WellheadMap

Home › California › San Mateo

San Mateo County, CA oil and gas wells

245 wells: 2 active, 188 plugged, run by 85 operators.

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

Top operators in San Mateo

OperatorActiveWells here
John Tedesco23
Neaves Petro. Developments040
Costa Loma Ltd.022
Union Oil Company of California018
Chevron U.S.A. Inc.011
The Eric and Susan Dunn Living Trust dated July 27, 2006011
Botto And Miller, Trustees07
Peninsula Open Space Trust07
John M. Young05
Zia-Verde05
Arco Western Energy Co.04
Brayton-La Honda, Ltd.04
Cann & Wallis04
E. T. Willard04
J. Berger04
KPR Corp.04
Exxon Mobil Corporation03
Fountain Oil Co.03
M. J. & O.03
Mobil Oil Exploration & Production North America, Inc.03
The 2020 Macmillan and Peterson Family Revocable Trust03
W. A. Sage03
Wilshire Oil Company, Inc.03
C. C. Julian and Co.02
Deuel Petroleum Company, Inc.02

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusTypeOperator
Allen Buiberson-Pereira 1 04-081-00094Plugged Dry holeG E Kadane & Sons
Alsford 1 04-081-00026Plugged Dry holeC & V Expl. Co.
Americo Cabral 1 04-081-00160Plugged Dry holeAmerico Oil Expl. & Drill. Co.
Bacciocco 1 04-081-20002Plugged Dry holeP. L. J. Co.
Beffa 1 04-081-00084Plugged Dry holeMonterey Resources, Inc.
Bell 5 04-081-00074Plugged Dry holeRa-Lite Petro., Inc.
Bernado 1 04-081-00170Plugged Dry holeDoc Oil Co. of Nevada
Bianchi 1 04-081-00087Plugged Dry holeConoco Inc.
Blomquist 1 04-081-00154Plugged Dry holeChevron U.S.A. Inc.
Burns 3 04-081-00046Plugged Dry holeBrayton-La Honda, Ltd.
Burns 11 04-081-00047Plugged DisposalThe Eric and Susan Dunn Living Trust dated July 27, 2006
Burns 15 04-081-00050Plugged Dry holeBrayton-La Honda, Ltd.
Burns 1 04-081-00055Plugged Oil & gasThe Eric and Susan Dunn Living Trust dated July 27, 2006
Burns 2 04-081-00056Plugged Oil & gasBrayton-La Honda, Ltd.
Burns 4 04-081-00057Plugged Oil & gasBrayton-La Honda, Ltd.
Burns 5 04-081-00058Plugged Oil & gasThe Eric and Susan Dunn Living Trust dated July 27, 2006
Burns 6 04-081-00059Plugged Oil & gasThe Eric and Susan Dunn Living Trust dated July 27, 2006
Burns 7 04-081-00060Plugged Oil & gasThe Eric and Susan Dunn Living Trust dated July 27, 2006
Burns 8 04-081-00061Plugged Oil & gasThe Eric and Susan Dunn Living Trust dated July 27, 2006
Burns 9 04-081-00062Plugged Oil & gasThe Eric and Susan Dunn Living Trust dated July 27, 2006
Burns 10 04-081-00063Plugged Oil & gasThe Eric and Susan Dunn Living Trust dated July 27, 2006
Burns 14 04-081-00064Plugged Oil & gasThe Eric and Susan Dunn Living Trust dated July 27, 2006
Burns 16 04-081-00065Plugged Oil & gasThe Eric and Susan Dunn Living Trust dated July 27, 2006
Burns-Texaco 1 04-081-00066Plugged Oil & gasPeninsula Humane Society & SPCA
Butts 1 04-081-00017Plugged Dry holeShell Oil Company
Butts 2 04-081-20066Plugged Oil & gasThompson & McNickels
Carter Lane 1-A 04-081-00054Plugged OtherLa Honda Fields Limited Partnership
Carter Lane 1 04-081-00067Plugged Oil & gasBotto And Miller, Trustees
Carter Lane 2 04-081-00068Plugged Oil & gasBotto And Miller, Trustees
Carter Lane 3 04-081-00069Plugged Oil & gasBotto And Miller, Trustees
Carter Lane 4 04-081-00070Plugged Oil & gasBotto And Miller, Trustees
Carter Lane 6 04-081-00071Plugged Oil & gasBotto And Miller, Trustees
Carter Lane 7 04-081-00072Plugged Oil & gasBotto And Miller, Trustees
Cassinelli 1 04-081-00168Plugged Dry holeWilliam Y. Lee
Chi Chi 2 04-081-00158Plugged Dry holeOperators No. 1
Chi Chi 1 04-081-00161Plugged Dry holeOperators No. 1
Consolidated Farms 1 04-081-00131Plugged Dry holeChevron U.S.A. Inc.
Core Hole 2 04-081-00023Plugged ServiceJohn M. Young
Core Hole 1 04-081-00024Plugged ServiceJohn M. Young
Core Hole 8 04-081-00133Plugged ServiceMobil Oil Exploration & Production North America, Inc.
Core Hole 9 04-081-00134Plugged ServiceMobil Oil Exploration & Production North America, Inc.
