Document 6wz95GZ4q9pw3M0w5nweyVXOg

Inspection Report Mechanical Integrity Test Osage DNR / Environmental Protection Agency 1201 Elm Street, Suite 500 Dallas TX 75270 Inspector Matthew Allen MIT Date 07/08/2025 Operator Representative Tallgrass Resources, LLC Report Sent Operator Time 09:00 Inject Interval 2900 - 2970 USDW 595 Well Type Dual Completion Annulus Fluid Type Casing 7 Concentric Pkr Tubing 2.875 Packer Depth 2668 Operator Info Tallgrass Resources, LLC 1569 E 21st Street, Suite 215 Tulsa, OK 74114 Phone: 918-270-9927 Inventory ID API Well No Lease Name Well ID OS1436000 JAC 3 Location NE 29 28N 08E Type of MIT Ada Pressure Test Test Reason Routine Injecting Y Injection Rate (bpd) Tubular Lining Ann Filled (hrs) MIT Due 07/30/2023 MIT Freq EVERY FIVE YEARS Ann Press Mont Time Pre-Test Tubing Pressure 0 Annulus Pressure 0 Flowback Pressure High Volume Initial 09:00 200 200 Mid Mid 09:15 200 200 Low Final 09:30 200 200 End Total Volume ADA Pressure Test - Required Test Pressure (Fluid Column Ht * Specific Gravity * .433 / N2 Wt Fac = Required Test Pressure) Tubing Annulus Depth to Top Perf/Open Hole Depth to Fluid Level Fluid Column Level 2900 197 2703 Specific Gravity of Fluid 1.06 Nitrogen Weight Factor 1.1064 Required Pressure Test 1121.31 Remedial Action Type Fluid Migration Test Type Inspection Comments Inspector Signature Remedial Action Type Well, OS1436000 had a calculated test pressure of 1121 psi, the well failed to achieve the required test pressure. The tubing was pressured to 200psi and the tubing/annulus equalized to 200psi, which indicated communication between the tubing and annulus. The operator stated they would move a workover rig to the well and attempt to repair the well. MATTHEW ALLEN Date: 2025.08.12 08:19:06 -05'00' Digitally signed by MATTHEW ALLEN Supervisor Signature JEANNE ECKHART Date: 2025.08.12 10:40:16 -05'00' Digitally signed by JEANNE ECKHART