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 B Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC -61357 (State or Federal) Surface Owner: Hotchkiss
Date Commenced: 5 -Aug -09 Date Completed: 9 -Aug -09
Contractor: Himes Drilling Rig Type: Atlas Copco RD20
Geologist: Doug Allen Date : 13 -Nov -00- Toolpusher: Matt Himes
Driller: Jim Weatherton Truck Driver: Shaun L. Helper: Dave T.
Sam Homedew
Tommy Dennis Eldon S.
Coordinates: N. 17103.54 E.
33525.98
Location: Township, Range & Section:
SW 1/4, Sec. 31, T. 12 S., R. 90 W.
Ground Elevation: 8138' Collar Elevation:
Geophysical Log Measured From: ground
Elevation
Total Depth: 2162' 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: 0-2070' Recovered (Y or N):
N
Depth: 2022-2162' Recovered (Y or N):
N
Bit Information
Surface Casing 16" Tricone to 20' (14" surface casing)
Main Hole 121/4" PDC from 20-2070'
Core:
Bottom Hole 8 3/4" Tricone from 2070-2162'
Footage Plugged: 0-2162' Cored: NA
Drilling Medium: Air: Foam (Water: Mud: Foam Injection:
Depths: 0-1701' 1701-2162'
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: no logging due to close proximity to GVB 16-01
Logs Run: Gamma:
Temperature:
Resistivity:
Other (SP, Foc. Elec., Drift, Dep., Sonic):
Hole Cemented (Y or N ), Type: Y
Coal Core Sent To: NA
Comments: 7" casing overlaps 48' inside 9 5/8" casing
Neutron:
Density:
Caliper:
No. of Bags: 6 yds for 9 5/8" annulus
Interval: to surface
Rock Sent To: NA
9 5/8" casing abandoned to surface with 27 yds portland type II cement October, 2011
Himes Drilling Colorado water well license #1285