2018-04-18_PERMIT FILE - C1981022A ‎(2)‎

• Permit No: C1981022A
• IBM Index Class Name: Permit File
• Doc Date: 4/18/2018
• Doc Name: Borehole Abandonment Reports
• Section_Exhibit Name: Exhibit 2.04-E3 Tab I/Item 9
• Media Type: D
• Archive: Yes

Oxbow Mining LLC
Elk Creek Mine
Hole Number: GVB 16-01 E Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC -61357 (State or Federal) Surface Owner: Hotchkiss
Date Commenced: 5 -Oct -10 Date Completed: 10 -Oct -10
Contractor: Himes Drilling
Rig Type: Atlas Copco RD20
Drilling Medium: Air: Foam (Water:
Geologist: Doug Allen
Date :
5 -Dec -10
Toolpusher: Matt Himes
Driller: Jim Weatherton
Truck Driver:
Kirk Homedew
Helper: Jake C.
Sam Homedew
Geophysical Logging Contractor: Directional hole- no logging
Will Juusola
Trey H.
Coordinates: N. 17121.20
E.
33757.50
Resistivity:
Location: Township, Range & Section:
SE 1/4, Sec. 31, T. 12 S., R. 90 W.
Ground Elevation: 8121'
Collar Elevation:
Geophysical Log Measured From:
ground
Elevation
Total Depth: 2252'
Probe Depth:
NA
Fluid Level: NA
Casing Type: steel T&C
Size:
9 5/8"
Casing Type: sol/slot steel T&C
Size:
7"
Depth: 0-2164'
Recovered (Y or N):
N
Depth: 2088-2245'
Recovered (Y or N):
N
Bit Information
Surface Casing 16" Tricone to 20'
(14" surface casing)
Main Hole 121/4" PDC from 20-2164'
Core:
Bottom Hole 8 3/4" Tricone from 2164-2252'
Footage Plugged: 0-2252' Cored:
NA
Drilling Medium: Air: Foam (Water:
Mud: Foam Injection:
Depths: 0-152' 152-2252'
Lost Circulation Depths: 1935-21647 2245-2252'
Regained ? (Y or N): N
Water Invasion Depth or Intervals:
Estimated Inflow Rates:
Gas Invasion Depth or Interval: 1924-2245'
Geophysical Logging Contractor: Directional hole- no logging
Logs Run: Gamma:
Neutron:
Temperature:
Density:
Resistivity:
Caliper:
Other (SP, Foc. Elec., Drift, Dep., Sonic):
Hole Cemented (Y or N ), Type
Coal Core Sent To: NA
Y
No. of Bags: 5 yds for 9 5/8" annulus
Interval: to surface
Rock Sent To: NA
Comments: 7" casing overlaps 76' inside 9 5/8" casing.
121/4" directional hole steered by Scientific Drilling. Bottom of 9 5/8" casing located 554.23
at azimuth 118.13 from suface location. Drilled into gob behind longwall.
9 5/8" casing abandoned to surface with 26 yds Portland type II cement October, 2011
Himes Drilling Colorado water well license # 1285