H. Mason 1-A20

Name: H. Mason 1-A20 — Montana wellbore record
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

API 25085051190000 · Montana

P&A - ApprovedDry Hole

API

25085051190000

Operator

Union Oil Company Of California

Completed

1974-04-14

Measured depth

9,070 ft

Location

48.257580, -105.237840

48.25758, -105.23784 · Surface location as filed with Montana⌘ or Ctrl + scroll to zoom

Montana state record, from MT_wells_BOG_Wells.parquet. Corpus built 2026-08-19.