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-LW08-03 Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC-61357 (State or Federal) Surface Owner: BLM
Date Commenced: 8-Jul-06 Date Completed: 30-Jul-06
Contractor: WDC Drilling,Inc. Rig Type: Gefco 90K
Geologist: Doug Allen Date: 15-Oct-06 Toolpusher: Kevin Jones
Driller: Alan Taylor Truck Driver: Robert Labahn Helper: James Timms
Kevin Lewis Marvin Eldridge Bill Spain
Coordinates: N. 16359.21 E. 28212.23
Location: Township, Range&Section: SW 1/4 Sec.36,T. 12 S.,R. 91 W.
Ground Elevation: 7877' Collar Elevation:
Geophysical Log Measured From: Ground Elevation
Total Depth: 1780' Probe Depth: 1772' Fluid Level: NA
Casing Type: steel,T&C Size: 95/8"
Casing Type: slotted steel, T&C Size: 7"
Depth: 0-1504'* Recovered(Y or N): N-cemented
Depth: 1302.5-1720' Recovered(Y or N): N-loose
Bit Information
Surface Casing 17" Tri-cone(14"casing)from 0-19'
Main Hole 121/4"Tri-cone to 1620'
Core:
Bottom Hole 8 3/4"Tri-cone to 1780'
Footage Plugged: 1780' Cored: 0
Drilling Medium: Air: Sta-Foam 202/Water: Mud: Foam Injection:
Depths: 0-20' 20-1780'
Lost Circulation Depths: NA Regained? (Y or N):
Water Invasion Depth or Intervals: NA Estimated Inflow Rates:
Gas Invasion Depth or Interval: NA
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: 10' @ 208 degrees. Videolog.
Hole Cemented(Y or N ),Type: Y No.of Bags: 4 yds,portiand for 9 5/8 annulus
Interval: to surface
Coal Core Sent To: NA Rock Sent To: NA
Comments: * 9 A"casing parted from 1334-1343'. Bottom of dropped joints(1421)
landed 195'above D2 seam.
Daily report incorrectly states casing set on bottom @ 1554',actually @ 1504'including 9'parting.
21 joints of 7"(7 slotted below 14 solid)overlap 30'Inside intact, uppermost string of 9 5/811
.
9 5/8"casing abandoned to surface with 23 cubic yards portland type 11 cement July,2009.