Essex Cobb 4

Name: Essex Cobb 4 — Montana wellbore record
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

API 25035072150000 · Montana · Graben Coulee field

Active InjectionInjection - Disposal

API

25035072150000

Operator

Yellowstone Petroleums, Inc.

Field

Graben Coulee

Completed

1966-07-23

Measured depth

2,947 ft

Location

48.965540, -112.233190

48.96554, -112.23319 · 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.