unit 1 65-22 04-077-00271Active GasCalifornia Resources Production Corporation
Vernalis Unit 1 68-15 04-077-00272Shut in GasCalifornia Resources Production Corporation
Vernalis Unit 2 11-22 04-077-00258Shut in GasCalifornia Resources Production Corporation
Vernalis Unit 2 14-15 04-077-00260Shut in GasCalifornia Resources Production Corporation
Vernalis Unit 2 26-22 04-077-00263Shut in GasCalifornia Resources Production Corporation
Vernalis Unit 2 27-15 04-077-00264Active GasCalifornia Resources Production Corporation
Vernalis Unit 2 33A-22 04-077-00265Shut in GasCalifornia Resources Production Corporation
Vernalis Unit 2 34-15 04-077-00266Active GasCalifornia Resources Production Corporation
Vernalis Unit 2 18-15 04-077-20011Shut in GasCalifornia Resources Production Corporation
Vernalis Unit 3 42-15 04-077-00267Shut in GasCalifornia Resources Production Corporation
Vernalis Unit 3 64-15 04-077-00270Shut in GasCalifornia Resources Production Corporation
Vieira 1 04-077-20307Shut in GasJ. D. Hunt
Weyl-Zuckerman 1 04-077-00091Active ServicePacific Gas and Electric Company
Whiskey Slough 1-E 04-077-20168Active StoragePacific Gas and Electric Company
Whiskey Slough 2-E 04-077-20169Active StoragePacific Gas and Electric Company
Whiskey Slough 3-E 04-077-20173Active StoragePacific Gas and Electric Company
Whiskey Slough 4-E 04-077-20178Active StoragePacific Gas and Electric Company
Whiskey Slough 5-E 04-077-20179Active StoragePacific Gas and Electric Company
Whiskey Slough 6-E 04-077-20185Active StoragePacific Gas and Electric Company
Whiskey Slough 7-E 04-077-20187Active StoragePacific Gas and Electric Company
Whiskey Slough 8-E 04-077-20188Active StoragePacific Gas and Electric Company
Whiskey Slough 6-W 04-077-20192Active StoragePacific Gas and Electric Company
Whiskey Slough 7-W 04-077-20193Active StoragePacific Gas and Electric Company
Whiskey Slough 8-W 04-077-20194Active StoragePacific Gas and Electric Company
Whiskey Slough 9-W 04-077-20195Active StoragePacific Gas and Electric Company
Whiskey Slough 5-W 04-077-20211Shut in StoragePacific Gas and Electric Company
Whiskey Slough 2-W 04-077-20212Active StoragePacific Gas and Electric Company

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