Llano Seco 1

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

API 0400700028 · Butte County, California · Llano Seco Gas (ABD) field

PluggedDry Hole

API

0400700028

Operator

Mobil Oil Corporation

County

Butte

Field

Llano Seco Gas (ABD)

Spudded

1946-09-03

Location

39.544895, -121.977829

39.54489, -121.97783 · Surface location as filed with California⌘ or Ctrl + scroll to zoom

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