2015-11-06_PERMIT FILE - C1981022A

• Permit No: C1981022A
• IBM Index Class Name: Permit File
• Doc Date: 11/6/2015
• 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- LW07 -02 Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC -61357 (State or Federal) Surface Owner: USFS
Date Commenced: 18- Jun -06 Date Completed: 7- Jul -06
Contractor: WDC Drilling, Inc. Rig Type: Gefco 90K
Cored:
Geologist: Ken Ball/ D. 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. 16094.03 E.
26150.74
NA
Location: Township, Range & Section:
SE 1/4 Sec. 35, T. 12 S., R. 91 W.
Ground Elevation: 7807' Collar Elevation:
Geophysical Logging Contractor:
Geophysical Log Measured From: Ground
Elevation
X
Total Depth: 1720' Probe Depth:
1640'
Fluid Level: NA
Casing Type: steel, T &C
Size:
9 5/8"
Casing Type: slotted steel, T &C
Size:
7
Depth: 1494' Recovered (Y or N):
N- cemented
No. of Bags: 15 yds porrtland for annulus
Depth: 1434 -1720' Recovered (Y or N):
N -loose
Interval: to surface
Bit Information
Rock Sent To: NA
Surface Casing 17" Tri -cone (14" casing) from 0 -20'
Main Hole 12 1/4" Tri -cone to 1494'
Core:
Bottom Hole 8 3/4" Tri -cone to 1720'
Footage Plugged: 1720'
Cored:
NA
Drilling Medium: Air:
Sta -Foam 202/Water:
Mud: Foam Injection:
Depths: 0 -20'
20 -1720'
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; Welenco; Century Geophysical
Logs Run: Gamma:
X
Neutron:
Temperature:
Density: X
Resistivity:
X
Caliper: X
Other (SP, Foc. Elec., Drift, Dep., Sonic): - 2
gyro deviation surveys: +/- 40' @ 280 deg.
Hole Cemented( Y or N ),Type:
Y
No. of Bags: 15 yds porrtland for annulus
Interval: to surface
Coal Core Sent To: NA
Rock Sent To: NA
Comments: Hole drilled into gob pos - longwalling. Mine void not encountered. Drilled hole
100' past projected D2 elevation with no sign of void. Installed 207.5' slotted casing below 80'
solid; 7" casing overlaps 62' inside 9 5/8" casing.
Two deviation surveys, two surface re- surveys confirm correct location and depth.
Halliburton attempts to frac strata at mine horizon with 24,000 gallons water. No pressure built
Methane pump set up on hole, but did not draw sufficient amount of gas to run. Pump pulled.
9 5/8" casing abandon to surface with 21 supersacks plug qel, 3 sacks (10') cement Auaust. 2006.