Essex-Cobb 3

Name: Essex-Cobb 3 — Montana wellbore record
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

API 25035072140000 · Montana · Graben Coulee field

Shut InOil

API

25035072140000

Operator

Yellowstone Petroleums, Inc.

Field

Graben Coulee

Completed

1966-04-05

Measured depth

2,753 ft

Location

48.965540, -112.235940

48.96554, -112.23594 · 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.