Tract 4 4-1

Name: Tract 4 4-1 — California wellbore record
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

API 0401300111 · Contra Costa County, California · Dutch Slough Gas field

PluggedDry Gas

API

0401300111

Operator

Tonka Energy, Inc.

County

Contra Costa

Field

Dutch Slough Gas

Spudded

1964-09-08

Location

38.003941, -121.670883

38.00394, -121.67088 · Surface location as filed with California⌘ or Ctrl + scroll to zoom

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