Richfield-Costa 4

Name: Richfield-Costa 4 — California wellbore record
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

API 0408100078 · San Mateo County, California · Oil Creek field

PluggedDry Hole

API

0408100078

Operator

Union Oil Company of California

County

San Mateo

Field

Oil Creek

Spudded

1956-04-20

Location

37.235123, -122.155037

37.23512, -122.15504 · Surface location as filed with California⌘ or Ctrl + scroll to zoom

Every well in San Mateo County, California

California state record, from CA_wells_Well.parquet. Corpus built 2026-08-19.