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
Elk Creek Mine
Hole Number: GVB 11-03 Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC-61357 (State or Federal) Surface Owner: Hotchkiss
Date Commenced: 21-Jun-07 Date Completed: 13-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. 18921.76 E. 30620.57
Location: Township,Range&Section: N.112 Sec. 36,T.12S., R.91 W.
Ground Elevation: 7500' Collar Elevation:
Geophysical Log Measured From: Ground Elevation
Total Depth: 1643' Probe Depth: 1617' Fluid Level: NA
Casing Type: steel,T&C Size: 9 5/8"
Casing Type: steel FJ Size: 7"(5 slotted,9 solid)
Depth: 9 5/8":0-1300' Recovered(Y or N): N
7"; 1265-1565' N
Bit Information
Surface Casing 17"Tricone to 20; (14"surface casing)
Main Hole 121/4"Tncone to 1340'
Core: NA
Bottom Hole 8 3/4"Tncone to 1643'
Footage Plugged: 1643' Cored: NA
Drilling Medium: Air: Foam/Water: Mud: Foam Injection:
Depths: 0-92' 92-1643'
Lost Circulation Depths: NA Regained? (Y or N):
Water Invasion Depth or Intervals: NA Estimated Inflow Rates:
Gas Invasion Depth or Interval: 1585-1600'
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): Deviation:42' @ 219 deg. Video 9 5/8"casing
Hole Cemented(Y or N ), Type: Y No.of Bags: 40 sacks for annulus
Interval: to surface
Coal Core Sent To: NA Rock Sent To: NA
Comments: Bottom of hole cemented off and drilled out to 1565'.
Bottom of 7"slotted casing 23'above D2 seam(1588-1600').
Video of 9 5/8"casing shows separations at 866',1040'and 1207'. Cemented off and milled out.
9 5/8'casing abandoned to surface with 6 cubic yds. Portland type II cement;4 sacks hole plug;
48 sacks(7200 gallons)plug gel, 2 sacks(10')cement September,2009.