Massoni-Demartini 1

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

API 0401320027 · Contra Costa County, California · River Break Gas field

PluggedGas

API

0401320027

Operator

Western Continental Operating Company

County

Contra Costa

Field

River Break Gas

Spudded

1968-05-14

Location

37.987572, -121.721405

37.98757, -121.72141 · Surface location as filed with California⌘ or Ctrl + scroll to zoom

Every well in Contra Costa County, California

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