Core Hole 10 04-081-00135Plugged ServiceMobil Oil Exploration & Production North America, Inc.
Costa 3-A 04-081-00079Plugged Oil & gasCosta Loma Ltd.
Costa 5-A 04-081-00080Plugged Oil & gasCosta Loma Ltd.
Costa 1 04-081-00081Plugged Oil & gasCosta Loma Ltd.
Costa 2 04-081-00082Plugged Oil & gasCosta Loma Ltd.
Costa 5 04-081-20007Plugged DisposalCosta Loma Ltd.
Costa 4-A 04-081-20015Plugged Oil & gasCosta Loma Ltd.
Costa 6-A 04-081-20017Plugged Oil & gasCosta Loma Ltd.
Costa 7-A 04-081-20020Plugged Oil & gasCosta Loma Ltd.
Costa 8 04-081-20065Plugged Oil & gasCosta Loma Ltd.
Cowell 1 04-081-00008Plugged Oil & gasWilshire Oil Company, Inc.
Cowell 2 04-081-00009Plugged Oil & gasWilshire Oil Company, Inc.
Cowell 1 04-081-00090Plugged Dry holeMidstate Consolidated Oil Co.
Cowell 2 04-081-00091Plugged Dry holeMidstate Consolidated Oil Co.
Cowell 3 04-081-00107Plugged Dry holeWilshire Oil Company, Inc.
Cowell Estate 1 04-081-20022Plugged Oil & gasPeninsula Open Space Trust
Cowell Estate 2 04-081-20042Plugged Oil & gasPeninsula Open Space Trust
Cowell Estate 3 04-081-20043Plugged Oil & gasPeninsula Open Space Trust
Cowell Estate 13 04-081-20054Plugged Oil & gasPeninsula Open Space Trust
Cowell Estate 10 04-081-20060Plugged Oil & gasPeninsula Open Space Trust
DeBenedetti 1 04-081-00162Plugged Oil & gasPeninsula Open Space Trust
DeBenedetti 73-21 04-081-00166Plugged Dry holeJohn M. Young
Dehoff 1 04-081-00095Plugged Dry holeE. R. Bardwell
E.L. Moore 2 04-081-00144Plugged Dry holeUnion Oil Company of California
Elkus 1 04-081-00025Plugged Dry holeJohn M. Young
Elkus 2-A 04-081-00163Plugged Dry holeCann & Wallis
Elkus 1 04-081-00164Plugged Dry holeCann & Wallis
Elkus 3 04-081-00165Plugged Dry holeCann & Wallis
Elkus 2 04-081-00171Plugged Dry holeCann & Wallis
Elkus 1 04-081-00174Plugged Oil & gasDeuel Petroleum Company, Inc.
Elkus 2 04-081-00176Plugged Oil & gasDeuel Petroleum Company, Inc.
Elkus 1-15 04-081-20003Plugged Dry holeUnion Petrochemical
F.B. Hitchcock, Jr. 1 04-081-20005Plugged Dry holePhoenix West Oil and Gas Corporation
F.P. Guerra 1 04-081-00116Plugged Dry holeUnion Oil Company of California
Farrington 1 04-081-00001Plugged Oil & gasThe 2020 Macmillan and Peterson Family Revocable Trust
Farrington 2 04-081-00002Plugged Oil & gasThe 2020 Macmillan and Peterson Family Revocable Trust
Farrington 3 04-081-00159Plugged Dry holeThe 2020 Macmillan and Peterson Family Revocable Trust
Fatjo Tucker 1 04-081-00112Plugged Dry holeArco Western Energy Co.
Ford 1 04-081-00115Plugged Dry holeChevron U.S.A. Inc.
Grant 4 04-081-00030Plugged Dry holeLa Honda Oil & Gas Co.
Humble-Neaves Turnbow 1 04-081-00124Plugged Dry holeNeaves Petro. Developments
Iener 1 04-081-00013Plugged Dry holeM. J. & O.
Isenberg 1 04-081-00117Plugged Dry holeArco Western Energy Co.
Lane Union Oil 4 04-081-00073Plugged OtherBotto And Miller, Trustees
Latta 1 04-081-20004Plugged Dry holeEbert & Brandt
Lease by A & C Oil Co. 1 04-081-00106Plugged Dry holeA & C Oil Co.
Lease by Bell Energy Corporation 1 (Old) 04-081-00184Plugged Oil & gasBell Energy Corporation
Lease by Big Basin Paraffin Oil Co. 1 04-081-00157Plugged Dry holeBig Basin Paraffin Oil Co.
Lease by C. C. Julian and Co. 1 04-081-00010Plugged Oil & gasC. C. Julian and Co.
Lease by C. C. Julian and Co. 4 04-081-00011Plugged Dry holeC. C. Julian and Co.
Lease by E. T. Willard 2 04-081-00020Plugged Dry holeE. T. Willard
Lease by E. T. Willard 3 04-081-00021Plugged Dry holeE. T. Willard
Lease by E. T. Willard 1 04-081-00104Plugged Dry holeE. T. Willard
Lease by E. T. Willard, Trustee 1 04-081-00019Plugged Dry holeE. T. Willard, Trustee
Lease by Easton-Monell 1 04-081-00083Plugged Dry holeEaston-Monell
Lease by Eddy & Riedman 1 04-081-00027Plugged Dry holeEddy & Riedman
Lease by Elk Hills Pool Oil Co. 1 04-081-00004Plugged Dry holeElk Hills Pool Oil Co.
Lease by Fountain Oil Co. 1 04-081-00005Plugged Dry holeFountain Oil Co.
Lease by Fountain Oil Co. 2 04-081-00006Plugged Dry holeFountain Oil Co.

Next →