Tri-Valley-Massoni 1

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

API 0401320211 · Contra Costa County, California · Any Field field

PluggedDry Hole

API

0401320211

Operator

Atlantic Oil Company

County

Contra Costa

Field

Any Field

Spudded

1983-08-30

Location

37.978092, -121.647415

37.97809, -121.64741 · 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.