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Marathon Oil Company: wells in California

Also operates in OK (374), LA (551), AR (35), TX (545), NM (170), PA (5), GOM (115), ND (1,328), CO (58), WY (1,457), AK (32), UT (45), KS (424), MT (16), MS (40), MI (544), IL (13), IN (56), NV (13), AZ (1).

Where they operate

CountyActiveWells
Kern055
Santa Barbara029
San Luis Obispo017
Los Angeles017
San Joaquin06
Kings06
Ventura05
Monterey05
Glenn05
Fresno05
Contra Costa04
Yolo03
Stanislaus02
Tulare01
Solano01
San Nicolas Island Offshore01
Orange01
Merced01

Wells

Not plugged · All wells · Plugged · Orphaned

WellAPI / IDStatusType
E.E. Willard 1 04-021-00229Shut in Gas

Operator names are shown as each state records them. Data as of 2026-10-19.