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 17-04B Project ID.: Elk Creek Mine Gob Vent Boreholes
Lease Number: COC -61357 (State or Federal) Surface Owner: Hotchkiss
Date Commenced: 6 -Jul -11 Date Completed: 11 -Jul -11
Contractor: Himes Drilling Rig Type: Atlas Copco RD20
Geologist: Doug Allen Date :
26 -Oct -11
Toolpusher: Matt Himes
Driller: Jim Weatherton Truck Driver:
Jason Grundy
Helper: Kenny N.
Kirk Homedew
Will Juusola
Cameron S.
Coordinates: N. 17544.06 E.
36084.75
Location: Township, Range & Section:
SE 1/4, Sec. 31, T. 12 S., R. 90 W.
Ground Elevation: 8104' Collar Elevation:
Geophysical Log Measured From: ground
Elevation
Total Depth: 2312' Probe Depth:
NA
Fluid Level: NA
Casing Type: steel T&C
Size:
9 5/8"
Casing Type: sol/slot steel TFC-
Size:
7"
Depth: 0-2010' Recovered (Y or N):
N
Depth: 1960.3-2312' Recovered (Y or N):
N
Bit Information
Surface Casing 17" Hammer to 40'(14" surface casing)
Main Hole 12114" PDC from 40-2010'
Core:
Bottom Hole 8 3/4" PDC from 2010-2312'
Footage Plugged: 0-2312' Cored: NA
Drilling Medium: Air: Foam (Water: Mud: Foam Injection:
Depths: 0-40' 40-2312'
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: directional hole- no logging
Logs Run: Gamma:
Temperature:
Resistivity:
Other (SP, Foc. Elec., Drift, Dep., Sonic):
Hole Cemented (Y or N ), Type:
Coal Core Sent To: NA
N
Neutron:
Density:
Caliper:
No. of Bags: 6 yds for 9 5'8" annulus
Interval: to surface
Rock Sent To: NA
Comments: 7" casing overlaps 49.7' inside 9 5/8" casing.
298.5' slotted 7" casing below 53.2' solid 7" casing. Landed at 2306.3'.
Drilled directionally from 500-2010'. Bottom of 9 518" casing located 360' at azimuth 318.23 degrees.
9 5/8" casing abandoned to surface with 28 cubic yards portland cement slurry May, 2012.
Himes Drilling Colorado water well license #1285