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 11-01B Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC -61357 (State or Federal) Surface Owner: USFS
Date Commenced: 11 -Aug -07 Date Completed: 1 -Sep -07
Contractor: Stewart Bros.
Rig Type: Failing 2500 Rig 45
Geologist: Doug Allen
Date : 15 -Jan -08 Toolpusher:
Justin Barns
Driller: Bryan Joe
Truck Driver: J. Billy Helper:
S. Platero
Bryan Tulley
T. Martinez
C. Charley
Earl Martinez
D. Hudson
0. Chacho
Coordinates: N. 19852.34
E. 27335.57
Location: Township, Range & Section:
NE 1/4 Sec. 35, T. 12S., R, 90W.
Ground Elevation: 8193'
Collar Elevation:
Geophysical Log Measured From:
Ground Elevation
Total Depth: 2220'
Probe Depth: 2212' Fluid Level:
NA
Casing Type: steel, T&C
Size: 9 5/8"
Casing Type: steel, FJ
Size: 7"(5 slotted, 5 solid)
Depth: 9 5/8": 0-2000' Recovered (Y or N): N
7": 1952-2152'
N
Bit Information
Surface Casing
Main Hole
Core:
Bottom Hole
to 20'; (14" su
12 1/4" Tricone
8 3/4" Tricone to 2220'
Footage Plugged: 2220' Cored: NA
Drilling Medium: Air: Foam/Water: Mud: Foam Injection:
Depths: 0-20' 20-2220'
Lost Circulation Depths: NA Regained ? (Y or N):
Water Invasion Depth or Intervals: NA Estimated Inflow Rates:
Gas Invasion Depth or Interval: 2180-2195'
Geophysical Logging Contractor: Jet West Geophysical, LLC
Logs Run: Gamma: X Neutron:
Temperature: Density: X
Resistivity: X Caliper: X
Other (SP, Foe. Elec., Drift, Dep., Sonic): Deviation: 45' @ 235 deg.
Hole Cemented (Y or N ), Type: Y
No. of Bags: 10 yds portland for 9 5/8 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
12 1/4" to 2000' for 9 5/8" casing. Cuttings filled bottom hole durinq reaming, cleaned out to
9' cement plug from 2152-2161'. Bottom of 7" slotted casing 30' above D2 seam (2182-21931.
Rig 45 redirected on 8/20 to begin GVB 09-02, bottom hole completed by Rig 48 on 9/1/07.
9 5/8" casing abandoned to surface with 24 cubic yards portland type 11 cement July, 2008.