Document NGN9n64ZDw3QL32qq979BmYOy
Inspector
Well Inspection
Osage DNR / Environmental Protection Agency
1201 Elm Street, Suite 500
Dallas, Texas 75270
Matthew Allen
Inspection Date 02/04/2026
Time 08:30
Operator Representative Contango Resources, LLC
Operator Info
Contango Resources, LLC 1717 South Boulder, Suite 900 Tulsa, OK 74119 Phone: 918-392-3396
Inventory ID API Well No Lease Name
Well ID
OS2880000
NRU 20W3
Location SE 21 24N 07E
Status Active
Well Type Enhanced
Recovery
Latitude 36.542391
Longitude -96.558331
Inspection Requested By Compliance Reason Staff
Responsible Company at Contango Resources, LLC Time of Inspection
Inspect No. Casing 5.5
Date Last MIT 04/22/2019 Tubing
Last Test Result USDW
Acceptable 547
Monitoring N Device Elected
Tubings Annulus
AUTHORIZED
Monitoring Device
Fittings N
N
Max Pressure 694
FLM Canister
Actual Pressure 0
0
Max Volume
Pressure
Lease Status Active
Determined? Compan Open y Gage Value
Max Inj Units Barrels Per Month
Barrel Monitor N Hooked Up?
Static Fluid Level
Barrel Fluid Level (%)
Determined?
Flowline Hooked Y
Injection Rate 358
Up?
(bpd)
Injecting Y
Inspection Comments
Inspector observed well OS2880000. The well was connected and injecting at 355bbls/day. Well was overdue for MIT at the time of the inspection. Great Horned
Owls was the new owner/operator at the time of the inspection but the ownership
transfer was not completed with EPA.
Inspector Signature
MATTHEW ALLEN Date: 2026.02.26 17:27:01 -06'00' Digitally signed by MATTHEW ALLEN
Supervisor Signature
JEANNE ECKHART Date: 2026.02.27 07:50:33 -06'00' Digitally signed by JEANNE ECKHART
Contango Resources, LLC/Naval Reserve Unit (OS2880000) (UIC) Inspection Date: 2/4/2026
Appendix 1 Photograph Log
1 Photo
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
Photograph Log
Location: 36.542391, -96.558331 City: Fairfax
Photo No. 1 County/Parish: Osage
State: Oklahoma
Photo File Name: R0010778 Orientation: NE Date of Photo: 2/4/2025 Time of Photo: 9:33AM Latitude: 36.542391 Longitude: -96.558331 Photographer: Matthew Allen Description: This was well, OS288000, connected and injecting with a rate of 355 barrels per day. The company pressure gauge displayed 0psi on the tubing.