2020-09-30_PERMIT FILE - C1981022 ‎(2)‎

• Permit No: C1981022
• IBM Index Class Name: Permit File
• Doc Date: 9/30/2020
• Doc Name: Borehole Abandonment Reports
• Section_Exhibit Name: Exhibit 2.04-E3 Tab I/Item 9
• Media Type: D
• Archive: No

Oxbow Mining LLC
E: Elk Creek Mine
Hole Number: GVB 11-02 Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC-61357 (State or Federal) Surface Owner: BLM
Date Commenced: 15-Jul-07 Date Completed: 24-Jul-07
Contractor: Stewart Bros. Rig Type: Failing 2500 Rig 48
Geologist: Doug Allen Date: 15-Jan-08 Toolpusher: Danny White
Driller: Gabe Armijo Truck Driver: Austin Martinez Helper: G. Gutierrez
Kevine Begay N.Brite J.Trujillo
Randy McClard L.Smith A. Sandoval
Coordinates: N. 19448.14 E. 29236.65
Location: Township,Range&Section: N.1/2 Sec.36,T.12S.,R.91 W.
Ground Elevation: 7444' Collar Elevation:
Geophysical Log Measured From: Ground Elevation
Total Depth: 1548' Probe Depth: 1548' Fluid Level: NA
Casing Type: steel,T&C Size: 9 5/8"
Casing Type: steel FJ Size: 7"(5 slotted,3 solid)
Depth: 9 5/8":0-1383' Recovered(Y or N): N
7": 1317-1482' N
Bit Information
Surface Casing 17"Tricone to 20;(14"surface casing)
Main Hole (Reamed)12 1/4"Tricone to 1408'
Core: NA
Bottom Hole 8 3/4"Tricone to 1548'
Footage Plugged: 1548' Cored: NA
Drilling Medium: Air: FoamlWater: Mud: Foam Injection:
Depths: 0-617' 617-1548'
Lost Circulation Depths: NA Regained? (Y or N):
Water Invasion Depth or Intervals: NA Estimated Inflow Rates:
Gas Invasion Depth or Interval: 1500-1515'
Geophysical Logging Contractor: Jet West Geophysical,LLC
Logs Run: Gamma: X Neutron:
Temperature: Density: X
Resistivity: X Caliper: X
Other(SP,Foc.Elec.,Drift,Dep.,Sonic): D v,'a j ,K; 3`? C-� /$6
Hole Cemented(Y or N ),Type: Y No.of Bags: 5.5yds pordand for 95/8 annulus
Interval: to surface
Coal Core Sent To: NA Rock Sent To: NA
Comments: Drilled 8 3/4"pilot hole to verify mineable thickness,then reamed
121/4"to 1408'for 9 5/8"casing. Cuttings filled bottom hole during reaming,cleaned out to 1487'.
9'cement plug from 1478-1487'. Bottom of 7"slotted casing 22'above D2 seam(1500-1511').
9 5/8" casing abandoned to surface with 22 cubic yards portland type 11 cement July 2009.