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Alameda County, CA oil and gas wells

100 wells: 0 active, 92 plugged, run by 47 operators.

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

Top operators in Alameda

OperatorActiveWells here
E & B Natural Resources Management Corporation012
Chevron U.S.A. Inc.010
Hershey Oil Corporation09
E. C. Brown, Operator07
Castle Minerals04
TXO Production Corp.04
Ben F. Mingoia03
Trico Industries Inc03
UMC Petroleum Corp.03
Atlantic & Western Oil Co.02
Crestmont Oil & Gas Company02
Excel-Mineral Co.02
Humiston Investment Co.02
Irex Corp.02
Phillips Petroleum Company02
Venoco, LLC02
A. M. Gilstrap01
American Exploration Co.01
Bettie A. McBurney, Oper.01
Biglo Co.01
Brady Sure Shot Oil Co.01
Brazos Oil and Gas Company01
C. F. Braun & Co.01
Calhoma Oil Corp.01
Capitol Oil Corporation01

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
Altamont 1 04-001-20053Plugged Dry holeIrex Corp.
Antonini 1 04-001-20027Plugged Dry holeBiglo Co.
B & G 1 04-001-00036Plugged Dry holeN. D. Bradford & J. F. Guardino
Buttes Freitas 1 04-001-00005Plugged Dry holeVenoco, LLC
Castello 1-13 04-001-00018Plugged Dry holeMobil Oil Exploration & Production North America, Inc.
Castle-Wisner Unit 1-1 04-001-20043Plugged GasCastle Minerals
City of Livermore 1 04-001-20019Plugged Dry holeVenoco, LLC
Clay Canyon Minerals 1 04-001-20029Plugged Dry holeTrico Industries Inc
Corwin-Bettencourt 1 04-001-20007Plugged Dry holeHumiston Investment Co.
Corwin-Bettencourt 2 04-001-20026Plugged Dry holeHumiston Investment Co.
Crohare 1 04-001-20049Plugged Dry holeC. F. Braun & Co.
Dyer 1 04-001-00012Plugged Dry holeMichigan Oil Company
Foley 1 04-001-00021Plugged Dry holeChevron U.S.A. Inc.
Frick-Castle 8-1 04-001-20055Plugged Dry holeTXO Production Corp.
Garaventa 68-22 04-001-20023Plugged Dry holeChowchilla Gas Company
Gomes 1 04-001-00019Plugged Dry holeBrazos Oil and Gas Company
Gondolfo Unit 1 04-001-20060Plugged Dry holeCastle Minerals
Greenville 1 04-001-20054Plugged Dry holeIrex Corp.
Greenville Investment Group 1 04-001-00001Plugged Oil & gasE & B Natural Resources Management Corporation
Greenville Investment Group 2 04-001-20004Plugged Oil & gasE & B Natural Resources Management Corporation
Guidotti 1 04-001-20032Plugged Dry holeUMC Petroleum Corp.
Guidotti 1 04-001-20047Plugged Dry holeHershey Oil Corporation
Hancock-Signal (NCT-1) Wente 1 04-001-00002Plugged GasChevron U.S.A. Inc.
Hancock-Signal (NCT-1) Wente 2 04-001-00003Plugged Dry holeChevron U.S.A. Inc.
Hancock-Signal A.R. Hansen 41-19 04-001-00033Plugged Dry holePhillips Petroleum Company
Hancock-Signal R.A. Hansen 1 04-001-00029Plugged Dry holePhillips Petroleum Company
Hershey Nissen 1-7 04-001-20057Plugged Dry holeTXO Production Corp.
Johnston 1 04-001-00030Plugged Dry holeChevron U.S.A. Inc.
Lavagetto 1 04-001-00009Plugged Dry holeFrederick Libby
Lease by A. M. Gilstrap 1 04-001-00025Plugged Dry holeA. M. Gilstrap
Lease by Atlantic & Western Oil Co. 1 04-001-00004Plugged Dry holeAtlantic & Western Oil Co.
Lease by Atlantic & Western Oil Co. 1 04-001-00028Plugged Dry holeAtlantic & Western Oil Co.
Lease by Ducor Petroleum Company 1 04-001-00022Plugged Dry holeDucor Petroleum Company
Lease by Hayward Oil Co., Ltd. 1 04-001-00010Plugged Dry holeHayward Oil Co., Ltd.
Lease by J. E. Burney Syndicate No. 1 1 04-001-00020Plugged Dry holeJ. E. Burney Syndicate No. 1
Lease by Jas E. Conniff 1 04-001-00034Plugged Dry holeJas E. Conniff
Lease by R. Y. Hanlon 1 04-001-00011Plugged Dry holeR. Y. Hanlon
Lease by Talbott Oil Co. 1 04-001-00031Plugged Dry holeTalbott Oil Co.
