Fresno County, CA oil and gas wells

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

12,486 wells: 2,053 active, 8,925 plugged, run by 538 operators.

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

Top operators in Fresno

Operator	Active	Wells here
Aera Energy LLC	921	3,271
Chevron U.S.A. Inc.	781	5,441
Sentinel Peak Resources California LLC	147	1,074
Holmes Western Oil Corporation	90	184
California Resources Production Corporation	51	462
James S. Anderson	19	46
Silverbacq LLC	9	12
C. Case Company	8	16
KMP Operating Inc.	8	15
Petro-Lud, Inc.	5	119
H.T. Olsen Oil & Gas Operations	5	24
The Termo Company	3	8
Case's Used Equipment	3	7
Chambers & Mouren	2	15
Reef Ridge Energy Company LLC	1	1
Mobil Oil Corporation	0	78
Longview Production Co.	0	73
Samson Resources Co.	0	69
Amerada Hess Corp.	0	56
Freeport-McMoRan Oil & Gas LLC	0	55
Oryx Energy Company	0	44
First Oil and Gas Company	0	41
Phillips Petroleum Company	0	34
Shell Western E&P Inc.	0	30
Exxon Corporation	0	27

Well	API / ID	Status	Type	Operator
No wells match.