San Mateo County, CA oil and gas wells

Name: San Mateo County, CA oil and gas wells
Creator: California Geologic Energy Management Division (CalGEM)

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

Operator	Active	Wells here
John Tedesco	2	3
Neaves Petro. Developments	0	40
Costa Loma Ltd.	0	22
Union Oil Company of California	0	18
Chevron U.S.A. Inc.	0	11
The Eric and Susan Dunn Living Trust dated July 27, 2006	0	11
Botto And Miller, Trustees	0	7
Peninsula Open Space Trust	0	7
John M. Young	0	5
Zia-Verde	0	5
Arco Western Energy Co.	0	4
Brayton-La Honda, Ltd.	0	4
Cann & Wallis	0	4
E. T. Willard	0	4
J. Berger	0	4
KPR Corp.	0	4
Exxon Mobil Corporation	0	3
Fountain Oil Co.	0	3
M. J. & O.	0	3
Mobil Oil Exploration & Production North America, Inc.	0	3
The 2020 Macmillan and Peterson Family Revocable Trust	0	3
W. A. Sage	0	3
Wilshire Oil Company, Inc.	0	3
C. C. Julian and Co.	0	2
Deuel Petroleum Company, Inc.	0	2

Well	API / ID	Status	Type	Operator
No wells match.