Lease by Thomas & Hammill 1 04-001-00032Plugged Dry holeThomas & Hammill
Lease by W. A. Hammill 2 04-001-00035Plugged Dry holeW. A. Hammill
Lease by W. M. S. Oil Co. 1 04-001-00026Plugged Dry holeW. M. S. Oil Co.
Livermore Valley Oil Co. 1A 04-001-00023Plugged Dry holeCalhoma Oil Corp.
Lupin 1 04-001-20001Plugged Oil & gasE. C. Brown, Operator
Lupin 2 04-001-20010Plugged Oil & gasE. C. Brown, Operator
Lupin 3 04-001-20015Plugged Oil & gasE. C. Brown, Operator
Lupin 4 04-001-20018Plugged Oil & gasTXO Production Corp.
Lupin 5 04-001-20024Plugged Oil & gasE. C. Brown, Operator
Lupin 6 04-001-20050Plugged Dry holeExcel-Mineral Co.
Lupin 7 04-001-20052Plugged Dry holeExcel-Mineral Co.
Maud Stanley 1 04-001-00013Plugged Dry holeChevron U.S.A. Inc.
Miller-Richards 1-1 04-001-20051Plugged Dry holeHershey Oil Corporation
Moore 1 04-001-20020Plugged Dry holeE. C. Brown, Operator
Mulqueeny 1 04-001-20011Plugged Dry holeTrico Industries Inc
Nissen 1 04-001-00017Plugged Dry holeShell Western E&P Inc.
Nissen 1 04-001-20006Plugged Oil & gasHershey Oil Corporation
Nissen 2 04-001-20008Plugged Oil & gasE & B Natural Resources Management Corporation
Nissen 3 04-001-20012Plugged Oil & gasE & B Natural Resources Management Corporation
Nissen 4 04-001-20013Plugged Dry holeHershey Oil Corporation
Nissen 5 04-001-20014Plugged DisposalE & B Natural Resources Management Corporation
Nissen 1 04-001-20025Plugged Dry holeE. C. Brown, Operator
Nissen 2 04-001-20028Plugged Dry holeE. C. Brown, Operator
Nissen 6 04-001-20031Plugged DisposalE & B Natural Resources Management Corporation
Nissen 7 04-001-20036Plugged Oil & gasE & B Natural Resources Management Corporation
Nissen 8 04-001-20040Plugged Dry holeHershey Oil Corporation
Nissen 9 04-001-20041Plugged Oil & gasE & B Natural Resources Management Corporation
P.P.I. Koopman 1 04-001-20037Plugged Dry holeUMC Petroleum Corp.
Pestana 1 04-001-20034Plugged Dry holePestana Oil Co.
Rhodes 1 04-001-20046Plugged Dry holeHershey Oil Corporation
S.O.-Wagoner Ranch 1 04-001-20033Plugged Dry holeTrico Industries Inc
SPRR 1 04-001-20016Plugged Dry holeCapitol Oil Corporation
Schenone 2 04-001-20009Plugged Oil & gasE & B Natural Resources Management Corporation
Schenone 1 04-001-20044Plugged Oil & gasE & B Natural Resources Management Corporation
Schenone 3 04-001-20048Plugged Oil & gasHershey Oil Corporation
Schenone et al 1 04-001-20030Plugged Dry holeUMC Petroleum Corp.
Signal-Hancock Christensen 1 04-001-00016Plugged Dry holeChevron U.S.A. Inc.
Signal-Hancock Garaventa (NCT- 1 04-001-00015Plugged Dry holeChevron U.S.A. Inc.
Signal-Hancock Gordon 1 04-001-00014Plugged Dry holeChevron U.S.A. Inc.
Smith 6-1 04-001-20056Plugged Oil & gasTXO Production Corp.
Smith et ux 1 04-001-20005Plugged Oil & gasAmerican Exploration Co.
Smith et ux 2 04-001-20021Plugged Dry holeHershey Oil Corporation
Tesla 1 04-001-20003Plugged Dry holeBettie A. McBurney, Oper.
Tesla 5 04-001-20017Plugged Dry holeCrestmont Oil & Gas Company
Tesla 12 04-001-20022Plugged Dry holeCrestmont Oil & Gas Company
Uliana 1 04-001-20035Plugged Dry holeBen F. Mingoia
Vieira 1 04-001-20061Plugged Dry holeLas Palmas Petro. Co.
W.G. Wagoner 1 04-001-00024Plugged Dry holeChevron U.S.A. Inc.
Wagoner 1 04-001-00027Plugged Dry holeChevron U.S.A. Inc.
Webb 1 04-001-20038Plugged Dry holeBen F. Mingoia
Webb 2 04-001-20039Plugged Dry holeBen F. Mingoia
Wiedemann and Kaplan 1 04-001-00006Plugged Dry holeWesley West
Wisner Unit One 2 04-001-20058Plugged Dry holeCastle Minerals
Wisner Unit One 3 04-001-20059Plugged Dry holeCastle Minerals